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Load performance improvement (ignoring UGRID) #6088

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merged 11 commits into from
Jul 29, 2024

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@stephenworsley stephenworsley commented Jul 26, 2024

🚀 Pull Request

Attempts to address performance slowdowns highlighted here #6075

@stephenworsley stephenworsley added the benchmark_this Request that this pull request be benchmarked to check if it introduces performance shifts label Jul 26, 2024
* main:
  Mesh nonexperimental extra (SciTools#6077)
  Mesh nonexperimental (SciTools#6061)

# Conflicts:
#	lib/iris/experimental/ugrid/cf.py
@stephenworsley stephenworsley added benchmark_this Request that this pull request be benchmarked to check if it introduces performance shifts and removed benchmark_this Request that this pull request be benchmarked to check if it introduces performance shifts labels Jul 26, 2024
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⏱️ Performance Benchmark Report: 609d5d2

Performance shifts
| Change   | Before [4585059b]    | After [609d5d26]    |   Ratio | Benchmark (Parameter)                                          |
|----------|----------------------|---------------------|---------|----------------------------------------------------------------|
| -        | 29.9±0.5ms           | 24.7±0.4ms          |    0.82 | load.LoadAndRealise.time_load((1280, 960, 5), False, 'NetCDF') |
| -        | 26.9±0.4ms           | 22.0±0.2ms          |    0.82 | load.LoadAndRealise.time_load((1280, 960, 5), True, 'NetCDF')  |
| -        | 26.8±0.7ms           | 22.0±0.6ms          |    0.82 | load.LoadAndRealise.time_load((2, 2, 1000), False, 'NetCDF')   |
| -        | 27.1±0.1ms           | 21.9±0.4ms          |    0.81 | load.LoadAndRealise.time_load((2, 2, 1000), True, 'NetCDF')    |
| -        | 25.5±0.4ms           | 20.6±0.5ms          |    0.81 | load.LoadAndRealise.time_load((50, 50, 2), False, 'NetCDF')    |
| -        | 26.0±0.5ms           | 20.6±0.3ms          |    0.79 | load.LoadAndRealise.time_load((50, 50, 2), True, 'NetCDF')     |
| -        | 492±3ms              | 367±3ms             |    0.75 | load.ManyVars.time_many_var_load                               |
| -        | 29.7±0.9ms           | 24.5±0.3ms          |    0.82 | load.TimeConstraint.time_time_constraint(20, 'NetCDF')         |
| -        | 29.7±0.3ms           | 23.5±0.4ms          |    0.79 | load.TimeConstraint.time_time_constraint(3, 'NetCDF')          |
Full benchmark results

Benchmarks that have improved:

| Change   | Before [4585059b]    | After [609d5d26]    |   Ratio | Benchmark (Parameter)                                          |
|----------|----------------------|---------------------|---------|----------------------------------------------------------------|
| -        | 29.9±0.5ms           | 24.7±0.4ms          |    0.82 | load.LoadAndRealise.time_load((1280, 960, 5), False, 'NetCDF') |
| -        | 26.9±0.4ms           | 22.0±0.2ms          |    0.82 | load.LoadAndRealise.time_load((1280, 960, 5), True, 'NetCDF')  |
| -        | 26.8±0.7ms           | 22.0±0.6ms          |    0.82 | load.LoadAndRealise.time_load((2, 2, 1000), False, 'NetCDF')   |
| -        | 27.1±0.1ms           | 21.9±0.4ms          |    0.81 | load.LoadAndRealise.time_load((2, 2, 1000), True, 'NetCDF')    |
| -        | 25.5±0.4ms           | 20.6±0.5ms          |    0.81 | load.LoadAndRealise.time_load((50, 50, 2), False, 'NetCDF')    |
| -        | 26.0±0.5ms           | 20.6±0.3ms          |    0.79 | load.LoadAndRealise.time_load((50, 50, 2), True, 'NetCDF')     |
| -        | 492±3ms              | 367±3ms             |    0.75 | load.ManyVars.time_many_var_load                               |
| -        | 29.7±0.9ms           | 24.5±0.3ms          |    0.82 | load.TimeConstraint.time_time_constraint(20, 'NetCDF')         |
| -        | 29.7±0.3ms           | 23.5±0.4ms          |    0.79 | load.TimeConstraint.time_time_constraint(3, 'NetCDF')          |

Benchmarks that have stayed the same:

| Change   | Before [4585059b]    | After [609d5d26]    | Ratio   | Benchmark (Parameter)                                                                          |
|----------|----------------------|---------------------|---------|------------------------------------------------------------------------------------------------|
|          | 54.0±0.9ms           | 54.2±0.7ms          | 1.00    | aggregate_collapse.Aggregation.time_aggregated_by_COUNT(False)                                 |
|          | 55.5±0.6ms           | 54.9±0.8ms          | 0.99    | aggregate_collapse.Aggregation.time_aggregated_by_COUNT(True)                                  |
|          | 195±4ms              | 193±2ms             | 0.99    | aggregate_collapse.Aggregation.time_aggregated_by_FAST_PERCENTILE(False)                       |
|          | 196±3ms              | 192±2ms             | 0.98    | aggregate_collapse.Aggregation.time_aggregated_by_FAST_PERCENTILE(True)                        |
|          | 37.1±0.5ms           | 36.6±0.6ms          | 0.98    | aggregate_collapse.Aggregation.time_aggregated_by_GMEAN(False)                                 |
|          | 37.4±1ms             | 38.1±0.5ms          | 1.02    | aggregate_collapse.Aggregation.time_aggregated_by_GMEAN(True)                                  |
|          | 37.1±1ms             | 37.6±0.6ms          | 1.01    | aggregate_collapse.Aggregation.time_aggregated_by_HMEAN(False)                                 |
|          | 37.8±1ms             | 38.0±0.4ms          | 1.01    | aggregate_collapse.Aggregation.time_aggregated_by_HMEAN(True)                                  |
|          | 47.2±1ms             | 46.8±0.5ms          | 0.99    | aggregate_collapse.Aggregation.time_aggregated_by_MAX(False)                                   |
|          | 47.6±0.7ms           | 47.8±0.7ms          | 1.01    | aggregate_collapse.Aggregation.time_aggregated_by_MAX(True)                                    |
|          | 123±2ms              | 121±1ms             | 0.99    | aggregate_collapse.Aggregation.time_aggregated_by_MAX_RUN(False)                               |
|          | 123±3ms              | 122±2ms             | 0.99    | aggregate_collapse.Aggregation.time_aggregated_by_MAX_RUN(True)                                |
|          | 52.0±1ms             | 52.2±0.8ms          | 1.00    | aggregate_collapse.Aggregation.time_aggregated_by_MEAN(False)                                  |
|          | 51.8±1ms             | 53.1±0.9ms          | 1.03    | aggregate_collapse.Aggregation.time_aggregated_by_MEAN(True)                                   |
|          | 36.4±1ms             | 37.4±0.6ms          | 1.03    | aggregate_collapse.Aggregation.time_aggregated_by_MEDIAN(False)                                |
|          | 37.4±0.9ms           | 37.6±1ms            | 1.00    | aggregate_collapse.Aggregation.time_aggregated_by_MEDIAN(True)                                 |
|          | 47.0±1ms             | 47.5±0.8ms          | 1.01    | aggregate_collapse.Aggregation.time_aggregated_by_MIN(False)                                   |
|          | 47.5±0.8ms           | 48.1±0.6ms          | 1.01    | aggregate_collapse.Aggregation.time_aggregated_by_MIN(True)                                    |
|          | 1.32±0.01s           | 1.32±0.01s          | 1.00    | aggregate_collapse.Aggregation.time_aggregated_by_PEAK(False)                                  |
|          | 1.31±0.01s           | 1.33±0.01s          | 1.01    | aggregate_collapse.Aggregation.time_aggregated_by_PEAK(True)                                   |
|          | 671±10ms             | 685±10ms            | 1.02    | aggregate_collapse.Aggregation.time_aggregated_by_PERCENTILE(False)                            |
|          | 667±10ms             | 675±10ms            | 1.01    | aggregate_collapse.Aggregation.time_aggregated_by_PERCENTILE(True)                             |
|          | 35.3±0.6ms           | 35.3±0.5ms          | 1.00    | aggregate_collapse.Aggregation.time_aggregated_by_PROPORTION(False)                            |
|          | 36.0±0.5ms           | 35.7±0.5ms          | 0.99    | aggregate_collapse.Aggregation.time_aggregated_by_PROPORTION(True)                             |
|          | 62.0±0.7ms           | 62.3±0.9ms          | 1.01    | aggregate_collapse.Aggregation.time_aggregated_by_RMS(False)                                   |
|          | 62.2±1ms             | 62.9±1ms            | 1.01    | aggregate_collapse.Aggregation.time_aggregated_by_RMS(True)                                    |
|          | 66.1±0.7ms           | 66.7±0.9ms          | 1.01    | aggregate_collapse.Aggregation.time_aggregated_by_STD_DEV(False)                               |
|          | 67.1±0.9ms           | 66.8±1ms            | 1.00    | aggregate_collapse.Aggregation.time_aggregated_by_STD_DEV(True)                                |
|          | 61.3±0.8ms           | 61.7±0.5ms          | 1.01    | aggregate_collapse.Aggregation.time_aggregated_by_VARIANCE(False)                              |
|          | 62.6±0.8ms           | 62.4±0.5ms          | 1.00    | aggregate_collapse.Aggregation.time_aggregated_by_VARIANCE(True)                               |
|          | 20.3±0.4ms           | 20.0±0.3ms          | 0.99    | aggregate_collapse.Aggregation.time_collapsed_by_COUNT(False)                                  |
|          | 24.0±0.7ms           | 23.4±0.3ms          | 0.98    | aggregate_collapse.Aggregation.time_collapsed_by_COUNT(True)                                   |
|          | 134±3ms              | 134±3ms             | 1.00    | aggregate_collapse.Aggregation.time_collapsed_by_FAST_PERCENTILE(False)                        |
|          | 146±3ms              | 147±1ms             | 1.01    | aggregate_collapse.Aggregation.time_collapsed_by_FAST_PERCENTILE(True)                         |
|          | 18.4±0.5ms           | 18.9±0.6ms          | 1.03    | aggregate_collapse.Aggregation.time_collapsed_by_GMEAN(False)                                  |
|          | 21.8±0.5ms           | 22.1±0.7ms          | 1.01    | aggregate_collapse.Aggregation.time_collapsed_by_GMEAN(True)                                   |
|          | 18.2±0.5ms           | 18.6±0.3ms          | 1.02    | aggregate_collapse.Aggregation.time_collapsed_by_HMEAN(False)                                  |
|          | 22.3±0.6ms           | 22.3±0.3ms          | 1.00    | aggregate_collapse.Aggregation.time_collapsed_by_HMEAN(True)                                   |
|          | 19.1±0.4ms           | 18.8±0.5ms          | 0.99    | aggregate_collapse.Aggregation.time_collapsed_by_MAX(False)                                    |
|          | 22.7±0.2ms           | 22.5±0.3ms          | 0.99    | aggregate_collapse.Aggregation.time_collapsed_by_MAX(True)                                     |
|          | 34.7±0.8ms           | 34.4±1ms            | 0.99    | aggregate_collapse.Aggregation.time_collapsed_by_MAX_RUN(False)                                |
|          | 38.4±1ms             | 38.7±2ms            | 1.01    | aggregate_collapse.Aggregation.time_collapsed_by_MAX_RUN(True)                                 |
|          | 19.8±0.8ms           | 19.2±0.6ms          | 0.97    | aggregate_collapse.Aggregation.time_collapsed_by_MEAN(False)                                   |
|          | 23.4±0.5ms           | 23.5±0.5ms          | 1.01    | aggregate_collapse.Aggregation.time_collapsed_by_MEAN(True)                                    |
|          | 19.1±0.4ms           | 19.0±0.3ms          | 0.99    | aggregate_collapse.Aggregation.time_collapsed_by_MEDIAN(False)                                 |
|          | 22.9±0.6ms           | 23.2±0.6ms          | 1.01    | aggregate_collapse.Aggregation.time_collapsed_by_MEDIAN(True)                                  |
|          | 19.3±0.2ms           | 18.9±0.2ms          | 0.98    | aggregate_collapse.Aggregation.time_collapsed_by_MIN(False)                                    |
|          | 22.7±0.5ms           | 22.9±0.4ms          | 1.01    | aggregate_collapse.Aggregation.time_collapsed_by_MIN(True)                                     |
|          | 550±4ms              | 554±4ms             | 1.01    | aggregate_collapse.Aggregation.time_collapsed_by_PEAK(False)                                   |
|          | 554±2ms              | 560±3ms             | 1.01    | aggregate_collapse.Aggregation.time_collapsed_by_PEAK(True)                                    |
|          | 156±2ms              | 152±4ms             | 0.97    | aggregate_collapse.Aggregation.time_collapsed_by_PERCENTILE(False)                             |
|          | 170±2ms              | 168±3ms             | 0.99    | aggregate_collapse.Aggregation.time_collapsed_by_PERCENTILE(True)                              |
|          | 18.2±0.5ms           | 18.3±0.5ms          | 1.00    | aggregate_collapse.Aggregation.time_collapsed_by_PROPORTION(False)                             |
|          | 21.9±1ms             | 21.8±0.7ms          | 1.00    | aggregate_collapse.Aggregation.time_collapsed_by_PROPORTION(True)                              |
|          | 21.4±0.4ms           | 21.4±0.7ms          | 1.00    | aggregate_collapse.Aggregation.time_collapsed_by_RMS(False)                                    |
|          | 25.0±1ms             | 25.3±0.5ms          | 1.01    | aggregate_collapse.Aggregation.time_collapsed_by_RMS(True)                                     |
|          | 21.6±0.6ms           | 21.2±0.4ms          | 0.98    | aggregate_collapse.Aggregation.time_collapsed_by_STD_DEV(False)                                |
|          | 25.4±0.6ms           | 24.9±0.7ms          | 0.98    | aggregate_collapse.Aggregation.time_collapsed_by_STD_DEV(True)                                 |
|          | 21.0±0.6ms           | 20.6±0.4ms          | 0.98    | aggregate_collapse.Aggregation.time_collapsed_by_VARIANCE(False)                               |
|          | 24.8±0.8ms           | 24.8±0.6ms          | 1.00    | aggregate_collapse.Aggregation.time_collapsed_by_VARIANCE(True)                                |
|          | 84.1±2ms             | 83.3±1ms            | 0.99    | aggregate_collapse.WeightedAggregation.time_w_aggregated_by_MEAN(False)                        |
|          | 84.5±1ms             | 83.9±1ms            | 0.99    | aggregate_collapse.WeightedAggregation.time_w_aggregated_by_MEAN(True)                         |
|          | 95.6±2ms             | 96.2±1ms            | 1.01    | aggregate_collapse.WeightedAggregation.time_w_aggregated_by_RMS(False)                         |
|          | 97.2±2ms             | 97.3±1ms            | 1.00    | aggregate_collapse.WeightedAggregation.time_w_aggregated_by_RMS(True)                          |
|          | 59.0±1ms             | 59.6±1ms            | 1.01    | aggregate_collapse.WeightedAggregation.time_w_aggregated_by_SUM(False)                         |
|          | 59.6±1ms             | 60.1±0.5ms          | 1.01    | aggregate_collapse.WeightedAggregation.time_w_aggregated_by_SUM(True)                          |
|          | 29.7±0.6ms           | 29.5±0.6ms          | 0.99    | aggregate_collapse.WeightedAggregation.time_w_collapsed_by_MEAN(False)                         |
|          | 33.3±0.6ms           | 33.5±0.6ms          | 1.01    | aggregate_collapse.WeightedAggregation.time_w_collapsed_by_MEAN(True)                          |
|          | 31.4±0.9ms           | 31.8±0.7ms          | 1.02    | aggregate_collapse.WeightedAggregation.time_w_collapsed_by_RMS(False)                          |
|          | 35.2±0.6ms           | 35.2±0.4ms          | 1.00    | aggregate_collapse.WeightedAggregation.time_w_collapsed_by_RMS(True)                           |
|          | 26.0±0.6ms           | 26.3±0.7ms          | 1.01    | aggregate_collapse.WeightedAggregation.time_w_collapsed_by_SUM(False)                          |
|          | 29.5±0.8ms           | 29.7±0.6ms          | 1.01    | aggregate_collapse.WeightedAggregation.time_w_collapsed_by_SUM(True)                           |
|          | 326±8ms              | 329±5ms             | 1.01    | aggregate_collapse.WeightedAggregation.time_w_collapsed_by_WPERCENTILE(False)                  |
|          | 347±7ms              | 349±4ms             | 1.01    | aggregate_collapse.WeightedAggregation.time_w_collapsed_by_WPERCENTILE(True)                   |
|          | 1.10±0.01ms          | 1.11±0.02ms         | 1.01    | cube.CubeCreation.time_create(False, 'construct')                                              |
|          | 395±7μs              | 400±2μs             | 1.01    | cube.CubeCreation.time_create(False, 'instantiate')                                            |
|          | 939±7μs              | 950±9μs             | 1.01    | cube.CubeCreation.time_create(True, 'construct')                                               |
|          | 574±4μs              | 583±4μs             | 1.01    | cube.CubeCreation.time_create(True, 'instantiate')                                             |
|          | 224±2ms              | 224±3ms             | 1.00    | cube.CubeEquality.time_equality(False, False, 'all_equal')                                     |
|          | 113±2ms              | 113±2ms             | 1.00    | cube.CubeEquality.time_equality(False, False, 'coord_inequality')                              |
|          | 234±2ms              | 232±5ms             | 0.99    | cube.CubeEquality.time_equality(False, False, 'data_inequality')                               |
|          | 16.5±0.1μs           | 16.3±0.1μs          | 0.99    | cube.CubeEquality.time_equality(False, False, 'metadata_inequality')                           |
|          | 310±3ms              | 313±4ms             | 1.01    | cube.CubeEquality.time_equality(False, True, 'all_equal')                                      |
|          | 203±2ms              | 202±3ms             | 1.00    | cube.CubeEquality.time_equality(False, True, 'coord_inequality')                               |
|          | 320±5ms              | 320±4ms             | 1.00    | cube.CubeEquality.time_equality(False, True, 'data_inequality')                                |
|          | 16.8±0.2μs           | 16.6±0.1μs          | 0.99    | cube.CubeEquality.time_equality(False, True, 'metadata_inequality')                            |
|          | 229±5ms              | 224±4ms             | 0.98    | cube.CubeEquality.time_equality(True, False, 'all_equal')                                      |
|          | 115±2ms              | 115±1ms             | 1.00    | cube.CubeEquality.time_equality(True, False, 'coord_inequality')                               |
|          | 235±3ms              | 235±2ms             | 1.00    | cube.CubeEquality.time_equality(True, False, 'data_inequality')                                |
|          | 53.1±0.5μs           | 52.9±0.6μs          | 1.00    | cube.CubeEquality.time_equality(True, False, 'metadata_inequality')                            |
|          | 313±3ms              | 308±3ms             | 0.98    | cube.CubeEquality.time_equality(True, True, 'all_equal')                                       |
|          | 207±3ms              | 201±3ms             | 0.97    | cube.CubeEquality.time_equality(True, True, 'coord_inequality')                                |
|          | 328±3ms              | 317±4ms             | 0.97    | cube.CubeEquality.time_equality(True, True, 'data_inequality')                                 |
|          | 53.9±0.4μs           | 54.9±1μs            | 1.02    | cube.CubeEquality.time_equality(True, True, 'metadata_inequality')                             |
|          | 664±10μs             | 665±8μs             | 1.00    | import_iris.Iris.time__concatenate                                                             |
|          | 182±1μs              | 181±3μs             | 1.00    | import_iris.Iris.time__constraints                                                             |
|          | 112±2μs              | 110±2μs             | 0.98    | import_iris.Iris.time__data_manager                                                            |
|          | 93.3±0.5μs           | 94.2±0.4μs          | 1.01    | import_iris.Iris.time__deprecation                                                             |
|          | 136±1μs              | 137±1μs             | 1.00    | import_iris.Iris.time__lazy_data                                                               |
|          | 906±9μs              | 898±10μs            | 0.99    | import_iris.Iris.time__merge                                                                   |
|          | 76.7±0.3μs           | 78.1±1μs            | 1.02    | import_iris.Iris.time__representation                                                          |
|          | 489±6μs              | 500±8μs             | 1.02    | import_iris.Iris.time_analysis                                                                 |
|          | 140±1μs              | 142±3μs             | 1.02    | import_iris.Iris.time_analysis__area_weighted                                                  |
|          | 110±0.5μs            | 109±2μs             | 0.99    | import_iris.Iris.time_analysis__grid_angles                                                    |
|          | 244±3μs              | 240±4μs             | 0.99    | import_iris.Iris.time_analysis__interpolation                                                  |
|          | 187±2μs              | 191±3μs             | 1.02    | import_iris.Iris.time_analysis__regrid                                                         |
|          | 112±2μs              | 112±3μs             | 1.01    | import_iris.Iris.time_analysis__scipy_interpolate                                              |
|          | 139±4μs              | 139±2μs             | 1.00    | import_iris.Iris.time_analysis_calculus                                                        |
|          | 325±2μs              | 329±6μs             | 1.01    | import_iris.Iris.time_analysis_cartography                                                     |
|          | 93.9±2μs             | 95.0±1μs            | 1.01    | import_iris.Iris.time_analysis_geomerty                                                        |
|          | 217±3μs              | 216±3μs             | 1.00    | import_iris.Iris.time_analysis_maths                                                           |
|          | 97.5±0.5μs           | 98.0±1μs            | 1.00    | import_iris.Iris.time_analysis_stats                                                           |
|          | 173±2μs              | 172±2μs             | 0.99    | import_iris.Iris.time_analysis_trajectory                                                      |
|          | 310±5μs              | 306±3μs             | 0.99    | import_iris.Iris.time_aux_factory                                                              |
|          | 84.5±0.8μs           | 83.7±0.7μs          | 0.99    | import_iris.Iris.time_common                                                                   |
|          | 163±3μs              | 166±5μs             | 1.02    | import_iris.Iris.time_common_lenient                                                           |
|          | 1.35±0.01ms          | 1.34±0.01ms         | 0.99    | import_iris.Iris.time_common_metadata                                                          |
|          | 132±2μs              | 135±3μs             | 1.02    | import_iris.Iris.time_common_mixin                                                             |
|          | 1.19±0.01ms          | 1.18±0.01ms         | 0.99    | import_iris.Iris.time_common_resolve                                                           |
|          | 198±2μs              | 199±2μs             | 1.00    | import_iris.Iris.time_config                                                                   |
|          | 114±0.4μs            | 118±2μs             | 1.03    | import_iris.Iris.time_coord_categorisation                                                     |
|          | 367±7μs              | 364±4μs             | 0.99    | import_iris.Iris.time_coord_systems                                                            |
|          | 750±8μs              | 745±10μs            | 0.99    | import_iris.Iris.time_coords                                                                   |
|          | 685±6μs              | 675±6μs             | 0.98    | import_iris.Iris.time_cube                                                                     |
|          | 227±3μs              | 227±4μs             | 1.00    | import_iris.Iris.time_exceptions                                                               |
|          | 77.2±0.4μs           | 78.0±0.6μs          | 1.01    | import_iris.Iris.time_experimental                                                             |
|          | 186±1μs              | 186±2μs             | 1.00    | import_iris.Iris.time_fileformats                                                              |
|          | 252±3μs              | 255±2μs             | 1.01    | import_iris.Iris.time_fileformats__ff                                                          |
|          | 2.71±0.01ms          | 2.69±0.01ms         | 0.99    | import_iris.Iris.time_fileformats__ff_cross_references                                         |
|          | 79.4±0.5μs           | 81.0±1μs            | 1.02    | import_iris.Iris.time_fileformats__pp_lbproc_pairs                                             |
|          | 116±1μs              | 115±0.9μs           | 0.98    | import_iris.Iris.time_fileformats_abf                                                          |
|          | 410±9μs              | 434±4μs             | 1.06    | import_iris.Iris.time_fileformats_cf                                                           |
|          | 5.54±0.2ms           | 5.40±0.1ms          | 0.97    | import_iris.Iris.time_fileformats_dot                                                          |
|          | 75.0±0.4μs           | 75.7±0.5μs          | 1.01    | import_iris.Iris.time_fileformats_name                                                         |
|          | 256±3μs              | 257±1μs             | 1.00    | import_iris.Iris.time_fileformats_name_loaders                                                 |
|          | 120±1μs              | 119±1μs             | 1.00    | import_iris.Iris.time_fileformats_netcdf                                                       |
|          | 123±0.9μs            | 124±4μs             | 1.01    | import_iris.Iris.time_fileformats_nimrod                                                       |
|          | 210±2μs              | 212±5μs             | 1.01    | import_iris.Iris.time_fileformats_nimrod_load_rules                                            |
|          | 785±20μs             | 783±9μs             | 1.00    | import_iris.Iris.time_fileformats_pp                                                           |
|          | 182±4μs              | 182±3μs             | 1.00    | import_iris.Iris.time_fileformats_pp_load_rules                                                |
|          | 134±1μs              | 136±2μs             | 1.02    | import_iris.Iris.time_fileformats_pp_save_rules                                                |
|          | 517±4μs              | 513±7μs             | 0.99    | import_iris.Iris.time_fileformats_rules                                                        |
|          | 219±2μs              | 223±5μs             | 1.02    | import_iris.Iris.time_fileformats_structured_array_identification                              |
|          | 84.3±0.6μs           | 84.2±0.4μs          | 1.00    | import_iris.Iris.time_fileformats_um                                                           |
|          | 163±2μs              | 163±3μs             | 1.00    | import_iris.Iris.time_fileformats_um__fast_load                                                |
|          | 137±2μs              | 137±2μs             | 1.00    | import_iris.Iris.time_fileformats_um__fast_load_structured_fields                              |
|          | 75.3±0.5μs           | 76.5±0.6μs          | 1.02    | import_iris.Iris.time_fileformats_um__ff_replacement                                           |
|          | 82.6±0.2μs           | 83.2±0.5μs          | 1.01    | import_iris.Iris.time_fileformats_um__optimal_array_structuring                                |
|          | 973±5μs              | 978±4μs             | 1.00    | import_iris.Iris.time_fileformats_um_cf_map                                                    |
|          | 138±0.8μs            | 137±0.9μs           | 0.99    | import_iris.Iris.time_io                                                                       |
|          | 175±2μs              | 174±3μs             | 1.00    | import_iris.Iris.time_io_format_picker                                                         |
|          | 230±3μs              | 231±2μs             | 1.00    | import_iris.Iris.time_iris                                                                     |
|          | 128±0.7μs            | 128±0.9μs           | 1.00    | import_iris.Iris.time_iterate                                                                  |
|          | 8.47±0.1ms           | 8.39±0.07ms         | 0.99    | import_iris.Iris.time_palette                                                                  |
|          | 2.21±0.03ms          | 2.22±0.04ms         | 1.01    | import_iris.Iris.time_plot                                                                     |
|          | 104±2μs              | 104±0.6μs           | 1.00    | import_iris.Iris.time_quickplot                                                                |
|          | 2.13±0.02ms          | 2.16±0.02ms         | 1.01    | import_iris.Iris.time_std_names                                                                |
|          | 1.76±0.01ms          | 1.79±0.04ms         | 1.02    | import_iris.Iris.time_symbols                                                                  |
|          | 12.1±0.7ms           | 12.1±0.7ms          | 1.00    | import_iris.Iris.time_tests                                                                    |
|          | 253±3μs              | 257±2μs             | 1.01    | import_iris.Iris.time_third_party_cartopy                                                      |
|          | 4.86±0.07ms          | 4.83±0.09ms         | 0.99    | import_iris.Iris.time_third_party_cf_units                                                     |
|          | 119±0.6μs            | 120±0.5μs           | 1.01    | import_iris.Iris.time_third_party_cftime                                                       |
|          | 2.78±0.02ms          | 2.80±0.03ms         | 1.01    | import_iris.Iris.time_third_party_matplotlib                                                   |
|          | 1.06±0.01ms          | 1.07±0.01ms         | 1.00    | import_iris.Iris.time_third_party_numpy                                                        |
|          | 170±3μs              | 176±2μs             | 1.04    | import_iris.Iris.time_third_party_scipy                                                        |
|          | 100±0.9μs            | 101±2μs             | 1.00    | import_iris.Iris.time_time                                                                     |
|          | 319±6μs              | 321±6μs             | 1.01    | import_iris.Iris.time_util                                                                     |
|          | 72.8±0.9μs           | 74.3±0.6μs          | 1.02    | iterate.IZip.time_izip                                                                         |
|          | 8.14±0.08ms          | 8.07±0.05ms         | 0.99    | load.LoadAndRealise.time_load((1280, 960, 5), False, 'FF')                                     |
|          | 8.89±0.1ms           | 8.84±0.1ms          | 0.99    | load.LoadAndRealise.time_load((1280, 960, 5), False, 'PP')                                     |
|          | 8.03±0.09ms          | 8.09±0.04ms         | 1.01    | load.LoadAndRealise.time_load((1280, 960, 5), True, 'FF')                                      |
|          | 8.80±0.1ms           | 8.98±0.08ms         | 1.02    | load.LoadAndRealise.time_load((1280, 960, 5), True, 'PP')                                      |
|          | 1.36±0.02s           | 1.38±0.01s          | 1.01    | load.LoadAndRealise.time_load((2, 2, 1000), False, 'FF')                                       |
|          | 1.51±0.01s           | 1.54±0.01s          | 1.02    | load.LoadAndRealise.time_load((2, 2, 1000), False, 'PP')                                       |
|          | 1.35±0.01s           | 1.37±0.01s          | 1.01    | load.LoadAndRealise.time_load((2, 2, 1000), True, 'FF')                                        |
|          | 1.52±0.02s           | 1.53±0.01s          | 1.01    | load.LoadAndRealise.time_load((2, 2, 1000), True, 'PP')                                        |
|          | 3.93±0.06ms          | 3.90±0.03ms         | 0.99    | load.LoadAndRealise.time_load((50, 50, 2), False, 'FF')                                        |
|          | 4.23±0.07ms          | 4.20±0.01ms         | 0.99    | load.LoadAndRealise.time_load((50, 50, 2), False, 'PP')                                        |
|          | 3.94±0.1ms           | 3.95±0.02ms         | 1.00    | load.LoadAndRealise.time_load((50, 50, 2), True, 'FF')                                         |
|          | 4.23±0.07ms          | 4.19±0.02ms         | 0.99    | load.LoadAndRealise.time_load((50, 50, 2), True, 'PP')                                         |
|          | 32.1±2ms             | 33.8±3ms            | 1.05    | load.LoadAndRealise.time_realise((1280, 960, 5), False, 'FF')                                  |
|          | 19.6±0.7ms           | 19.4±0.4ms          | 0.99    | load.LoadAndRealise.time_realise((1280, 960, 5), False, 'NetCDF')                              |
|          | 13.1±1ms             | 13.2±2ms            | 1.00    | load.LoadAndRealise.time_realise((1280, 960, 5), False, 'PP')                                  |
|          | 26.0±1ms             | 27.2±2ms            | 1.05    | load.LoadAndRealise.time_realise((1280, 960, 5), True, 'FF')                                   |
|          | 70.7±2ms             | 70.5±2ms            | 1.00    | load.LoadAndRealise.time_realise((1280, 960, 5), True, 'NetCDF')                               |
|          | 25.6±0.8ms           | 26.1±0.9ms          | 1.02    | load.LoadAndRealise.time_realise((1280, 960, 5), True, 'PP')                                   |
|          | 445±7ms              | 451±4ms             | 1.01    | load.LoadAndRealise.time_realise((2, 2, 1000), False, 'FF')                                    |
|          | 3.01±0.1ms           | 2.98±0.09ms         | 0.99    | load.LoadAndRealise.time_realise((2, 2, 1000), False, 'NetCDF')                                |
|          | 449±6ms              | 455±3ms             | 1.01    | load.LoadAndRealise.time_realise((2, 2, 1000), False, 'PP')                                    |
|          | 450±5ms              | 452±3ms             | 1.01    | load.LoadAndRealise.time_realise((2, 2, 1000), True, 'FF')                                     |
|          | 3.04±0.07ms          | 3.13±0.2ms          | 1.03    | load.LoadAndRealise.time_realise((2, 2, 1000), True, 'NetCDF')                                 |
|          | 457±6ms              | 460±5ms             | 1.01    | load.LoadAndRealise.time_realise((2, 2, 1000), True, 'PP')                                     |
|          | 1.61±0.1ms           | 1.61±0.07ms         | 1.00    | load.LoadAndRealise.time_realise((50, 50, 2), False, 'FF')                                     |
|          | 2.99±0.1ms           | 3.05±0.04ms         | 1.02    | load.LoadAndRealise.time_realise((50, 50, 2), False, 'NetCDF')                                 |
|          | 1.59±0.06ms          | 1.58±0.08ms         | 0.99    | load.LoadAndRealise.time_realise((50, 50, 2), False, 'PP')                                     |
|          | 1.63±0.1ms           | 1.58±0.1ms          | 0.97    | load.LoadAndRealise.time_realise((50, 50, 2), True, 'FF')                                      |
|          | 3.19±0.08ms          | 3.13±0.04ms         | 0.98    | load.LoadAndRealise.time_realise((50, 50, 2), True, 'NetCDF')                                  |
|          | 1.58±0.1ms           | 1.55±0.05ms         | 0.98    | load.LoadAndRealise.time_realise((50, 50, 2), True, 'PP')                                      |
|          | 8.18±0.09ms          | 8.30±0.1ms          | 1.02    | load.STASHConstraint.time_stash_constraint((1280, 960, 5), 'FF')                               |
|          | 9.01±0.1ms           | 9.28±0.1ms          | 1.03    | load.STASHConstraint.time_stash_constraint((1280, 960, 5), 'PP')                               |
|          | 1.37±0.02s           | 1.38±0.01s          | 1.01    | load.STASHConstraint.time_stash_constraint((2, 2, 1000), 'FF')                                 |
|          | 1.56±0.02s           | 1.54±0.01s          | 0.99    | load.STASHConstraint.time_stash_constraint((2, 2, 1000), 'PP')                                 |
|          | 3.98±0.07ms          | 4.02±0.06ms         | 1.01    | load.STASHConstraint.time_stash_constraint((2, 2, 2), 'FF')                                    |
|          | 4.24±0.03ms          | 4.28±0.04ms         | 1.01    | load.STASHConstraint.time_stash_constraint((2, 2, 2), 'PP')                                    |
|          | 8.06±0.09ms          | 8.15±0.1ms          | 1.01    | load.StructuredFF.time_structured_load((1280, 960, 5), False)                                  |
|          | 4.82±0.07ms          | 4.82±0.2ms          | 1.00    | load.StructuredFF.time_structured_load((1280, 960, 5), True)                                   |
|          | 1.35±0.02s           | 1.36±0.02s          | 1.01    | load.StructuredFF.time_structured_load((2, 2, 1000), False)                                    |
|          | 369±2ms              | 373±4ms             | 1.01    | load.StructuredFF.time_structured_load((2, 2, 1000), True)                                     |
|          | 3.88±0.04ms          | 3.98±0.03ms         | 1.03    | load.StructuredFF.time_structured_load((2, 2, 2), False)                                       |
|          | 3.55±0.03ms          | 3.62±0.02ms         | 1.02    | load.StructuredFF.time_structured_load((2, 2, 2), True)                                        |
|          | 149±0.9ms            | 149±2ms             | 1.00    | load.TimeConstraint.time_time_constraint(20, 'FF')                                             |
|          | 165±0.8ms            | 166±2ms             | 1.01    | load.TimeConstraint.time_time_constraint(20, 'PP')                                             |
|          | 29.8±0.2ms           | 29.8±0.4ms          | 1.00    | load.TimeConstraint.time_time_constraint(3, 'FF')                                              |
|          | 32.1±0.4ms           | 32.1±0.8ms          | 1.00    | load.TimeConstraint.time_time_constraint(3, 'PP')                                              |
|          | 18.1±0.3ms           | 18.0±0.3ms          | 1.00    | load.ugrid.BasicLoading.time_load_file(1)                                                      |
|          | 42.4±0.7ms           | 41.6±0.7ms          | 0.98    | load.ugrid.BasicLoading.time_load_file(200000)                                                 |
|          | 14.7±0.5ms           | 14.6±0.3ms          | 0.99    | load.ugrid.BasicLoading.time_load_mesh(1)                                                      |
|          | 22.9±0.4ms           | 22.8±0.3ms          | 1.00    | load.ugrid.BasicLoading.time_load_mesh(200000)                                                 |
|          | 18.2±0.3ms           | 17.5±0.3ms          | 0.96    | load.ugrid.BasicLoadingTime.time_load_file(1)                                                  |
|          | 20.6±0.5ms           | 20.6±0.4ms          | 1.00    | load.ugrid.BasicLoadingTime.time_load_file(200000)                                             |
|          | 14.2±0.3ms           | 14.6±0.3ms          | 1.03    | load.ugrid.BasicLoadingTime.time_load_mesh(1)                                                  |
|          | 17.3±0.5ms           | 17.2±0.8ms          | 1.00    | load.ugrid.BasicLoadingTime.time_load_mesh(200000)                                             |
|          | 18.4±0.3ms           | 18.5±0.4ms          | 1.00    | load.ugrid.Callback.time_load_file_callback(1)                                                 |
|          | 50.8±0.4ms           | 51.3±0.8ms          | 1.01    | load.ugrid.Callback.time_load_file_callback(200000)                                            |
|          | 18.6±0.2ms           | 19.0±0.5ms          | 1.02    | load.ugrid.CallbackTime.time_load_file_callback(1)                                             |
|          | 23.0±0.2ms           | 22.4±0.6ms          | 0.97    | load.ugrid.CallbackTime.time_load_file_callback(200000)                                        |
|          | 2.88±0.09ms          | 2.97±0.2ms          | 1.03    | load.ugrid.DataRealisation.time_realise_data(10000)                                            |
|          | 5.60±0.8ms           | 4.18±1ms            | ~0.75   | load.ugrid.DataRealisation.time_realise_data(200000)                                           |
|          | 39.4±1ms             | 37.9±2ms            | 0.96    | load.ugrid.DataRealisationTime.time_realise_data(10000)                                        |
|          | 804±5ms              | 799±9ms             | 0.99    | load.ugrid.DataRealisationTime.time_realise_data(200000)                                       |
|          | 121±2ms              | 120±1ms             | 0.99    | merge_concat.Concatenate.time_concatenate                                                      |
|          | 24.1                 | 24.1                | 1.00    | merge_concat.Concatenate.track_mem_merge                                                       |
|          | 50.5±1ms             | 48.9±1ms            | 0.97    | merge_concat.Merge.time_merge                                                                  |
|          | 11.0                 | 11.0                | 1.00    | merge_concat.Merge.track_mem_merge                                                             |
|          | 396±2ns              | 401±2ns             | 1.01    | mesh.utils.regions_combine.CombineRegionsComputeRealData.time_compute_data(50)                 |
|          | 257±2ms              | 257±4ms             | 1.00    | mesh.utils.regions_combine.CombineRegionsComputeRealData.time_compute_data(500)                |
|          | 0.6                  | 0.6                 | 1.00    | mesh.utils.regions_combine.CombineRegionsComputeRealData.track_addedmem_compute_data(50)       |
|          | 57.3                 | 57.3                | 1.00    | mesh.utils.regions_combine.CombineRegionsComputeRealData.track_addedmem_compute_data(500)      |
|          | 14.6±0.07ms          | 14.5±0.2ms          | 1.00    | mesh.utils.regions_combine.CombineRegionsCreateCube.time_create_combined_cube(50)              |
|          | 16.2±0.1ms           | 16.8±0.6ms          | 1.04    | mesh.utils.regions_combine.CombineRegionsCreateCube.time_create_combined_cube(500)             |
|          | 0.5                  | 0.5                 | 1.00    | mesh.utils.regions_combine.CombineRegionsCreateCube.track_addedmem_create_combined_cube(50)    |
|          | 11.8                 | 11.8                | 1.00    | mesh.utils.regions_combine.CombineRegionsCreateCube.track_addedmem_create_combined_cube(500)   |
|          | 107±3ms              | 107±1ms             | 1.00    | mesh.utils.regions_combine.CombineRegionsFileStreamedCalc.time_stream_file2file(50)            |
|          | 713±7ms              | 708±6ms             | 0.99    | mesh.utils.regions_combine.CombineRegionsFileStreamedCalc.time_stream_file2file(500)           |
|          | 1.4                  | 1.4                 | 1.00    | mesh.utils.regions_combine.CombineRegionsFileStreamedCalc.track_addedmem_stream_file2file(50)  |
|          | 92.0                 | 92.0                | 1.00    | mesh.utils.regions_combine.CombineRegionsFileStreamedCalc.track_addedmem_stream_file2file(500) |
|          | 67.4±0.6ms           | 68.6±1ms            | 1.02    | mesh.utils.regions_combine.CombineRegionsSaveData.time_save(50)                                |
|          | 661±6ms              | 661±3ms             | 1.00    | mesh.utils.regions_combine.CombineRegionsSaveData.time_save(500)                               |
|          | 1.4                  | 1.3                 | 0.93    | mesh.utils.regions_combine.CombineRegionsSaveData.track_addedmem_save(50)                      |
|          | 92.0                 | 92.0                | 1.00    | mesh.utils.regions_combine.CombineRegionsSaveData.track_addedmem_save(500)                     |
|          | 2.1752849999999997   | 2.1752849999999997  | 1.00    | mesh.utils.regions_combine.CombineRegionsSaveData.track_filesize_saved(50)                     |
|          | 216.01528499999998   | 216.01528499999998  | 1.00    | mesh.utils.regions_combine.CombineRegionsSaveData.track_filesize_saved(500)                    |
|          | 6.63±0.06ms          | 6.59±0.1ms          | 0.99    | plot.AuxSort.time_aux_sort                                                                     |
|          | 79.3±4ms             | 77.8±5ms            | 0.98    | regridding.CurvilinearRegridding.time_regrid_pic                                               |
|          | 144.9                | 144.9               | 1.00    | regridding.CurvilinearRegridding.track_mem_regrid_pic                                          |
|          | 98.6±0.7ms           | 99.2±0.9ms          | 1.01    | regridding.HorizontalChunkedRegridding.time_regrid_area_w                                      |
|          | 50.0±1ms             | 48.8±2ms            | 0.98    | regridding.HorizontalChunkedRegridding.time_regrid_area_w_new_grid                             |
|          | 111.6                | 111.6               | 1.00    | regridding.HorizontalChunkedRegridding.track_mem_regrid_area_w                                 |
|          | 150.6                | 150.6               | 1.00    | regridding.HorizontalChunkedRegridding.track_mem_regrid_area_w_new_grid                        |
|          | 4.07±0.03ms          | 4.19±0.2ms          | 1.03    | save.NetcdfSave.time_netcdf_save_cube(50, False)                                               |
|          | 72.8±1ms             | 73.9±2ms            | 1.01    | save.NetcdfSave.time_netcdf_save_cube(50, True)                                                |
|          | 52.9±1ms             | 52.5±1ms            | 0.99    | save.NetcdfSave.time_netcdf_save_cube(600, False)                                              |
|          | 562±4ms              | 567±5ms             | 1.01    | save.NetcdfSave.time_netcdf_save_cube(600, True)                                               |
|          | 90.8±1ns             | 89.9±1ns            | 0.99    | save.NetcdfSave.time_netcdf_save_mesh(50, False)                                               |
|          | 56.9±1ms             | 56.0±0.6ms          | 0.98    | save.NetcdfSave.time_netcdf_save_mesh(50, True)                                                |
|          | 90.9±0.8ns           | 90.6±0.4ns          | 1.00    | save.NetcdfSave.time_netcdf_save_mesh(600, False)                                              |
|          | 496±2ms              | 494±5ms             | 1.00    | save.NetcdfSave.time_netcdf_save_mesh(600, True)                                               |
|          | 0.3                  | 0.3                 | 1.00    | save.NetcdfSave.track_addedmem_netcdf_save(50, False)                                          |
|          | 2.0                  | 1.9                 | 0.95    | save.NetcdfSave.track_addedmem_netcdf_save(50, True)                                           |
|          | 0.3                  | 0.3                 | 1.00    | save.NetcdfSave.track_addedmem_netcdf_save(600, False)                                         |
|          | 181.7                | 214.6               | 1.18    | save.NetcdfSave.track_addedmem_netcdf_save(600, True)                                          |
|          | 42.3±1ms             | 42.6±1ms            | 1.01    | stats.PearsonR.time_lazy                                                                       |
|          | 19.0±0.2ms           | 19.2±0.2ms          | 1.01    | stats.PearsonR.time_real                                                                       |
|          | 19.5                 | 19.6                | 1.01    | stats.PearsonR.track_lazy                                                                      |
|          | 17.8                 | 17.8                | 1.00    | stats.PearsonR.track_real                                                                      |
|          | 24.7±0.5ms           | 23.7±1ms            | 0.96    | trajectory.TrajectoryInterpolation.time_trajectory_linear                                      |
|          | 62.2±0.6ms           | 61.6±0.5ms          | 0.99    | trajectory.TrajectoryInterpolation.time_trajectory_nearest                                     |
|          | 32.2                 | 32.2                | 1.00    | trajectory.TrajectoryInterpolation.track_trajectory_linear                                     |
|          | 21.6                 | 21.6                | 1.00    | trajectory.TrajectoryInterpolation.track_trajectory_nearest                                    |

Generated by GHA run 10110379459

@pp-mo
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pp-mo commented Jul 26, 2024

Initial benchmark results are interesting. not all straightforward.
I'm going to run that again ...

@pp-mo pp-mo added benchmark_this Request that this pull request be benchmarked to check if it introduces performance shifts and removed benchmark_this Request that this pull request be benchmarked to check if it introduces performance shifts labels Jul 26, 2024
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pp-mo commented Jul 26, 2024

Initial benchmark results are interesting. not all straightforward. I'm going to run that again ...

WHOOPS sorry, I did that to the wrong PR

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codecov bot commented Jul 26, 2024

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 89.77%. Comparing base (83905e9) to head (1be7516).

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##             main    #6088   +/-   ##
=======================================
  Coverage   89.77%   89.77%           
=======================================
  Files          88       88           
  Lines       23011    23026   +15     
  Branches     5032     5036    +4     
=======================================
+ Hits        20657    20672   +15     
  Misses       1623     1623           
  Partials      731      731           

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@stephenworsley stephenworsley added benchmark_this Request that this pull request be benchmarked to check if it introduces performance shifts and removed benchmark_this Request that this pull request be benchmarked to check if it introduces performance shifts labels Jul 26, 2024
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⏱️ Performance Benchmark Report: 621b9b8

Performance shifts
| Change   | Before [4585059b]    | After [621b9b83]    |   Ratio | Benchmark (Parameter)                                          |
|----------|----------------------|---------------------|---------|----------------------------------------------------------------|
| -        | 31.0±0.3ms           | 25.0±0.8ms          |    0.81 | load.LoadAndRealise.time_load((1280, 960, 5), False, 'NetCDF') |
| -        | 28.1±0.5ms           | 22.3±0.5ms          |    0.79 | load.LoadAndRealise.time_load((1280, 960, 5), True, 'NetCDF')  |
| -        | 28.0±0.5ms           | 21.9±0.2ms          |    0.78 | load.LoadAndRealise.time_load((2, 2, 1000), False, 'NetCDF')   |
| -        | 27.0±0.5ms           | 22.0±0.2ms          |    0.82 | load.LoadAndRealise.time_load((2, 2, 1000), True, 'NetCDF')    |
| -        | 26.2±0.3ms           | 20.5±0.4ms          |    0.78 | load.LoadAndRealise.time_load((50, 50, 2), False, 'NetCDF')    |
| -        | 26.5±0.2ms           | 20.6±0.4ms          |    0.78 | load.LoadAndRealise.time_load((50, 50, 2), True, 'NetCDF')     |
| -        | 507±7ms              | 375±6ms             |    0.74 | load.ManyVars.time_many_var_load                               |
| -        | 30.2±0.7ms           | 24.5±0.4ms          |    0.81 | load.TimeConstraint.time_time_constraint(20, 'NetCDF')         |
| -        | 30.0±0.5ms           | 24.4±0.6ms          |    0.81 | load.TimeConstraint.time_time_constraint(3, 'NetCDF')          |
Full benchmark results

Benchmarks that have improved:

| Change   | Before [4585059b]    | After [621b9b83]    |   Ratio | Benchmark (Parameter)                                          |
|----------|----------------------|---------------------|---------|----------------------------------------------------------------|
| -        | 31.0±0.3ms           | 25.0±0.8ms          |    0.81 | load.LoadAndRealise.time_load((1280, 960, 5), False, 'NetCDF') |
| -        | 28.1±0.5ms           | 22.3±0.5ms          |    0.79 | load.LoadAndRealise.time_load((1280, 960, 5), True, 'NetCDF')  |
| -        | 28.0±0.5ms           | 21.9±0.2ms          |    0.78 | load.LoadAndRealise.time_load((2, 2, 1000), False, 'NetCDF')   |
| -        | 27.0±0.5ms           | 22.0±0.2ms          |    0.82 | load.LoadAndRealise.time_load((2, 2, 1000), True, 'NetCDF')    |
| -        | 26.2±0.3ms           | 20.5±0.4ms          |    0.78 | load.LoadAndRealise.time_load((50, 50, 2), False, 'NetCDF')    |
| -        | 26.5±0.2ms           | 20.6±0.4ms          |    0.78 | load.LoadAndRealise.time_load((50, 50, 2), True, 'NetCDF')     |
| -        | 507±7ms              | 375±6ms             |    0.74 | load.ManyVars.time_many_var_load                               |
| -        | 30.2±0.7ms           | 24.5±0.4ms          |    0.81 | load.TimeConstraint.time_time_constraint(20, 'NetCDF')         |
| -        | 30.0±0.5ms           | 24.4±0.6ms          |    0.81 | load.TimeConstraint.time_time_constraint(3, 'NetCDF')          |

Benchmarks that have stayed the same:

| Change   | Before [4585059b]    | After [621b9b83]    |   Ratio | Benchmark (Parameter)                                                                          |
|----------|----------------------|---------------------|---------|------------------------------------------------------------------------------------------------|
|          | 54.3±0.9ms           | 53.9±0.9ms          |    0.99 | aggregate_collapse.Aggregation.time_aggregated_by_COUNT(False)                                 |
|          | 55.9±1ms             | 55.1±0.6ms          |    0.99 | aggregate_collapse.Aggregation.time_aggregated_by_COUNT(True)                                  |
|          | 195±3ms              | 195±2ms             |    1    | aggregate_collapse.Aggregation.time_aggregated_by_FAST_PERCENTILE(False)                       |
|          | 195±3ms              | 194±3ms             |    0.99 | aggregate_collapse.Aggregation.time_aggregated_by_FAST_PERCENTILE(True)                        |
|          | 37.5±0.8ms           | 37.2±0.9ms          |    0.99 | aggregate_collapse.Aggregation.time_aggregated_by_GMEAN(False)                                 |
|          | 38.6±0.4ms           | 38.4±0.8ms          |    0.99 | aggregate_collapse.Aggregation.time_aggregated_by_GMEAN(True)                                  |
|          | 38.3±0.9ms           | 37.9±1ms            |    0.99 | aggregate_collapse.Aggregation.time_aggregated_by_HMEAN(False)                                 |
|          | 38.4±1ms             | 38.2±0.5ms          |    1    | aggregate_collapse.Aggregation.time_aggregated_by_HMEAN(True)                                  |
|          | 46.8±0.7ms           | 47.4±0.9ms          |    1.01 | aggregate_collapse.Aggregation.time_aggregated_by_MAX(False)                                   |
|          | 48.9±0.6ms           | 48.5±1ms            |    0.99 | aggregate_collapse.Aggregation.time_aggregated_by_MAX(True)                                    |
|          | 121±2ms              | 122±2ms             |    1    | aggregate_collapse.Aggregation.time_aggregated_by_MAX_RUN(False)                               |
|          | 123±1ms              | 122±2ms             |    0.99 | aggregate_collapse.Aggregation.time_aggregated_by_MAX_RUN(True)                                |
|          | 51.7±0.9ms           | 51.1±0.8ms          |    0.99 | aggregate_collapse.Aggregation.time_aggregated_by_MEAN(False)                                  |
|          | 52.9±0.7ms           | 52.2±0.5ms          |    0.99 | aggregate_collapse.Aggregation.time_aggregated_by_MEAN(True)                                   |
|          | 37.8±0.6ms           | 37.5±0.7ms          |    0.99 | aggregate_collapse.Aggregation.time_aggregated_by_MEDIAN(False)                                |
|          | 38.2±0.5ms           | 37.7±0.7ms          |    0.99 | aggregate_collapse.Aggregation.time_aggregated_by_MEDIAN(True)                                 |
|          | 48.0±1ms             | 47.4±1ms            |    0.99 | aggregate_collapse.Aggregation.time_aggregated_by_MIN(False)                                   |
|          | 48.5±1ms             | 48.2±1ms            |    0.99 | aggregate_collapse.Aggregation.time_aggregated_by_MIN(True)                                    |
|          | 1.30±0.01s           | 1.31±0.02s          |    1.01 | aggregate_collapse.Aggregation.time_aggregated_by_PEAK(False)                                  |
|          | 1.32±0.02s           | 1.32±0.01s          |    1    | aggregate_collapse.Aggregation.time_aggregated_by_PEAK(True)                                   |
|          | 690±10ms             | 685±10ms            |    0.99 | aggregate_collapse.Aggregation.time_aggregated_by_PERCENTILE(False)                            |
|          | 683±10ms             | 692±9ms             |    1.01 | aggregate_collapse.Aggregation.time_aggregated_by_PERCENTILE(True)                             |
|          | 35.8±2ms             | 35.7±0.4ms          |    1    | aggregate_collapse.Aggregation.time_aggregated_by_PROPORTION(False)                            |
|          | 36.6±1ms             | 36.4±0.6ms          |    1    | aggregate_collapse.Aggregation.time_aggregated_by_PROPORTION(True)                             |
|          | 62.8±1ms             | 64.2±1ms            |    1.02 | aggregate_collapse.Aggregation.time_aggregated_by_RMS(False)                                   |
|          | 63.1±1ms             | 64.2±1ms            |    1.02 | aggregate_collapse.Aggregation.time_aggregated_by_RMS(True)                                    |
|          | 66.4±1ms             | 68.2±1ms            |    1.03 | aggregate_collapse.Aggregation.time_aggregated_by_STD_DEV(False)                               |
|          | 67.5±1ms             | 67.7±0.5ms          |    1    | aggregate_collapse.Aggregation.time_aggregated_by_STD_DEV(True)                                |
|          | 63.0±0.7ms           | 62.5±0.8ms          |    0.99 | aggregate_collapse.Aggregation.time_aggregated_by_VARIANCE(False)                              |
|          | 63.8±0.9ms           | 62.9±0.5ms          |    0.99 | aggregate_collapse.Aggregation.time_aggregated_by_VARIANCE(True)                               |
|          | 20.9±0.4ms           | 21.1±0.8ms          |    1.01 | aggregate_collapse.Aggregation.time_collapsed_by_COUNT(False)                                  |
|          | 24.3±0.8ms           | 24.3±0.9ms          |    1    | aggregate_collapse.Aggregation.time_collapsed_by_COUNT(True)                                   |
|          | 137±4ms              | 138±3ms             |    1    | aggregate_collapse.Aggregation.time_collapsed_by_FAST_PERCENTILE(False)                        |
|          | 152±3ms              | 150±2ms             |    0.99 | aggregate_collapse.Aggregation.time_collapsed_by_FAST_PERCENTILE(True)                         |
|          | 19.1±0.6ms           | 19.4±0.5ms          |    1.02 | aggregate_collapse.Aggregation.time_collapsed_by_GMEAN(False)                                  |
|          | 23.0±0.9ms           | 22.6±1ms            |    0.98 | aggregate_collapse.Aggregation.time_collapsed_by_GMEAN(True)                                   |
|          | 19.2±1ms             | 19.0±0.6ms          |    0.99 | aggregate_collapse.Aggregation.time_collapsed_by_HMEAN(False)                                  |
|          | 22.6±0.7ms           | 22.7±0.8ms          |    1    | aggregate_collapse.Aggregation.time_collapsed_by_HMEAN(True)                                   |
|          | 19.8±0.8ms           | 19.1±0.3ms          |    0.96 | aggregate_collapse.Aggregation.time_collapsed_by_MAX(False)                                    |
|          | 23.2±0.8ms           | 24.0±0.8ms          |    1.03 | aggregate_collapse.Aggregation.time_collapsed_by_MAX(True)                                     |
|          | 35.5±0.9ms           | 35.0±0.9ms          |    0.99 | aggregate_collapse.Aggregation.time_collapsed_by_MAX_RUN(False)                                |
|          | 38.8±0.8ms           | 38.6±1ms            |    0.99 | aggregate_collapse.Aggregation.time_collapsed_by_MAX_RUN(True)                                 |
|          | 20.3±0.7ms           | 20.9±0.7ms          |    1.03 | aggregate_collapse.Aggregation.time_collapsed_by_MEAN(False)                                   |
|          | 23.2±0.8ms           | 23.6±0.6ms          |    1.02 | aggregate_collapse.Aggregation.time_collapsed_by_MEAN(True)                                    |
|          | 20.2±1ms             | 19.9±1ms            |    0.98 | aggregate_collapse.Aggregation.time_collapsed_by_MEDIAN(False)                                 |
|          | 23.6±0.9ms           | 24.2±0.8ms          |    1.03 | aggregate_collapse.Aggregation.time_collapsed_by_MEDIAN(True)                                  |
|          | 19.3±0.6ms           | 19.4±0.7ms          |    1    | aggregate_collapse.Aggregation.time_collapsed_by_MIN(False)                                    |
|          | 23.3±0.7ms           | 24.0±0.5ms          |    1.03 | aggregate_collapse.Aggregation.time_collapsed_by_MIN(True)                                     |
|          | 554±4ms              | 551±2ms             |    0.99 | aggregate_collapse.Aggregation.time_collapsed_by_PEAK(False)                                   |
|          | 562±4ms              | 558±3ms             |    0.99 | aggregate_collapse.Aggregation.time_collapsed_by_PEAK(True)                                    |
|          | 155±5ms              | 156±3ms             |    1.01 | aggregate_collapse.Aggregation.time_collapsed_by_PERCENTILE(False)                             |
|          | 171±3ms              | 171±4ms             |    1    | aggregate_collapse.Aggregation.time_collapsed_by_PERCENTILE(True)                              |
|          | 19.2±0.8ms           | 19.1±1ms            |    1    | aggregate_collapse.Aggregation.time_collapsed_by_PROPORTION(False)                             |
|          | 22.2±0.6ms           | 22.6±0.9ms          |    1.02 | aggregate_collapse.Aggregation.time_collapsed_by_PROPORTION(True)                              |
|          | 22.1±0.7ms           | 21.9±0.6ms          |    0.99 | aggregate_collapse.Aggregation.time_collapsed_by_RMS(False)                                    |
|          | 26.0±0.8ms           | 26.6±0.5ms          |    1.02 | aggregate_collapse.Aggregation.time_collapsed_by_RMS(True)                                     |
|          | 21.7±0.4ms           | 21.8±0.3ms          |    1.01 | aggregate_collapse.Aggregation.time_collapsed_by_STD_DEV(False)                                |
|          | 25.5±0.5ms           | 26.2±0.6ms          |    1.03 | aggregate_collapse.Aggregation.time_collapsed_by_STD_DEV(True)                                 |
|          | 21.8±0.7ms           | 21.6±1ms            |    0.99 | aggregate_collapse.Aggregation.time_collapsed_by_VARIANCE(False)                               |
|          | 25.2±0.7ms           | 24.7±0.4ms          |    0.98 | aggregate_collapse.Aggregation.time_collapsed_by_VARIANCE(True)                                |
|          | 84.2±0.8ms           | 84.5±1ms            |    1    | aggregate_collapse.WeightedAggregation.time_w_aggregated_by_MEAN(False)                        |
|          | 84.6±2ms             | 85.1±1ms            |    1.01 | aggregate_collapse.WeightedAggregation.time_w_aggregated_by_MEAN(True)                         |
|          | 96.2±2ms             | 96.4±1ms            |    1    | aggregate_collapse.WeightedAggregation.time_w_aggregated_by_RMS(False)                         |
|          | 97.7±2ms             | 96.8±0.8ms          |    0.99 | aggregate_collapse.WeightedAggregation.time_w_aggregated_by_RMS(True)                          |
|          | 59.7±1ms             | 59.1±2ms            |    0.99 | aggregate_collapse.WeightedAggregation.time_w_aggregated_by_SUM(False)                         |
|          | 59.6±1ms             | 60.2±0.7ms          |    1.01 | aggregate_collapse.WeightedAggregation.time_w_aggregated_by_SUM(True)                          |
|          | 30.0±0.4ms           | 29.7±0.9ms          |    0.99 | aggregate_collapse.WeightedAggregation.time_w_collapsed_by_MEAN(False)                         |
|          | 33.3±0.8ms           | 33.2±0.6ms          |    1    | aggregate_collapse.WeightedAggregation.time_w_collapsed_by_MEAN(True)                          |
|          | 32.2±0.9ms           | 32.3±1ms            |    1    | aggregate_collapse.WeightedAggregation.time_w_collapsed_by_RMS(False)                          |
|          | 35.3±0.6ms           | 35.9±0.4ms          |    1.02 | aggregate_collapse.WeightedAggregation.time_w_collapsed_by_RMS(True)                           |
|          | 26.6±0.5ms           | 26.6±0.5ms          |    1    | aggregate_collapse.WeightedAggregation.time_w_collapsed_by_SUM(False)                          |
|          | 30.4±0.5ms           | 30.5±0.7ms          |    1    | aggregate_collapse.WeightedAggregation.time_w_collapsed_by_SUM(True)                           |
|          | 330±5ms              | 329±3ms             |    1    | aggregate_collapse.WeightedAggregation.time_w_collapsed_by_WPERCENTILE(False)                  |
|          | 347±5ms              | 346±3ms             |    1    | aggregate_collapse.WeightedAggregation.time_w_collapsed_by_WPERCENTILE(True)                   |
|          | 1.13±0.01ms          | 1.14±0.02ms         |    1.01 | cube.CubeCreation.time_create(False, 'construct')                                              |
|          | 402±4μs              | 409±7μs             |    1.02 | cube.CubeCreation.time_create(False, 'instantiate')                                            |
|          | 958±10μs             | 984±30μs            |    1.03 | cube.CubeCreation.time_create(True, 'construct')                                               |
|          | 586±5μs              | 583±7μs             |    0.99 | cube.CubeCreation.time_create(True, 'instantiate')                                             |
|          | 227±4ms              | 228±4ms             |    1    | cube.CubeEquality.time_equality(False, False, 'all_equal')                                     |
|          | 115±2ms              | 115±2ms             |    1    | cube.CubeEquality.time_equality(False, False, 'coord_inequality')                              |
|          | 239±5ms              | 240±3ms             |    1    | cube.CubeEquality.time_equality(False, False, 'data_inequality')                               |
|          | 16.5±0.1μs           | 16.7±0.3μs          |    1.01 | cube.CubeEquality.time_equality(False, False, 'metadata_inequality')                           |
|          | 320±5ms              | 314±6ms             |    0.98 | cube.CubeEquality.time_equality(False, True, 'all_equal')                                      |
|          | 205±3ms              | 205±4ms             |    1    | cube.CubeEquality.time_equality(False, True, 'coord_inequality')                               |
|          | 330±9ms              | 324±8ms             |    0.98 | cube.CubeEquality.time_equality(False, True, 'data_inequality')                                |
|          | 16.8±0.1μs           | 17.0±0.4μs          |    1.01 | cube.CubeEquality.time_equality(False, True, 'metadata_inequality')                            |
|          | 231±3ms              | 229±7ms             |    0.99 | cube.CubeEquality.time_equality(True, False, 'all_equal')                                      |
|          | 115±2ms              | 115±2ms             |    1    | cube.CubeEquality.time_equality(True, False, 'coord_inequality')                               |
|          | 241±3ms              | 241±5ms             |    1    | cube.CubeEquality.time_equality(True, False, 'data_inequality')                                |
|          | 52.7±0.5μs           | 53.8±0.7μs          |    1.02 | cube.CubeEquality.time_equality(True, False, 'metadata_inequality')                            |
|          | 317±5ms              | 315±3ms             |    0.99 | cube.CubeEquality.time_equality(True, True, 'all_equal')                                       |
|          | 206±5ms              | 206±3ms             |    1    | cube.CubeEquality.time_equality(True, True, 'coord_inequality')                                |
|          | 327±5ms              | 329±7ms             |    1.01 | cube.CubeEquality.time_equality(True, True, 'data_inequality')                                 |
|          | 54.2±0.8μs           | 56.0±0.8μs          |    1.03 | cube.CubeEquality.time_equality(True, True, 'metadata_inequality')                             |
|          | 665±5μs              | 670±7μs             |    1.01 | import_iris.Iris.time__concatenate                                                             |
|          | 186±4μs              | 182±2μs             |    0.98 | import_iris.Iris.time__constraints                                                             |
|          | 111±0.9μs            | 113±3μs             |    1.02 | import_iris.Iris.time__data_manager                                                            |
|          | 95.0±0.7μs           | 94.4±1μs            |    0.99 | import_iris.Iris.time__deprecation                                                             |
|          | 136±1μs              | 137±1μs             |    1    | import_iris.Iris.time__lazy_data                                                               |
|          | 907±10μs             | 897±9μs             |    0.99 | import_iris.Iris.time__merge                                                                   |
|          | 77.2±0.5μs           | 77.2±0.4μs          |    1    | import_iris.Iris.time__representation                                                          |
|          | 492±5μs              | 496±5μs             |    1.01 | import_iris.Iris.time_analysis                                                                 |
|          | 140±2μs              | 142±1μs             |    1.01 | import_iris.Iris.time_analysis__area_weighted                                                  |
|          | 111±0.7μs            | 111±1μs             |    0.99 | import_iris.Iris.time_analysis__grid_angles                                                    |
|          | 243±3μs              | 246±3μs             |    1.01 | import_iris.Iris.time_analysis__interpolation                                                  |
|          | 188±4μs              | 192±4μs             |    1.02 | import_iris.Iris.time_analysis__regrid                                                         |
|          | 114±3μs              | 113±1μs             |    0.98 | import_iris.Iris.time_analysis__scipy_interpolate                                              |
|          | 141±1μs              | 141±0.9μs           |    1    | import_iris.Iris.time_analysis_calculus                                                        |
|          | 331±4μs              | 328±3μs             |    0.99 | import_iris.Iris.time_analysis_cartography                                                     |
|          | 95.1±1μs             | 94.0±0.7μs          |    0.99 | import_iris.Iris.time_analysis_geomerty                                                        |
|          | 220±3μs              | 218±2μs             |    0.99 | import_iris.Iris.time_analysis_maths                                                           |
|          | 98.2±1μs             | 97.7±2μs            |    1    | import_iris.Iris.time_analysis_stats                                                           |
|          | 174±2μs              | 178±2μs             |    1.02 | import_iris.Iris.time_analysis_trajectory                                                      |
|          | 321±8μs              | 324±10μs            |    1.01 | import_iris.Iris.time_aux_factory                                                              |
|          | 84.5±0.8μs           | 84.7±0.5μs          |    1    | import_iris.Iris.time_common                                                                   |
|          | 163±3μs              | 163±2μs             |    1    | import_iris.Iris.time_common_lenient                                                           |
|          | 1.35±0.02ms          | 1.33±0.02ms         |    0.99 | import_iris.Iris.time_common_metadata                                                          |
|          | 132±1μs              | 133±3μs             |    1    | import_iris.Iris.time_common_mixin                                                             |
|          | 1.19±0.02ms          | 1.18±0.01ms         |    0.99 | import_iris.Iris.time_common_resolve                                                           |
|          | 204±1μs              | 202±4μs             |    0.99 | import_iris.Iris.time_config                                                                   |
|          | 116±0.8μs            | 115±0.6μs           |    0.99 | import_iris.Iris.time_coord_categorisation                                                     |
|          | 384±10μs             | 364±4μs             |    0.95 | import_iris.Iris.time_coord_systems                                                            |
|          | 761±10μs             | 750±8μs             |    0.99 | import_iris.Iris.time_coords                                                                   |
|          | 688±20μs             | 671±5μs             |    0.98 | import_iris.Iris.time_cube                                                                     |
|          | 229±4μs              | 226±8μs             |    0.98 | import_iris.Iris.time_exceptions                                                               |
|          | 77.9±0.6μs           | 77.1±0.6μs          |    0.99 | import_iris.Iris.time_experimental                                                             |
|          | 187±1μs              | 189±4μs             |    1.01 | import_iris.Iris.time_fileformats                                                              |
|          | 252±3μs              | 256±7μs             |    1.01 | import_iris.Iris.time_fileformats__ff                                                          |
|          | 2.70±0.03ms          | 2.71±0.03ms         |    1    | import_iris.Iris.time_fileformats__ff_cross_references                                         |
|          | 80.5±0.5μs           | 78.7±0.6μs          |    0.98 | import_iris.Iris.time_fileformats__pp_lbproc_pairs                                             |
|          | 115±0.8μs            | 115±1μs             |    1    | import_iris.Iris.time_fileformats_abf                                                          |
|          | 417±3μs              | 440±7μs             |    1.06 | import_iris.Iris.time_fileformats_cf                                                           |
|          | 5.64±0.1ms           | 5.57±0.07ms         |    0.99 | import_iris.Iris.time_fileformats_dot                                                          |
|          | 75.1±0.5μs           | 75.0±0.6μs          |    1    | import_iris.Iris.time_fileformats_name                                                         |
|          | 258±2μs              | 257±1μs             |    1    | import_iris.Iris.time_fileformats_name_loaders                                                 |
|          | 121±2μs              | 120±2μs             |    0.99 | import_iris.Iris.time_fileformats_netcdf                                                       |
|          | 125±1μs              | 124±3μs             |    0.99 | import_iris.Iris.time_fileformats_nimrod                                                       |
|          | 217±4μs              | 212±4μs             |    0.98 | import_iris.Iris.time_fileformats_nimrod_load_rules                                            |
|          | 794±8μs              | 780±6μs             |    0.98 | import_iris.Iris.time_fileformats_pp                                                           |
|          | 183±3μs              | 179±2μs             |    0.97 | import_iris.Iris.time_fileformats_pp_load_rules                                                |
|          | 133±1μs              | 133±1μs             |    1    | import_iris.Iris.time_fileformats_pp_save_rules                                                |
|          | 531±20μs             | 512±8μs             |    0.96 | import_iris.Iris.time_fileformats_rules                                                        |
|          | 223±2μs              | 222±4μs             |    1    | import_iris.Iris.time_fileformats_structured_array_identification                              |
|          | 85.4±0.5μs           | 84.3±0.5μs          |    0.99 | import_iris.Iris.time_fileformats_um                                                           |
|          | 161±2μs              | 162±2μs             |    1.01 | import_iris.Iris.time_fileformats_um__fast_load                                                |
|          | 139±2μs              | 138±2μs             |    1    | import_iris.Iris.time_fileformats_um__fast_load_structured_fields                              |
|          | 76.3±0.8μs           | 75.9±1μs            |    0.99 | import_iris.Iris.time_fileformats_um__ff_replacement                                           |
|          | 83.4±2μs             | 82.3±1μs            |    0.99 | import_iris.Iris.time_fileformats_um__optimal_array_structuring                                |
|          | 985±10μs             | 1.01±0.01ms         |    1.03 | import_iris.Iris.time_fileformats_um_cf_map                                                    |
|          | 139±1μs              | 139±2μs             |    1    | import_iris.Iris.time_io                                                                       |
|          | 177±4μs              | 171±4μs             |    0.97 | import_iris.Iris.time_io_format_picker                                                         |
|          | 231±5μs              | 229±2μs             |    0.99 | import_iris.Iris.time_iris                                                                     |
|          | 128±1μs              | 126±0.8μs           |    0.98 | import_iris.Iris.time_iterate                                                                  |
|          | 8.57±0.2ms           | 8.36±0.2ms          |    0.98 | import_iris.Iris.time_palette                                                                  |
|          | 2.23±0.05ms          | 2.28±0.06ms         |    1.02 | import_iris.Iris.time_plot                                                                     |
|          | 105±0.6μs            | 105±0.8μs           |    1    | import_iris.Iris.time_quickplot                                                                |
|          | 2.20±0.05ms          | 2.21±0.07ms         |    1.01 | import_iris.Iris.time_std_names                                                                |
|          | 1.77±0.01ms          | 1.77±0.05ms         |    1    | import_iris.Iris.time_symbols                                                                  |
|          | 101±3ms              | 101±2ms             |    1    | import_iris.Iris.time_tests                                                                    |
|          | 256±3μs              | 263±6μs             |    1.03 | import_iris.Iris.time_third_party_cartopy                                                      |
|          | 4.87±0.05ms          | 4.86±0.06ms         |    1    | import_iris.Iris.time_third_party_cf_units                                                     |
|          | 121±1μs              | 120±2μs             |    1    | import_iris.Iris.time_third_party_cftime                                                       |
|          | 2.83±0.02ms          | 2.80±0.03ms         |    0.99 | import_iris.Iris.time_third_party_matplotlib                                                   |
|          | 1.07±0ms             | 1.07±0.01ms         |    1    | import_iris.Iris.time_third_party_numpy                                                        |
|          | 173±2μs              | 172±2μs             |    0.99 | import_iris.Iris.time_third_party_scipy                                                        |
|          | 101±2μs              | 99.9±1μs            |    0.99 | import_iris.Iris.time_time                                                                     |
|          | 323±3μs              | 323±4μs             |    1    | import_iris.Iris.time_util                                                                     |
|          | 74.5±1μs             | 74.0±2μs            |    0.99 | iterate.IZip.time_izip                                                                         |
|          | 8.17±0.1ms           | 8.03±0.03ms         |    0.98 | load.LoadAndRealise.time_load((1280, 960, 5), False, 'FF')                                     |
|          | 8.94±0.1ms           | 8.84±0.09ms         |    0.99 | load.LoadAndRealise.time_load((1280, 960, 5), False, 'PP')                                     |
|          | 8.10±0.09ms          | 8.09±0.07ms         |    1    | load.LoadAndRealise.time_load((1280, 960, 5), True, 'FF')                                      |
|          | 8.83±0.07ms          | 8.90±0.2ms          |    1.01 | load.LoadAndRealise.time_load((1280, 960, 5), True, 'PP')                                      |
|          | 1.36±0.01s           | 1.36±0.01s          |    1    | load.LoadAndRealise.time_load((2, 2, 1000), False, 'FF')                                       |
|          | 1.52±0.01s           | 1.52±0.01s          |    1    | load.LoadAndRealise.time_load((2, 2, 1000), False, 'PP')                                       |
|          | 1.34±0.01s           | 1.36±0s             |    1.02 | load.LoadAndRealise.time_load((2, 2, 1000), True, 'FF')                                        |
|          | 1.51±0.01s           | 1.52±0.02s          |    1.01 | load.LoadAndRealise.time_load((2, 2, 1000), True, 'PP')                                        |
|          | 3.89±0.01ms          | 3.93±0.03ms         |    1.01 | load.LoadAndRealise.time_load((50, 50, 2), False, 'FF')                                        |
|          | 4.14±0.03ms          | 4.23±0.05ms         |    1.02 | load.LoadAndRealise.time_load((50, 50, 2), False, 'PP')                                        |
|          | 3.88±0.03ms          | 3.91±0.02ms         |    1.01 | load.LoadAndRealise.time_load((50, 50, 2), True, 'FF')                                         |
|          | 4.15±0.03ms          | 4.19±0.03ms         |    1.01 | load.LoadAndRealise.time_load((50, 50, 2), True, 'PP')                                         |
|          | 31.9±3ms             | 31.3±2ms            |    0.98 | load.LoadAndRealise.time_realise((1280, 960, 5), False, 'FF')                                  |
|          | 19.7±0.5ms           | 20.1±0.7ms          |    1.02 | load.LoadAndRealise.time_realise((1280, 960, 5), False, 'NetCDF')                              |
|          | 15.1±1ms             | 13.5±3ms            |    0.9  | load.LoadAndRealise.time_realise((1280, 960, 5), False, 'PP')                                  |
|          | 26.0±2ms             | 26.1±2ms            |    1    | load.LoadAndRealise.time_realise((1280, 960, 5), True, 'FF')                                   |
|          | 73.1±2ms             | 71.0±2ms            |    0.97 | load.LoadAndRealise.time_realise((1280, 960, 5), True, 'NetCDF')                               |
|          | 25.9±1ms             | 26.0±0.8ms          |    1    | load.LoadAndRealise.time_realise((1280, 960, 5), True, 'PP')                                   |
|          | 453±3ms              | 450±4ms             |    0.99 | load.LoadAndRealise.time_realise((2, 2, 1000), False, 'FF')                                    |
|          | 3.09±0.2ms           | 2.98±0.2ms          |    0.97 | load.LoadAndRealise.time_realise((2, 2, 1000), False, 'NetCDF')                                |
|          | 455±4ms              | 455±4ms             |    1    | load.LoadAndRealise.time_realise((2, 2, 1000), False, 'PP')                                    |
|          | 456±7ms              | 457±5ms             |    1    | load.LoadAndRealise.time_realise((2, 2, 1000), True, 'FF')                                     |
|          | 3.08±0.1ms           | 3.19±0.08ms         |    1.04 | load.LoadAndRealise.time_realise((2, 2, 1000), True, 'NetCDF')                                 |
|          | 470±5ms              | 466±3ms             |    0.99 | load.LoadAndRealise.time_realise((2, 2, 1000), True, 'PP')                                     |
|          | 1.54±0.05ms          | 1.67±0.1ms          |    1.09 | load.LoadAndRealise.time_realise((50, 50, 2), False, 'FF')                                     |
|          | 3.22±0.2ms           | 3.42±0.3ms          |    1.06 | load.LoadAndRealise.time_realise((50, 50, 2), False, 'NetCDF')                                 |
|          | 1.60±0.06ms          | 1.62±0.1ms          |    1.01 | load.LoadAndRealise.time_realise((50, 50, 2), False, 'PP')                                     |
|          | 1.58±0.08ms          | 1.60±0.1ms          |    1.02 | load.LoadAndRealise.time_realise((50, 50, 2), True, 'FF')                                      |
|          | 3.44±0.2ms           | 3.09±0.2ms          |    0.9  | load.LoadAndRealise.time_realise((50, 50, 2), True, 'NetCDF')                                  |
|          | 1.71±0.08ms          | 1.64±0.07ms         |    0.96 | load.LoadAndRealise.time_realise((50, 50, 2), True, 'PP')                                      |
|          | 8.20±0.07ms          | 8.16±0.2ms          |    1    | load.STASHConstraint.time_stash_constraint((1280, 960, 5), 'FF')                               |
|          | 8.97±0.06ms          | 9.02±0.2ms          |    1.01 | load.STASHConstraint.time_stash_constraint((1280, 960, 5), 'PP')                               |
|          | 1.36±0.01s           | 1.36±0.01s          |    1    | load.STASHConstraint.time_stash_constraint((2, 2, 1000), 'FF')                                 |
|          | 1.54±0.02s           | 1.53±0.01s          |    1    | load.STASHConstraint.time_stash_constraint((2, 2, 1000), 'PP')                                 |
|          | 3.96±0.03ms          | 3.96±0.02ms         |    1    | load.STASHConstraint.time_stash_constraint((2, 2, 2), 'FF')                                    |
|          | 4.25±0.02ms          | 4.25±0.03ms         |    1    | load.STASHConstraint.time_stash_constraint((2, 2, 2), 'PP')                                    |
|          | 8.01±0.04ms          | 8.13±0.04ms         |    1.01 | load.StructuredFF.time_structured_load((1280, 960, 5), False)                                  |
|          | 4.74±0.05ms          | 4.83±0.08ms         |    1.02 | load.StructuredFF.time_structured_load((1280, 960, 5), True)                                   |
|          | 1.35±0.01s           | 1.37±0.02s          |    1.01 | load.StructuredFF.time_structured_load((2, 2, 1000), False)                                    |
|          | 373±6ms              | 369±2ms             |    0.99 | load.StructuredFF.time_structured_load((2, 2, 1000), True)                                     |
|          | 3.96±0.05ms          | 3.94±0.07ms         |    0.99 | load.StructuredFF.time_structured_load((2, 2, 2), False)                                       |
|          | 3.56±0.04ms          | 3.56±0.02ms         |    1    | load.StructuredFF.time_structured_load((2, 2, 2), True)                                        |
|          | 151±4ms              | 151±2ms             |    1    | load.TimeConstraint.time_time_constraint(20, 'FF')                                             |
|          | 165±0.9ms            | 165±1ms             |    1    | load.TimeConstraint.time_time_constraint(20, 'PP')                                             |
|          | 29.8±0.2ms           | 29.5±0.1ms          |    0.99 | load.TimeConstraint.time_time_constraint(3, 'FF')                                              |
|          | 31.8±0.7ms           | 32.4±0.4ms          |    1.02 | load.TimeConstraint.time_time_constraint(3, 'PP')                                              |
|          | 18.6±0.5ms           | 18.0±0.3ms          |    0.97 | load.ugrid.BasicLoading.time_load_file(1)                                                      |
|          | 42.8±1ms             | 42.2±1ms            |    0.99 | load.ugrid.BasicLoading.time_load_file(200000)                                                 |
|          | 15.4±0.5ms           | 14.5±0.2ms          |    0.94 | load.ugrid.BasicLoading.time_load_mesh(1)                                                      |
|          | 23.3±0.3ms           | 23.4±0.6ms          |    1    | load.ugrid.BasicLoading.time_load_mesh(200000)                                                 |
|          | 18.4±0.4ms           | 18.4±0.4ms          |    1    | load.ugrid.BasicLoadingTime.time_load_file(1)                                                  |
|          | 22.1±0.5ms           | 21.6±0.7ms          |    0.98 | load.ugrid.BasicLoadingTime.time_load_file(200000)                                             |
|          | 14.6±0.2ms           | 14.8±0.3ms          |    1.02 | load.ugrid.BasicLoadingTime.time_load_mesh(1)                                                  |
|          | 18.2±0.4ms           | 17.8±0.4ms          |    0.98 | load.ugrid.BasicLoadingTime.time_load_mesh(200000)                                             |
|          | 19.0±0.3ms           | 19.4±0.4ms          |    1.02 | load.ugrid.Callback.time_load_file_callback(1)                                                 |
|          | 51.5±0.9ms           | 51.4±0.7ms          |    1    | load.ugrid.Callback.time_load_file_callback(200000)                                            |
|          | 19.6±0.5ms           | 19.3±0.4ms          |    0.98 | load.ugrid.CallbackTime.time_load_file_callback(1)                                             |
|          | 23.9±0.5ms           | 22.9±0.3ms          |    0.96 | load.ugrid.CallbackTime.time_load_file_callback(200000)                                        |
|          | 3.03±0.2ms           | 2.97±0.2ms          |    0.98 | load.ugrid.DataRealisation.time_realise_data(10000)                                            |
|          | 5.14±0.7ms           | 5.49±0.7ms          |    1.07 | load.ugrid.DataRealisation.time_realise_data(200000)                                           |
|          | 42.1±2ms             | 41.3±2ms            |    0.98 | load.ugrid.DataRealisationTime.time_realise_data(10000)                                        |
|          | 815±5ms              | 817±6ms             |    1    | load.ugrid.DataRealisationTime.time_realise_data(200000)                                       |
|          | 123±2ms              | 122±3ms             |    0.99 | merge_concat.Concatenate.time_concatenate                                                      |
|          | 24.1                 | 24.1                |    1    | merge_concat.Concatenate.track_mem_merge                                                       |
|          | 50.1±1ms             | 51.1±2ms            |    1.02 | merge_concat.Merge.time_merge                                                                  |
|          | 11.0                 | 11.0                |    1    | merge_concat.Merge.track_mem_merge                                                             |
|          | 391±6ns              | 407±8ns             |    1.04 | mesh.utils.regions_combine.CombineRegionsComputeRealData.time_compute_data(50)                 |
|          | 261±3ms              | 266±6ms             |    1.02 | mesh.utils.regions_combine.CombineRegionsComputeRealData.time_compute_data(500)                |
|          | 0.6                  | 0.6                 |    1    | mesh.utils.regions_combine.CombineRegionsComputeRealData.track_addedmem_compute_data(50)       |
|          | 57.3                 | 57.3                |    1    | mesh.utils.regions_combine.CombineRegionsComputeRealData.track_addedmem_compute_data(500)      |
|          | 14.7±0.2ms           | 14.6±0.2ms          |    1    | mesh.utils.regions_combine.CombineRegionsCreateCube.time_create_combined_cube(50)              |
|          | 16.4±0.3ms           | 16.4±0.3ms          |    1    | mesh.utils.regions_combine.CombineRegionsCreateCube.time_create_combined_cube(500)             |
|          | 0.5                  | 0.5                 |    1    | mesh.utils.regions_combine.CombineRegionsCreateCube.track_addedmem_create_combined_cube(50)    |
|          | 11.8                 | 11.8                |    1    | mesh.utils.regions_combine.CombineRegionsCreateCube.track_addedmem_create_combined_cube(500)   |
|          | 109±1ms              | 110±2ms             |    1    | mesh.utils.regions_combine.CombineRegionsFileStreamedCalc.time_stream_file2file(50)            |
|          | 721±5ms              | 717±7ms             |    0.99 | mesh.utils.regions_combine.CombineRegionsFileStreamedCalc.time_stream_file2file(500)           |
|          | 1.4                  | 1.4                 |    1    | mesh.utils.regions_combine.CombineRegionsFileStreamedCalc.track_addedmem_stream_file2file(50)  |
|          | 92.0                 | 92.0                |    1    | mesh.utils.regions_combine.CombineRegionsFileStreamedCalc.track_addedmem_stream_file2file(500) |
|          | 68.4±2ms             | 69.8±2ms            |    1.02 | mesh.utils.regions_combine.CombineRegionsSaveData.time_save(50)                                |
|          | 677±5ms              | 671±5ms             |    0.99 | mesh.utils.regions_combine.CombineRegionsSaveData.time_save(500)                               |
|          | 1.3                  | 1.4                 |    1.08 | mesh.utils.regions_combine.CombineRegionsSaveData.track_addedmem_save(50)                      |
|          | 92.0                 | 92.0                |    1    | mesh.utils.regions_combine.CombineRegionsSaveData.track_addedmem_save(500)                     |
|          | 2.1752849999999997   | 2.1752849999999997  |    1    | mesh.utils.regions_combine.CombineRegionsSaveData.track_filesize_saved(50)                     |
|          | 216.01528499999998   | 216.01528499999998  |    1    | mesh.utils.regions_combine.CombineRegionsSaveData.track_filesize_saved(500)                    |
|          | 6.60±0.1ms           | 6.73±0.2ms          |    1.02 | plot.AuxSort.time_aux_sort                                                                     |
|          | 79.8±3ms             | 77.3±5ms            |    0.97 | regridding.CurvilinearRegridding.time_regrid_pic                                               |
|          | 144.9                | 144.9               |    1    | regridding.CurvilinearRegridding.track_mem_regrid_pic                                          |
|          | 99.6±0.8ms           | 99.4±1ms            |    1    | regridding.HorizontalChunkedRegridding.time_regrid_area_w                                      |
|          | 52.2±4ms             | 51.5±3ms            |    0.99 | regridding.HorizontalChunkedRegridding.time_regrid_area_w_new_grid                             |
|          | 111.6                | 111.6               |    1    | regridding.HorizontalChunkedRegridding.track_mem_regrid_area_w                                 |
|          | 150.6                | 150.6               |    1    | regridding.HorizontalChunkedRegridding.track_mem_regrid_area_w_new_grid                        |
|          | 4.17±0.05ms          | 4.16±0.1ms          |    1    | save.NetcdfSave.time_netcdf_save_cube(50, False)                                               |
|          | 74.4±1ms             | 74.7±2ms            |    1    | save.NetcdfSave.time_netcdf_save_cube(50, True)                                                |
|          | 53.7±2ms             | 54.0±2ms            |    1.01 | save.NetcdfSave.time_netcdf_save_cube(600, False)                                              |
|          | 573±8ms              | 578±6ms             |    1.01 | save.NetcdfSave.time_netcdf_save_cube(600, True)                                               |
|          | 89.6±1ns             | 90.5±1ns            |    1.01 | save.NetcdfSave.time_netcdf_save_mesh(50, False)                                               |
|          | 57.8±0.6ms           | 57.3±1ms            |    0.99 | save.NetcdfSave.time_netcdf_save_mesh(50, True)                                                |
|          | 91.1±1ns             | 92.5±3ns            |    1.02 | save.NetcdfSave.time_netcdf_save_mesh(600, False)                                              |
|          | 508±7ms              | 505±5ms             |    0.99 | save.NetcdfSave.time_netcdf_save_mesh(600, True)                                               |
|          | 0.3                  | 0.3                 |    1    | save.NetcdfSave.track_addedmem_netcdf_save(50, False)                                          |
|          | 1.9                  | 1.9                 |    1    | save.NetcdfSave.track_addedmem_netcdf_save(50, True)                                           |
|          | 0.3                  | 0.3                 |    1    | save.NetcdfSave.track_addedmem_netcdf_save(600, False)                                         |
|          | 231.1                | 231.1               |    1    | save.NetcdfSave.track_addedmem_netcdf_save(600, True)                                          |
|          | 43.8±2ms             | 42.5±1ms            |    0.97 | stats.PearsonR.time_lazy                                                                       |
|          | 19.1±0.2ms           | 19.1±0.2ms          |    1    | stats.PearsonR.time_real                                                                       |
|          | 21.5                 | 19.6                |    0.91 | stats.PearsonR.track_lazy                                                                      |
|          | 17.8                 | 17.8                |    1    | stats.PearsonR.track_real                                                                      |
|          | 25.7±0.8ms           | 25.0±1ms            |    0.97 | trajectory.TrajectoryInterpolation.time_trajectory_linear                                      |
|          | 62.2±0.7ms           | 61.8±1ms            |    0.99 | trajectory.TrajectoryInterpolation.time_trajectory_nearest                                     |
|          | 32.2                 | 32.2                |    1    | trajectory.TrajectoryInterpolation.track_trajectory_linear                                     |
|          | 21.6                 | 21.6                |    1    | trajectory.TrajectoryInterpolation.track_trajectory_nearest                                    |

Generated by GHA run 10111300180

@stephenworsley stephenworsley marked this pull request as ready for review July 26, 2024 13:59
@stephenworsley stephenworsley marked this pull request as draft July 26, 2024 14:01
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⏱️ Performance Benchmark Report: fd30e4d

Performance shifts
| Change   | Before [4585059b]    | After [fd30e4dc]    |   Ratio | Benchmark (Parameter)                                          |
|----------|----------------------|---------------------|---------|----------------------------------------------------------------|
| -        | 30.7±0.4ms           | 25.1±0.3ms          |    0.82 | load.LoadAndRealise.time_load((1280, 960, 5), False, 'NetCDF') |
| -        | 27.8±0.2ms           | 22.1±0.3ms          |    0.8  | load.LoadAndRealise.time_load((1280, 960, 5), True, 'NetCDF')  |
| -        | 27.4±0.4ms           | 21.8±0.3ms          |    0.8  | load.LoadAndRealise.time_load((2, 2, 1000), False, 'NetCDF')   |
| -        | 27.6±0.5ms           | 22.0±0.3ms          |    0.8  | load.LoadAndRealise.time_load((2, 2, 1000), True, 'NetCDF')    |
| -        | 26.2±0.4ms           | 20.9±0.2ms          |    0.8  | load.LoadAndRealise.time_load((50, 50, 2), False, 'NetCDF')    |
| -        | 26.5±0.2ms           | 20.9±0.2ms          |    0.79 | load.LoadAndRealise.time_load((50, 50, 2), True, 'NetCDF')     |
| -        | 510±6ms              | 367±1ms             |    0.72 | load.ManyVars.time_many_var_load                               |
| -        | 30.0±0.2ms           | 24.1±0.3ms          |    0.8  | load.TimeConstraint.time_time_constraint(20, 'NetCDF')         |
| -        | 29.6±0.7ms           | 24.1±0.3ms          |    0.81 | load.TimeConstraint.time_time_constraint(3, 'NetCDF')          |
| Change   |   Before [4585059b]  |   After [fd30e4dc]  |   Ratio | Benchmark (Parameter)                                |
|----------|----------------------|---------------------|---------|------------------------------------------------------|
| +        |                  1.6 |                   2 |    1.25 | save.NetcdfSave.track_addedmem_netcdf_save(50, True) |
Full benchmark results

Benchmarks that have improved:

| Change   | Before [4585059b]    | After [fd30e4dc]    |   Ratio | Benchmark (Parameter)                                          |
|----------|----------------------|---------------------|---------|----------------------------------------------------------------|
| -        | 30.7±0.4ms           | 25.1±0.3ms          |    0.82 | load.LoadAndRealise.time_load((1280, 960, 5), False, 'NetCDF') |
| -        | 27.8±0.2ms           | 22.1±0.3ms          |    0.8  | load.LoadAndRealise.time_load((1280, 960, 5), True, 'NetCDF')  |
| -        | 27.4±0.4ms           | 21.8±0.3ms          |    0.8  | load.LoadAndRealise.time_load((2, 2, 1000), False, 'NetCDF')   |
| -        | 27.6±0.5ms           | 22.0±0.3ms          |    0.8  | load.LoadAndRealise.time_load((2, 2, 1000), True, 'NetCDF')    |
| -        | 26.2±0.4ms           | 20.9±0.2ms          |    0.8  | load.LoadAndRealise.time_load((50, 50, 2), False, 'NetCDF')    |
| -        | 26.5±0.2ms           | 20.9±0.2ms          |    0.79 | load.LoadAndRealise.time_load((50, 50, 2), True, 'NetCDF')     |
| -        | 510±6ms              | 367±1ms             |    0.72 | load.ManyVars.time_many_var_load                               |
| -        | 30.0±0.2ms           | 24.1±0.3ms          |    0.8  | load.TimeConstraint.time_time_constraint(20, 'NetCDF')         |
| -        | 29.6±0.7ms           | 24.1±0.3ms          |    0.81 | load.TimeConstraint.time_time_constraint(3, 'NetCDF')          |

Benchmarks that have stayed the same:

| Change   | Before [4585059b]    | After [fd30e4dc]    | Ratio   | Benchmark (Parameter)                                                                          |
|----------|----------------------|---------------------|---------|------------------------------------------------------------------------------------------------|
|          | 54.8±0.9ms           | 54.9±0.9ms          | 1.00    | aggregate_collapse.Aggregation.time_aggregated_by_COUNT(False)                                 |
|          | 55.4±0.8ms           | 55.6±0.6ms          | 1.00    | aggregate_collapse.Aggregation.time_aggregated_by_COUNT(True)                                  |
|          | 195±3ms              | 194±2ms             | 1.00    | aggregate_collapse.Aggregation.time_aggregated_by_FAST_PERCENTILE(False)                       |
|          | 197±3ms              | 197±2ms             | 1.00    | aggregate_collapse.Aggregation.time_aggregated_by_FAST_PERCENTILE(True)                        |
|          | 37.3±0.4ms           | 37.9±0.3ms          | 1.01    | aggregate_collapse.Aggregation.time_aggregated_by_GMEAN(False)                                 |
|          | 38.8±0.4ms           | 38.5±0.4ms          | 0.99    | aggregate_collapse.Aggregation.time_aggregated_by_GMEAN(True)                                  |
|          | 37.7±0.6ms           | 37.8±0.5ms          | 1.00    | aggregate_collapse.Aggregation.time_aggregated_by_HMEAN(False)                                 |
|          | 38.6±0.3ms           | 38.9±0.4ms          | 1.01    | aggregate_collapse.Aggregation.time_aggregated_by_HMEAN(True)                                  |
|          | 47.4±0.7ms           | 47.6±1ms            | 1.00    | aggregate_collapse.Aggregation.time_aggregated_by_MAX(False)                                   |
|          | 48.1±0.7ms           | 48.0±0.5ms          | 1.00    | aggregate_collapse.Aggregation.time_aggregated_by_MAX(True)                                    |
|          | 122±0.9ms            | 123±1ms             | 1.01    | aggregate_collapse.Aggregation.time_aggregated_by_MAX_RUN(False)                               |
|          | 122±1ms              | 121±0.9ms           | 0.99    | aggregate_collapse.Aggregation.time_aggregated_by_MAX_RUN(True)                                |
|          | 52.4±0.5ms           | 52.1±0.5ms          | 1.00    | aggregate_collapse.Aggregation.time_aggregated_by_MEAN(False)                                  |
|          | 52.9±0.9ms           | 53.0±0.2ms          | 1.00    | aggregate_collapse.Aggregation.time_aggregated_by_MEAN(True)                                   |
|          | 37.3±0.6ms           | 37.6±0.6ms          | 1.01    | aggregate_collapse.Aggregation.time_aggregated_by_MEDIAN(False)                                |
|          | 38.6±0.4ms           | 38.1±0.5ms          | 0.99    | aggregate_collapse.Aggregation.time_aggregated_by_MEDIAN(True)                                 |
|          | 47.3±0.5ms           | 47.6±0.6ms          | 1.01    | aggregate_collapse.Aggregation.time_aggregated_by_MIN(False)                                   |
|          | 48.2±0.8ms           | 48.2±0.8ms          | 1.00    | aggregate_collapse.Aggregation.time_aggregated_by_MIN(True)                                    |
|          | 1.32±0s              | 1.31±0.01s          | 1.00    | aggregate_collapse.Aggregation.time_aggregated_by_PEAK(False)                                  |
|          | 1.32±0.02s           | 1.31±0.02s          | 0.99    | aggregate_collapse.Aggregation.time_aggregated_by_PEAK(True)                                   |
|          | 685±8ms              | 686±10ms            | 1.00    | aggregate_collapse.Aggregation.time_aggregated_by_PERCENTILE(False)                            |
|          | 691±10ms             | 689±10ms            | 1.00    | aggregate_collapse.Aggregation.time_aggregated_by_PERCENTILE(True)                             |
|          | 36.1±0.4ms           | 36.0±0.3ms          | 1.00    | aggregate_collapse.Aggregation.time_aggregated_by_PROPORTION(False)                            |
|          | 36.8±0.4ms           | 37.2±0.4ms          | 1.01    | aggregate_collapse.Aggregation.time_aggregated_by_PROPORTION(True)                             |
|          | 63.4±0.8ms           | 63.7±0.8ms          | 1.01    | aggregate_collapse.Aggregation.time_aggregated_by_RMS(False)                                   |
|          | 63.7±0.4ms           | 63.6±0.7ms          | 1.00    | aggregate_collapse.Aggregation.time_aggregated_by_RMS(True)                                    |
|          | 66.8±0.9ms           | 67.5±0.5ms          | 1.01    | aggregate_collapse.Aggregation.time_aggregated_by_STD_DEV(False)                               |
|          | 67.7±0.9ms           | 68.5±1ms            | 1.01    | aggregate_collapse.Aggregation.time_aggregated_by_STD_DEV(True)                                |
|          | 62.8±0.6ms           | 62.5±0.4ms          | 0.99    | aggregate_collapse.Aggregation.time_aggregated_by_VARIANCE(False)                              |
|          | 63.0±0.9ms           | 63.8±0.7ms          | 1.01    | aggregate_collapse.Aggregation.time_aggregated_by_VARIANCE(True)                               |
|          | 20.6±0.3ms           | 20.4±0.3ms          | 0.99    | aggregate_collapse.Aggregation.time_collapsed_by_COUNT(False)                                  |
|          | 24.2±0.6ms           | 24.2±0.4ms          | 1.00    | aggregate_collapse.Aggregation.time_collapsed_by_COUNT(True)                                   |
|          | 137±2ms              | 137±2ms             | 1.00    | aggregate_collapse.Aggregation.time_collapsed_by_FAST_PERCENTILE(False)                        |
|          | 149±1ms              | 150±1ms             | 1.00    | aggregate_collapse.Aggregation.time_collapsed_by_FAST_PERCENTILE(True)                         |
|          | 18.8±0.2ms           | 18.8±0.3ms          | 1.00    | aggregate_collapse.Aggregation.time_collapsed_by_GMEAN(False)                                  |
|          | 22.6±0.3ms           | 22.2±0.3ms          | 0.98    | aggregate_collapse.Aggregation.time_collapsed_by_GMEAN(True)                                   |
|          | 18.8±0.2ms           | 18.8±0.4ms          | 1.00    | aggregate_collapse.Aggregation.time_collapsed_by_HMEAN(False)                                  |
|          | 22.4±0.3ms           | 22.7±0.4ms          | 1.01    | aggregate_collapse.Aggregation.time_collapsed_by_HMEAN(True)                                   |
|          | 19.3±0.2ms           | 19.3±0.3ms          | 1.00    | aggregate_collapse.Aggregation.time_collapsed_by_MAX(False)                                    |
|          | 23.1±0.5ms           | 23.2±0.3ms          | 1.00    | aggregate_collapse.Aggregation.time_collapsed_by_MAX(True)                                     |
|          | 35.4±1ms             | 35.6±0.9ms          | 1.01    | aggregate_collapse.Aggregation.time_collapsed_by_MAX_RUN(False)                                |
|          | 39.3±0.5ms           | 39.0±1ms            | 0.99    | aggregate_collapse.Aggregation.time_collapsed_by_MAX_RUN(True)                                 |
|          | 19.7±0.4ms           | 20.0±0.4ms          | 1.02    | aggregate_collapse.Aggregation.time_collapsed_by_MEAN(False)                                   |
|          | 23.5±0.3ms           | 23.4±0.3ms          | 1.00    | aggregate_collapse.Aggregation.time_collapsed_by_MEAN(True)                                    |
|          | 19.5±0.2ms           | 19.4±0.3ms          | 0.99    | aggregate_collapse.Aggregation.time_collapsed_by_MEDIAN(False)                                 |
|          | 23.1±0.3ms           | 23.2±0.6ms          | 1.01    | aggregate_collapse.Aggregation.time_collapsed_by_MEDIAN(True)                                  |
|          | 19.7±0.4ms           | 19.4±0.3ms          | 0.99    | aggregate_collapse.Aggregation.time_collapsed_by_MIN(False)                                    |
|          | 23.3±0.3ms           | 23.1±0.2ms          | 0.99    | aggregate_collapse.Aggregation.time_collapsed_by_MIN(True)                                     |
|          | 549±4ms              | 549±4ms             | 1.00    | aggregate_collapse.Aggregation.time_collapsed_by_PEAK(False)                                   |
|          | 557±9ms              | 556±3ms             | 1.00    | aggregate_collapse.Aggregation.time_collapsed_by_PEAK(True)                                    |
|          | 156±3ms              | 156±2ms             | 1.00    | aggregate_collapse.Aggregation.time_collapsed_by_PERCENTILE(False)                             |
|          | 171±1ms              | 170±1ms             | 1.00    | aggregate_collapse.Aggregation.time_collapsed_by_PERCENTILE(True)                              |
|          | 18.6±0.3ms           | 18.5±0.3ms          | 0.99    | aggregate_collapse.Aggregation.time_collapsed_by_PROPORTION(False)                             |
|          | 22.4±0.2ms           | 22.3±0.4ms          | 0.99    | aggregate_collapse.Aggregation.time_collapsed_by_PROPORTION(True)                              |
|          | 21.8±0.5ms           | 21.9±0.4ms          | 1.01    | aggregate_collapse.Aggregation.time_collapsed_by_RMS(False)                                    |
|          | 25.3±0.3ms           | 25.7±0.5ms          | 1.01    | aggregate_collapse.Aggregation.time_collapsed_by_RMS(True)                                     |
|          | 21.9±0.3ms           | 21.7±0.2ms          | 0.99    | aggregate_collapse.Aggregation.time_collapsed_by_STD_DEV(False)                                |
|          | 25.9±0.9ms           | 25.6±0.6ms          | 0.99    | aggregate_collapse.Aggregation.time_collapsed_by_STD_DEV(True)                                 |
|          | 21.3±0.2ms           | 21.5±0.4ms          | 1.01    | aggregate_collapse.Aggregation.time_collapsed_by_VARIANCE(False)                               |
|          | 25.2±0.2ms           | 25.2±0.3ms          | 1.00    | aggregate_collapse.Aggregation.time_collapsed_by_VARIANCE(True)                                |
|          | 84.2±0.5ms           | 84.6±0.8ms          | 1.01    | aggregate_collapse.WeightedAggregation.time_w_aggregated_by_MEAN(False)                        |
|          | 85.0±0.7ms           | 85.2±0.8ms          | 1.00    | aggregate_collapse.WeightedAggregation.time_w_aggregated_by_MEAN(True)                         |
|          | 95.8±0.7ms           | 96.6±1ms            | 1.01    | aggregate_collapse.WeightedAggregation.time_w_aggregated_by_RMS(False)                         |
|          | 97.0±0.8ms           | 97.4±1ms            | 1.00    | aggregate_collapse.WeightedAggregation.time_w_aggregated_by_RMS(True)                          |
|          | 59.0±0.5ms           | 59.1±1ms            | 1.00    | aggregate_collapse.WeightedAggregation.time_w_aggregated_by_SUM(False)                         |
|          | 60.1±0.9ms           | 60.3±0.6ms          | 1.00    | aggregate_collapse.WeightedAggregation.time_w_aggregated_by_SUM(True)                          |
|          | 30.4±0.4ms           | 30.1±0.6ms          | 0.99    | aggregate_collapse.WeightedAggregation.time_w_collapsed_by_MEAN(False)                         |
|          | 34.0±0.6ms           | 34.1±0.6ms          | 1.00    | aggregate_collapse.WeightedAggregation.time_w_collapsed_by_MEAN(True)                          |
|          | 31.8±0.5ms           | 32.3±0.5ms          | 1.02    | aggregate_collapse.WeightedAggregation.time_w_collapsed_by_RMS(False)                          |
|          | 35.5±0.3ms           | 35.6±0.6ms          | 1.00    | aggregate_collapse.WeightedAggregation.time_w_collapsed_by_RMS(True)                           |
|          | 26.8±0.3ms           | 26.9±0.5ms          | 1.00    | aggregate_collapse.WeightedAggregation.time_w_collapsed_by_SUM(False)                          |
|          | 30.3±0.5ms           | 30.4±0.4ms          | 1.00    | aggregate_collapse.WeightedAggregation.time_w_collapsed_by_SUM(True)                           |
|          | 327±2ms              | 326±2ms             | 1.00    | aggregate_collapse.WeightedAggregation.time_w_collapsed_by_WPERCENTILE(False)                  |
|          | 346±4ms              | 347±3ms             | 1.00    | aggregate_collapse.WeightedAggregation.time_w_collapsed_by_WPERCENTILE(True)                   |
|          | 1.11±0.01ms          | 1.11±0.01ms         | 1.00    | cube.CubeCreation.time_create(False, 'construct')                                              |
|          | 406±7μs              | 399±6μs             | 0.98    | cube.CubeCreation.time_create(False, 'instantiate')                                            |
|          | 953±10μs             | 952±10μs            | 1.00    | cube.CubeCreation.time_create(True, 'construct')                                               |
|          | 570±9μs              | 592±10μs            | 1.04    | cube.CubeCreation.time_create(True, 'instantiate')                                             |
|          | 230±3ms              | 229±4ms             | 1.00    | cube.CubeEquality.time_equality(False, False, 'all_equal')                                     |
|          | 115±2ms              | 114±2ms             | 0.99    | cube.CubeEquality.time_equality(False, False, 'coord_inequality')                              |
|          | 239±4ms              | 240±2ms             | 1.00    | cube.CubeEquality.time_equality(False, False, 'data_inequality')                               |
|          | 16.8±0.2μs           | 16.4±0.2μs          | 0.97    | cube.CubeEquality.time_equality(False, False, 'metadata_inequality')                           |
|          | 319±3ms              | 318±4ms             | 1.00    | cube.CubeEquality.time_equality(False, True, 'all_equal')                                      |
|          | 207±3ms              | 205±3ms             | 0.99    | cube.CubeEquality.time_equality(False, True, 'coord_inequality')                               |
|          | 328±4ms              | 326±4ms             | 1.00    | cube.CubeEquality.time_equality(False, True, 'data_inequality')                                |
|          | 17.1±0.1μs           | 16.7±0.2μs          | 0.97    | cube.CubeEquality.time_equality(False, True, 'metadata_inequality')                            |
|          | 227±3ms              | 228±2ms             | 1.00    | cube.CubeEquality.time_equality(True, False, 'all_equal')                                      |
|          | 115±1ms              | 115±0.8ms           | 1.00    | cube.CubeEquality.time_equality(True, False, 'coord_inequality')                               |
|          | 239±2ms              | 242±2ms             | 1.01    | cube.CubeEquality.time_equality(True, False, 'data_inequality')                                |
|          | 53.9±0.6μs           | 52.6±0.4μs          | 0.98    | cube.CubeEquality.time_equality(True, False, 'metadata_inequality')                            |
|          | 318±3ms              | 315±6ms             | 0.99    | cube.CubeEquality.time_equality(True, True, 'all_equal')                                       |
|          | 204±2ms              | 207±2ms             | 1.01    | cube.CubeEquality.time_equality(True, True, 'coord_inequality')                                |
|          | 329±2ms              | 324±4ms             | 0.99    | cube.CubeEquality.time_equality(True, True, 'data_inequality')                                 |
|          | 54.8±0.6μs           | 54.3±0.6μs          | 0.99    | cube.CubeEquality.time_equality(True, True, 'metadata_inequality')                             |
|          | 663±4μs              | 665±10μs            | 1.00    | import_iris.Iris.time__concatenate                                                             |
|          | 187±3μs              | 185±2μs             | 0.99    | import_iris.Iris.time__constraints                                                             |
|          | 112±0.7μs            | 111±0.9μs           | 1.00    | import_iris.Iris.time__data_manager                                                            |
|          | 94.2±0.7μs           | 95.0±0.9μs          | 1.01    | import_iris.Iris.time__deprecation                                                             |
|          | 138±2μs              | 140±1μs             | 1.01    | import_iris.Iris.time__lazy_data                                                               |
|          | 906±4μs              | 901±9μs             | 0.99    | import_iris.Iris.time__merge                                                                   |
|          | 78.5±0.6μs           | 78.0±0.5μs          | 0.99    | import_iris.Iris.time__representation                                                          |
|          | 488±4μs              | 499±10μs            | 1.02    | import_iris.Iris.time_analysis                                                                 |
|          | 140±1μs              | 143±1μs             | 1.02    | import_iris.Iris.time_analysis__area_weighted                                                  |
|          | 111±4μs              | 110±2μs             | 0.99    | import_iris.Iris.time_analysis__grid_angles                                                    |
|          | 241±2μs              | 244±2μs             | 1.01    | import_iris.Iris.time_analysis__interpolation                                                  |
|          | 189±3μs              | 192±4μs             | 1.01    | import_iris.Iris.time_analysis__regrid                                                         |
|          | 113±0.7μs            | 113±2μs             | 1.01    | import_iris.Iris.time_analysis__scipy_interpolate                                              |
|          | 142±2μs              | 141±2μs             | 0.99    | import_iris.Iris.time_analysis_calculus                                                        |
|          | 331±6μs              | 326±2μs             | 0.98    | import_iris.Iris.time_analysis_cartography                                                     |
|          | 94.6±0.5μs           | 95.4±0.6μs          | 1.01    | import_iris.Iris.time_analysis_geomerty                                                        |
|          | 219±3μs              | 219±2μs             | 1.00    | import_iris.Iris.time_analysis_maths                                                           |
|          | 98.3±1μs             | 98.7±3μs            | 1.00    | import_iris.Iris.time_analysis_stats                                                           |
|          | 176±4μs              | 178±3μs             | 1.01    | import_iris.Iris.time_analysis_trajectory                                                      |
|          | 309±3μs              | 316±5μs             | 1.02    | import_iris.Iris.time_aux_factory                                                              |
|          | 84.6±0.5μs           | 85.6±0.6μs          | 1.01    | import_iris.Iris.time_common                                                                   |
|          | 162±1μs              | 164±1μs             | 1.01    | import_iris.Iris.time_common_lenient                                                           |
|          | 1.33±0.01ms          | 1.35±0.02ms         | 1.02    | import_iris.Iris.time_common_metadata                                                          |
|          | 133±3μs              | 133±2μs             | 1.00    | import_iris.Iris.time_common_mixin                                                             |
|          | 1.19±0.02ms          | 1.19±0ms            | 1.00    | import_iris.Iris.time_common_resolve                                                           |
|          | 199±2μs              | 199±2μs             | 1.00    | import_iris.Iris.time_config                                                                   |
|          | 116±1μs              | 117±0.6μs           | 1.01    | import_iris.Iris.time_coord_categorisation                                                     |
|          | 368±3μs              | 376±6μs             | 1.02    | import_iris.Iris.time_coord_systems                                                            |
|          | 751±9μs              | 757±6μs             | 1.01    | import_iris.Iris.time_coords                                                                   |
|          | 684±6μs              | 687±9μs             | 1.00    | import_iris.Iris.time_cube                                                                     |
|          | 225±2μs              | 232±4μs             | 1.03    | import_iris.Iris.time_exceptions                                                               |
|          | 78.3±0.5μs           | 78.1±0.4μs          | 1.00    | import_iris.Iris.time_experimental                                                             |
|          | 187±3μs              | 186±2μs             | 1.00    | import_iris.Iris.time_fileformats                                                              |
|          | 253±2μs              | 255±3μs             | 1.01    | import_iris.Iris.time_fileformats__ff                                                          |
|          | 2.70±0.02ms          | 2.69±0.03ms         | 0.99    | import_iris.Iris.time_fileformats__ff_cross_references                                         |
|          | 80.5±0.5μs           | 80.8±2μs            | 1.00    | import_iris.Iris.time_fileformats__pp_lbproc_pairs                                             |
|          | 116±1μs              | 115±1μs             | 0.99    | import_iris.Iris.time_fileformats_abf                                                          |
|          | 404±8μs              | 416±10μs            | 1.03    | import_iris.Iris.time_fileformats_cf                                                           |
|          | 5.49±0.2ms           | 5.54±0.1ms          | 1.01    | import_iris.Iris.time_fileformats_dot                                                          |
|          | 76.0±1μs             | 76.1±0.7μs          | 1.00    | import_iris.Iris.time_fileformats_name                                                         |
|          | 257±3μs              | 259±3μs             | 1.01    | import_iris.Iris.time_fileformats_name_loaders                                                 |
|          | 120±1μs              | 120±0.9μs           | 1.00    | import_iris.Iris.time_fileformats_netcdf                                                       |
|          | 125±1μs              | 125±1μs             | 0.99    | import_iris.Iris.time_fileformats_nimrod                                                       |
|          | 214±2μs              | 218±3μs             | 1.02    | import_iris.Iris.time_fileformats_nimrod_load_rules                                            |
|          | 788±5μs              | 790±8μs             | 1.00    | import_iris.Iris.time_fileformats_pp                                                           |
|          | 182±2μs              | 182±4μs             | 1.00    | import_iris.Iris.time_fileformats_pp_load_rules                                                |
|          | 135±1μs              | 136±1μs             | 1.01    | import_iris.Iris.time_fileformats_pp_save_rules                                                |
|          | 517±3μs              | 519±8μs             | 1.00    | import_iris.Iris.time_fileformats_rules                                                        |
|          | 221±2μs              | 222±2μs             | 1.00    | import_iris.Iris.time_fileformats_structured_array_identification                              |
|          | 85.2±0.7μs           | 84.2±0.6μs          | 0.99    | import_iris.Iris.time_fileformats_um                                                           |
|          | 163±1μs              | 164±2μs             | 1.01    | import_iris.Iris.time_fileformats_um__fast_load                                                |
|          | 139±1μs              | 140±0.7μs           | 1.00    | import_iris.Iris.time_fileformats_um__fast_load_structured_fields                              |
|          | 77.2±0.5μs           | 77.1±0.3μs          | 1.00    | import_iris.Iris.time_fileformats_um__ff_replacement                                           |
|          | 83.6±0.5μs           | 83.3±0.5μs          | 1.00    | import_iris.Iris.time_fileformats_um__optimal_array_structuring                                |
|          | 979±7μs              | 984±6μs             | 1.01    | import_iris.Iris.time_fileformats_um_cf_map                                                    |
|          | 138±1μs              | 139±2μs             | 1.01    | import_iris.Iris.time_io                                                                       |
|          | 175±3μs              | 176±2μs             | 1.01    | import_iris.Iris.time_io_format_picker                                                         |
|          | 231±2μs              | 231±1μs             | 1.00    | import_iris.Iris.time_iris                                                                     |
|          | 130±0.6μs            | 129±1μs             | 0.99    | import_iris.Iris.time_iterate                                                                  |
|          | 8.45±0.06ms          | 8.46±0.06ms         | 1.00    | import_iris.Iris.time_palette                                                                  |
|          | 2.21±0.04ms          | 2.23±0.04ms         | 1.01    | import_iris.Iris.time_plot                                                                     |
|          | 107±1μs              | 106±1μs             | 1.00    | import_iris.Iris.time_quickplot                                                                |
|          | 2.17±0.03ms          | 2.17±0.02ms         | 1.00    | import_iris.Iris.time_std_names                                                                |
|          | 1.78±0.03ms          | 1.76±0.01ms         | 0.98    | import_iris.Iris.time_symbols                                                                  |
|          | 101±0.5ms            | 101±1ms             | 1.00    | import_iris.Iris.time_tests                                                                    |
|          | 256±2μs              | 258±3μs             | 1.01    | import_iris.Iris.time_third_party_cartopy                                                      |
|          | 4.86±0.03ms          | 4.86±0.03ms         | 1.00    | import_iris.Iris.time_third_party_cf_units                                                     |
|          | 121±0.8μs            | 120±0.7μs           | 0.99    | import_iris.Iris.time_third_party_cftime                                                       |
|          | 2.78±0.02ms          | 2.79±0.01ms         | 1.01    | import_iris.Iris.time_third_party_matplotlib                                                   |
|          | 1.07±0.01ms          | 1.07±0ms            | 1.00    | import_iris.Iris.time_third_party_numpy                                                        |
|          | 171±4μs              | 172±2μs             | 1.00    | import_iris.Iris.time_third_party_scipy                                                        |
|          | 100±1μs              | 102±1μs             | 1.02    | import_iris.Iris.time_time                                                                     |
|          | 321±2μs              | 323±7μs             | 1.01    | import_iris.Iris.time_util                                                                     |
|          | 73.0±0.8μs           | 73.3±0.7μs          | 1.00    | iterate.IZip.time_izip                                                                         |
|          | 8.11±0.03ms          | 8.03±0.02ms         | 0.99    | load.LoadAndRealise.time_load((1280, 960, 5), False, 'FF')                                     |
|          | 8.80±0.08ms          | 8.85±0.08ms         | 1.01    | load.LoadAndRealise.time_load((1280, 960, 5), False, 'PP')                                     |
|          | 8.05±0.07ms          | 8.07±0.06ms         | 1.00    | load.LoadAndRealise.time_load((1280, 960, 5), True, 'FF')                                      |
|          | 8.89±0.08ms          | 8.90±0.1ms          | 1.00    | load.LoadAndRealise.time_load((1280, 960, 5), True, 'PP')                                      |
|          | 1.37±0.01s           | 1.38±0.01s          | 1.01    | load.LoadAndRealise.time_load((2, 2, 1000), False, 'FF')                                       |
|          | 1.51±0.02s           | 1.53±0.01s          | 1.02    | load.LoadAndRealise.time_load((2, 2, 1000), False, 'PP')                                       |
|          | 1.36±0.01s           | 1.37±0.01s          | 1.01    | load.LoadAndRealise.time_load((2, 2, 1000), True, 'FF')                                        |
|          | 1.53±0.01s           | 1.53±0.01s          | 1.01    | load.LoadAndRealise.time_load((2, 2, 1000), True, 'PP')                                        |
|          | 3.97±0.03ms          | 3.92±0.02ms         | 0.99    | load.LoadAndRealise.time_load((50, 50, 2), False, 'FF')                                        |
|          | 4.22±0.05ms          | 4.17±0.07ms         | 0.99    | load.LoadAndRealise.time_load((50, 50, 2), False, 'PP')                                        |
|          | 3.93±0.03ms          | 3.92±0.03ms         | 1.00    | load.LoadAndRealise.time_load((50, 50, 2), True, 'FF')                                         |
|          | 4.21±0.03ms          | 4.18±0.01ms         | 0.99    | load.LoadAndRealise.time_load((50, 50, 2), True, 'PP')                                         |
|          | 32.7±2ms             | 33.1±2ms            | 1.01    | load.LoadAndRealise.time_realise((1280, 960, 5), False, 'FF')                                  |
|          | 20.3±0.5ms           | 19.8±0.4ms          | 0.97    | load.LoadAndRealise.time_realise((1280, 960, 5), False, 'NetCDF')                              |
|          | 13.5±2ms             | 14.3±2ms            | 1.06    | load.LoadAndRealise.time_realise((1280, 960, 5), False, 'PP')                                  |
|          | 26.0±2ms             | 26.1±2ms            | 1.00    | load.LoadAndRealise.time_realise((1280, 960, 5), True, 'FF')                                   |
|          | 71.2±2ms             | 70.9±2ms            | 1.00    | load.LoadAndRealise.time_realise((1280, 960, 5), True, 'NetCDF')                               |
|          | 26.3±0.6ms           | 26.1±3ms            | 0.99    | load.LoadAndRealise.time_realise((1280, 960, 5), True, 'PP')                                   |
|          | 450±3ms              | 450±2ms             | 1.00    | load.LoadAndRealise.time_realise((2, 2, 1000), False, 'FF')                                    |
|          | 3.15±0.04ms          | 3.05±0.09ms         | 0.97    | load.LoadAndRealise.time_realise((2, 2, 1000), False, 'NetCDF')                                |
|          | 457±2ms              | 454±4ms             | 0.99    | load.LoadAndRealise.time_realise((2, 2, 1000), False, 'PP')                                    |
|          | 459±2ms              | 457±2ms             | 1.00    | load.LoadAndRealise.time_realise((2, 2, 1000), True, 'FF')                                     |
|          | 3.14±0.05ms          | 3.18±0.1ms          | 1.01    | load.LoadAndRealise.time_realise((2, 2, 1000), True, 'NetCDF')                                 |
|          | 464±2ms              | 463±4ms             | 1.00    | load.LoadAndRealise.time_realise((2, 2, 1000), True, 'PP')                                     |
|          | 1.59±0.1ms           | 1.56±0.1ms          | 0.98    | load.LoadAndRealise.time_realise((50, 50, 2), False, 'FF')                                     |
|          | 3.12±0.07ms          | 3.11±0.08ms         | 1.00    | load.LoadAndRealise.time_realise((50, 50, 2), False, 'NetCDF')                                 |
|          | 1.57±0.1ms           | 1.65±0.1ms          | 1.05    | load.LoadAndRealise.time_realise((50, 50, 2), False, 'PP')                                     |
|          | 1.61±0.1ms           | 1.59±0.09ms         | 0.99    | load.LoadAndRealise.time_realise((50, 50, 2), True, 'FF')                                      |
|          | 3.22±0.04ms          | 3.05±0.06ms         | 0.95    | load.LoadAndRealise.time_realise((50, 50, 2), True, 'NetCDF')                                  |
|          | 1.65±0.06ms          | 1.66±0.08ms         | 1.00    | load.LoadAndRealise.time_realise((50, 50, 2), True, 'PP')                                      |
|          | 8.23±0.07ms          | 8.20±0.04ms         | 1.00    | load.STASHConstraint.time_stash_constraint((1280, 960, 5), 'FF')                               |
|          | 8.97±0.08ms          | 8.98±0.07ms         | 1.00    | load.STASHConstraint.time_stash_constraint((1280, 960, 5), 'PP')                               |
|          | 1.37±0.01s           | 1.38±0.01s          | 1.01    | load.STASHConstraint.time_stash_constraint((2, 2, 1000), 'FF')                                 |
|          | 1.53±0.01s           | 1.54±0.01s          | 1.00    | load.STASHConstraint.time_stash_constraint((2, 2, 1000), 'PP')                                 |
|          | 3.96±0.02ms          | 3.97±0.02ms         | 1.00    | load.STASHConstraint.time_stash_constraint((2, 2, 2), 'FF')                                    |
|          | 4.22±0.06ms          | 4.25±0.04ms         | 1.01    | load.STASHConstraint.time_stash_constraint((2, 2, 2), 'PP')                                    |
|          | 8.13±0.05ms          | 8.12±0.1ms          | 1.00    | load.StructuredFF.time_structured_load((1280, 960, 5), False)                                  |
|          | 4.73±0.04ms          | 4.80±0.05ms         | 1.01    | load.StructuredFF.time_structured_load((1280, 960, 5), True)                                   |
|          | 1.36±0.01s           | 1.35±0.01s          | 0.99    | load.StructuredFF.time_structured_load((2, 2, 1000), False)                                    |
|          | 373±4ms              | 373±3ms             | 1.00    | load.StructuredFF.time_structured_load((2, 2, 1000), True)                                     |
|          | 3.92±0.02ms          | 3.94±0.03ms         | 1.01    | load.StructuredFF.time_structured_load((2, 2, 2), False)                                       |
|          | 3.57±0.03ms          | 3.55±0.02ms         | 0.99    | load.StructuredFF.time_structured_load((2, 2, 2), True)                                        |
|          | 151±0.6ms            | 151±1ms             | 1.00    | load.TimeConstraint.time_time_constraint(20, 'FF')                                             |
|          | 166±1ms              | 165±1ms             | 0.99    | load.TimeConstraint.time_time_constraint(20, 'PP')                                             |
|          | 29.8±0.2ms           | 29.8±0.4ms          | 1.00    | load.TimeConstraint.time_time_constraint(3, 'FF')                                              |
|          | 31.9±0.3ms           | 32.3±0.4ms          | 1.01    | load.TimeConstraint.time_time_constraint(3, 'PP')                                              |
|          | 18.1±0.3ms           | 18.2±0.4ms          | 1.00    | load.ugrid.BasicLoading.time_load_file(1)                                                      |
|          | 43.0±0.5ms           | 41.9±0.2ms          | 0.98    | load.ugrid.BasicLoading.time_load_file(200000)                                                 |
|          | 14.9±0.3ms           | 14.6±0.3ms          | 0.98    | load.ugrid.BasicLoading.time_load_mesh(1)                                                      |
|          | 23.4±0.2ms           | 23.1±0.5ms          | 0.99    | load.ugrid.BasicLoading.time_load_mesh(200000)                                                 |
|          | 18.0±0.4ms           | 18.2±0.4ms          | 1.01    | load.ugrid.BasicLoadingTime.time_load_file(1)                                                  |
|          | 21.2±0.2ms           | 21.1±0.8ms          | 1.00    | load.ugrid.BasicLoadingTime.time_load_file(200000)                                             |
|          | 14.6±0.3ms           | 14.9±0.3ms          | 1.02    | load.ugrid.BasicLoadingTime.time_load_mesh(1)                                                  |
|          | 18.1±0.2ms           | 17.8±0.5ms          | 0.98    | load.ugrid.BasicLoadingTime.time_load_mesh(200000)                                             |
|          | 19.2±0.4ms           | 19.6±0.5ms          | 1.02    | load.ugrid.Callback.time_load_file_callback(1)                                                 |
|          | 51.4±0.5ms           | 51.4±0.7ms          | 1.00    | load.ugrid.Callback.time_load_file_callback(200000)                                            |
|          | 19.1±0.3ms           | 19.5±0.3ms          | 1.02    | load.ugrid.CallbackTime.time_load_file_callback(1)                                             |
|          | 23.1±0.5ms           | 23.0±0.3ms          | 0.99    | load.ugrid.CallbackTime.time_load_file_callback(200000)                                        |
|          | 2.98±0.08ms          | 2.98±0.09ms         | 1.00    | load.ugrid.DataRealisation.time_realise_data(10000)                                            |
|          | 4.06±0.4ms           | 5.64±0.8ms          | ~1.39   | load.ugrid.DataRealisation.time_realise_data(200000)                                           |
|          | 41.1±0.7ms           | 40.5±0.7ms          | 0.99    | load.ugrid.DataRealisationTime.time_realise_data(10000)                                        |
|          | 824±6ms              | 822±6ms             | 1.00    | load.ugrid.DataRealisationTime.time_realise_data(200000)                                       |
|          | 123±1ms              | 122±1ms             | 1.00    | merge_concat.Concatenate.time_concatenate                                                      |
|          | 24.1                 | 24.1                | 1.00    | merge_concat.Concatenate.track_mem_merge                                                       |
|          | 50.1±0.6ms           | 50.4±0.7ms          | 1.01    | merge_concat.Merge.time_merge                                                                  |
|          | 11.0                 | 10.9                | 0.99    | merge_concat.Merge.track_mem_merge                                                             |
|          | 403±2ns              | 395±8ns             | 0.98    | mesh.utils.regions_combine.CombineRegionsComputeRealData.time_compute_data(50)                 |
|          | 257±2ms              | 257±1ms             | 1.00    | mesh.utils.regions_combine.CombineRegionsComputeRealData.time_compute_data(500)                |
|          | 0.6                  | 0.6                 | 1.00    | mesh.utils.regions_combine.CombineRegionsComputeRealData.track_addedmem_compute_data(50)       |
|          | 57.3                 | 57.3                | 1.00    | mesh.utils.regions_combine.CombineRegionsComputeRealData.track_addedmem_compute_data(500)      |
|          | 14.4±0.1ms           | 14.3±0.06ms         | 1.00    | mesh.utils.regions_combine.CombineRegionsCreateCube.time_create_combined_cube(50)              |
|          | 16.4±0.2ms           | 16.3±0.1ms          | 1.00    | mesh.utils.regions_combine.CombineRegionsCreateCube.time_create_combined_cube(500)             |
|          | 0.5                  | 0.5                 | 1.00    | mesh.utils.regions_combine.CombineRegionsCreateCube.track_addedmem_create_combined_cube(50)    |
|          | 11.8                 | 11.8                | 1.00    | mesh.utils.regions_combine.CombineRegionsCreateCube.track_addedmem_create_combined_cube(500)   |
|          | 108±1ms              | 111±2ms             | 1.03    | mesh.utils.regions_combine.CombineRegionsFileStreamedCalc.time_stream_file2file(50)            |
|          | 713±5ms              | 711±4ms             | 1.00    | mesh.utils.regions_combine.CombineRegionsFileStreamedCalc.time_stream_file2file(500)           |
|          | 1.4                  | 1.4                 | 1.00    | mesh.utils.regions_combine.CombineRegionsFileStreamedCalc.track_addedmem_stream_file2file(50)  |
|          | 92.0                 | 92.0                | 1.00    | mesh.utils.regions_combine.CombineRegionsFileStreamedCalc.track_addedmem_stream_file2file(500) |
|          | 68.1±0.6ms           | 68.0±0.9ms          | 1.00    | mesh.utils.regions_combine.CombineRegionsSaveData.time_save(50)                                |
|          | 662±4ms              | 662±5ms             | 1.00    | mesh.utils.regions_combine.CombineRegionsSaveData.time_save(500)                               |
|          | 1.3                  | 1.4                 | 1.08    | mesh.utils.regions_combine.CombineRegionsSaveData.track_addedmem_save(50)                      |
|          | 92.0                 | 92.0                | 1.00    | mesh.utils.regions_combine.CombineRegionsSaveData.track_addedmem_save(500)                     |
|          | 2.1752849999999997   | 2.1752849999999997  | 1.00    | mesh.utils.regions_combine.CombineRegionsSaveData.track_filesize_saved(50)                     |
|          | 216.01528499999998   | 216.01528499999998  | 1.00    | mesh.utils.regions_combine.CombineRegionsSaveData.track_filesize_saved(500)                    |
|          | 6.61±0.05ms          | 6.63±0.04ms         | 1.00    | plot.AuxSort.time_aux_sort                                                                     |
|          | 78.2±4ms             | 78.4±5ms            | 1.00    | regridding.CurvilinearRegridding.time_regrid_pic                                               |
|          | 144.9                | 144.9               | 1.00    | regridding.CurvilinearRegridding.track_mem_regrid_pic                                          |
|          | 99.1±0.6ms           | 99.3±1ms            | 1.00    | regridding.HorizontalChunkedRegridding.time_regrid_area_w                                      |
|          | 50.2±0.8ms           | 51.2±3ms            | 1.02    | regridding.HorizontalChunkedRegridding.time_regrid_area_w_new_grid                             |
|          | 111.6                | 111.6               | 1.00    | regridding.HorizontalChunkedRegridding.track_mem_regrid_area_w                                 |
|          | 150.6                | 150.6               | 1.00    | regridding.HorizontalChunkedRegridding.track_mem_regrid_area_w_new_grid                        |
|          | 4.14±0.07ms          | 4.19±0.04ms         | 1.01    | save.NetcdfSave.time_netcdf_save_cube(50, False)                                               |
|          | 74.8±0.5ms           | 74.8±0.6ms          | 1.00    | save.NetcdfSave.time_netcdf_save_cube(50, True)                                                |
|          | 52.3±0.6ms           | 52.7±0.4ms          | 1.01    | save.NetcdfSave.time_netcdf_save_cube(600, False)                                              |
|          | 572±3ms              | 574±3ms             | 1.00    | save.NetcdfSave.time_netcdf_save_cube(600, True)                                               |
|          | 90.8±2ns             | 90.0±1ns            | 0.99    | save.NetcdfSave.time_netcdf_save_mesh(50, False)                                               |
|          | 57.5±0.5ms           | 57.2±0.4ms          | 1.00    | save.NetcdfSave.time_netcdf_save_mesh(50, True)                                                |
|          | 90.3±0.5ns           | 93.2±3ns            | 1.03    | save.NetcdfSave.time_netcdf_save_mesh(600, False)                                              |
|          | 504±3ms              | 504±2ms             | 1.00    | save.NetcdfSave.time_netcdf_save_mesh(600, True)                                               |
|          | 0.3                  | 0.3                 | 1.00    | save.NetcdfSave.track_addedmem_netcdf_save(50, False)                                          |
|          | 0.3                  | 0.3                 | 1.00    | save.NetcdfSave.track_addedmem_netcdf_save(600, False)                                         |
|          | 198.1                | 214.6               | 1.08    | save.NetcdfSave.track_addedmem_netcdf_save(600, True)                                          |
|          | 42.8±1ms             | 42.9±1ms            | 1.00    | stats.PearsonR.time_lazy                                                                       |
|          | 19.2±0.2ms           | 19.3±0.1ms          | 1.00    | stats.PearsonR.time_real                                                                       |
|          | 19.5                 | 19.6                | 1.01    | stats.PearsonR.track_lazy                                                                      |
|          | 17.8                 | 17.8                | 1.00    | stats.PearsonR.track_real                                                                      |
|          | 23.0±1ms             | 23.6±1ms            | 1.03    | trajectory.TrajectoryInterpolation.time_trajectory_linear                                      |
|          | 62.1±0.4ms           | 62.2±0.6ms          | 1.00    | trajectory.TrajectoryInterpolation.time_trajectory_nearest                                     |
|          | 32.2                 | 32.2                | 1.00    | trajectory.TrajectoryInterpolation.track_trajectory_linear                                     |
|          | 21.6                 | 21.6                | 1.00    | trajectory.TrajectoryInterpolation.track_trajectory_nearest                                    |

Benchmarks that have got worse:

| Change   |   Before [4585059b]  |   After [fd30e4dc]  |   Ratio | Benchmark (Parameter)                                |
|----------|----------------------|---------------------|---------|------------------------------------------------------|
| +        |                  1.6 |                   2 |    1.25 | save.NetcdfSave.track_addedmem_netcdf_save(50, True) |

Generated by GHA run 10111991325

@stephenworsley stephenworsley marked this pull request as ready for review July 29, 2024 09:04
@stephenworsley stephenworsley changed the title Proof of concept load performance improvement Load performance improvement (ignoring UGRID) Jul 29, 2024
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@stephenworsley Looks good! 💯

Just a couple of comments to service, then we can bank this 👍

lib/iris/fileformats/cf.py Outdated Show resolved Hide resolved
lib/iris/fileformats/netcdf/ugrid_load.py Outdated Show resolved Hide resolved
@bjlittle bjlittle self-assigned this Jul 29, 2024
stephenworsley and others added 2 commits July 29, 2024 14:44
Co-authored-by: Bill Little <bill.little@metoffice.gov.uk>
@bjlittle bjlittle enabled auto-merge (squash) July 29, 2024 13:57
@bjlittle bjlittle disabled auto-merge July 29, 2024 14:07
* main:
  Adding monthly and yearly arguments to `guess_bounds` (SciTools#6090)
@bjlittle bjlittle merged commit 48f1f4e into SciTools:main Jul 29, 2024
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tkknight added a commit to tkknight/iris that referenced this pull request Jul 30, 2024
* upstream/main:
  Load performance improvement (ignoring UGRID) (SciTools#6088)
  Adding monthly and yearly arguments to `guess_bounds` (SciTools#6090)
  Mesh nonexperimental extra (SciTools#6077)
  Mesh nonexperimental (SciTools#6061)
  Bump scitools/workflows from 2024.07.4 to 2024.07.5 (SciTools#6076)
  Updated environment lockfiles (SciTools#6068)
  Enable UGRID loading always; deprecate PARSE_UGRID_ON_LOAD. (SciTools#6054)
  Bump scitools/workflows from 2024.07.3 to 2024.07.4 (SciTools#6071)
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3 participants