Performance Shift(s): 7d26cc12

[github-actions]

Benchmark comparison has identified performance shifts at:

• commit 7d26cc1 (Bump scitools/workflows from 2024.07.3 to 2024.07.4 #6071).

Please review the report below and take corrective/congratulatory action as appropriate :slightly_smiling_face:

⏱️ Performance Benchmark Report: 7d26cc1

Performance shifts

| Change   |   Before [38e5a230] <main~3> |   After [7d26cc12] <main~2> |   Ratio | Benchmark (Parameter)                                 |
|----------|------------------------------|-----------------------------|---------|-------------------------------------------------------|
| +        |                        181.6 |                       231.1 |    1.27 | save.NetcdfSave.track_addedmem_netcdf_save(600, True) |

Full benchmark results

Benchmarks that have stayed the same:

| Change   | Before [38e5a230] <main~3>   | After [7d26cc12] <main~2>   |   Ratio | Benchmark (Parameter)                                                                                  |
|----------|------------------------------|-----------------------------|---------|--------------------------------------------------------------------------------------------------------|
|          | 53.2±0.7ms                   | 53.7±0.9ms                  |    1.01 | aggregate_collapse.Aggregation.time_aggregated_by_COUNT(False)                                         |
|          | 53.8±0.5ms                   | 54.6±0.8ms                  |    1.01 | aggregate_collapse.Aggregation.time_aggregated_by_COUNT(True)                                          |
|          | 190±2ms                      | 191±1ms                     |    1.01 | aggregate_collapse.Aggregation.time_aggregated_by_FAST_PERCENTILE(False)                               |
|          | 191±2ms                      | 191±1ms                     |    1    | aggregate_collapse.Aggregation.time_aggregated_by_FAST_PERCENTILE(True)                                |
|          | 36.7±0.7ms                   | 36.4±0.7ms                  |    0.99 | aggregate_collapse.Aggregation.time_aggregated_by_GMEAN(False)                                         |
|          | 37.1±0.3ms                   | 37.5±0.3ms                  |    1.01 | aggregate_collapse.Aggregation.time_aggregated_by_GMEAN(True)                                          |
|          | 36.6±0.2ms                   | 36.8±0.3ms                  |    1.01 | aggregate_collapse.Aggregation.time_aggregated_by_HMEAN(False)                                         |
|          | 37.4±0.3ms                   | 37.5±0.2ms                  |    1    | aggregate_collapse.Aggregation.time_aggregated_by_HMEAN(True)                                          |
|          | 46.5±0.6ms                   | 46.5±0.6ms                  |    1    | aggregate_collapse.Aggregation.time_aggregated_by_MAX(False)                                           |
|          | 47.2±0.3ms                   | 47.8±0.7ms                  |    1.01 | aggregate_collapse.Aggregation.time_aggregated_by_MAX(True)                                            |
|          | 120±2ms                      | 120±1ms                     |    1    | aggregate_collapse.Aggregation.time_aggregated_by_MAX_RUN(False)                                       |
|          | 121±1ms                      | 121±1ms                     |    1    | aggregate_collapse.Aggregation.time_aggregated_by_MAX_RUN(True)                                        |
|          | 51.1±0.4ms                   | 51.3±0.7ms                  |    1    | aggregate_collapse.Aggregation.time_aggregated_by_MEAN(False)                                          |
|          | 51.6±0.5ms                   | 51.7±0.5ms                  |    1    | aggregate_collapse.Aggregation.time_aggregated_by_MEAN(True)                                           |
|          | 36.7±0.5ms                   | 36.6±0.4ms                  |    1    | aggregate_collapse.Aggregation.time_aggregated_by_MEDIAN(False)                                        |
|          | 37.4±0.5ms                   | 37.0±0.4ms                  |    0.99 | aggregate_collapse.Aggregation.time_aggregated_by_MEDIAN(True)                                         |
|          | 46.3±0.7ms                   | 46.6±0.4ms                  |    1.01 | aggregate_collapse.Aggregation.time_aggregated_by_MIN(False)                                           |
|          | 47.3±0.4ms                   | 47.1±0.6ms                  |    1    | aggregate_collapse.Aggregation.time_aggregated_by_MIN(True)                                            |
|          | 1.30±0.01s                   | 1.33±0.02s                  |    1.02 | aggregate_collapse.Aggregation.time_aggregated_by_PEAK(False)                                          |
|          | 1.31±0.01s                   | 1.31±0.01s                  |    1    | aggregate_collapse.Aggregation.time_aggregated_by_PEAK(True)                                           |
|          | 676±8ms                      | 669±8ms                     |    0.99 | aggregate_collapse.Aggregation.time_aggregated_by_PERCENTILE(False)                                    |
|          | 676±7ms                      | 680±10ms                    |    1.01 | aggregate_collapse.Aggregation.time_aggregated_by_PERCENTILE(True)                                     |
|          | 35.2±0.3ms                   | 34.8±0.2ms                  |    0.99 | aggregate_collapse.Aggregation.time_aggregated_by_PROPORTION(False)                                    |
|          | 35.5±0.3ms                   | 36.1±0.3ms                  |    1.02 | aggregate_collapse.Aggregation.time_aggregated_by_PROPORTION(True)                                     |
|          | 61.6±0.9ms                   | 62.2±0.6ms                  |    1.01 | aggregate_collapse.Aggregation.time_aggregated_by_RMS(False)                                           |
|          | 62.2±0.4ms                   | 62.8±0.4ms                  |    1.01 | aggregate_collapse.Aggregation.time_aggregated_by_RMS(True)                                            |
|          | 65.6±0.5ms                   | 65.9±0.7ms                  |    1    | aggregate_collapse.Aggregation.time_aggregated_by_STD_DEV(False)                                       |
|          | 66.3±0.9ms                   | 66.6±0.8ms                  |    1    | aggregate_collapse.Aggregation.time_aggregated_by_STD_DEV(True)                                        |
|          | 61.0±0.4ms                   | 61.0±0.5ms                  |    1    | aggregate_collapse.Aggregation.time_aggregated_by_VARIANCE(False)                                      |
|          | 61.9±0.6ms                   | 61.5±0.9ms                  |    0.99 | aggregate_collapse.Aggregation.time_aggregated_by_VARIANCE(True)                                       |
|          | 19.8±0.2ms                   | 19.8±0.4ms                  |    1    | aggregate_collapse.Aggregation.time_collapsed_by_COUNT(False)                                          |
|          | 23.4±0.2ms                   | 23.3±0.5ms                  |    0.99 | aggregate_collapse.Aggregation.time_collapsed_by_COUNT(True)                                           |
|          | 132±0.9ms                    | 131±1ms                     |    0.99 | aggregate_collapse.Aggregation.time_collapsed_by_FAST_PERCENTILE(False)                                |
|          | 144±0.8ms                    | 145±1ms                     |    1.01 | aggregate_collapse.Aggregation.time_collapsed_by_FAST_PERCENTILE(True)                                 |
|          | 18.1±0.3ms                   | 18.1±0.3ms                  |    1    | aggregate_collapse.Aggregation.time_collapsed_by_GMEAN(False)                                          |
|          | 21.9±0.4ms                   | 22.1±0.2ms                  |    1.01 | aggregate_collapse.Aggregation.time_collapsed_by_GMEAN(True)                                           |
|          | 18.0±0.2ms                   | 18.1±0.4ms                  |    1    | aggregate_collapse.Aggregation.time_collapsed_by_HMEAN(False)                                          |
|          | 21.8±0.4ms                   | 22.0±0.4ms                  |    1.01 | aggregate_collapse.Aggregation.time_collapsed_by_HMEAN(True)                                           |
|          | 18.6±0.2ms                   | 18.9±0.2ms                  |    1.02 | aggregate_collapse.Aggregation.time_collapsed_by_MAX(False)                                            |
|          | 22.0±0.2ms                   | 22.6±0.4ms                  |    1.02 | aggregate_collapse.Aggregation.time_collapsed_by_MAX(True)                                             |
|          | 34.7±0.7ms                   | 34.0±2ms                    |    0.98 | aggregate_collapse.Aggregation.time_collapsed_by_MAX_RUN(False)                                        |
|          | 38.2±0.7ms                   | 37.7±0.8ms                  |    0.99 | aggregate_collapse.Aggregation.time_collapsed_by_MAX_RUN(True)                                         |
|          | 19.0±0.6ms                   | 19.4±0.6ms                  |    1.02 | aggregate_collapse.Aggregation.time_collapsed_by_MEAN(False)                                           |
|          | 22.7±0.3ms                   | 22.7±0.6ms                  |    1    | aggregate_collapse.Aggregation.time_collapsed_by_MEAN(True)                                            |
|          | 18.7±0.2ms                   | 19.1±0.6ms                  |    1.02 | aggregate_collapse.Aggregation.time_collapsed_by_MEDIAN(False)                                         |
|          | 22.2±0.2ms                   | 22.9±0.6ms                  |    1.03 | aggregate_collapse.Aggregation.time_collapsed_by_MEDIAN(True)                                          |
|          | 18.5±0.2ms                   | 18.8±0.5ms                  |    1.02 | aggregate_collapse.Aggregation.time_collapsed_by_MIN(False)                                            |
|          | 22.6±0.5ms                   | 22.7±0.7ms                  |    1    | aggregate_collapse.Aggregation.time_collapsed_by_MIN(True)                                             |
|          | 549±4ms                      | 549±3ms                     |    1    | aggregate_collapse.Aggregation.time_collapsed_by_PEAK(False)                                           |
|          | 558±6ms                      | 552±5ms                     |    0.99 | aggregate_collapse.Aggregation.time_collapsed_by_PEAK(True)                                            |
|          | 149±1ms                      | 152±2ms                     |    1.02 | aggregate_collapse.Aggregation.time_collapsed_by_PERCENTILE(False)                                     |
|          | 167±0.7ms                    | 168±2ms                     |    1.01 | aggregate_collapse.Aggregation.time_collapsed_by_PERCENTILE(True)                                      |
|          | 17.7±0.2ms                   | 18.1±0.5ms                  |    1.02 | aggregate_collapse.Aggregation.time_collapsed_by_PROPORTION(False)                                     |
|          | 21.5±0.3ms                   | 21.7±0.3ms                  |    1.01 | aggregate_collapse.Aggregation.time_collapsed_by_PROPORTION(True)                                      |
|          | 20.9±0.2ms                   | 21.2±0.4ms                  |    1.02 | aggregate_collapse.Aggregation.time_collapsed_by_RMS(False)                                            |
|          | 24.8±0.3ms                   | 24.8±0.4ms                  |    1    | aggregate_collapse.Aggregation.time_collapsed_by_RMS(True)                                             |
|          | 21.3±0.3ms                   | 21.3±0.2ms                  |    1    | aggregate_collapse.Aggregation.time_collapsed_by_STD_DEV(False)                                        |
|          | 24.9±0.3ms                   | 24.9±0.4ms                  |    1    | aggregate_collapse.Aggregation.time_collapsed_by_STD_DEV(True)                                         |
|          | 20.6±0.2ms                   | 20.6±0.3ms                  |    1    | aggregate_collapse.Aggregation.time_collapsed_by_VARIANCE(False)                                       |
|          | 24.2±0.2ms                   | 24.2±0.5ms                  |    1    | aggregate_collapse.Aggregation.time_collapsed_by_VARIANCE(True)                                        |
|          | 82.7±0.4ms                   | 83.1±0.7ms                  |    1.01 | aggregate_collapse.WeightedAggregation.time_w_aggregated_by_MEAN(False)                                |
|          | 83.4±0.7ms                   | 83.8±1ms                    |    1.01 | aggregate_collapse.WeightedAggregation.time_w_aggregated_by_MEAN(True)                                 |
|          | 94.1±0.9ms                   | 95.4±1ms                    |    1.01 | aggregate_collapse.WeightedAggregation.time_w_aggregated_by_RMS(False)                                 |
|          | 95.1±0.5ms                   | 95.9±0.7ms                  |    1.01 | aggregate_collapse.WeightedAggregation.time_w_aggregated_by_RMS(True)                                  |
|          | 58.1±0.4ms                   | 58.1±0.8ms                  |    1    | aggregate_collapse.WeightedAggregation.time_w_aggregated_by_SUM(False)                                 |
|          | 58.7±0.8ms                   | 58.7±0.7ms                  |    1    | aggregate_collapse.WeightedAggregation.time_w_aggregated_by_SUM(True)                                  |
|          | 28.8±0.3ms                   | 29.0±0.6ms                  |    1.01 | aggregate_collapse.WeightedAggregation.time_w_collapsed_by_MEAN(False)                                 |
|          | 32.9±0.5ms                   | 33.0±0.4ms                  |    1    | aggregate_collapse.WeightedAggregation.time_w_collapsed_by_MEAN(True)                                  |
|          | 31.1±0.4ms                   | 31.0±0.6ms                  |    1    | aggregate_collapse.WeightedAggregation.time_w_collapsed_by_RMS(False)                                  |
|          | 34.7±0.7ms                   | 34.9±0.8ms                  |    1.01 | aggregate_collapse.WeightedAggregation.time_w_collapsed_by_RMS(True)                                   |
|          | 25.7±0.2ms                   | 25.7±0.3ms                  |    1    | aggregate_collapse.WeightedAggregation.time_w_collapsed_by_SUM(False)                                  |
|          | 29.4±0.2ms                   | 29.3±0.6ms                  |    1    | aggregate_collapse.WeightedAggregation.time_w_collapsed_by_SUM(True)                                   |
|          | 317±2ms                      | 325±4ms                     |    1.03 | aggregate_collapse.WeightedAggregation.time_w_collapsed_by_WPERCENTILE(False)                          |
|          | 342±3ms                      | 342±5ms                     |    1    | aggregate_collapse.WeightedAggregation.time_w_collapsed_by_WPERCENTILE(True)                           |
|          | 1.11±0.01ms                  | 1.11±0.02ms                 |    1    | cube.CubeCreation.time_create(False, 'construct')                                                      |
|          | 403±2μs                      | 399±5μs                     |    0.99 | cube.CubeCreation.time_create(False, 'instantiate')                                                    |
|          | 940±6μs                      | 939±10μs                    |    1    | cube.CubeCreation.time_create(True, 'construct')                                                       |
|          | 577±6μs                      | 582±9μs                     |    1.01 | cube.CubeCreation.time_create(True, 'instantiate')                                                     |
|          | 223±3ms                      | 222±2ms                     |    1    | cube.CubeEquality.time_equality(False, False, 'all_equal')                                             |
|          | 112±0.9ms                    | 113±2ms                     |    1.01 | cube.CubeEquality.time_equality(False, False, 'coord_inequality')                                      |
|          | 233±3ms                      | 231±2ms                     |    0.99 | cube.CubeEquality.time_equality(False, False, 'data_inequality')                                       |
|          | 16.4±0.2μs                   | 16.6±0.3μs                  |    1.01 | cube.CubeEquality.time_equality(False, False, 'metadata_inequality')                                   |
|          | 310±3ms                      | 309±2ms                     |    1    | cube.CubeEquality.time_equality(False, True, 'all_equal')                                              |
|          | 199±3ms                      | 200±3ms                     |    1    | cube.CubeEquality.time_equality(False, True, 'coord_inequality')                                       |
|          | 317±3ms                      | 318±4ms                     |    1    | cube.CubeEquality.time_equality(False, True, 'data_inequality')                                        |
|          | 16.8±0.1μs                   | 16.7±0.1μs                  |    0.99 | cube.CubeEquality.time_equality(False, True, 'metadata_inequality')                                    |
|          | 222±2ms                      | 219±4ms                     |    0.99 | cube.CubeEquality.time_equality(True, False, 'all_equal')                                              |
|          | 113±0.9ms                    | 112±2ms                     |    1    | cube.CubeEquality.time_equality(True, False, 'coord_inequality')                                       |
|          | 235±3ms                      | 233±3ms                     |    0.99 | cube.CubeEquality.time_equality(True, False, 'data_inequality')                                        |
|          | 53.4±0.5μs                   | 52.9±0.4μs                  |    0.99 | cube.CubeEquality.time_equality(True, False, 'metadata_inequality')                                    |
|          | 306±3ms                      | 307±3ms                     |    1.01 | cube.CubeEquality.time_equality(True, True, 'all_equal')                                               |
|          | 201±2ms                      | 201±1ms                     |    1    | cube.CubeEquality.time_equality(True, True, 'coord_inequality')                                        |
|          | 319±3ms                      | 317±2ms                     |    0.99 | cube.CubeEquality.time_equality(True, True, 'data_inequality')                                         |
|          | 54.7±0.6μs                   | 54.1±0.5μs                  |    0.99 | cube.CubeEquality.time_equality(True, True, 'metadata_inequality')                                     |
|          | 391±2ns                      | 394±5ns                     |    1.01 | experimental.ugrid.regions_combine.CombineRegionsComputeRealData.time_compute_data(50)                 |
|          | 257±2ms                      | 257±3ms                     |    1    | experimental.ugrid.regions_combine.CombineRegionsComputeRealData.time_compute_data(500)                |
|          | 0.6                          | 0.6                         |    1    | experimental.ugrid.regions_combine.CombineRegionsComputeRealData.track_addedmem_compute_data(50)       |
|          | 57.3                         | 57.3                        |    1    | experimental.ugrid.regions_combine.CombineRegionsComputeRealData.track_addedmem_compute_data(500)      |
|          | 14.4±0.2ms                   | 14.3±0.2ms                  |    1    | experimental.ugrid.regions_combine.CombineRegionsCreateCube.time_create_combined_cube(50)              |
|          | 16.4±0.3ms                   | 16.1±0.2ms                  |    0.98 | experimental.ugrid.regions_combine.CombineRegionsCreateCube.time_create_combined_cube(500)             |
|          | 0.5                          | 0.5                         |    1    | experimental.ugrid.regions_combine.CombineRegionsCreateCube.track_addedmem_create_combined_cube(50)    |
|          | 11.8                         | 11.8                        |    1    | experimental.ugrid.regions_combine.CombineRegionsCreateCube.track_addedmem_create_combined_cube(500)   |
|          | 106±0.9ms                    | 107±2ms                     |    1.01 | experimental.ugrid.regions_combine.CombineRegionsFileStreamedCalc.time_stream_file2file(50)            |
|          | 703±4ms                      | 701±5ms                     |    1    | experimental.ugrid.regions_combine.CombineRegionsFileStreamedCalc.time_stream_file2file(500)           |
|          | 1.4                          | 1.4                         |    1    | experimental.ugrid.regions_combine.CombineRegionsFileStreamedCalc.track_addedmem_stream_file2file(50)  |
|          | 92.0                         | 92.0                        |    1    | experimental.ugrid.regions_combine.CombineRegionsFileStreamedCalc.track_addedmem_stream_file2file(500) |
|          | 66.6±0.5ms                   | 67.1±0.5ms                  |    1.01 | experimental.ugrid.regions_combine.CombineRegionsSaveData.time_save(50)                                |
|          | 657±5ms                      | 660±4ms                     |    1    | experimental.ugrid.regions_combine.CombineRegionsSaveData.time_save(500)                               |
|          | 1.3                          | 1.3                         |    1    | experimental.ugrid.regions_combine.CombineRegionsSaveData.track_addedmem_save(50)                      |
|          | 92.0                         | 92.0                        |    1    | experimental.ugrid.regions_combine.CombineRegionsSaveData.track_addedmem_save(500)                     |
|          | 2.1752849999999997           | 2.1752849999999997          |    1    | experimental.ugrid.regions_combine.CombineRegionsSaveData.track_filesize_saved(50)                     |
|          | 216.01528499999998           | 216.01528499999998          |    1    | experimental.ugrid.regions_combine.CombineRegionsSaveData.track_filesize_saved(500)                    |
|          | 658±2μs                      | 659±5μs                     |    1    | import_iris.Iris.time__concatenate                                                                     |
|          | 180±4μs                      | 181±2μs                     |    1.01 | import_iris.Iris.time__constraints                                                                     |
|          | 109±0.9μs                    | 111±1μs                     |    1.02 | import_iris.Iris.time__data_manager                                                                    |
|          | 92.9±0.6μs                   | 94.5±0.9μs                  |    1.02 | import_iris.Iris.time__deprecation                                                                     |
|          | 138±1μs                      | 139±2μs                     |    1.01 | import_iris.Iris.time__lazy_data                                                                       |
|          | 904±10μs                     | 897±6μs                     |    0.99 | import_iris.Iris.time__merge                                                                           |
|          | 77.1±0.6μs                   | 78.3±1μs                    |    1.02 | import_iris.Iris.time__representation                                                                  |
|          | 485±4μs                      | 490±5μs                     |    1.01 | import_iris.Iris.time_analysis                                                                         |
|          | 141±2μs                      | 140±1μs                     |    1    | import_iris.Iris.time_analysis__area_weighted                                                          |
|          | 109±1μs                      | 111±0.9μs                   |    1.02 | import_iris.Iris.time_analysis__grid_angles                                                            |
|          | 242±2μs                      | 241±2μs                     |    1    | import_iris.Iris.time_analysis__interpolation                                                          |
|          | 187±3μs                      | 186±2μs                     |    0.99 | import_iris.Iris.time_analysis__regrid                                                                 |
|          | 114±2μs                      | 113±1μs                     |    0.99 | import_iris.Iris.time_analysis__scipy_interpolate                                                      |
|          | 139±3μs                      | 143±1μs                     |    1.03 | import_iris.Iris.time_analysis_calculus                                                                |
|          | 330±3μs                      | 330±2μs                     |    1    | import_iris.Iris.time_analysis_cartography                                                             |
|          | 95.1±2μs                     | 96.8±0.6μs                  |    1.02 | import_iris.Iris.time_analysis_geomerty                                                                |
|          | 221±5μs                      | 219±2μs                     |    0.99 | import_iris.Iris.time_analysis_maths                                                                   |
|          | 95.9±0.7μs                   | 98.3±1μs                    |    1.02 | import_iris.Iris.time_analysis_stats                                                                   |
|          | 174±2μs                      | 176±3μs                     |    1.01 | import_iris.Iris.time_analysis_trajectory                                                              |
|          | 305±2μs                      | 305±3μs                     |    1    | import_iris.Iris.time_aux_factory                                                                      |
|          | 83.8±0.3μs                   | 85.1±0.6μs                  |    1.02 | import_iris.Iris.time_common                                                                           |
|          | 161±1μs                      | 163±2μs                     |    1.01 | import_iris.Iris.time_common_lenient                                                                   |
|          | 994±20μs                     | 995±20μs                    |    1    | import_iris.Iris.time_common_metadata                                                                  |
|          | 132±0.6μs                    | 132±2μs                     |    1    | import_iris.Iris.time_common_mixin                                                                     |
|          | 1.19±0.01ms                  | 1.19±0.01ms                 |    1    | import_iris.Iris.time_common_resolve                                                                   |
|          | 198±3μs                      | 198±2μs                     |    1    | import_iris.Iris.time_config                                                                           |
|          | 115±0.7μs                    | 118±2μs                     |    1.03 | import_iris.Iris.time_coord_categorisation                                                             |
|          | 358±4μs                      | 363±4μs                     |    1.01 | import_iris.Iris.time_coord_systems                                                                    |
|          | 740±8μs                      | 744±8μs                     |    1.01 | import_iris.Iris.time_coords                                                                           |
|          | 669±6μs                      | 676±10μs                    |    1.01 | import_iris.Iris.time_cube                                                                             |
|          | 224±4μs                      | 230±3μs                     |    1.03 | import_iris.Iris.time_exceptions                                                                       |
|          | 78.3±0.5μs                   | 80.7±0.9μs                  |    1.03 | import_iris.Iris.time_experimental                                                                     |
|          | 185±1μs                      | 186±3μs                     |    1    | import_iris.Iris.time_fileformats                                                                      |
|          | 252±3μs                      | 255±4μs                     |    1.01 | import_iris.Iris.time_fileformats__ff                                                                  |
|          | 2.70±0.02ms                  | 2.70±0.01ms                 |    1    | import_iris.Iris.time_fileformats__ff_cross_references                                                 |
|          | 79.4±0.6μs                   | 79.7±0.7μs                  |    1    | import_iris.Iris.time_fileformats__pp_lbproc_pairs                                                     |
|          | 115±1μs                      | 117±1μs                     |    1.02 | import_iris.Iris.time_fileformats_abf                                                                  |
|          | 363±3μs                      | 366±6μs                     |    1.01 | import_iris.Iris.time_fileformats_cf                                                                   |
|          | 5.35±0.05ms                  | 5.37±0.04ms                 |    1    | import_iris.Iris.time_fileformats_dot                                                                  |
|          | 75.3±0.7μs                   | 76.8±1μs                    |    1.02 | import_iris.Iris.time_fileformats_name                                                                 |
|          | 258±2μs                      | 260±2μs                     |    1.01 | import_iris.Iris.time_fileformats_name_loaders                                                         |
|          | 119±1μs                      | 120±2μs                     |    1.01 | import_iris.Iris.time_fileformats_netcdf                                                               |
|          | 122±0.5μs                    | 125±0.8μs                   |    1.02 | import_iris.Iris.time_fileformats_nimrod                                                               |
|          | 214±6μs                      | 216±3μs                     |    1.01 | import_iris.Iris.time_fileformats_nimrod_load_rules                                                    |
|          | 791±10μs                     | 787±8μs                     |    1    | import_iris.Iris.time_fileformats_pp                                                                   |
|          | 180±2μs                      | 181±3μs                     |    1    | import_iris.Iris.time_fileformats_pp_load_rules                                                        |
|          | 135±2μs                      | 137±2μs                     |    1.01 | import_iris.Iris.time_fileformats_pp_save_rules                                                        |
|          | 517±2μs                      | 520±4μs                     |    1.01 | import_iris.Iris.time_fileformats_rules                                                                |
|          | 217±1μs                      | 221±4μs                     |    1.02 | import_iris.Iris.time_fileformats_structured_array_identification                                      |
|          | 83.2±0.3μs                   | 85.0±0.8μs                  |    1.02 | import_iris.Iris.time_fileformats_um                                                                   |
|          | 160±0.5μs                    | 164±2μs                     |    1.03 | import_iris.Iris.time_fileformats_um__fast_load                                                        |
|          | 138±1μs                      | 140±4μs                     |    1.02 | import_iris.Iris.time_fileformats_um__fast_load_structured_fields                                      |
|          | 75.8±0.6μs                   | 76.5±0.8μs                  |    1.01 | import_iris.Iris.time_fileformats_um__ff_replacement                                                   |
|          | 82.7±0.7μs                   | 83.0±2μs                    |    1    | import_iris.Iris.time_fileformats_um__optimal_array_structuring                                        |
|          | 984±10μs                     | 987±9μs                     |    1    | import_iris.Iris.time_fileformats_um_cf_map                                                            |
|          | 136±0.7μs                    | 137±1μs                     |    1.01 | import_iris.Iris.time_io                                                                               |
|          | 173±3μs                      | 176±2μs                     |    1.02 | import_iris.Iris.time_io_format_picker                                                                 |
|          | 226±1μs                      | 227±2μs                     |    1    | import_iris.Iris.time_iris                                                                             |
|          | 127±0.8μs                    | 127±2μs                     |    1    | import_iris.Iris.time_iterate                                                                          |
|          | 8.35±0.09ms                  | 8.38±0.07ms                 |    1    | import_iris.Iris.time_palette                                                                          |
|          | 2.24±0.04ms                  | 2.25±0.06ms                 |    1    | import_iris.Iris.time_plot                                                                             |
|          | 104±1μs                      | 106±1μs                     |    1.01 | import_iris.Iris.time_quickplot                                                                        |
|          | 2.17±0.04ms                  | 2.15±0.01ms                 |    0.99 | import_iris.Iris.time_std_names                                                                        |
|          | 1.74±0.01ms                  | 1.75±0.01ms                 |    1.01 | import_iris.Iris.time_symbols                                                                          |
|          | 34.2±2ms                     | 34.4±0.9ms                  |    1.01 | import_iris.Iris.time_tests                                                                            |
|          | 255±4μs                      | 256±2μs                     |    1    | import_iris.Iris.time_third_party_cartopy                                                              |
|          | 4.83±0.04ms                  | 4.80±0.03ms                 |    0.99 | import_iris.Iris.time_third_party_cf_units                                                             |
|          | 118±2μs                      | 122±2μs                     |    1.03 | import_iris.Iris.time_third_party_cftime                                                               |
|          | 2.78±0.03ms                  | 2.78±0.02ms                 |    1    | import_iris.Iris.time_third_party_matplotlib                                                           |
|          | 1.07±0ms                     | 1.07±0.01ms                 |    1    | import_iris.Iris.time_third_party_numpy                                                                |
|          | 170±1μs                      | 175±3μs                     |    1.03 | import_iris.Iris.time_third_party_scipy                                                                |
|          | 99.5±0.7μs                   | 101±1μs                     |    1.01 | import_iris.Iris.time_time                                                                             |
|          | 328±6μs                      | 322±5μs                     |    0.98 | import_iris.Iris.time_util                                                                             |
|          | 73.0±0.8μs                   | 72.8±0.5μs                  |    1    | iterate.IZip.time_izip                                                                                 |
|          | 7.98±0.1ms                   | 8.03±0.09ms                 |    1.01 | load.LoadAndRealise.time_load((1280, 960, 5), False, 'FF')                                             |
|          | 24.3±0.5ms                   | 24.4±0.6ms                  |    1    | load.LoadAndRealise.time_load((1280, 960, 5), False, 'NetCDF')                                         |
|          | 8.77±0.1ms                   | 8.76±0.08ms                 |    1    | load.LoadAndRealise.time_load((1280, 960, 5), False, 'PP')                                             |
|          | 7.99±0.05ms                  | 7.95±0.03ms                 |    1    | load.LoadAndRealise.time_load((1280, 960, 5), True, 'FF')                                              |
|          | 21.8±0.3ms                   | 21.6±0.1ms                  |    0.99 | load.LoadAndRealise.time_load((1280, 960, 5), True, 'NetCDF')                                          |
|          | 8.74±0.03ms                  | 8.67±0.1ms                  |    0.99 | load.LoadAndRealise.time_load((1280, 960, 5), True, 'PP')                                              |
|          | 1.33±0.01s                   | 1.34±0.01s                  |    1    | load.LoadAndRealise.time_load((2, 2, 1000), False, 'FF')                                               |
|          | 20.9±0.09ms                  | 21.2±0.2ms                  |    1.02 | load.LoadAndRealise.time_load((2, 2, 1000), False, 'NetCDF')                                           |
|          | 1.49±0.01s                   | 1.51±0.01s                  |    1.01 | load.LoadAndRealise.time_load((2, 2, 1000), False, 'PP')                                               |
|          | 1.34±0.01s                   | 1.33±0.01s                  |    0.99 | load.LoadAndRealise.time_load((2, 2, 1000), True, 'FF')                                                |
|          | 20.9±0.2ms                   | 21.1±0.2ms                  |    1.01 | load.LoadAndRealise.time_load((2, 2, 1000), True, 'NetCDF')                                            |
|          | 1.50±0.01s                   | 1.51±0.01s                  |    1    | load.LoadAndRealise.time_load((2, 2, 1000), True, 'PP')                                                |
|          | 3.86±0.03ms                  | 3.86±0.04ms                 |    1    | load.LoadAndRealise.time_load((50, 50, 2), False, 'FF')                                                |
|          | 19.9±0.09ms                  | 20.2±0.1ms                  |    1.02 | load.LoadAndRealise.time_load((50, 50, 2), False, 'NetCDF')                                            |
|          | 4.14±0.1ms                   | 4.12±0.04ms                 |    1    | load.LoadAndRealise.time_load((50, 50, 2), False, 'PP')                                                |
|          | 3.86±0.04ms                  | 3.85±0.03ms                 |    1    | load.LoadAndRealise.time_load((50, 50, 2), True, 'FF')                                                 |
|          | 19.9±0.3ms                   | 20.2±0.2ms                  |    1.01 | load.LoadAndRealise.time_load((50, 50, 2), True, 'NetCDF')                                             |
|          | 4.15±0.03ms                  | 4.10±0.03ms                 |    0.99 | load.LoadAndRealise.time_load((50, 50, 2), True, 'PP')                                                 |
|          | 33.0±2ms                     | 31.8±3ms                    |    0.96 | load.LoadAndRealise.time_realise((1280, 960, 5), False, 'FF')                                          |
|          | 19.4±0.3ms                   | 19.6±0.3ms                  |    1.01 | load.LoadAndRealise.time_realise((1280, 960, 5), False, 'NetCDF')                                      |
|          | 14.3±3ms                     | 13.5±2ms                    |    0.94 | load.LoadAndRealise.time_realise((1280, 960, 5), False, 'PP')                                          |
|          | 25.7±3ms                     | 25.7±2ms                    |    1    | load.LoadAndRealise.time_realise((1280, 960, 5), True, 'FF')                                           |
|          | 70.6±2ms                     | 70.8±2ms                    |    1    | load.LoadAndRealise.time_realise((1280, 960, 5), True, 'NetCDF')                                       |
|          | 25.7±1ms                     | 25.7±0.9ms                  |    1    | load.LoadAndRealise.time_realise((1280, 960, 5), True, 'PP')                                           |
|          | 437±2ms                      | 439±3ms                     |    1.01 | load.LoadAndRealise.time_realise((2, 2, 1000), False, 'FF')                                            |
|          | 2.77±0.07ms                  | 2.74±0.08ms                 |    0.99 | load.LoadAndRealise.time_realise((2, 2, 1000), False, 'NetCDF')                                        |
|          | 445±3ms                      | 445±3ms                     |    1    | load.LoadAndRealise.time_realise((2, 2, 1000), False, 'PP')                                            |
|          | 445±2ms                      | 443±3ms                     |    1    | load.LoadAndRealise.time_realise((2, 2, 1000), True, 'FF')                                             |
|          | 2.92±0.1ms                   | 2.87±0.09ms                 |    0.98 | load.LoadAndRealise.time_realise((2, 2, 1000), True, 'NetCDF')                                         |
|          | 449±3ms                      | 449±2ms                     |    1    | load.LoadAndRealise.time_realise((2, 2, 1000), True, 'PP')                                             |
|          | 1.55±0.09ms                  | 1.57±0.06ms                 |    1.01 | load.LoadAndRealise.time_realise((50, 50, 2), False, 'FF')                                             |
|          | 2.79±0.06ms                  | 2.88±0.08ms                 |    1.03 | load.LoadAndRealise.time_realise((50, 50, 2), False, 'NetCDF')                                         |
|          | 1.52±0.1ms                   | 1.60±0.05ms                 |    1.05 | load.LoadAndRealise.time_realise((50, 50, 2), False, 'PP')                                             |
|          | 1.54±0.04ms                  | 1.56±0.09ms                 |    1.01 | load.LoadAndRealise.time_realise((50, 50, 2), True, 'FF')                                              |
|          | 2.91±0.08ms                  | 2.99±0.1ms                  |    1.03 | load.LoadAndRealise.time_realise((50, 50, 2), True, 'NetCDF')                                          |
|          | 1.59±0.06ms                  | 1.55±0.03ms                 |    0.98 | load.LoadAndRealise.time_realise((50, 50, 2), True, 'PP')                                              |
|          | 364±3ms                      | 370±4ms                     |    1.01 | load.ManyVars.time_many_var_load                                                                       |
|          | 8.15±0.06ms                  | 8.13±0.08ms                 |    1    | load.STASHConstraint.time_stash_constraint((1280, 960, 5), 'FF')                                       |
|          | 8.88±0.06ms                  | 8.95±0.06ms                 |    1.01 | load.STASHConstraint.time_stash_constraint((1280, 960, 5), 'PP')                                       |
|          | 1.36±0.01s                   | 1.36±0.02s                  |    1    | load.STASHConstraint.time_stash_constraint((2, 2, 1000), 'FF')                                         |
|          | 1.52±0.01s                   | 1.53±0.01s                  |    1.01 | load.STASHConstraint.time_stash_constraint((2, 2, 1000), 'PP')                                         |
|          | 3.96±0.04ms                  | 3.91±0.04ms                 |    0.99 | load.STASHConstraint.time_stash_constraint((2, 2, 2), 'FF')                                            |
|          | 4.22±0.03ms                  | 4.20±0.04ms                 |    0.99 | load.STASHConstraint.time_stash_constraint((2, 2, 2), 'PP')                                            |
|          | 7.95±0.08ms                  | 7.98±0.1ms                  |    1    | load.StructuredFF.time_structured_load((1280, 960, 5), False)                                          |
|          | 4.73±0.05ms                  | 4.73±0.05ms                 |    1    | load.StructuredFF.time_structured_load((1280, 960, 5), True)                                           |
|          | 1.33±0.02s                   | 1.33±0.01s                  |    1    | load.StructuredFF.time_structured_load((2, 2, 1000), False)                                            |
|          | 366±4ms                      | 367±5ms                     |    1    | load.StructuredFF.time_structured_load((2, 2, 1000), True)                                             |
|          | 3.90±0.03ms                  | 3.90±0.05ms                 |    1    | load.StructuredFF.time_structured_load((2, 2, 2), False)                                               |
|          | 3.53±0.01ms                  | 3.51±0.03ms                 |    0.99 | load.StructuredFF.time_structured_load((2, 2, 2), True)                                                |
|          | 147±0.9ms                    | 146±1ms                     |    1    | load.TimeConstraint.time_time_constraint(20, 'FF')                                                     |
|          | 23.4±0.4ms                   | 23.5±0.3ms                  |    1    | load.TimeConstraint.time_time_constraint(20, 'NetCDF')                                                 |
|          | 163±0.9ms                    | 162±3ms                     |    0.99 | load.TimeConstraint.time_time_constraint(20, 'PP')                                                     |
|          | 29.0±0.1ms                   | 29.3±0.3ms                  |    1.01 | load.TimeConstraint.time_time_constraint(3, 'FF')                                                      |
|          | 23.1±0.5ms                   | 23.3±0.4ms                  |    1.01 | load.TimeConstraint.time_time_constraint(3, 'NetCDF')                                                  |
|          | 31.5±0.2ms                   | 31.3±0.1ms                  |    0.99 | load.TimeConstraint.time_time_constraint(3, 'PP')                                                      |
|          | 17.8±0.2ms                   | 17.9±0.3ms                  |    1    | load.ugrid.BasicLoading.time_load_file(1)                                                              |
|          | 41.0±0.6ms                   | 40.9±0.4ms                  |    1    | load.ugrid.BasicLoading.time_load_file(200000)                                                         |
|          | 14.5±0.2ms                   | 14.4±0.1ms                  |    1    | load.ugrid.BasicLoading.time_load_mesh(1)                                                              |
|          | 22.1±0.4ms                   | 22.6±0.5ms                  |    1.02 | load.ugrid.BasicLoading.time_load_mesh(200000)                                                         |
|          | 17.4±0.3ms                   | 17.6±0.4ms                  |    1.01 | load.ugrid.BasicLoadingTime.time_load_file(1)                                                          |
|          | 20.4±0.4ms                   | 20.2±0.4ms                  |    0.99 | load.ugrid.BasicLoadingTime.time_load_file(200000)                                                     |
|          | 14.2±0.1ms                   | 14.5±0.1ms                  |    1.02 | load.ugrid.BasicLoadingTime.time_load_mesh(1)                                                          |
|          | 16.9±0.6ms                   | 17.0±0.4ms                  |    1    | load.ugrid.BasicLoadingTime.time_load_mesh(200000)                                                     |
|          | 18.3±0.1ms                   | 18.6±0.3ms                  |    1.01 | load.ugrid.Callback.time_load_file_callback(1)                                                         |
|          | 50.1±0.7ms                   | 50.1±0.5ms                  |    1    | load.ugrid.Callback.time_load_file_callback(200000)                                                    |
|          | 18.8±0.2ms                   | 18.6±0.3ms                  |    0.99 | load.ugrid.CallbackTime.time_load_file_callback(1)                                                     |
|          | 22.5±0.4ms                   | 22.3±0.3ms                  |    0.99 | load.ugrid.CallbackTime.time_load_file_callback(200000)                                                |
|          | 2.78±0.09ms                  | 2.88±0.1ms                  |    1.04 | load.ugrid.DataRealisation.time_realise_data(10000)                                                    |
|          | 5.44±0.8ms                   | 5.48±0.09ms                 |    1.01 | load.ugrid.DataRealisation.time_realise_data(200000)                                                   |
|          | 37.8±0.5ms                   | 38.2±0.9ms                  |    1.01 | load.ugrid.DataRealisationTime.time_realise_data(10000)                                                |
|          | 809±5ms                      | 804±5ms                     |    0.99 | load.ugrid.DataRealisationTime.time_realise_data(200000)                                               |
|          | 118±2ms                      | 120±0.9ms                   |    1.02 | merge_concat.Concatenate.time_concatenate                                                              |
|          | 24.1                         | 24.1                        |    1    | merge_concat.Concatenate.track_mem_merge                                                               |
|          | 47.6±0.5ms                   | 48.6±0.8ms                  |    1.02 | merge_concat.Merge.time_merge                                                                          |
|          | 10.9                         | 11.0                        |    1.01 | merge_concat.Merge.track_mem_merge                                                                     |
|          | 6.53±0.03ms                  | 6.59±0.05ms                 |    1.01 | plot.AuxSort.time_aux_sort                                                                             |
|          | 79.0±1ms                     | 77.9±3ms                    |    0.99 | regridding.CurvilinearRegridding.time_regrid_pic                                                       |
|          | 144.9                        | 144.9                       |    1    | regridding.CurvilinearRegridding.track_mem_regrid_pic                                                  |
|          | 98.2±0.7ms                   | 98.6±0.8ms                  |    1    | regridding.HorizontalChunkedRegridding.time_regrid_area_w                                              |
|          | 47.9±1ms                     | 49.7±3ms                    |    1.04 | 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                                |
|          | 4.02±0.05ms                  | 4.11±0.04ms                 |    1.02 | save.NetcdfSave.time_netcdf_save_cube(50, False)                                                       |
|          | 72.2±0.5ms                   | 72.1±1ms                    |    1    | save.NetcdfSave.time_netcdf_save_cube(50, True)                                                        |
|          | 51.4±0.8ms                   | 51.7±0.7ms                  |    1.01 | save.NetcdfSave.time_netcdf_save_cube(600, False)                                                      |
|          | 565±4ms                      | 567±4ms                     |    1    | save.NetcdfSave.time_netcdf_save_cube(600, True)                                                       |
|          | 90.4±1ns                     | 89.6±2ns                    |    0.99 | save.NetcdfSave.time_netcdf_save_mesh(50, False)                                                       |
|          | 55.4±0.2ms                   | 54.9±0.1ms                  |    0.99 | save.NetcdfSave.time_netcdf_save_mesh(50, True)                                                        |
|          | 91.1±1ns                     | 90.1±0.8ns                  |    0.99 | save.NetcdfSave.time_netcdf_save_mesh(600, False)                                                      |
|          | 498±5ms                      | 498±2ms                     |    1    | save.NetcdfSave.time_netcdf_save_mesh(600, True)                                                       |
|          | 0.3                          | 0.3                         |    1    | save.NetcdfSave.track_addedmem_netcdf_save(50, False)                                                  |
|          | 1.7                          | 1.7                         |    1    | save.NetcdfSave.track_addedmem_netcdf_save(50, True)                                                   |
|          | 0.3                          | 0.3                         |    1    | save.NetcdfSave.track_addedmem_netcdf_save(600, False)                                                 |
|          | 42.3±0.8ms                   | 42.8±1ms                    |    1.01 | stats.PearsonR.time_lazy                                                                               |
|          | 19.1±0.4ms                   | 19.0±0.3ms                  |    1    | stats.PearsonR.time_real                                                                               |
|          | 19.6                         | 19.6                        |    1    | stats.PearsonR.track_lazy                                                                              |
|          | 17.8                         | 17.8                        |    1    | stats.PearsonR.track_real                                                                              |
|          | 22.5±0.7ms                   | 23.6±0.6ms                  |    1.05 | trajectory.TrajectoryInterpolation.time_trajectory_linear                                              |
|          | 61.1±0.4ms                   | 61.8±1ms                    |    1.01 | 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                                            |

Benchmarks that have got worse:

| Change   |   Before [38e5a230] <main~3> |   After [7d26cc12] <main~2> |   Ratio | Benchmark (Parameter)                                 |
|----------|------------------------------|-----------------------------|---------|-------------------------------------------------------|
| +        |                        181.6 |                       231.1 |    1.27 | save.NetcdfSave.track_addedmem_netcdf_save(600, True) |

Generated by GHA run 10049617470