# :warning: **Performance Alert** :warning: Possible performance regression was detected for benchmark **'CPU Benchmark Results'**. Benchmark result of this commit is worse than the previous benchmark result exceeding threshold `2`. | Benchmark suite | Current: c11024e0db864bd8487c68e3d0cf5e100fc07831 | Previous: db2b5e656e46add2bc684c16090b4e97540a6c37 | Ratio | |-|-|-|-| | `benchmarks/common/common_ops_test.py::test_membership_stacked_nested_last` | `75823.57871601981` iter/sec (`stddev: 7.478124109300453e-7`) | `245268.0521368682` iter/sec (`stddev: 3.363817368936713e-7`) | `3.23` | | `benchmarks/common/common_ops_test.py::test_membership_stacked_nested_leaf_last` | `75922.64237507244` iter/sec (`stddev: 8.535502349191083e-7`) | `248381.81812408732` iter/sec (`stddev: 3.7180846978687137e-7`) | `3.27` | This comment was automatically generated by [workflow](https://github.com/pytorch/tensordict/actions?query=workflow%3AContinuous%20Benchmark) using [github-action-benchmark](https://github.com/marketplace/actions/continuous-benchmark). CC: @vmoens Comment was generated at https://github.com/pytorch/tensordict/commit/c11024e0db864bd8487c68e3d0cf5e100fc07831#commitcomment-149087815

The following actions use a deprecated Node.js version and will be forced to run on node20: actions/checkout@v3, actions/setup-python@v4. For more info: https://github.blog/changelog/2024-03-07-github-actions-all-actions-will-run-on-node20-instead-of-node16-by-default/

Performance alert! Previous value was 245268.0521368682 and current value is 75823.57871601981. It is 3.234720073757856x worse than previous exceeding a ratio threshold 2