# :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: a3493defbc6a3a50a4e2fbf5cc1b2e51205cc94e | Previous: c21ded4600d20abaa4cf59baaa4fd7ff832a7bbc | Ratio | |-|-|-|-| | `benchmarks/common/common_ops_test.py::test_membership_stacked_nested_last` | `75448.96286408497` iter/sec (`stddev: 9.143071678840789e-7`) | `231606.51975156958` iter/sec (`stddev: 3.528242313624077e-7`) | `3.07` | | `benchmarks/common/common_ops_test.py::test_membership_stacked_nested_leaf_last` | `74693.3892447179` iter/sec (`stddev: 7.726010987554742e-7`) | `232940.6037365483` iter/sec (`stddev: 4.011178612554823e-7`) | `3.12` | 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/a3493defbc6a3a50a4e2fbf5cc1b2e51205cc94e#commitcomment-152842059

WARNING: Running pip as the 'root' user can result in broken permissions and conflicting behaviour with the system package manager. It is recommended to use a virtual environment instead: https://pip.pypa.io/warnings/venv

WARNING: The directory '/github/home/.cache/pip' or its parent directory is not owned or is not writable by the current user. The cache has been disabled. Check the permissions and owner of that directory. If executing pip with sudo, you should use sudo's -H flag.

# :warning: **Performance Alert** :warning: Possible performance regression was detected for benchmark **'GPU Benchmark Results'**. Benchmark result of this commit is worse than the previous benchmark result exceeding threshold `2`. | Benchmark suite | Current: a3493defbc6a3a50a4e2fbf5cc1b2e51205cc94e | Previous: bbd5ba8d24fb2032d8507f7604c2dbe7070c730a | Ratio | |-|-|-|-| | `benchmarks/common/common_ops_test.py::test_membership_stacked_nested_last` | `121845.18434419009` iter/sec (`stddev: 6.234414122016771e-7`) | `324669.70037109946` iter/sec (`stddev: 4.621471867034303e-7`) | `2.66` | | `benchmarks/common/common_ops_test.py::test_membership_stacked_nested_leaf_last` | `120196.52404798503` iter/sec (`stddev: 5.862319969022119e-7`) | `327790.13414549315` iter/sec (`stddev: 3.3158778622712117e-7`) | `2.73` | 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/a3493defbc6a3a50a4e2fbf5cc1b2e51205cc94e#commitcomment-152842217

The Ubuntu-20.04 brownout takes place from 2025-02-01. For more details, see https://github.com/actions/runner-images/issues/11101

Performance alert! Previous value was 231606.51975156958 and current value is 75448.96286408497. It is 3.0697111127795016x worse than previous exceeding a ratio threshold 2

Performance alert! Previous value was 232940.6037365483 and current value is 74693.3892447179. It is 3.1186240990265577x worse than previous exceeding a ratio threshold 2

Performance alert! Previous value was 324669.70037109946 and current value is 121845.18434419009. It is 2.664608389068276x worse than previous exceeding a ratio threshold 2