# :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: f672c708f964bc33d2518eef3238d826916982f3 | Previous: d009835b4fccd1482e9a2bd2b597e00824b95c2d | Ratio | |-|-|-|-| | `benchmarks/test_replaybuffer_benchmark.py::test_rb_sample[TensorDictReplayBuffer-LazyMemmapStorage-RandomSampler-10000]` | `643.6479098900596` iter/sec (`stddev: 0.03227955688678535`) | `1868.0755423919275` iter/sec (`stddev: 0.00007699349336521317`) | `2.90` | | `benchmarks/test_replaybuffer_benchmark.py::test_rb_populate[TensorDictPrioritizedReplayBuffer-LazyMemmapStorage-None-400]` | `35.82819193046635` iter/sec (`stddev: 0.17966071463870026`) | `392.93898082119364` iter/sec (`stddev: 0.0010673916474571651`) | `10.97` | This comment was automatically generated by [workflow](https://github.com/pytorch/rl/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/rl/commit/f672c708f964bc33d2518eef3238d826916982f3#commitcomment-151131030

Performance alert! Previous value was 1868.0755423919275 and current value is 643.6479098900596. It is 2.902325190042193x worse than previous exceeding a ratio threshold 2