# :warning: **Performance Alert** :warning: Possible performance regression was detected for benchmark **'Python Benchmark with pytest-benchmark'**. Benchmark result of this commit is worse than the previous benchmark result exceeding threshold `2`. | Benchmark suite | Current: 5b2ae571e0049d3a2a2a93747268a833ac996bbc | Previous: f8f5be8c2fa81555f7b603446f8150001e7e0b18 | Ratio | |-|-|-|-| | `benchmark/benchmark.py::test_exact_shots_batched[ghz-density_matrix q[0], q[1]-10-6-sv]` | `15.97060182721627` iter/sec (`stddev: 0`) | `75.11033633298523` iter/sec (`stddev: 0`) | `4.70` | | `benchmark/benchmark.py::test_exact_shots_batched[qft-expectation z(q[0])-10-14-sv]` | `15.815900388928425` iter/sec (`stddev: 0`) | `33.38033841322367` iter/sec (`stddev: 0`) | `2.11` | | `benchmark/benchmark.py::test_nonzero_shots[ghz-expectation z(q[0])-100-3-dm]` | `42.18078612382109` iter/sec (`stddev: 0`) | `349.6487847901227` iter/sec (`stddev: 0`) | `8.29` | This comment was automatically generated by [workflow](https://github.com/amazon-braket/amazon-braket-simulator-v2-python/actions?query=workflow%3ABenchmark) using [github-action-benchmark](https://github.com/marketplace/actions/continuous-benchmark). Comment was generated at https://github.com/amazon-braket/amazon-braket-simulator-v2-python/pull/44#pullrequestreview-2532437863

ubuntu-latest pipelines will use ubuntu-24.04 soon. For more details, see https://github.com/actions/runner-images/issues/10636

Performance alert! Previous value was 75.11033633298523 and current value is 15.97060182721627. It is 4.703037314785852x worse than previous exceeding a ratio threshold 2

Performance alert! Previous value was 33.38033841322367 and current value is 15.815900388928425. It is 2.110555680825535x worse than previous exceeding a ratio threshold 2