# :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: 101c4d503446a0fa59ef3a1aa3bd52a90c06cff9 | Previous: ab2ac8bb1c49bcb3eed6a6e965037adc8fb1319f | Ratio | |-|-|-|-| | `benchmark/benchmark.py::test_exact_shots[ghz-state_vector-12-braket_sv_v2]` | `49.57832936776054` iter/sec (`stddev: 0`) | `166.87688147415705` iter/sec (`stddev: 0`) | `3.37` | | `benchmark/benchmark.py::test_exact_shots[ghz-expectation z(q[0])-9-braket_dm_v2]` | `108.15697167412554` iter/sec (`stddev: 0`) | `230.16164298243365` iter/sec (`stddev: 0`) | `2.13` | | `benchmark/benchmark.py::test_exact_shots[ghz-expectation z(q[0])-15-braket_sv_v2]` | `98.76626319861404` iter/sec (`stddev: 0`) | `280.3307656341491` iter/sec (`stddev: 0`) | `2.84` | | `benchmark/benchmark.py::test_exact_shots[qft-state_vector-13-braket_sv_v2]` | `28.161423985785056` iter/sec (`stddev: 0`) | `65.74945735329604` iter/sec (`stddev: 0`) | `2.33` | | `benchmark/benchmark.py::test_exact_shots[qft-density_matrix q[0], q[1]-4-braket_dm]` | `43.5679919904651` iter/sec (`stddev: 0`) | `106.9900745521569` iter/sec (`stddev: 0`) | `2.46` | | `benchmark/benchmark.py::test_exact_shots[qft-expectation z(q[0])-8-braket_dm_v2]` | `90.17881304340641` iter/sec (`stddev: 0`) | `221.55188499207503` iter/sec (`stddev: 0`) | `2.46` | 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/commit/101c4d503446a0fa59ef3a1aa3bd52a90c06cff9#commitcomment-150119560

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 166.87688147415705 and current value is 49.57832936776054. It is 3.3659238542772x worse than previous exceeding a ratio threshold 2

Performance alert! Previous value was 230.16164298243365 and current value is 108.15697167412554. It is 2.128033352079285x worse than previous exceeding a ratio threshold 2

Performance alert! Previous value was 280.3307656341491 and current value is 98.76626319861404. It is 2.838325117863555x worse than previous exceeding a ratio threshold 2

Performance alert! Previous value was 65.74945735329604 and current value is 28.161423985785056. It is 2.3347348268498127x worse than previous exceeding a ratio threshold 2

Performance alert! Previous value was 106.9900745521569 and current value is 43.5679919904651. It is 2.4557035948678054x worse than previous exceeding a ratio threshold 2