# :warning: **Performance Alert** :warning: Possible performance regression was detected for benchmark. Benchmark result of this commit is worse than the previous benchmark result exceeding threshold `2`. | Benchmark suite | Current: a194fad63ea75d93e5fe5a4ef50029dccadc51c1 | Previous: 394f839e739e958bda967c10ea45b2f305cddac5 | Ratio | |-|-|-|-| | `iffts/simd ifft/21` | `6391904` ns/iter (`± 263122`) | `3131518` ns/iter (`± 173718`) | `2.04` | | `iffts/simd ifft/22` | `13347845` ns/iter (`± 219803`) | `6272224` ns/iter (`± 205833`) | `2.13` | | `iffts/simd ifft/26` | `261860084` ns/iter (`± 4208766`) | `130127722` ns/iter (`± 2059058`) | `2.01` | | `iffts/simd ifft/27` | `552325305` ns/iter (`± 42407901`) | `269533636` ns/iter (`± 2406787`) | `2.05` | | `merkle throughput/simd merkle` | `30699984` ns/iter (`± 315999`) | `13123349` ns/iter (`± 484950`) | `2.34` | This comment was automatically generated by [workflow](https://github.com/starkware-libs/stwo/actions?query=workflow%3ACI) using [github-action-benchmark](https://github.com/marketplace/actions/continuous-benchmark). CC: @shaharsamocha7 Comment was generated at https://github.com/starkware-libs/stwo/commit/a194fad63ea75d93e5fe5a4ef50029dccadc51c1#commitcomment-152161483

This job failure may be caused by using an out of date self-hosted runner. You are currently using runner version 2.321.0. Please update to the latest version 2.322.0

Performance alert! Previous value was 3131518 and current value is 6391904. It is 2.0411519269568306x worse than previous exceeding a ratio threshold 2

Performance alert! Previous value was 6272224 and current value is 13347845. It is 2.128088059355023x worse than previous exceeding a ratio threshold 2

Performance alert! Previous value was 130127722 and current value is 261860084. It is 2.0123312694277398x worse than previous exceeding a ratio threshold 2

Performance alert! Previous value was 269533636 and current value is 552325305. It is 2.049188788444942x worse than previous exceeding a ratio threshold 2