# :warning: **Performance Alert** :warning: Possible performance regression was detected for benchmark **'snarkVM Benchmarks'**. Benchmark result of this commit is worse than the previous benchmark result exceeding threshold `1.50`. | Benchmark suite | Current: 12dd2bab970fdfbb117212d283a485bb6fe9717d | Previous: 5f551f7a4250ea467bf4d16c83426e10f3dede6d | Ratio | |-|-|-|-| | `MerkleTree/update_many/10000/100` | `27595827` ns/iter (`± 12840`) | `14105559` ns/iter (`± 57875`) | `1.96` | | `MerkleTree/update_many/10000/1000` | `118490897` ns/iter (`± 2358265`) | `56537317` ns/iter (`± 280652`) | `2.10` | | `Subdag::to_bytes_le` | `279590` ns/iter (`± 979`) | `155769` ns/iter (`± 156`) | `1.79` | | `Subdag::serialize (bincode)` | `559595` ns/iter (`± 5133`) | `307876` ns/iter (`± 261`) | `1.82` | | `Subdag::to_string (serde_json)` | `376276` ns/iter (`± 1763`) | `227332` ns/iter (`± 137`) | `1.66` | This comment was automatically generated by [workflow](https://github.com/ProvableHQ/snarkVM/actions?query=workflow%3ARun%20snarkVM%20Benchmarks) using [github-action-benchmark](https://github.com/marketplace/actions/continuous-benchmark). CC: @vicsn Comment was generated at https://github.com/ProvableHQ/snarkVM/commit/12dd2bab970fdfbb117212d283a485bb6fe9717d#commitcomment-186558253

Node.js 20 actions are deprecated. The following actions are running on Node.js 20 and may not work as expected: actions/cache@v4. Actions will be forced to run with Node.js 24 by default starting June 2nd, 2026. Node.js 20 will be removed from the runner on September 16th, 2026. Please check if updated versions of these actions are available that support Node.js 24. To opt into Node.js 24 now, set the FORCE_JAVASCRIPT_ACTIONS_TO_NODE24=true environment variable on the runner or in your workflow file. Once Node.js 24 becomes the default, you can temporarily opt out by setting ACTIONS_ALLOW_USE_UNSECURE_NODE_VERSION=true. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/

Performance alert! Previous value was 227332 and current value is 376276. It is 1.6551827283444478x worse than previous exceeding a ratio threshold 1.5

Performance alert! Previous value was 307876 and current value is 559595. It is 1.8175986436097649x worse than previous exceeding a ratio threshold 1.5

Performance alert! Previous value was 155769 and current value is 279590. It is 1.7949014245453203x worse than previous exceeding a ratio threshold 1.5

Performance alert! Previous value was 56537317 and current value is 118490897. It is 2.095799788306191x worse than previous exceeding a ratio threshold 1.5