CodSpeed HQ / CodSpeed Performance Analysis
failed
Aug 6, 2026
Performance Regression: -15.34%
⚠️ Different runtime environments detected
Some benchmarks with significant performance changes were compared across different runtime environments,
which may affect the accuracy of the results.
❌ 3 regressed benchmarks
✅ 1922 untouched benchmarks
⏩ 51 skipped benchmarks1
Warning
Please fix the performance issues or acknowledge them on CodSpeed.
Performance Changes
| Mode | Benchmark | BASE |
HEAD |
Efficiency | |
|---|---|---|---|---|---|
| ❌ | Simulation | decode_varbin[(1000, 2)] |
61 µs | 77.3 µs | -21.05% |
| ❌ | Simulation | decompress[u64, (10000, 4)] |
311.7 µs | 361.1 µs | -13.67% |
| ❌ | Simulation | compress_fsst[(1000, 64, 8)] |
1 ms | 1.2 ms | -10.96% |
Tip
Investigate this regression by commenting @codspeedbot fix this regression on this PR, or directly use the CodSpeed MCP with your agent.
Comparing mp/ssb (f540b24) with develop (a1057db)
Footnotes
-
51 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports. ↩
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