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Benchmark reporting improvements (better engine-specific comparison, better file size comparison) #8123

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Benchmark reporting improvements (better engine-specific comparison, better file size comparison) #8123

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CodSpeed HQ / CodSpeed Performance Analysis failed May 27, 2026

1 benchmark regressed

⚠️ Unknown Walltime execution environment detected

Using the Walltime instrument on standard Hosted Runners will lead to inconsistent data.

For the most accurate results, we recommend using CodSpeed Macro Runners: bare-metal machines fine-tuned for performance measurement consistency.

⚡ 1 improved benchmark
❌ 1 regressed benchmark
✅ 1264 untouched benchmarks

Warning

Please fix the performance issues or acknowledge them on CodSpeed.

Performance Changes

Mode Benchmark BASE HEAD Efficiency
⚡ Simulation chunked_varbinview_opt_canonical_into[(1000, 10)] 225.1 µs 187.8 µs +19.84%
❌ Simulation chunked_varbinview_canonical_into[(100, 100)] 273.1 µs 307.8 µs -11.27%

Tip

Investigate this regression by commenting @codspeedbot fix this regression on this PR, or directly use the CodSpeed MCP with your agent.

Comparing adamg/engine-level-analysis (672a27e) with develop (9e5ed2e)

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