perf: optimize varbinview construction #8146
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CodSpeed HQ / CodSpeed Performance Analysis
succeeded
May 29, 2026
Performance Gate Passed
⚠️ 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.
⚠️ Different runtime environments detected
Some benchmarks with significant performance changes were compared across different runtime environments,
which may affect the accuracy of the results.
⚡ 7 improved benchmarks
✅ 1268 untouched benchmarks
Performance Changes
| Mode | Benchmark | BASE |
HEAD |
Efficiency | |
|---|---|---|---|---|---|
| ⚡ | Simulation | fsst_decompress_string |
3.5 ms | 3.1 ms | +11.53% |
| ⚡ | Simulation | chunked_canonicalize_into[(10, 10000, 16, 4)] |
5.9 ms | 5.3 ms | +12.23% |
| ⚡ | Simulation | canonicalize_compare[(10000, 16, 4)] |
704.7 µs | 640.5 µs | +10.03% |
| ⚡ | Simulation | chunked_into_canonical[(10, 10000, 16, 4)] |
5.9 ms | 5.3 ms | +12.13% |
| ⚡ | Simulation | decompress_fsst[(10000, 4, 4)] |
388.3 µs | 352.7 µs | +10.09% |
| ⚡ | Simulation | decompress_fsst[(10000, 16, 4)] |
579.4 µs | 514.8 µs | +12.56% |
| ⚡ | Simulation | decompress_fsst[(10000, 16, 8)] |
631.8 µs | 567.2 µs | +11.39% |
Tip
Curious why this is faster? Comment @codspeedbot explain why this is faster on this PR, or directly use the CodSpeed MCP with your agent.
Comparing claude/avx512-decode-benchmark-wRhkZ (fc6b839) with develop (73454db)
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