Vectorize checked multiplication by reporting evidence, not a comparison - #9210
Merged
CodSpeed HQ / CodSpeed Performance Analysis
failed
Aug 5, 2026 in 0s
1 benchmark regressed
⚡ 3 improved benchmarks
❌ 1 regressed benchmark
✅ 1891 untouched benchmarks
⏩ 43 skipped benchmarks1
Warning
Please fix the performance issues or acknowledge them on CodSpeed.
Performance Changes
| Mode | Benchmark | BASE |
HEAD |
Efficiency | |
|---|---|---|---|---|---|
| ❌ | Simulation | decompress[u64, (1000, 16)] |
65.2 µs | 73.7 µs | -11.5% |
| ⚡ | Simulation | mul_u8_nonnull |
405.3 µs | 165.8 µs | ×2.4 |
| ⚡ | Simulation | mul_u16_nonnull |
501.5 µs | 269.7 µs | +85.94% |
| ⚡ | Simulation | mul_u32_nonnull |
722.3 µs | 487.3 µs | +48.24% |
Tip
Investigate this regression by commenting @codspeedbot fix this regression on this PR, or directly use the CodSpeed MCP with your agent.
Comparing ct/unsigned-mul-evidence (ec9c9b1) with develop (8316455)
Footnotes
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43 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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