fix: [profile.bench] codegen-units = 16#8257
Merged
Merged
CodSpeed HQ / CodSpeed Performance Analysis
failed
Jun 4, 2026
Performance Regression: -16.24%
⚠️ 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.
⚡ 12 improved benchmarks
❌ 147 regressed benchmarks
✅ 1348 untouched benchmarks
Warning
Please fix the performance issues or acknowledge them on CodSpeed.
Performance Changes
| Mode | Benchmark | BASE |
HEAD |
Efficiency | |
|---|---|---|---|---|---|
| ❌ | Simulation | from_iter_bit_buffer[65536] |
113.4 µs | 241.3 µs | -52.99% |
| ❌ | Simulation | from_iter_bit_buffer[16384] |
32.4 µs | 64.7 µs | -49.92% |
| ❌ | Simulation | from_iter_bit_buffer[2048] |
7.8 µs | 12.2 µs | -36.03% |
| ❌ | Simulation | chunked_varbinview_canonical_into[(100, 100)] |
269.9 µs | 398.9 µs | -32.33% |
| ❌ | Simulation | chunked_varbinview_canonical_into[(1000, 10)] |
197.1 µs | 284.6 µs | -30.76% |
| ❌ | Simulation | binary_search_vortex |
486.1 ns | 698.6 ns | -30.42% |
| ❌ | Simulation | chunked_varbinview_into_canonical[(100, 100)] |
320.1 µs | 457.3 µs | -29.99% |
| ❌ | Simulation | chunked_varbinview_into_canonical[(1000, 10)] |
211.7 µs | 300.7 µs | -29.59% |
| ❌ | Simulation | from_iter_bit_buffer[1024] |
6.2 µs | 8.6 µs | -28.12% |
| ❌ | Simulation | chunked_varbinview_opt_canonical_into[(1000, 10)] |
223.9 µs | 308.4 µs | -27.4% |
| ❌ | Simulation | compare[62] |
316.8 µs | 432.3 µs | -26.71% |
| ❌ | Simulation | compare[63] |
322.5 µs | 439.8 µs | -26.68% |
| ❌ | Simulation | compare[60] |
308.5 µs | 420.3 µs | -26.59% |
| ❌ | Simulation | compare[56] |
292.6 µs | 396.8 µs | -26.27% |
| ❌ | Simulation | chunked_varbinview_opt_into_canonical[(1000, 10)] |
239 µs | 323.9 µs | -26.23% |
| ❌ | Simulation | compare[61] |
318.2 µs | 431.3 µs | -26.22% |
| ❌ | Simulation | compare[58] |
307.8 µs | 415.7 µs | -25.96% |
| ❌ | Simulation | compare[59] |
313 µs | 422.8 µs | -25.96% |
| ❌ | Simulation | varbinview_large |
130.5 µs | 175.4 µs | -25.6% |
| ❌ | Simulation | compare[57] |
308.9 µs | 414.6 µs | -25.49% |
| ... | ... | ... | ... | ... | ... |
ℹ️ Only the first 20 benchmarks are displayed. Go to the app to view all benchmarks.
Tip
Investigate this regression by commenting @codspeedbot fix this regression on this PR, or directly use the CodSpeed MCP with your agent.
Comparing ji/bench-fix (a248249) with develop (583b003)
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