Add bit-packed cast benchmark #8058
Merged
CodSpeed HQ / CodSpeed Performance Analysis
failed
May 22, 2026 in 0s
Performance Regression: -1.69%
⚠️ 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.
⚡ 2 improved benchmarks
❌ 1 regressed benchmark
✅ 1234 untouched benchmarks
🆕 6 new benchmarks
Warning
Please fix the performance issues or acknowledge them on CodSpeed.
Performance Changes
| Mode | Benchmark | BASE |
HEAD |
Efficiency | |
|---|---|---|---|---|---|
| ⚡ | Simulation | baseline_eq[16, 65536] |
287.6 µs | 259.6 µs | +10.75% |
| ⚡ | Simulation | baseline_lt[16, 65536] |
302.7 µs | 274.8 µs | +10.16% |
| 🆕 | Simulation | cast_execute[(262144, 1, 0.0)] |
N/A | 1.9 ms | N/A |
| 🆕 | Simulation | cast_execute[(262144, 1, 0.01)] |
N/A | 1.9 ms | N/A |
| 🆕 | Simulation | cast_execute[(65536, 1, 0.0)] |
N/A | 517.6 µs | N/A |
| 🆕 | Simulation | cast_execute[(65536, 1, 0.01)] |
N/A | 525.8 µs | N/A |
| 🆕 | Simulation | cast_execute[(65536, 4, 0.0)] |
N/A | 2.8 ms | N/A |
| 🆕 | Simulation | cast_execute[(65536, 4, 0.01)] |
N/A | 2.8 ms | N/A |
| ❌ | Simulation | fast_lt_out_of_range[4, 65536] |
204.3 µs | 262.3 µs | -22.12% |
Tip
Investigate this regression by commenting @codspeedbot fix this regression on this PR, or directly use the CodSpeed MCP with your agent.
Comparing codex/cast-bitpacked-benchmark (05a73b7) with develop (012d0ec)
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