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Performance Regression: -11.59%
⚠️ 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 benchmarks measured no execution time
Nothing ran under measurement, usually because the compiler removed the code under test. These results are not comparable, so they count as unchanged.
❌ 1 regressed benchmark
✅ 2182 untouched benchmarks
🆕 6 new benchmarks
⏩ 409 skipped benchmarks1
Warning
Please fix the performance issues or acknowledge them on CodSpeed.
Performance Changes
| Mode | Benchmark | BASE |
HEAD |
Efficiency | |
|---|---|---|---|---|---|
| ❌ | WallTime | bitpack_blocked_compress_avx2 |
6.7 µs | 7.6 µs | -11.59% |
| 🆕 | WallTime | bitpack_blocked_decompress_avx512[u32] |
N/A | 9.4 µs | N/A |
| 🆕 | WallTime | bitpack_blocked_decompress_avx512[u64] |
N/A | 18.9 µs | N/A |
| 🆕 | WallTime | bitpack_blocked_decompress_avx2[u32] |
N/A | 10.8 µs | N/A |
| 🆕 | WallTime | bitpack_blocked_decompress_avx2[u64] |
N/A | 21.2 µs | N/A |
| 🆕 | WallTime | bitpack_blocked_decompress_neon[u32] |
N/A | 13.8 µs | N/A |
| 🆕 | WallTime | bitpack_blocked_decompress_neon[u64] |
N/A | 29.3 µs | N/A |
| Simulation | bench_compare_primitive[(10000, 2)] |
< 1 ns | < 1 ns | N/A | |
| Simulation | bench_compare_sliced_dict_primitive[(3333, 10000)] |
< 1 ns | < 1 ns | N/A |
Tip
Investigate this regression by commenting @codspeedbot fix this regression on this PR, or directly use the CodSpeed MCP with your agent.
Comparing mk/bitpacked-variable-decode (75fe6ef) with develop (c901cf7)
Footnotes
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409 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. ↩