Performance Regression: -2.58%
⚠️ 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.
⚡ 4 improved benchmarks
❌ 4 regressed benchmarks
✅ 2245 untouched benchmarks
⏩ 218 skipped benchmarks1
Warning
Please fix the performance issues or acknowledge them on CodSpeed.
Performance Changes
| Mode | Benchmark | BASE |
HEAD |
Efficiency | |
|---|---|---|---|---|---|
| ❌ | WallTime | arrow_checked_add_u32_neon[16384] |
12.3 µs | 20.3 µs | -39.52% |
| ❌ | Simulation | decompress[u64, (4000, 1024)] |
71.2 µs | 86.6 µs | -17.79% |
| ❌ | WallTime | dbp_split_kernel_mixed_null_neon[(I256, 1024)] |
1.9 µs | 2.2 µs | -12.26% |
| ❌ | Simulation | allocate_drop_arrow[0] |
462.3 ns | 516.4 ns | -10.49% |
| ⚡ | Simulation | decode_primitives[f32, (1000, 512)] |
64.2 µs | 42 µs | +52.92% |
| ⚡ | WallTime | mul_u32_nonnull_avx512 |
6.3 µs | 5.6 µs | +11.87% |
| ⚡ | Simulation | allocate_drop_bytes[0] |
581.3 ns | 527.2 ns | +10.27% |
| ⚡ | Simulation | decompress[u64, (4000, 4)] |
139.5 µs | 126.7 µs | +10.1% |
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-stack-06-v2-wire (db2c61b) with mk/bitpacked-stack-05-explicit-packing (e1be4ab)2
Footnotes
-
218 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. ↩
-
No successful run was found on
mk/bitpacked-stack-05-explicit-packing(120d3bd) during the generation of this report, so b0294a3 was used instead as the comparison base. There might be some changes unrelated to this pull request in this report. ↩