feat(fastlanes): store a bit width per FastLanes chunk in BitPacked - #9750
feat(fastlanes): store a bit width per FastLanes chunk in BitPacked#9750mhk197 wants to merge 2 commits into
Performance Regression: -3.24%
⚠️ 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.
⚠️ Different runtime environments detected
Some benchmarks with significant performance changes were compared across different runtime environments,
which may affect the accuracy of the results.
⚡ 5 improved benchmarks
❌ 8 regressed benchmarks
✅ 2210 untouched benchmarks
🆕 160 new benchmarks
⏩ 164 skipped benchmarks1
🗄️ 1 archived benchmark run2
Warning
Please fix the performance issues or acknowledge them on CodSpeed.
Performance Changes
| Mode | Benchmark | BASE |
HEAD |
Efficiency | |
|---|---|---|---|---|---|
| ❌ | Simulation | bitpacked_compress_u32 |
36.8 µs | 53.6 µs | -31.35% |
| ❌ | Simulation | random_i8[0.5] |
66.8 µs | 90.7 µs | -26.32% |
| ❌ | Simulation | compress_rd[f64, (2000, 0.01)] |
169.3 µs | 194.1 µs | -12.8% |
| ❌ | Simulation | compress_rd[f64, (2000, 0.1)] |
169.2 µs | 194.1 µs | -12.8% |
| ❌ | Simulation | compress_rd[f64, (2000, 0.0)] |
169.2 µs | 194 µs | -12.77% |
| ❌ | Simulation | compress_rd[f32, (2000, 0.01)] |
138 µs | 157.4 µs | -12.33% |
| ❌ | Simulation | compress_rd[f32, (2000, 0.0)] |
138 µs | 157.4 µs | -12.29% |
| ❌ | Simulation | compress_rd[f32, (2000, 0.1)] |
138 µs | 157.3 µs | -12.24% |
| ⚡ | Simulation | random_i8[0.8] |
98.2 µs | 68.8 µs | +42.6% |
| ⚡ | Simulation | decompress[u64, (4000, 1024)] |
85.6 µs | 70.4 µs | +21.71% |
| ⚡ | WallTime | arrow_checked_add_u32_avx512[16384] |
21.3 µs | 17.6 µs | +21.05% |
| ⚡ | WallTime | arrow_checked_add_u32_avx2[16384] |
21.3 µs | 17.6 µs | +20.76% |
| ⚡ | Simulation | allocate_drop_arrow[0] |
456.9 ns | 402.7 ns | +13.45% |
| 🆕 | Simulation | compress_v1[u16, drift] |
N/A | 288.8 µs | N/A |
| 🆕 | Simulation | compress_v1[u16, drift+exc1%] |
N/A | 691.2 µs | N/A |
| 🆕 | Simulation | compress_v1[u16, drift+null10%] |
N/A | 516.2 µs | N/A |
| 🆕 | Simulation | compress_v1[u16, random] |
N/A | 293.5 µs | N/A |
| 🆕 | Simulation | compress_v1[u16, spiky] |
N/A | 748.5 µs | N/A |
| 🆕 | Simulation | compress_v1[u16, spiky+exc1%] |
N/A | 754.7 µs | N/A |
| 🆕 | Simulation | compress_v1[u16, uniform] |
N/A | 265.5 µs | N/A |
| ... | ... | ... | ... | ... | ... |
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 mk/bitpacked-v2 (dcd7e85) with develop (98a2c86)
Footnotes
-
164 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. ↩
-
1 benchmark was run, but is now archived. If it was deleted in another branch, consider rebasing to remove it from the report. Instead if it was added back, click here to restore it. ↩