perf(datafusion): push down list_length expression#8600
Performance Regression: -0.81%
⚠️ 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.
⚡ 3 improved benchmarks
❌ 4 regressed benchmarks
✅ 1588 untouched benchmarks
⏩ 4 skipped benchmarks1
Warning
Please fix the performance issues or acknowledge them on CodSpeed.
Performance Changes
| Mode | Benchmark | BASE |
HEAD |
Efficiency | |
|---|---|---|---|---|---|
| ❌ | Simulation | bitwise_not_vortex_buffer_mut[128] |
186.1 ns | 215.3 ns | -13.55% |
| ❌ | Simulation | chunked_varbinview_canonical_into[(100, 100)] |
224.5 µs | 259.6 µs | -13.51% |
| ❌ | Simulation | chunked_varbinview_into_canonical[(100, 100)] |
271.1 µs | 306.3 µs | -11.51% |
| ❌ | Simulation | bitwise_not_vortex_buffer_mut[1024] |
246.4 ns | 275.6 ns | -10.58% |
| ⚡ | Simulation | chunked_varbinview_into_canonical[(1000, 10)] |
205.5 µs | 168.8 µs | +21.72% |
| ⚡ | WallTime | cuda/bitpacked_u8/unpack/3bw[100M] |
349.2 µs | 299.4 µs | +16.63% |
| ⚡ | Simulation | rebuild_naive |
111 µs | 98.6 µs | +12.5% |
Tip
Investigate this regression by commenting @codspeedbot fix this regression on this PR, or directly use the CodSpeed MCP with your agent.
Comparing mk/datafusion-list-length-pushdown (2083090) with mk/list-length (f4b87bb)
Footnotes
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4 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. ↩