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Reuse compression/decompression results in compression benchmarks - #9744

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rk/compressionbench
Open

Reuse compression/decompression results in compression benchmarks#9744
robert3005 wants to merge 3 commits into
developfrom
rk/compressionbench

Clear cached array stats between compression iterations

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CodSpeed HQ / CodSpeed Performance Analysis succeeded Sep 4, 2026 in 0s

Performance Gate Passed

⚠️ 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.

Open the report in CodSpeed to investigate

⚡ 4 improved benchmarks
✅ 2195 untouched benchmarks
⏩ 206 skipped benchmarks1

Performance Changes

Mode Benchmark BASE HEAD Efficiency
WallTime arrow_checked_add_u32_neon[16384] 20.4 µs 12.8 µs +59.98%
WallTime arrow_checked_add_u32_avx2[16384] 21.3 µs 17.6 µs +20.68%
WallTime words_gather_scalar_avx2[65536] 9.3 µs 8.2 µs +13.46%
Simulation allocate_drop_arrow[0] 456.9 ns 402.7 ns +13.45%

Tip

Curious why performance improved? Comment @codspeedbot explain why performance improved on this PR, or directly use the CodSpeed MCP with your agent.


Comparing rk/compressionbench (d889616) with develop (3170657)

Open in CodSpeed

Footnotes

  1. 206 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.