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Compare Vortex GPU decompression against a cuDF Parquet read - #9147

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joseph-isaacs merged 26 commits into
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claude/gpu-decompress-benchmarks-4mmn93
Aug 19, 2026
Merged

Compare Vortex GPU decompression against a cuDF Parquet read#9147
joseph-isaacs merged 26 commits into
developfrom
claude/gpu-decompress-benchmarks-4mmn93

Publish the GPU benchmark through the shared comparison renderer

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CodSpeed HQ / CodSpeed Performance Analysis failed Aug 19, 2026

Performance Regression: -1.45%

⚠️ 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.

⚡ 1 improved benchmark
❌ 1 regressed benchmark
✅ 1997 untouched benchmarks
⏩ 474 skipped benchmarks1

Warning

Please fix the performance issues or acknowledge them on CodSpeed.

Performance Changes

Mode Benchmark BASE HEAD Efficiency
WallTime words_gather_scalar[65536] 8.3 µs 9.4 µs -12.09%
Simulation compress_fsst[(500, 64, 8)] 580.5 µs 525.5 µs +10.48%

Tip

Investigate this regression by commenting @codspeedbot fix this regression on this PR, or directly use the CodSpeed MCP with your agent.


Comparing claude/gpu-decompress-benchmarks-4mmn93 (76cbd11) with develop (0a9f0bb)

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Footnotes

  1. 474 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.