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Add BlockedFoR encoding backed by BitPackedV2 - #9678

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Add BlockedFoR encoding backed by BitPackedV2#9678
joseph-isaacs wants to merge 1 commit into
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Add BlockedFoR encoding backed by BitPackedV2

ada4bbf
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CodSpeed HQ / CodSpeed Performance Analysis failed Aug 27, 2026

Performance Regression: -0.22%

⚠️ 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

⚡ 1 improved benchmark
❌ 1 regressed benchmark
✅ 2137 untouched benchmarks
⏩ 106 skipped benchmarks1
🗄️ 4 archived benchmarks run2

Warning

Please fix the performance issues or acknowledge them on CodSpeed.

Performance Changes

Mode Benchmark BASE HEAD Efficiency
Simulation compress_fsst[(500, 64, 8)] 481.1 µs 537.8 µs -10.56%
WallTime mul_u32_nonnull_avx512 6.3 µs 5.7 µs +11.32%

Tip

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


Comparing ji/blocked-for-v2-stack (ada4bbf) with develop (ba90f3d)3

Open in CodSpeed

Footnotes

  1. 106 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.

  2. 4 benchmarks were run, but are now archived. If they were deleted in another branch, consider rebasing to remove them from the report. Instead if they were added back, click here to restore them.

  3. No successful run was found on ji/bitpacked-v2-patches (f4d3659) during the generation of this report, so develop (ba90f3d) was used instead as the comparison base. There might be some changes unrelated to this pull request in this report.