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Invert layout writers to push API - #9423

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ngates/push-layout-writer
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Invert layout writers to push API#9423
gatesn wants to merge 4 commits into
developfrom
ngates/push-layout-writer

Propagate bounded writer backpressure

2b83616
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CodSpeed HQ / CodSpeed Performance Analysis failed Aug 15, 2026 in 0s

Performance Regression: -6.91%

⚠️ 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
❌ 2 regressed benchmarks
✅ 2040 untouched benchmarks
⏩ 46 skipped benchmarks1

Warning

Please fix the performance issues or acknowledge them on CodSpeed.

Performance Changes

Mode Benchmark BASE HEAD Efficiency
Simulation cold_misaligned[(64, 256)] 4.4 ms 5.5 ms -19.86%
Simulation take[small_m/shuffled/primitive/nonnull/chunks=16384/indices=16] 1.1 ms 1.2 ms -11.12%
WallTime words_gather_scalar[65536] 9.4 µs 8.3 µs +13.27%

Tip

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


Comparing ngates/push-layout-writer (2b83616) with develop (b363fb7)

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Footnotes

  1. 46 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.