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Support creating accumulators with already derived dtypes - #9972

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connortsui20 merged 1 commit into
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rk/accumcombined
Sep 22, 2026
Merged

connortsui20 merged 1 commit into
developfrom
rk/accumcombined

Support creating accumulators with already derived dtypes

fe06585
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CodSpeed / CodSpeed Performance Analysis failed Sep 21, 2026 in 0s

Performance Regression: -6.29%

⚠️ 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.

⚡ 3 improved benchmarks
❌ 7 regressed benchmarks
✅ 2198 untouched benchmarks
⏩ 293 skipped benchmarks1

Warning

Please fix the performance issues or acknowledge them on CodSpeed.

Performance Changes

Mode Benchmark BASE HEAD Efficiency
Simulation decode_primitives[f32, (1000, 512)] 42 µs 64.3 µs -34.74%
WallTime dbp_assemble_kernel_avx2[(I128, 1024)] 464 ns 569 ns -18.45%
WallTime dbp_assemble_kernel_avx512[(I128, 1024)] 463 ns 549 ns -15.66%
Simulation take_fsl_u32_random[64, 100] 158.8 µs 187.2 µs -15.17%
WallTime filtered_owned_i64_avx2[OneNullInEight] 22.6 µs 25.8 µs -12.46%
Simulation take_fsl_f16_random[256, 100] 204.9 µs 231.1 µs -11.32%
WallTime dbp_assemble_kernel_narrow_msp_avx2[(I128, 1024)] 629 ns 705 ns -10.78%
Simulation take_fsl_f16_random[16, 100] 179.5 µs 120 µs +49.61%
WallTime filtered_sink_i64_avx2[OneNullInEight] 26.2 µs 22.3 µs +17.09%
Simulation take_fsl_nullable_random[16, 100] 188 µs 166.3 µs +13.04%

Tip

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Comparing rk/accumcombined (fe06585) with develop (a542cbd)

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Footnotes

  1. 293 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.