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Merging this PR will regress 1 benchmark
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| Mode | Benchmark | BASE |
HEAD |
Efficiency | |
|---|---|---|---|---|---|
| ❌ | Simulation | random_i16[0.8] |
79.4 µs | 97.8 µs | -18.85% |
| ⚡ | WallTime | arrow_checked_add_u32_neon[16384] |
20.4 µs | 12.3 µs | +65.71% |
| ⚡ | Simulation | random_i8[0.5] |
96 µs | 72.4 µs | +32.52% |
| ⚡ | WallTime | words_gather_scalar_avx2[65536] |
9.4 µs | 8.2 µs | +13.66% |
| ⚡ | WallTime | mul_u32_nonnull_avx512 |
6.3 µs | 5.6 µs | +11.51% |
Tip
Investigate this regression by commenting @codspeedbot fix this regression on this PR, or directly use the CodSpeed MCP with your agent.
Comparing mk/bitpacked-stack-02-cpu-layout (7390ffe) with mk/bitpacked-stack-01-wire-boundary (950de57)2
Footnotes
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218 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. ↩
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No successful run was found on
mk/bitpacked-stack-01-wire-boundary(9681199) during the generation of this report, so 79c6922 was used instead as the comparison base. There might be some changes unrelated to this pull request in this report. ↩
Signed-off-by: "Matt Katz" <mhkatz97@gmail.com>
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Introduce an operation-local chunk layout and route CPU decoding, scalar access, take, filter, comparisons, and FoR through it. Arrays and encoders still use one uniform width; this prepares the kernels to address independently packed chunks.
Part 2/9 of the bitpacked-v2 stack (532 added + removed lines). Merge in order; each draft targets the preceding branch, starting from
develop.1 → 2 → 3 → 4 → 5 → 6 → 7 → 8 → 9
Validation: All 5 focused plugin, serde, and chunk-layout tests passed on this commit, including the regression that rejects direct vtable serde. Changed Rust files were formatted with nightly;
git diff --checkpassed.