[robert3005]

The filter kernels for fixed-width values (SIMD compress, byte compress, run copy, index gather, and the bitmap walk) do not depend on arrays. This change moves them from vortex-array to a new vortex_buffer::filter module, so that crates that use only buffers can filter values without vortex-array.

[codspeed]

Merging this PR will degrade performance by 8.04%

3 warnings

⚠️ Walltime results may be unreliable

Some benchmarks used the Walltime instrument outside CodSpeed Macro Runners, which can make the results inconsistent.

Learn more about Macro Runners

See affected benchmarks

⚠️ 3 benchmarks are dominated by system calls

System calls cannot be simulated consistently and are left out of the measure. The reported value understates the real cost. Switch to the Walltime instrument to measure them.

Learn more about system calls

See affected benchmarks

⚠️ Base and head ran on different runner types

Some benchmarks with significant performance changes were compared across different runner types, so the changes might not come from the code. Run base and head on the same runner type, or use CodSpeed Macro Runners for more stable results.

Learn more about Macro Runners

Open the report in CodSpeed to investigate

⚡ 10 improved benchmarks
❌ 7 regressed benchmarks
✅ 2253 untouched benchmarks
⏩ 370 skipped benchmarks¹
🗄️ 30 archived benchmarks run²

Warning

Please fix the performance issues or acknowledge them on CodSpeed.

Performance Changes

	Mode	Benchmark	BASE	HEAD	Efficiency
❌	CPU Simulation	filter_powerlaw_by_random[10000]	531.1 ns	1,179.2 ns	-54.96%
❌	Walltime	mul_u64_nonnull_neon	20.5 µs	39.7 µs	-48.4%
❌	CPU Simulation	random_i8[0.01]	98.8 µs	147.2 µs	-32.89%
❌	CPU Simulation	filter_list_primitive_wide[EdgeSpanning]	829.2 µs	1,185.2 µs	-30.04%
❌	CPU Simulation	filter_list_primitive_wide[Repeated]	1.9 ms	2.3 ms	-16.17%
❌	CPU Simulation	take_filter_primitive_small_uncached_random_mask_random_indices[4096, 10]	19.9 µs	23.4 µs	-15.11%
❌	Walltime	starts_with_avx2[8, VarBinView]	73 µs	85.5 µs	-14.67%
⚡	CPU Simulation	bench_compare_varbin[(50000, 2)]	162.8 µs	133.2 µs	+22.22%
⚡	CPU Simulation	bench_compare_varbin[(50000, 64)]	164.5 µs	134.9 µs	+21.93%
⚡	CPU Simulation	bench_compare_sliced_dict_varbinview[(7500, 10000)]	228.7 µs	200.7 µs	+13.97%
⚡	CPU Simulation	bench_compare_sliced_dict_varbinview[(10000, 10000)]	235 µs	206.8 µs	+13.61%
⚡	CPU Simulation	bench_compare_sliced_dict_varbinview[(1000, 10000)]	90.3 µs	79.9 µs	+12.93%
⚡	Walltime	starts_with_avx2[64, VarBin]	62.3 µs	55.8 µs	+11.82%
⚡	Walltime	add_constant_shapes_neon[(32768, PerRowNullableConstant)]	16.3 µs	14.7 µs	+10.85%
⚡	CPU Simulation	filter_list_primitive_short[Repeated]	152.3 µs	137.6 µs	+10.66%
⚡	Walltime	add_constant_shapes_neon[(32768, ConstantPerRow)]	15.7 µs	14.3 µs	+10.22%
⚡	Walltime	add_constant_shapes_neon[(32768, PerRowConstant)]	15.7 µs	14.3 µs	+10.16%

Tip

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

---

_{Comparing rk/buffer-filter (d6bd74a) with develop (9bf403a)}

Footnotes

1. 370 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. 30 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. ↩