[robert3005]

after #10762 we can further split expressions into vortex-expr. We flip dependency order into vortex-array → vortex-expr → vortex-functions.

[codspeed]

Merging this PR will degrade performance by 0.54%

4 warnings, 1 note

⚠️ Walltime results may be unreliable

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

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⚠️ Unable to measure the execution of 2 benchmarks

These benchmarks measured no execution time, so their results are not comparable and count as unchanged. This usually happens when the compiler removes the code under test.

Prevent compiler optimizations

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⚠️ 18 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

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⚠️ 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

ℹ️ 40 benchmarks have no flamegraph

The flamegraph wasn't generated: the symbols of the profiling trace could not be resolved, because no information about the language frames was collected.

See affected benchmarks

⚡ 9 improved benchmarks
❌ 4 regressed benchmarks
✅ 2525 untouched benchmarks
🆕 3 new benchmarks
⏩ 81 skipped benchmarks¹
🗄️ 45 archived benchmarks run²

Warning

Please fix the performance issues or acknowledge them on CodSpeed.

Performance Changes

	Mode	Benchmark	BASE	HEAD	Efficiency
❌	Walltime	mul_u64_nonnull_neon	20.7 µs	39.7 µs	-47.88%
❌	CPU Simulation	chunked_dict_primitive_canonical_into[f64, (1000, 1000, 10)]	153.7 µs	192.1 µs	-20.01%
❌	CPU Simulation	filter_random_by_mostly_false[10000]	3.7 µs	4.6 µs	-18.63%
❌	Walltime	threshold_avx512[80]	2.5 µs	2.8 µs	-10.99%
⚡	CPU Simulation	missing_stats[16]	85.8 µs	72.3 µs	+18.68%
⚡	Walltime	starts_with_avx512[8, VarBin]	46.2 µs	39.4 µs	+17.04%
⚡	Walltime	bitpack_blocked_compress_avx2	7.6 µs	6.6 µs	+15.5%
⚡	Walltime	add_constant_shapes_neon[(32768, PerRowConstant)]	16.2 µs	14.3 µs	+12.94%
⚡	Walltime	add_constant_shapes_neon[(32768, ConstantPerRow)]	16.3 µs	14.4 µs	+12.77%
⚡	CPU Simulation	test_scan_filter[int]	3.4 ms	3.1 ms	+12.33%
⚡	CPU Simulation	compare[1]	133.9 µs	121 µs	+10.64%
⚡	Walltime	add_constant_shapes_neon[(32768, PerRowNullableConstant)]	16.6 µs	15 µs	+10.51%
⚡	CPU Simulation	bench_compare_sliced_dict_primitive[(3333, 10000)]	75.2 µs	68.4 µs	+10.05%
🆕	CPU Simulation	pack_return_dtype[200]	N/A	326 µs	N/A
🆕	CPU Simulation	pack_return_dtype[350]	N/A	574.4 µs	N/A
🆕	CPU Simulation	optimize_or_chain[200]	N/A	731.5 µs	N/A

Tip

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

---

_{Comparing rk/split-array-07-expr (b691d5a) with rk/split-array-06-scalar-fns (fd2bbf1)}

Footnotes

1. 81 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. 45 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. ↩