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Add decimal benchmarks for DecimalByteParts, casts and exports - #10752

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Add decimal benchmarks for DecimalByteParts, casts and exports#10752
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ct/decimal-benchmarks

Add a decimal compress benchmark

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CodSpeed / CodSpeed Performance Analysis failed Oct 23, 2026 in 0s

4 benchmarks regressed

3 warnings, 1 note

⚠️ 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

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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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⚠️ 23 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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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.

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⚡ 3 improved benchmarks
❌ 4 regressed benchmarks
✅ 2401 untouched benchmarks
🆕 31 new benchmarks
⏩ 12 skipped benchmarks1

Warning

Please fix the performance issues or acknowledge them on CodSpeed.

Performance Changes

Mode Benchmark BASE HEAD Efficiency
❌ CPU Simulation test_scan_filter_to_arrow_array[int_float] 3.5 ms 4.1 ms -14.77%
❌ CPU Simulation test_repeated_scan_filter[int_float] 3.4 ms 3.9 ms -12.15%
❌ CPU Simulation test_repeated_scan_filter[int] 2.4 ms 2.7 ms -10.33%
❌ CPU Simulation test_scan_filter_to_arrow_array[int] 2.5 ms 2.8 ms -10.17%
⚡ CPU Simulation bench_compare_primitive[(10000, 32)] 97 µs 72.9 µs +33.16%
⚡ CPU Simulation chunked_dict_primitive_canonical_into[f64, (1000, 1000, 10)] 191.7 µs 151.7 µs +26.38%
⚡ Walltime starts_with_avx2[8, VarBin] 46.9 µs 41 µs +14.33%
🆕 CPU Simulation compare_constant_out_of_range[gap_msp_i16_p10] N/A 46 µs N/A
🆕 CPU Simulation compare_constant_out_of_range[msp_i32_p18] N/A 68 µs N/A
🆕 CPU Simulation compare_constant_out_of_range[msp_i64_p38] N/A 46 µs N/A
🆕 CPU Simulation compare_constant[gap_msp_i16_p10] N/A 90.5 µs N/A
🆕 CPU Simulation compare_constant[msp_i32_p18_nullable] N/A 105.6 µs N/A
🆕 CPU Simulation compare_constant[msp_i32_p18] N/A 125 µs N/A
🆕 CPU Simulation compare_constant[msp_i64_p18_canonical] N/A 131.8 µs N/A
🆕 CPU Simulation compare_constant[msp_i64_p38] N/A 132.2 µs N/A
🆕 CPU Simulation decode[gap_msp_i16_p10] N/A 22.4 µs N/A
🆕 CPU Simulation decode[msp_i32_p18_nullable] N/A 23.7 µs N/A
🆕 CPU Simulation decode[msp_i32_p18] N/A 22.5 µs N/A
🆕 CPU Simulation decode[msp_i64_p18_canonical] N/A 22.5 µs N/A
🆕 CPU Simulation decode[msp_i64_p38] N/A 22.5 µs N/A
... ... ... ... ... ...

ℹ️ Only the first 20 benchmarks are displayed. Go to the app to view all benchmarks.

Tip

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

Comparing ct/decimal-benchmarks (5778fab) with develop (3974ee0)

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Footnotes

  1. 12 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. ↩

View more details on CodSpeed