Use cursor copies for PiecewiseSequence slices#8832
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CodSpeed HQ / CodSpeed Performance Analysis
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Jul 20, 2026 in 0s
2 benchmarks regressed
⚡ 1 improved benchmark
❌ 2 regressed benchmarks
✅ 1795 untouched benchmarks
⏩ 44 skipped benchmarks1
Warning
Please fix the performance issues or acknowledge them on CodSpeed.
Performance Changes
| Mode | Benchmark | BASE |
HEAD |
Efficiency | |
|---|---|---|---|---|---|
| ❌ | Simulation | compact[(4096, 90)] |
780.3 ns | 867.8 ns | -10.08% |
| ❌ | Simulation | true_count_vortex_buffer[128] |
522.2 ns | 580.6 ns | -10.05% |
| ⚡ | Simulation | copy_nullable[65536] |
1.4 ms | 1 ms | +31.91% |
Tip
Investigate this regression by commenting @codspeedbot fix this regression on this PR, or directly use the CodSpeed MCP with your agent.
Comparing codex/piecewise-sequence-cursor-copy (87f6283) with codex/piecewise-sequence-varbin-take (5d31540)
Footnotes
-
44 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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