Refactor read driver as an explicit stream - #9395
Merged
Merged
CodSpeed HQ / CodSpeed Performance Analysis
failed
Aug 13, 2026 in 0s
1 benchmark regressed
⚡ 4 improved benchmarks
❌ 1 regressed benchmark
✅ 1957 untouched benchmarks
⏩ 121 skipped benchmarks1
Warning
Please fix the performance issues or acknowledge them on CodSpeed.
Performance Changes
| Mode | Benchmark | BASE |
HEAD |
Efficiency | |
|---|---|---|---|---|---|
| ❌ | Simulation | optimize_or_chain[200] |
546.8 µs | 1,177.4 µs | -53.56% |
| ⚡ | Simulation | compact_sliced[(16384, 10)] |
2 ms | 1.5 ms | +37.48% |
| ⚡ | Simulation | compact_sliced[(4096, 10)] |
528.6 µs | 391.6 µs | +34.99% |
| ⚡ | Simulation | take[small_m/shuffled/primitive/nonnull/chunks=16384/indices=16] |
1.2 ms | 1 ms | +13.21% |
| ⚡ | Simulation | eq_pushdown_low_match |
1.6 ms | 1.4 ms | +11.06% |
Tip
Investigate this regression by commenting @codspeedbot fix this regression on this PR, or directly use the CodSpeed MCP with your agent.
Comparing ji/read-ranges-state-machine (c3f5d45) with ji/read-ranges (0a48a0c)
Footnotes
-
121 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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