Skip computation of expression return dtype unless there are no chunks to return #8045
+9
−3
CodSpeed HQ / CodSpeed Performance Analysis
failed
May 22, 2026 in 0s
Performance Regression: -1.66%
⚠️ Unknown Walltime execution environment detected
Using the Walltime instrument on standard Hosted Runners will lead to inconsistent data.
For the most accurate results, we recommend using CodSpeed Macro Runners: bare-metal machines fine-tuned for performance measurement consistency.
⚠️ Different runtime environments detected
Some benchmarks with significant performance changes were compared across different runtime environments,
which may affect the accuracy of the results.
⚡ 2 improved benchmarks
❌ 1 regressed benchmark
✅ 1240 untouched benchmarks
Warning
Please fix the performance issues or acknowledge them on CodSpeed.
Performance Changes
| Mode | Benchmark | BASE |
HEAD |
Efficiency | |
|---|---|---|---|---|---|
| ❌ | Simulation | fast_lt_out_of_range[4, 65536] |
204.4 µs | 262.3 µs | -22.09% |
| ⚡ | Simulation | baseline_eq[16, 65536] |
287.6 µs | 259.6 µs | +10.79% |
| ⚡ | Simulation | baseline_lt[16, 65536] |
302.7 µs | 274.7 µs | +10.19% |
Tip
Investigate this regression by commenting @codspeedbot fix this regression on this PR, or directly use the CodSpeed MCP with your agent.
Comparing rk/chunkedreader (473e383) with develop (dba7935)
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