Lambda and Variable Expressions and BoundExpressions - #9250
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CodSpeed HQ / CodSpeed Performance Analysis
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Aug 7, 2026
Performance Regression: -13.01%
⚡ 2 improved benchmarks
❌ 2 regressed benchmarks
✅ 1921 untouched benchmarks
⏩ 51 skipped benchmarks1
Warning
Please fix the performance issues or acknowledge them on CodSpeed.
Performance Changes
| Mode | Benchmark | BASE |
HEAD |
Efficiency | |
|---|---|---|---|---|---|
| ❌ | Simulation | decompress[u64, (1000, 16)] |
72.5 µs | 133.5 µs | -45.67% |
| ❌ | Simulation | fsl_large |
198 µs | 239.7 µs | -17.39% |
| ⚡ | Simulation | slice_primitive_tight_loop[10000] |
495.2 µs | 427.3 µs | +15.88% |
| ⚡ | Simulation | chunked_varbin_opt_to_varbinview_builder[(10, 100)] |
857.9 µs | 779.3 µs | +10.08% |
Tip
Investigate this regression by commenting @codspeedbot fix this regression on this PR, or directly use the CodSpeed MCP with your agent.
Comparing mk/lambda-variables (e41b484) with mk/bound-expression-enum (93a164f)
Footnotes
-
51 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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