CLI flag to enable tracing for benchmarks #6350
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CodSpeed HQ / CodSpeed Performance Analysis
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Feb 7, 2026 in 0s
Performance Regression: -98.62%
Summary
⚡ 24 improved benchmarks
❌ 26 regressed benchmarks
✅ 1088 untouched benchmarks
⏩ 1265 skipped benchmarks1
⚠️ Please fix the performance issues or acknowledge them on CodSpeed.
Performance Changes
| Mode | Benchmark | BASE |
HEAD |
Efficiency | |
|---|---|---|---|---|---|
| ⚡ | Simulation | take_fsl_random[64, 100] |
152.6 µs | 83.4 µs | +82.86% |
| ❌ | Simulation | bench_many_nulls[0.9] |
469.4 µs | 535.1 µs | -12.28% |
| ⚡ | Simulation | take_fsl_nullable_random[1024, 1000] |
22.6 ms | 8.9 ms | ×2.5 |
| ⚡ | Simulation | take_fsl_nullable_random[16, 100] |
123.2 µs | 109.4 µs | +12.7% |
| ⚡ | Simulation | take_fsl_nullable_random[256, 1000] |
4.7 ms | 2.2 ms | ×2.2 |
| ⚡ | Simulation | take_fsl_nullable_random[256, 100] |
526 µs | 261.4 µs | ×2 |
| ⚡ | Simulation | take_fsl_nullable_random[1024, 100] |
1,987.4 µs | 929.1 µs | ×2.1 |
| ⚡ | Simulation | take_fsl_nullable_random[4096, 1000] |
90.8 ms | 35.3 ms | ×2.6 |
| ⚡ | Simulation | take_fsl_nullable_random[4096, 100] |
8.1 ms | 3.6 ms | ×2.3 |
| ⚡ | Simulation | take_fsl_nullable_random[16, 1000] |
399.7 µs | 219.9 µs | +81.73% |
| ⚡ | Simulation | take_fsl_nullable_random[64, 100] |
166.1 µs | 100 µs | +66.06% |
| ⚡ | Simulation | take_fsl_nullable_random[64, 1000] |
1,265.9 µs | 609.7 µs | ×2.1 |
| ⚡ | Simulation | take_fsl_random[16, 100] |
60.6 µs | 42.2 µs | +43.6% |
| ⚡ | Simulation | take_fsl_random[16, 1000] |
367.4 µs | 178.6 µs | ×2.1 |
| ⚡ | Simulation | take_fsl_random[4096, 100] |
8.2 ms | 3.6 ms | ×2.3 |
| ⚡ | Simulation | take_fsl_random[1024, 100] |
1,992.8 µs | 913 µs | ×2.2 |
| ⚡ | Simulation | take_fsl_random[1024, 1000] |
23 ms | 8.9 ms | ×2.6 |
| ⚡ | Simulation | take_fsl_random[256, 100] |
520.5 µs | 249 µs | ×2.1 |
| ⚡ | Simulation | take_fsl_random[256, 1000] |
4.9 ms | 2.3 ms | ×2.2 |
| ⚡ | Simulation | take_fsl_random[4096, 1000] |
92.7 ms | 35.5 ms | ×2.6 |
| ... | ... | ... | ... | ... | ... |
ℹ️ Only the first 20 benchmarks are displayed. Go to the app to view all benchmarks.
Footnotes
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1265 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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