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CodSpeed HQ / CodSpeed Performance Analysis failed May 5, 2026 in 0s

Performance Regression: -21.4%

⚠️ 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.

⚡ 5 improved benchmarks
❌ 36 regressed benchmarks
✅ 1139 untouched benchmarks

⚠️ Please fix the performance issues or acknowledge them on CodSpeed.

Performance Changes

Mode Benchmark BASE HEAD Efficiency
❌ Simulation chunked_dict_primitive_into_canonical[u32, (1000, 10, 10)] 117.8 µs 138.3 µs -14.83%
❌ Simulation bench_compare_primitive[(10000, 128)] 103.3 µs 124.9 µs -17.29%
❌ Simulation bench_compare_primitive[(10000, 2)] 102.8 µs 123.6 µs -16.79%
❌ Simulation bench_compare_primitive[(10000, 2048)] 126.3 µs 148 µs -14.7%
❌ Simulation bench_compare_primitive[(10000, 32)] 103.1 µs 124 µs -16.88%
❌ Simulation bench_compare_primitive[(10000, 4)] 103.2 µs 123.9 µs -16.69%
❌ Simulation bench_compare_primitive[(10000, 512)] 111.7 µs 133.2 µs -16.15%
❌ Simulation bench_compare_primitive[(10000, 8)] 103 µs 123.7 µs -16.7%
❌ Simulation bench_compare_sliced_dict_primitive[(1000, 10000)] 76.8 µs 97.7 µs -21.4%
❌ Simulation bench_compare_sliced_dict_primitive[(10000, 10000)] 153 µs 173.3 µs -11.69%
❌ Simulation bench_compare_sliced_dict_primitive[(2000, 10000)] 81.6 µs 102.3 µs -20.22%
❌ Simulation bench_compare_sliced_dict_primitive[(2500, 10000)] 84.4 µs 105.2 µs -19.77%
❌ Simulation bench_compare_sliced_dict_primitive[(3333, 10000)] 88.9 µs 110.4 µs -19.48%
❌ Simulation bench_compare_sliced_dict_primitive[(5000, 10000)] 98.5 µs 119.2 µs -17.33%
❌ Simulation bench_compare_sliced_dict_primitive[(7500, 10000)] 136.4 µs 156.7 µs -12.96%
❌ Simulation bench_compare_sliced_dict_primitive[(9999, 10000)] 152.6 µs 173.3 µs -11.94%
❌ Simulation bench_compare_sliced_dict_varbinview[(1000, 10000)] 107.3 µs 128.4 µs -16.41%
❌ Simulation bench_compare_sliced_dict_varbinview[(2000, 10000)] 133.7 µs 154.4 µs -13.42%
❌ Simulation bench_compare_sliced_dict_varbinview[(2500, 10000)] 147.4 µs 168.3 µs -12.44%
❌ Simulation bench_compare_sliced_dict_varbinview[(3333, 10000)] 170.4 µs 191.4 µs -10.98%
... ... ... ... ... ...

ℹ️ Only the first 20 benchmarks are displayed. Go to the app to view all benchmarks.

Comparing aduffy/pluggable-arrow-exec (fba88e0) with develop (d7c22ba)

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