test: all_identical agg make fuzzer faster #7827
Draft
CodSpeed HQ / CodSpeed Performance Analysis
failed
May 7, 2026 in 0s
Performance Regression: -38.2%
⚠️ 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.
⚡ 1 improved benchmark
❌ 1 regressed benchmark
✅ 1204 untouched benchmarks
🆕 18 new benchmarks
⚠️ Please fix the performance issues or acknowledge them on CodSpeed.
Performance Changes
| Mode | Benchmark | BASE |
HEAD |
Efficiency | |
|---|---|---|---|---|---|
| 🆕 | Simulation | decimal_widen_scalar_loop |
N/A | 45.2 ms | N/A |
| 🆕 | Simulation | decimal_widen_assert_arrays_eq |
N/A | 90.4 ms | N/A |
| 🆕 | Simulation | fsl_nullable_all_identical |
N/A | 1.6 ms | N/A |
| 🆕 | Simulation | fsl_nullable_arrays_value_equal |
N/A | 1.9 ms | N/A |
| 🆕 | Simulation | fsl_nullable_assert_arrays_eq |
N/A | 148.2 ms | N/A |
| 🆕 | Simulation | fsl_nullable_scalar_loop |
N/A | 75 ms | N/A |
| 🆕 | Simulation | list_nullable_all_identical |
N/A | 2.7 ms | N/A |
| 🆕 | Simulation | list_nullable_assert_arrays_eq |
N/A | 55.7 ms | N/A |
| 🆕 | Simulation | list_nullable_scalar_loop |
N/A | 28.7 ms | N/A |
| 🆕 | Simulation | decimal_widen_all_identical |
N/A | 416.2 µs | N/A |
| 🆕 | Simulation | list_zero_copy_all_identical |
N/A | 2.5 ms | N/A |
| 🆕 | Simulation | decimal_widen_arrays_value_equal |
N/A | 1.8 ms | N/A |
| 🆕 | Simulation | list_zero_copy_arrays_value_equal |
N/A | 3.1 ms | N/A |
| 🆕 | Simulation | list_zero_copy_assert_arrays_eq |
N/A | 98.6 ms | N/A |
| 🆕 | Simulation | list_zero_copy_scalar_loop |
N/A | 50.4 ms | N/A |
| 🆕 | Simulation | struct_nullable_all_identical |
N/A | 868.8 µs | N/A |
| 🆕 | Simulation | struct_nullable_assert_arrays_eq |
N/A | 50.4 ms | N/A |
| 🆕 | Simulation | struct_nullable_scalar_loop |
N/A | 25.3 ms | N/A |
| ❌ | Simulation | chunked_bool_canonical_into[(1000, 10)] |
31.3 µs | 50.7 µs | -38.2% |
| ⚡ | Simulation | new_alp_prim_test_between[f64, 32768] |
250.9 µs | 192 µs | +30.7% |
Comparing ji/fuzzer-mem (0109fda) with develop (750457a)
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