CodSpeed HQ / CodSpeed Performance Analysis
failed
May 15, 2026 in 0s
2 benchmarks regressed
⚠️ 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.
⚡ 53 improved benchmarks❌ 2 regressed benchmarks✅ 1161 untouched benchmarks
Performance Changes
Mode
Benchmark
BASEHEADEfficiency
❌
Simulation
encode_varbin[(1000, 2)]148.5 µs
169.2 µs
-12.22%
⚡
Simulation
take_filter_list_nullable_random_mask_random_indices[256, 50]247.7 µs
191 µs
+29.71%
⚡
Simulation
take_filter_list_nullable_random_mask_random_indices[768, 50]281 µs
190.7 µs
+47.37%
⚡
Simulation
take_filter_list_random_mask_random_indices[256, 50]240.6 µs
180.3 µs
+33.42%
⚡
Simulation
take_filter_list_random_mask_random_indices[768, 50]277.1 µs
183.9 µs
+50.7%
⚡
Simulation
take_filter_list_random_mask_sequential_indices[256, 50]239.7 µs
175.6 µs
+36.46%
⚡
Simulation
take_filter_list_random_mask_sequential_indices[768, 50]276 µs
174.6 µs
+58.11%
⚡
Simulation
take_filter_list_slice_mask_random_indices[256, 50]209.6 µs
175.8 µs
+19.27%
⚡
Simulation
take_filter_list_slice_mask_random_indices[768, 50]248.2 µs
176.4 µs
+40.75%
⚡
Simulation
take_filter_list_slice_mask_sequential_indices[256, 50]209.5 µs
158.6 µs
+32.06%
⚡
Simulation
take_filter_list_slice_mask_sequential_indices[768, 50]247.8 µs
158.3 µs
+56.58%
⚡
Simulation
take_filter_primitive_nullable_random_mask_random_indices[16384, 1000]305.4 µs
200.7 µs
+52.16%
⚡
Simulation
take_filter_primitive_nullable_random_mask_random_indices[4096, 1000]144.1 µs
106.8 µs
+34.91%
⚡
Simulation
take_filter_primitive_nullable_slice_mask_random_indices[16384, 1000]289.2 µs
69.7 µs
×4.1
⚡
Simulation
take_filter_primitive_nullable_slice_mask_random_indices[4096, 1000]107.4 µs
58.9 µs
+82.17%
⚡
Simulation
take_filter_primitive_random_mask_random_indices[16384, 1000]304.3 µs
192.4 µs
+58.14%
⚡
Simulation
take_filter_primitive_random_mask_random_indices[4096, 1000]142.3 µs
97.7 µs
+45.68%
⚡
Simulation
take_filter_primitive_random_mask_sequential_indices[16384, 1000]303.1 µs
172.4 µs
+75.83%
⚡
Simulation
take_filter_primitive_random_mask_sequential_indices[4096, 1000]142.4 µs
87.6 µs
+62.66%
⚡
Simulation
take_filter_primitive_slice_mask_random_indices[16384, 1000]288.1 µs
59.3 µs
×4.9
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ℹ️ Only the first 20 benchmarks are displayed. Go to the app to view all benchmarks .
Investigate this regression by commenting @codspeedbot fix this regression on this PR, or directly use the CodSpeed MCP with your agent.
Comparing rk/parentexecute (866cecb develop (3000bc0
