Add composable chunked decompression via a vtable method - #9614
Add composable chunked decompression via a vtable method#9614joseph-isaacs wants to merge 5 commits into
1 benchmark 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.
⚠️ Different runtime environments detected
Some benchmarks with significant performance changes were compared across different runtime environments,
which may affect the accuracy of the results.
⚡ 4 improved benchmarks
❌ 1 regressed benchmark
✅ 2092 untouched benchmarks
🆕 11 new benchmarks
⏩ 106 skipped benchmarks1
Warning
Please fix the performance issues or acknowledge them on CodSpeed.
Performance Changes
| Mode | Benchmark | BASE |
HEAD |
Efficiency | |
|---|---|---|---|---|---|
| ❌ | Simulation | compress_fsst[(500, 64, 8)] |
476.8 µs | 539.5 µs | -11.62% |
| ⚡ | WallTime | mul_u64_nonnull_neon |
20.5 µs | 15.1 µs | +35.12% |
| ⚡ | WallTime | mul_i64_nonnull_neon |
20 µs | 17.1 µs | +17.27% |
| ⚡ | WallTime | multiply_shapes_neon[(16384, PerRowPerRow)] |
20.3 µs | 17.3 µs | +17.11% |
| ⚡ | Simulation | cold_misaligned[(16, 64)] |
389.9 µs | 344.2 µs | +13.28% |
| 🆕 | Simulation | chunked_decompress_into_patched_constant |
N/A | 18.5 ms | N/A |
| 🆕 | Simulation | chunked_vtable_decompress_into |
N/A | 22.9 ms | N/A |
| 🆕 | Simulation | chunked_vtable_sum |
N/A | 8.8 ms | N/A |
| 🆕 | Simulation | chunked_vtable_sum_generic_compose |
N/A | 10.9 ms | N/A |
| 🆕 | Simulation | chunked_vtable_sum_patched_constant |
N/A | 4.3 ms | N/A |
| 🆕 | Simulation | fused_decompress |
N/A | 20.7 ms | N/A |
| 🆕 | Simulation | hand_chunked_add_pass_sum |
N/A | 10.4 ms | N/A |
| 🆕 | Simulation | hand_fused_sum |
N/A | 8.2 ms | N/A |
| 🆕 | Simulation | sparse_decompress_patched_constant |
N/A | 16 ms | N/A |
| 🆕 | Simulation | two_pass_sum |
N/A | 37 ms | N/A |
| 🆕 | Simulation | two_pass_sum_patched_constant |
N/A | 32.2 ms | N/A |
Tip
Investigate this regression by commenting @codspeedbot fix this regression on this PR, or directly use the CodSpeed MCP with your agent.
Comparing claude/decompression-chunked-iteration-u3kcns (f62481a) with develop (253137f)
Footnotes
-
106 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. ↩