fsst opt DO NOT MERGE#6996
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CodSpeed HQ / CodSpeed Performance Analysis
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Mar 17, 2026 in 0s
Performance Regression: -84.28%
⚡ 14 improved benchmarks
❌ 17 regressed benchmarks
✅ 978 untouched benchmarks
🆕 44 new benchmarks
⏩ 1515 skipped benchmarks1
⚠️ Please fix the performance issues or acknowledge them on CodSpeed.
Performance Changes
| Mode | Benchmark | BASE |
HEAD |
Efficiency | |
|---|---|---|---|---|---|
| ⚡ | Simulation | chunked_canonicalize_into[(1000, 100, 16, 64)] |
23.9 ms | 19.1 ms | +25.34% |
| ⚡ | Simulation | chunked_canonicalize_into[(1000, 100, 16, 16)] |
20.5 ms | 14.8 ms | +38.14% |
| ⚡ | Simulation | chunked_into_canonical[(1000, 100, 16, 16)] |
20.8 ms | 15.2 ms | +36.88% |
| ⚡ | Simulation | chunked_canonicalize_into[(1000, 50, 8, 16)] |
8.9 ms | 6.7 ms | +33.22% |
| ⚡ | Simulation | chunked_canonicalize_into[(1000, 50, 8, 4)] |
7.8 ms | 6.8 ms | +13.71% |
| ⚡ | Simulation | chunked_canonicalize_into[(1000, 50, 8, 64)] |
10.5 ms | 7.3 ms | +43.18% |
| ⚡ | Simulation | chunked_into_canonical[(1000, 50, 8, 16)] |
9.1 ms | 6.9 ms | +31.87% |
| ⚡ | Simulation | chunked_into_canonical[(1000, 100, 16, 64)] |
24.2 ms | 19.3 ms | +25.14% |
| ⚡ | Simulation | chunked_into_canonical[(1000, 50, 8, 4)] |
8 ms | 7.1 ms | +13.19% |
| ⚡ | Simulation | chunked_into_canonical[(1000, 50, 8, 64)] |
10.8 ms | 7.6 ms | +41.51% |
| ❌ | Simulation | train_compressor[(1000, 16, 4)] |
4.2 ms | 9.6 ms | -56.22% |
| ❌ | Simulation | train_compressor[(1000, 4, 4)] |
1.9 ms | 3.2 ms | -41.58% |
| ❌ | Simulation | train_compressor[(1000, 16, 8)] |
4.2 ms | 8 ms | -47.02% |
| ❌ | Simulation | train_compressor[(1000, 64, 4)] |
4.2 ms | 17.1 ms | -75.31% |
| ❌ | Simulation | train_compressor[(10000, 4, 4)] |
4.9 ms | 20.7 ms | -76.4% |
| ❌ | Simulation | train_compressor[(10000, 16, 4)] |
4.8 ms | 30.1 ms | -84.06% |
| ❌ | Simulation | train_compressor[(10000, 16, 8)] |
4.8 ms | 30.8 ms | -84.28% |
| ❌ | Simulation | train_compressor[(1000, 64, 8)] |
4.3 ms | 16.7 ms | -74.17% |
| ❌ | Simulation | train_compressor[(1000, 4, 8)] |
2 ms | 3.6 ms | -43.91% |
| ⚡ | Simulation | eq_canonicalize_low_match |
30.9 ms | 26.4 ms | +17.26% |
| ... | ... | ... | ... | ... | ... |
ℹ️ Only the first 20 benchmarks are displayed. Go to the app to view all benchmarks.
Comparing claude/optimize-fsst-compression-KgJdu (280a766) with develop (b921999)
Footnotes
-
1515 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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