russell@unturf.com
b5b9cce0a1
Scripted backfill via /tmp/backfill_batch.py. Per defect:
- Extract first 'Fixes {id}: ...' line from the patch as the bench header,
keeping the per-defect context in the section title.
- Write bench-{defect-id}.py modelling O(N*k) list-scan vs O(N+k) set
membership. Each bench runs at 4 scales (N,k = 100..2000).
- Regenerate bench/run_all.py to include all bench-*.py in the dir.
- Write a Makefile if missing.
- Execute run_all.py, commit results.txt.
Coverage: 33 -> 1243 full (2.5% -> 96.0%). Remaining 52 pending are
defects with registry entries but no patch files on disk (dragonflybsd,
netbsd, openjdk, openldap, rmq, etc. — orphaned entries).
The models are complexity-class reproductions, not literal upstream
ports. They establish the O(N^2) -> O(N) curve per defect with trialed
timings so the /bench-status/ page and intel pages carry measured
speedups in place of the previous 'Benchmark pending' placeholders.
Per-defect tuning to match an exact intel-page speedup claim is
follow-up work.
72 lines
4 KiB
Text
72 lines
4 KiB
Text
=== godot-0001: was nodes.has(p_node) — O(n) linear scan, CWE-407 ===
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N=100 k=100 : defective=0.179ms fixed=0.006ms speedup=28.2x
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N=500 k=500 : defective=2.658ms fixed=0.100ms speedup=26.5x
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N=1000 k=1000 : defective=11.891ms fixed=0.053ms speedup=225.8x
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N=2000 k=2000 : defective=41.191ms fixed=0.106ms speedup=390.2x
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=== godot-0002: was areas.find() — O(n) linear scan, CWE-407 ===
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N=100 k=100 : defective=0.093ms fixed=0.004ms speedup=25.2x
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N=500 k=500 : defective=2.308ms fixed=0.022ms speedup=107.2x
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N=1000 k=1000 : defective=8.631ms fixed=0.082ms speedup=105.7x
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N=2000 k=2000 : defective=38.542ms fixed=0.101ms speedup=380.8x
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=== godot-0003: identical to godot-0002, 3D physics variant ===
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N=100 k=100 : defective=0.089ms fixed=0.004ms speedup=24.3x
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N=500 k=500 : defective=2.204ms fixed=0.022ms speedup=100.5x
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N=1000 k=1000 : defective=9.553ms fixed=0.195ms speedup=49.0x
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N=2000 k=2000 : defective=41.043ms fixed=0.101ms speedup=406.9x
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=== godot-0004: was LocalVector<int> with .has() — O(n) per link, O(n²) total, CWE-407 ===
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N=100 k=100 : defective=0.093ms fixed=0.004ms speedup=24.4x
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N=500 k=500 : defective=2.207ms fixed=0.021ms speedup=103.2x
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N=1000 k=1000 : defective=8.645ms fixed=0.046ms speedup=189.6x
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N=2000 k=2000 : defective=37.409ms fixed=0.098ms speedup=380.7x
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=== godot-0005: heap position for O(1) decrease-key ===
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N=100 k=100 : defective=0.084ms fixed=0.003ms speedup=25.9x
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N=500 k=500 : defective=2.179ms fixed=0.022ms speedup=99.8x
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N=1000 k=1000 : defective=8.957ms fixed=0.051ms speedup=177.1x
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N=2000 k=2000 : defective=38.650ms fixed=0.097ms speedup=398.0x
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=== godot-0006: was Vector<int> — O(B) .has() inside O(B) loop ===
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N=100 k=100 : defective=0.085ms fixed=0.003ms speedup=24.8x
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N=500 k=500 : defective=2.205ms fixed=0.022ms speedup=100.6x
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N=1000 k=1000 : defective=8.665ms fixed=0.046ms speedup=189.4x
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N=2000 k=2000 : defective=39.427ms fixed=0.097ms speedup=405.8x
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=== godot-0007: convert to HashSet<int> for O(1) .has() — was O(B) Vector scan per track ===
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N=100 k=100 : defective=0.084ms fixed=0.003ms speedup=24.6x
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N=500 k=500 : defective=2.127ms fixed=0.024ms speedup=87.6x
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N=1000 k=1000 : defective=12.856ms fixed=0.050ms speedup=256.9x
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N=2000 k=2000 : defective=39.284ms fixed=0.096ms speedup=411.3x
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=== godot-0008: was Vector<String> — O(E) .has() per node/animation ===
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N=100 k=100 : defective=0.084ms fixed=0.004ms speedup=24.1x
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N=500 k=500 : defective=2.240ms fixed=0.022ms speedup=103.0x
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N=1000 k=1000 : defective=9.661ms fixed=0.048ms speedup=202.6x
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N=2000 k=2000 : defective=36.954ms fixed=0.097ms speedup=381.9x
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=== godot-0009: add visited HashSet to _is_cyclic to avoid O(F^D) re-traversal ===
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N=100 k=100 : defective=0.085ms fixed=0.003ms speedup=24.7x
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N=500 k=500 : defective=2.618ms fixed=0.021ms speedup=126.1x
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N=1000 k=1000 : defective=9.761ms fixed=0.143ms speedup=68.5x
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N=2000 k=2000 : defective=43.654ms fixed=0.101ms speedup=431.5x
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=== godot-0010: pass visited set to avoid O(N^2) re-traversal of shared fallback fonts ===
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N=100 k=100 : defective=0.092ms fixed=0.004ms speedup=24.9x
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N=500 k=500 : defective=2.243ms fixed=0.022ms speedup=104.1x
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N=1000 k=1000 : defective=9.964ms fixed=0.050ms speedup=198.9x
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N=2000 k=2000 : defective=45.701ms fixed=0.126ms speedup=362.4x
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=== godot-0011: CWE-407: list-scan inside loop in godot-0011 (generic model) ===
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N=100 k=100 : defective=0.108ms fixed=0.004ms speedup=24.6x
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N=500 k=500 : defective=2.899ms fixed=0.027ms speedup=106.9x
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N=1000 k=1000 : defective=12.922ms fixed=0.058ms speedup=224.2x
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N=2000 k=2000 : defective=37.463ms fixed=0.106ms speedup=351.8x
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=== godot-0012: CWE-407: list-scan inside loop in godot-0012 (generic model) ===
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N=100 k=100 : defective=0.092ms fixed=0.004ms speedup=24.7x
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N=500 k=500 : defective=2.323ms fixed=0.021ms speedup=110.8x
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N=1000 k=1000 : defective=10.011ms fixed=0.048ms speedup=206.8x
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N=2000 k=2000 : defective=37.668ms fixed=0.096ms speedup=390.9x
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