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.
24 lines
1.4 KiB
Text
24 lines
1.4 KiB
Text
=== ppsspp-0001: t->waitingThreads vector with std::find before push_back — O(W) per ===
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N=100 k=100 : defective=0.093ms fixed=0.004ms speedup=26.5x
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N=500 k=500 : defective=2.367ms fixed=0.023ms speedup=105.1x
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N=1000 k=1000 : defective=9.620ms fixed=0.051ms speedup=190.3x
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N=2000 k=2000 : defective=35.434ms fixed=0.097ms speedup=366.7x
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=== ppsspp-0002: s->waitingThreads vector with std::find before push_back — O(W) ===
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N=100 k=100 : defective=0.085ms fixed=0.003ms speedup=24.9x
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N=500 k=500 : defective=2.113ms fixed=0.020ms speedup=103.9x
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N=1000 k=1000 : defective=8.604ms fixed=0.047ms speedup=184.9x
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N=2000 k=2000 : defective=36.020ms fixed=0.097ms speedup=371.4x
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=== ppsspp-0003: vector with std::find for block removal — O(B) per page where B = ===
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N=100 k=100 : defective=0.084ms fixed=0.003ms speedup=24.9x
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N=500 k=500 : defective=2.110ms fixed=0.021ms speedup=101.0x
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N=1000 k=1000 : defective=9.508ms fixed=0.051ms speedup=185.0x
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N=2000 k=2000 : defective=36.159ms fixed=0.098ms speedup=369.6x
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=== ppsspp-0004: CWE-407: list-scan inside loop in ppsspp-0004 (generic model) ===
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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=2.117ms fixed=0.020ms speedup=104.1x
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N=1000 k=1000 : defective=8.689ms fixed=0.044ms speedup=196.2x
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N=2000 k=2000 : defective=37.920ms fixed=0.097ms speedup=391.0x
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