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.
18 lines
1 KiB
Text
18 lines
1 KiB
Text
=== ruby-0001: class.c do_include_modules_at super chain linear scan O(M*S) ===
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N=100 k=100 : defective=0.097ms fixed=0.004ms speedup=25.0x
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N=500 k=500 : defective=2.479ms fixed=0.024ms speedup=105.1x
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N=1000 k=1000 : defective=10.139ms fixed=0.052ms speedup=194.0x
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N=2000 k=2000 : defective=37.907ms fixed=0.096ms speedup=393.1x
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=== ruby-0002: CWE-407: list-scan inside loop in ruby-0002 (generic model) ===
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N=100 k=100 : defective=0.084ms fixed=0.003ms speedup=24.7x
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N=500 k=500 : defective=2.120ms fixed=0.020ms speedup=103.9x
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N=1000 k=1000 : defective=9.999ms fixed=0.045ms speedup=220.5x
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N=2000 k=2000 : defective=39.669ms fixed=0.098ms speedup=404.2x
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=== ruby-0003: RubyGems Gem::Specification#dependent_gems — O(N²×D) nested scan ===
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N=100 k=100 : defective=0.084ms fixed=0.003ms speedup=25.1x
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N=500 k=500 : defective=2.102ms fixed=0.020ms speedup=103.4x
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N=1000 k=1000 : defective=8.869ms fixed=0.046ms speedup=191.2x
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N=2000 k=2000 : defective=35.260ms fixed=0.096ms speedup=368.1x
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