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
=== erlang-0001: CWE-407: list-scan inside loop in erlang-0001 (generic model) ===
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N=100 k=100 : defective=0.092ms fixed=0.004ms speedup=24.3x
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N=500 k=500 : defective=2.366ms fixed=0.022ms speedup=107.3x
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N=1000 k=1000 : defective=11.715ms fixed=0.047ms speedup=248.2x
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N=2000 k=2000 : defective=35.203ms fixed=0.096ms speedup=367.4x
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=== erlang-0003: CWE-407: list-scan inside loop in erlang-0003 (generic model) ===
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N=100 k=100 : defective=0.085ms fixed=0.003ms speedup=25.2x
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N=500 k=500 : defective=2.116ms fixed=0.021ms speedup=101.5x
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N=1000 k=1000 : defective=9.100ms fixed=0.118ms speedup=77.2x
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N=2000 k=2000 : defective=35.514ms fixed=0.098ms speedup=363.6x
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=== erlang-0004: edlin_type_suggestion print_type — Visited list O(D²) membership scan ===
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N=100 k=100 : defective=0.085ms fixed=0.003ms speedup=25.4x
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N=500 k=500 : defective=2.116ms fixed=0.021ms speedup=103.1x
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N=1000 k=1000 : defective=9.040ms fixed=0.050ms speedup=181.1x
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N=2000 k=2000 : defective=39.408ms fixed=0.097ms speedup=405.2x
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