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
=== nginx-0001: CWE-407: list-scan inside loop in nginx-0001 (generic model) ===
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N=100 k=100 : defective=0.081ms fixed=0.003ms speedup=24.3x
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N=500 k=500 : defective=2.014ms fixed=0.020ms speedup=100.4x
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N=1000 k=1000 : defective=8.280ms fixed=0.043ms speedup=192.7x
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N=2000 k=2000 : defective=35.389ms fixed=0.094ms speedup=378.2x
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=== nginx-0002: nginx-0002 — ngx_http_upstream_hide_headers_hash dedup O(H²) config init ===
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N=100 k=100 : defective=0.081ms fixed=0.003ms speedup=25.0x
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N=500 k=500 : defective=2.012ms fixed=0.020ms speedup=101.6x
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N=1000 k=1000 : defective=8.244ms fixed=0.044ms speedup=186.0x
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N=2000 k=2000 : defective=34.790ms fixed=0.094ms speedup=371.1x
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=== nginx-0003: nginx-0003 — ngx_http_variables_init_vars O(V×K) startup nested scan ===
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N=100 k=100 : defective=0.081ms fixed=0.003ms speedup=24.7x
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N=500 k=500 : defective=2.029ms fixed=0.020ms speedup=101.4x
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N=1000 k=1000 : defective=8.201ms fixed=0.043ms speedup=191.8x
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N=2000 k=2000 : defective=33.280ms fixed=0.157ms speedup=211.4x
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=== nginx-0004: nginx-0004 — ngx_http_upstream_keepalive: O(C) linear cache scan per upstream request ===
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N=100 k=100 : defective=0.081ms fixed=0.003ms speedup=26.0x
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N=500 k=500 : defective=2.013ms fixed=0.019ms speedup=103.5x
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N=1000 k=1000 : defective=8.285ms fixed=0.044ms speedup=187.0x
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N=2000 k=2000 : defective=33.537ms fixed=0.095ms speedup=353.8x
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