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.
30 lines
1.7 KiB
Text
30 lines
1.7 KiB
Text
=== systemd-0001: strv_extend_strv filter_duplicates O(N²) — CWE-407 ===
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N=100 k=100 : defective=0.098ms fixed=0.004ms speedup=25.1x
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N=500 k=500 : defective=2.376ms fixed=0.022ms speedup=107.0x
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N=1000 k=1000 : defective=11.118ms fixed=0.051ms speedup=220.1x
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N=2000 k=2000 : defective=36.030ms fixed=0.096ms speedup=373.5x
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=== systemd-0002: unit_file_get_list states filter O(U×S) — CWE-407 ===
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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=2.143ms fixed=0.021ms speedup=104.0x
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N=1000 k=1000 : defective=8.872ms fixed=0.046ms speedup=194.5x
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N=2000 k=2000 : defective=36.912ms fixed=0.101ms speedup=363.7x
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=== systemd-0003: dbus-cgroup IPIngressFilterPath/IPEgressFilterPath dedup O(N²) — CWE-407 ===
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N=100 k=100 : defective=0.088ms fixed=0.004ms speedup=24.9x
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N=500 k=500 : defective=2.100ms fixed=0.021ms speedup=101.8x
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N=1000 k=1000 : defective=10.010ms fixed=0.046ms speedup=216.0x
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N=2000 k=2000 : defective=35.122ms fixed=0.097ms speedup=361.5x
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=== systemd-0004-0001: CWE-407: list-scan inside loop in systemd-0004-0001 (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=2.415ms fixed=0.023ms speedup=103.1x
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N=1000 k=1000 : defective=9.939ms fixed=0.052ms speedup=189.3x
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N=2000 k=2000 : defective=37.695ms fixed=0.099ms speedup=381.5x
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=== systemd-0004-0004: CWE-407: list-scan inside loop in systemd-0004-0004 (generic model) ===
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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=2.359ms fixed=0.022ms speedup=107.7x
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N=1000 k=1000 : defective=9.442ms fixed=0.049ms speedup=191.9x
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N=2000 k=2000 : defective=39.868ms fixed=0.095ms speedup=419.2x
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