java-topology/defects/artemis/bench/results.txt
russell@unturf.com b5b9cce0a1 bench backfill: +1210 Python complexity-class models across 583 projects
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.
2026-04-23 12:31:18 -04:00

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=== artemis-0001: BindingsImpl routeFromCluster O(R×A) → O(R+A) ===
N=100 k=100 : defective=0.097ms fixed=0.004ms speedup=25.1x
N=500 k=500 : defective=2.459ms fixed=0.024ms speedup=104.6x
N=1000 k=1000 : defective=10.398ms fixed=0.052ms speedup=201.7x
N=2000 k=2000 : defective=40.387ms fixed=0.108ms speedup=375.5x
=== artemis-0002: CWE-407: list-scan inside loop in artemis-0002 (generic model) ===
N=100 k=100 : defective=0.093ms fixed=0.004ms speedup=26.2x
N=500 k=500 : defective=2.777ms fixed=0.025ms speedup=112.2x
N=1000 k=1000 : defective=11.224ms fixed=0.052ms speedup=216.6x
N=2000 k=2000 : defective=38.452ms fixed=0.101ms speedup=381.5x