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Author SHA1 Message Date
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
7e717432dd undf: assign UNDF-2026-000000874; stamp vllm-0001 patch 2026-03-30 16:42:12 -04:00
235a3b45b9 undf: assign UNDF-000000354..403 to 8 new defects; 571 total 2026-03-29 16:13:15 -04:00
a629bd0bbf no-stone-unturned wave: 8 new defects, 15 CLEAN confirmations; count 621→629
New defects (all PASS):
- exim-0001: same_hosts() MX-segment O(H²) → AVL set O(H log H), 10.5x at H=20
- minecraft-0001: DependencySorter.isCyclic no visited set O(E^D) → O(E), 342,000x at D=24
- minecraft-0002: PistonStructureResolver toPush ArrayList O(N²) → HashSet O(N)
- minecraft-0003: RedstoneWireEvaluator Deque.contains O(N²) → HashSet O(N)
- minecraft-0004: MoveThroughVillageGoal visited List O(N²) → HashSet O(N)
- mpich-0001: group_lpid_to_rank O(N²) → HashMap O(N), 313x at N=1000
- ompi-0001: group_overlap process-name scan O(N×M) → HashMap O(N+M), 2048x
- pcl-0001: RegionGrowing::getSegmentFromPoint O(C×S) → point_labels[] O(1), 50000x

CLEAN confirmed: esbuild, express, koa, ktor, lucene, mpich-recvq, ompi-startup,
  prosody, roda, rust/rustc-wave2, signal-server, solana, wiredtiger, wireguard-tools,
  linux-kernel (pointer to linux/)
2026-03-29 16:11:50 -04:00