Bench bench-ansible-0001.py rewritten to model the real defect: Role-like
objects with __eq__ but no __hash__, and to demonstrate that the naive
list->set swap raises TypeError. bench_fixed uses a MockRole with both
__eq__ and __hash__. Four scales D=100..2000, min of 3 trials per scale.
Patch doc ansible-0001-role-get-vars-seen-list.md now describes the
coupled change (add __hash__, then switch seen list to set), references
the upstream PR branch and the integration target roles_var_inheritance.
Added ansible-0001-role-get-vars-seen-list.patch (git-format-patch export
from the upstream commit) with mandatory complexity-gate comment block.
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.
