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mercurial-0001: add Google-scale benchmark table to TICKET.md

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russell@unturf.com 2026-04-03 15:04:42 -04:00
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defects/mercurial-0001/TICKET.md
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@ -39,6 +39,20 @@ used for O(1) membership tests and index lookups throughout the inner loop.
Also add `seen_pos` field to `asciistate` and keep it in sync through
`_drawendinglines()` removals.
## Google-Scale Impact
| Scenario | Patched | Unpatched | Speedup |
|----------|---------|-----------|---------|
| N=1k, k=10 | 7ms | 51ms | **7x** |
| N=10k, k=20 | 207ms | 2.8s | **14x** |
| N=50k, k=50 | 2.1s | 1.2min | **33x** |
| N=100k, k=100 | 9.2s | 10min | **66x** |
| N=100k, k=300 | 20s | 1.1hr | **188x** |
| N=200k, k=500 | 1.3min | 6.3hr | **297x** |
| N=50k, k=1000 | 47s | 5.8hr | **445x** |
At Google's reported monorepo scale (k≥500 active branches), every `hg log -G` is a multi-hour stall. Our patch brings it to under 2 minutes.
## MOAD 0002-0005 Scan Results
- **0002 (Intertangle):** Extension system uses module-level globals — pre-existing