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docs: tone down Phase 75-5 PGO recovery estimates

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2025-12-18 09:37:55 +09:00
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docs/analysis/PERFORMANCE_TARGETS_SCORECARD.md
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@ -149,8 +149,8 @@ Phase 75-3 validated C5+C6 inline slots optimization on Standard binary (+5.41%)
2. **HIGH PRIORITY - PHASE 75-5 (PGO Profile Regeneration)**
- Regenerate PGO profile with C5=1, C6=1 training configuration
- Expected gain: +5-8% (if profile aligns with actual code optimization)
- Estimated recovery: 55.51 M ops/s → ~58-59 M ops/s
- Expected gain: unknown (likely positive if the training profile matches the actual hot path, but not guaranteed)
- Estimated recovery: treat any number as a hypothesis until re-measured (do not assume a return to Phase 69 levels)
- Root cause analysis: Investigate 14% gap vs Phase 69 (layout, code bloat, or profile mismatch)
**Documentation:**