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Phase 3 C3: Static Routing A/B Test ADOPT (+2.20% Mixed gain)
Step 2 & 3 Complete:
- A/B test (Mixed 10-run): STATIC_ROUTE=0 (38.91M) → =1 (39.77M) = +2.20% avg
- Median gain: +1.98%
- Result: ✅ GO (exceeds +1.0% threshold)
- Decision: ✅ ADOPT into MIXED_TINYV3_C7_SAFE preset
- bench_profile.h line 77: HAKMEM_TINY_STATIC_ROUTE=1 default
- Learner auto-disables static route when HAKMEM_SMALL_LEARNER_V7_ENABLED=1
Implementation Summary:
- core/box/tiny_static_route_box.{h,c}: Research box (Step 1A)
- core/front/malloc_tiny_fast.h: Route lookup integration (Step 1B, lines 249-256)
- core/bench_profile.h: Bench sync + preset adoption
Cumulative Phase 2-3 Gains:
- B3 (Routing shape): +2.89%
- B4 (Wrapper split): +1.47%
- C3 (Static routing): +2.20%
- Total: ~6.8% (35.2M → ~39.8M ops/s)
Next: Phase 3 C1 (TLS Prefetch, expected +2-4%)
🤖 Generated with Claude Code
Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>
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2025-12-13 18:46:11 +09:00 |
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Phase 2 B4: Documentation & Instruction Creation (Phase 2→3 Transition)
Documentation Created:
- docs/analysis/PHASE2_STRUCTURAL_CHANGES_NEXT_INSTRUCTIONS.md: Phase 2 完了レポート (B3+B4累積 +4.4%)
- docs/analysis/PHASE3_CACHE_LOCALITY_NEXT_INSTRUCTIONS.md: Phase 3 開始指示（C3 Static Routing優先）
Verification Completed:
- ✅ HAKMEM_WRAP_SHAPE=1 プリセット昇格（core/bench_profile.h:67）
- ✅ wrapper_env_refresh_from_env() 実装済み（core/box/wrapper_env_box.c:49-64）
- ✅ malloc_cold() lock_depth 対称性確認（全 return 経路で g_hakmem_lock_depth--）
- ✅ A/B テスト結果: Mixed +1.47% (≥+1.0% GO threshold)
Summary:
B3 routing shape: +2.89%
B4 wrapper shape: +1.47%
─────────────────
Estimated total: ~+4.4%
Next Phase: Phase 3 (Cache Locality, +12-22%)
- Priority: C3 (Static Routing) - bypass policy_snapshot, +5-8% expected
- Profile: perf top で malloc/policy_snapshot hot spot を特定推奨
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>
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2025-12-13 17:32:34 +09:00 |
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