hakmem

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Author	SHA1	Message	Date
Moe Charm (CI)	d54893ea1d	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>	2025-12-13 18:46:11 +09:00
Moe Charm (CI)	0f15adae4e	Phase ALLOC-GATE-OPT-1: tiny_alloc_gate_fast 統計計測 - AllocGateStats 構造体追加（size2class/route/env/class分布） - malloc_tiny_fast にカウンタ埋め込み - ENV: HAKMEM_ALLOC_GATE_STATS (default 0) - 挙動変更なし（計測のみ）計測結果: - Mixed: total=542k, size2class=0, route_calls=0, env_checks=275k, C4-C7=95.2% - size_to_class/route_for_class は完全削減済み（LUT 効果） - C4-C7 が 95% → ULTRA fast path が有効 - env_checks ≈ c7_calls → C7 ULTRA の ENV gate が毎回呼ばれる - C6-heavy: total=11 → malloc_tiny_fast はほぼ通らない（mid/pool 主体）結論: - alloc gate は既に十分最適化済み（LUT + ULTRA で削減済み） - さらなる最適化余地は小さい（env_checks は軽量化済み、数%以下の効果） - 次フェーズでは free dispatcher (29%) や C7 ULTRA refill (7%) など、他のボトルネックを狙う詳細: docs/analysis/ALLOC_GATE_ANALYSIS.md 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>	2025-12-11 21:32:40 +09:00

Author

SHA1

Message

Date

Moe Charm (CI)

d54893ea1d

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>

2025-12-13 18:46:11 +09:00

Moe Charm (CI)

0f15adae4e

Phase ALLOC-GATE-OPT-1: tiny_alloc_gate_fast 統計計測

- AllocGateStats 構造体追加（size2class/route/env/class分布）
- malloc_tiny_fast にカウンタ埋め込み
- ENV: HAKMEM_ALLOC_GATE_STATS (default 0)
- 挙動変更なし（計測のみ）

計測結果:
- Mixed: total=542k, size2class=0, route_calls=0, env_checks=275k, C4-C7=95.2%
  - size_to_class/route_for_class は完全削減済み（LUT 効果）
  - C4-C7 が 95% → ULTRA fast path が有効
  - env_checks ≈ c7_calls → C7 ULTRA の ENV gate が毎回呼ばれる
- C6-heavy: total=11 → malloc_tiny_fast はほぼ通らない（mid/pool 主体）

結論:
- alloc gate は既に十分最適化済み（LUT + ULTRA で削減済み）
- さらなる最適化余地は小さい（env_checks は軽量化済み、数%以下の効果）
- 次フェーズでは free dispatcher (29%) や C7 ULTRA refill (7%) など、他のボトルネックを狙う

詳細: docs/analysis/ALLOC_GATE_ANALYSIS.md

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>

2025-12-11 21:32:40 +09:00

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