tomoaki/hakmem

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Moe Charm (CI) 118c0e4857 Phase FREE-DISPATCHER-OPT-1: free dispatcher 統計計測

**目的**: free dispatcher（29%）の内訳を細分化して計測。

**実装内容**:
- FreeDispatchStats 構造体追加（ENV: HAKMEM_FREE_DISPATCH_STATS, default 0）
- カウンタ: total_calls / domain (tiny/mid/large) / route (ultra/legacy/pool/v6) / env_checks / route_for_class_calls
- hak_free_at / tiny_route_for_class / tiny_route_snapshot_init にカウンタ埋め込み
- 挙動変更なし（計測のみ、ENV OFF 時は overhead ゼロ）

**計測結果**:

Mixed 16-1024B (1M iter, ws=400):
- total=8,081, route_calls=267,967, env_checks=9
- BENCH_FAST_FRONT により大半は早期リターン
- route_for_class は主に alloc 側で呼ばれる（267k calls vs 8k frees）
- ENV check は初期化時の 9回のみ（snapshot 効果）

C6-heavy (257-768B, 1M iter, ws=400):
- total=500,099, route_calls=1,034, env_checks=9
- fg_classify_domain に到達する free が多い
- route_for_class 呼び出しは極小（snapshot 効果）

**結論**:
- ENV check は既に十分最適化されている（初期化時のみ）
- route_for_class は alloc 側での呼び出しが主で、free 側は snapshot で O(1)
- 次フェーズ（OPT-2）では別のアプローチを検討

**ドキュメント追加**:
- docs/analysis/FREE_DISPATCHER_ANALYSIS.md（新規）
- CURRENT_TASK.md に Phase FREE-DISPATCHER-OPT-1 セクション追加

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

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

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

..

Phase FREE-DISPATCHER-OPT-1: free dispatcher 統計計測

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

P0 Optimization: Shared Pool fast path with O(1) metadata lookup

2025-12-04 16:21:54 +09:00

WIP: Add TLS SLL validation and SuperSlab registry fallback

2025-12-03 20:42:28 +09:00

Incremental improvements: mid_desc cache, pool hotpath optimization, and doc updates

2025-12-10 14:00:57 +09:00

Implement Warm Pool Secondary Prefill Optimization (Phase B-2c Complete)

2025-12-04 23:31:54 +09:00

Debug Counters Implementation - Clean History

2025-11-05 12:31:14 +09:00

Add SuperSlab Prefault Box with 4MB MAP_POPULATE bug fix

2025-12-04 20:11:24 +09:00

Phase FREE-DISPATCHER-OPT-1: free dispatcher 統計計測

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

ACE_LEARNING_LAYER_PLAN.md

Debug Counters Implementation - Clean History

2025-11-05 12:31:14 +09:00

ACE_LEARNING_LAYER.md

WIP: Add TLS SLL validation and SuperSlab registry fallback

2025-12-03 20:42:28 +09:00

ANALYSIS_SYMPTOM_PROLIFERATION.md

Critical analysis: symptom suppression vs root cause elimination

2025-12-04 03:09:28 +09:00

BENCH_REPORT_2025_11_09.md

Tiny: Enable P0→FC direct path for class7 (1KB) by default + docs

2025-11-09 23:15:02 +09:00

BREAKTHROUGH_STABILITY_ACHIEVED.md

Document breakthrough: sh8bench stability achieved with SuperSlab refcount pinning

2025-12-03 21:57:36 +09:00

BUILD_PHASE7_POOL_TLS.md

Tiny: fix header/stride mismatch and harden refill paths

2025-11-09 18:55:50 +09:00

BUILDING_QUICKSTART.md

Tiny: fix remote sentinel leak → SEGV; add defense-in-depth; PoolTLS: refill-boundary remote drain; build UX help; quickstart docs

2025-11-09 16:49:34 +09:00

CHATGPT_CONTEXT_SUMMARY.md

Add comprehensive ChatGPT handoff documentation for TLS SLL diagnosis

2025-12-03 20:41:34 +09:00

CHATGPT_HANDOFF_TLS_DIAGNOSIS.md

Add comprehensive ChatGPT handoff documentation for TLS SLL diagnosis

2025-12-03 20:41:34 +09:00

CHATGPT_PROGRESS_AND_ISSUES.md

Add ChatGPT progress analysis and remaining issues documentation

2025-12-03 20:44:18 +09:00

CRASH_180s_INVESTIGATION_GUIDE.md

Fix critical integer overflow bug in TLS SLL trace counters

2025-12-04 10:38:19 +09:00

CRITICAL_DISCOVERY_TLS_HEAD_CORRUPTION.md

Document critical discovery: TLS head corruption is not offset issue

2025-12-03 21:02:04 +09:00

DEFENSIVE_LAYERS_MAPPING.md

Add defensive layers mapping and diagnostic logging enhancements

2025-12-04 04:15:10 +09:00

DOCS_REORG_PLAN.md

ENV cleanup: Remove BG/HotMag vars & guard fprintf (Larson 52.3M ops/s)

2025-11-26 14:45:26 +09:00

FINAL_ROOT_CAUSE_AND_RESOLUTION.md

Add comprehensive final report on root cause fix

2025-12-04 05:40:50 +09:00

FREE_SAFETY.md

Debug Counters Implementation - Clean History

2025-11-05 12:31:14 +09:00

GEMINI_HANDOFF_SUMMARY.md

Add comprehensive ChatGPT handoff documentation for TLS SLL diagnosis

2025-12-03 20:41:34 +09:00

HEADERLESS_STABILITY_DEBUG_INSTRUCTIONS.md

Add comprehensive ChatGPT handoff documentation for TLS SLL diagnosis

2025-12-03 20:41:34 +09:00

INDEX.md

ENV cleanup: Remove BG/HotMag vars & guard fprintf (Larson 52.3M ops/s)

2025-11-26 14:45:26 +09:00

INTEGER_OVERFLOW_BUG_FIX.md

Fix critical integer overflow bug in TLS SLL trace counters

2025-12-04 10:38:19 +09:00

PERF_ANALYSIS_TINY_MIXED.md

Debug Counters Implementation - Clean History

2025-11-05 12:31:14 +09:00

PHASE1_TLS_HINT_BENCHMARK.md

Implement Phase 1: TLS SuperSlab Hint Box for Headerless performance

2025-12-03 18:06:24 +09:00

PHASE2_BENCHMARK_RESULTS.md

Add Phase 2 benchmark results: Headerless ON/OFF comparison

2025-12-03 17:23:32 +09:00

PHASE2_HEADERLESS_INSTRUCTION_FOR_GEMINI.md

Add Phase 2 Headerless implementation instruction for Gemini

2025-12-03 11:41:34 +09:00

PHASE_E2_EXECUTIVE_SUMMARY.md

Phase E3-FINAL: Fix Box API offset bugs - ALL classes now use correct offsets

2025-11-13 06:50:20 +09:00

PHASE_E2_REGRESSION_ANALYSIS.md

Phase E3-FINAL: Fix Box API offset bugs - ALL classes now use correct offsets

2025-11-13 06:50:20 +09:00

PHASE_E2_VISUAL_COMPARISON.md

Phase E3-FINAL: Fix Box API offset bugs - ALL classes now use correct offsets

2025-11-13 06:50:20 +09:00

PHASE_E3_IMPLEMENTATION_PLAN.md

Phase E3-FINAL: Fix Box API offset bugs - ALL classes now use correct offsets

2025-11-13 06:50:20 +09:00

RAPID_DIAGNOSIS_CANARY_SANDWICH.md

Fix critical integer overflow bug in TLS SLL trace counters

2025-12-04 10:38:19 +09:00

README_HANDOFF_CHATGPT.md

Add comprehensive ChatGPT handoff documentation for TLS SLL diagnosis

2025-12-03 20:41:34 +09:00

README.md

Debug Counters Implementation - Clean History

2025-11-05 12:31:14 +09:00

REFACTOR_PLAN_GEMINI_ENHANCED.md

Update REFACTOR_PLAN to mark Phase 2 complete and document Magazine Spill fix

2025-12-03 17:16:19 +09:00

REFACTORING_INSTRUCTION_FOR_GEMINI.md

Add detailed refactoring instruction for Gemini - Phase 1 implementation

2025-12-03 11:20:59 +09:00

SEGFAULT_INVESTIGATION_FOR_GEMINI.md

Add comprehensive ChatGPT handoff documentation for TLS SLL diagnosis

2025-12-03 20:41:34 +09:00

SEGV_INVESTIGATION.md

Implement Phase 2: Headerless Allocator Support (Partial)

2025-12-03 12:11:27 +09:00

SESSION_SUMMARY_2025_12_04_INTEGER_OVERFLOW_FIX.md

Implement Phantom typing for Tiny FastCache layer

2025-12-04 11:05:06 +09:00

SESSION_SUMMARY_2025_12_04.md

Add comprehensive session summary: root cause fix + Box theory implementation

2025-12-04 06:12:47 +09:00

sh8bench_debug_instruction.md

sh8bench修正: LRU registry未登録問題 + self-heal修復

2025-12-03 09:15:59 +09:00

SLAB_HANDLE.md

Debug Counters Implementation - Clean History

2025-11-05 12:31:14 +09:00

STATUS_2025_12_03_CURRENT.md

Add comprehensive ChatGPT handoff documentation for TLS SLL diagnosis

2025-12-03 20:41:34 +09:00

TINY_C7_1KB_SEGV_TRIAGE.md

Tiny C7(1KB) SEGV triage hardening: always-on lightweight free-time guards for headerless class7 in both hak_tiny_free_with_slab and superslab free path (alignment/range check, fail-fast via SIGUSR2). Leave C7 P0/direct-FC gated OFF by default. Add docs/TINY_C7_1KB_SEGV_TRIAGE.md for Claude with repro matrix, hypotheses, instrumentation and acceptance criteria.

2025-11-10 01:59:11 +09:00

TINY_MODULARIZATION_ANALYSIS.md

Debug Counters Implementation - Clean History

2025-11-05 12:31:14 +09:00

TINY_MODULARIZATION_SUMMARY.md

Debug Counters Implementation - Clean History

2025-11-05 12:31:14 +09:00

TINY_P0_BATCH_REFILL.md

ENV cleanup: Remove BG/HotMag vars & guard fprintf (Larson 52.3M ops/s)

2025-11-26 14:45:26 +09:00

TINY_REDESIGN_CHECKLIST.md

Tiny Pool redesign: P0.1, P0.3, P1.1, P1.2 - Out-of-band class_idx lookup

2025-11-28 13:42:39 +09:00

tls_sll_hdr_reset_final_report.md

Add final investigation report for TLS_SLL_HDR_RESET

2025-12-03 11:14:59 +09:00

tls_sll_hdr_reset_for_gemini.md

Save current state before investigating TLS_SLL_HDR_RESET

2025-12-03 10:34:39 +09:00

tls_sll_hdr_reset_investigation_report.md

Fix TLS SLL race condition with atomic fence and report investigation results

2025-12-03 10:57:16 +09:00

tls_sll_hdr_reset_investigation_v2.md

Save current state before investigating TLS_SLL_HDR_RESET

2025-12-03 10:34:39 +09:00

TLS_SLL_HEADER_CORRUPTION_DIAGNOSIS.md

Add comprehensive ChatGPT handoff documentation for TLS SLL diagnosis

2025-12-03 20:41:34 +09:00

tls_sll_header_corruption_investigation.md

Save current state before investigating TLS_SLL_HDR_RESET

2025-12-03 10:34:39 +09:00

TLS_SS_HINT_BOX_DESIGN.md

Add comprehensive ChatGPT handoff documentation for TLS SLL diagnosis

2025-12-03 20:41:34 +09:00

README.md

Docs Overview

このフォルダは hakmem の設計・計測・運用メモを体系化して管理する場所です。

INDEX.md: 目次（各ドキュメントへのリンク）
benchmarks/: ベンチマーク手順とスイープ結果の保存先
specs/: 現在の仕様（SACS‑3/HW/ENV）を集約
roadmap/: これからの実装計画・優先度・タスク

運用ルール（提案）

1つの変更/計測のまとまりにつき1ファイル（or 1フォルダ）
再現コマンド・環境変数・ハード構成は必ず記載
大きな連続出力はファイルへ保存し、本文からは抜粋/要約を記載