hakmem

tomoaki/hakmem

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Author	SHA1	Message	Date
Moe Charm (CI)	acc64f2438	Phase ML1: Pool v1 memset 89.73% overhead 軽量化 (+15.34% improvement) ## Summary - ChatGPT により bench_profile.h の setenv segfault を修正（RTLD_NEXT 経由に切り替え） - core/box/pool_zero_mode_box.h 新設：ENV キャッシュ経由で ZERO_MODE を統一管理 - core/hakmem_pool.c で zero mode に応じた memset 制御（FULL/header/off） - A/B テスト結果：ZERO_MODE=header で +15.34% improvement（1M iterations, C6-heavy） ## Files Modified - core/box/pool_api.inc.h: pool_zero_mode_box.h include - core/bench_profile.h: glibc setenv → malloc+putenv（segfault 回避） - core/hakmem_pool.c: zero mode 参照・制御ロジック - core/box/pool_zero_mode_box.h (新設): enum/getter - CURRENT_TASK.md: Phase ML1 結果記載 ## Test Results \| Iterations \| ZERO_MODE=full \| ZERO_MODE=header \| Improvement \| \|-----------\|----------------\|-----------------\|------------\| \| 10K \| 3.06 M ops/s \| 3.17 M ops/s \| +3.65% \| \| 1M \| 23.71 M ops/s \| 27.34 M ops/s \| +15.34% \| 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>	2025-12-10 09:08:18 +09:00
Moe Charm (CI)	87b7d30998	Phase 9: SuperSlab optimization & EMPTY slab recycling (WIP) Phase 9-1: O(1) SuperSlab lookup optimization - Created ss_addr_map_box: Hash table (8192 buckets) for O(1) SuperSlab lookup - Created ss_tls_hint_box: TLS caching layer for SuperSlab hints - Integrated hash table into registry (init, insert, remove, lookup) - Modified hak_super_lookup() to use new hash table - Expected: 50-80 cycles → 10-20 cycles (not verified - SuperSlab disabled by default) Phase 9-2: EMPTY slab recycling implementation - Created slab_recycling_box: SLAB_TRY_RECYCLE() macro following Box pattern - Integrated into remote drain (superslab_slab.c) - Integrated into TLS SLL drain (tls_sll_drain_box.h) with touched slab tracking - Observable: Debug tracing via HAKMEM_SLAB_RECYCLE_TRACE - Updated Makefile: Added new box objects to 3 build targets Known Issues: - SuperSlab registry exhaustion still occurs (unregistration not working) - shared_pool_release_slab() may not be removing from g_super_reg[] - Needs investigation before Phase 9-2 can be completed Expected Impact (when fixed): - Stage 1 hit rate: 0% → 80% - shared_fail events: 4 → 0 - Kernel overhead: 55% → 15% - Throughput: 16.5M → 25-30M ops/s (+50-80%) 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>	2025-11-30 07:16:50 +09:00

Author

SHA1

Message

Date

Moe Charm (CI)

acc64f2438

Phase ML1: Pool v1 memset 89.73% overhead 軽量化 (+15.34% improvement)

## Summary
- ChatGPT により bench_profile.h の setenv segfault を修正（RTLD_NEXT 経由に切り替え）
- core/box/pool_zero_mode_box.h 新設：ENV キャッシュ経由で ZERO_MODE を統一管理
- core/hakmem_pool.c で zero mode に応じた memset 制御（FULL/header/off）
- A/B テスト結果：ZERO_MODE=header で +15.34% improvement（1M iterations, C6-heavy）

## Files Modified
- core/box/pool_api.inc.h: pool_zero_mode_box.h include
- core/bench_profile.h: glibc setenv → malloc+putenv（segfault 回避）
- core/hakmem_pool.c: zero mode 参照・制御ロジック
- core/box/pool_zero_mode_box.h (新設): enum/getter
- CURRENT_TASK.md: Phase ML1 結果記載

## Test Results
| Iterations | ZERO_MODE=full | ZERO_MODE=header | Improvement |
|-----------|----------------|-----------------|------------|
| 10K       | 3.06 M ops/s   | 3.17 M ops/s    | +3.65%     |
| 1M        | 23.71 M ops/s  | 27.34 M ops/s   | **+15.34%** |

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

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

2025-12-10 09:08:18 +09:00

Moe Charm (CI)

87b7d30998

Phase 9: SuperSlab optimization & EMPTY slab recycling (WIP)

Phase 9-1: O(1) SuperSlab lookup optimization
- Created ss_addr_map_box: Hash table (8192 buckets) for O(1) SuperSlab lookup
- Created ss_tls_hint_box: TLS caching layer for SuperSlab hints
- Integrated hash table into registry (init, insert, remove, lookup)
- Modified hak_super_lookup() to use new hash table
- Expected: 50-80 cycles → 10-20 cycles (not verified - SuperSlab disabled by default)

Phase 9-2: EMPTY slab recycling implementation
- Created slab_recycling_box: SLAB_TRY_RECYCLE() macro following Box pattern
- Integrated into remote drain (superslab_slab.c)
- Integrated into TLS SLL drain (tls_sll_drain_box.h) with touched slab tracking
- Observable: Debug tracing via HAKMEM_SLAB_RECYCLE_TRACE
- Updated Makefile: Added new box objects to 3 build targets

Known Issues:
- SuperSlab registry exhaustion still occurs (unregistration not working)
- shared_pool_release_slab() may not be removing from g_super_reg[]
- Needs investigation before Phase 9-2 can be completed

Expected Impact (when fixed):
- Stage 1 hit rate: 0% → 80%
- shared_fail events: 4 → 0
- Kernel overhead: 55% → 15%
- Throughput: 16.5M → 25-30M ops/s (+50-80%)

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

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

2025-11-30 07:16:50 +09:00

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