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>
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@ -229,6 +229,17 @@ static inline int free_tiny_fast(void* ptr) {
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// 4. BASE を計算して Unified Cache に push
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void* base = (void*)((char*)ptr - 1);
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tiny_front_free_stat_inc(class_idx);
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// C7 v3 fast classify: bypass classify_ptr/ss_map_lookup for clear hits
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if (class_idx == 7 &&
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tiny_front_v3_enabled() &&
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tiny_ptr_fast_classify_enabled() &&
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small_heap_v3_c7_enabled() &&
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smallobject_hotbox_v3_can_own_c7(base)) {
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so_free(7, base);
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return 1;
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}
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tiny_route_kind_t route = tiny_route_for_class((uint8_t)class_idx);
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const int use_tiny_heap = tiny_route_is_heap_kind(route);
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const TinyFrontV3Snapshot* front_snap =
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