hakmem/hakmem_sys.d

hakmem_sys.o: core/hakmem_sys.c core/hakmem_sys.h core/hakmem_debug.h \
 core/hakmem_env_cache.h core/box/ss_os_acquire_box.h \
 core/box/madvise_guard_box.h
core/hakmem_sys.h:
core/hakmem_debug.h:
core/hakmem_env_cache.h:
core/box/ss_os_acquire_box.h:
core/box/madvise_guard_box.h:
Guard madvise ENOMEM and stabilize pool/tiny front v3 2025-12-09 21:50:15 +09:00			`hakmem_sys.o: core/hakmem_sys.c core/hakmem_sys.h core/hakmem_debug.h \`
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			`core/hakmem_env_cache.h core/box/ss_os_acquire_box.h \`
			`core/box/madvise_guard_box.h`
Tiny: fix header/stride mismatch and harden refill paths - Root cause: header-based class indexing (HEADER_CLASSIDX=1) wrote a 1-byte header during allocation, but linear carve/refill and initial slab capacity still used bare class block sizes. This mismatch could overrun slab usable space and corrupt freelists, causing reproducible SEGV at ~100k iters. Changes - Superslab: compute capacity with effective stride (block_size + header for classes 0..6; class7 remains headerless) in superslab_init_slab(). Add a debug-only bound check in superslab_alloc_from_slab() to fail fast if carve would exceed usable bytes. - Refill (non-P0 and P0): use header-aware stride for all linear carving and TLS window bump operations. Ensure alignment/validation in tiny_refill_opt.h also uses stride, not raw class size. - Drain: keep existing defense-in-depth for remote sentinel and sanitize nodes before splicing into freelist (already present). Notes - This unifies the memory layout across alloc/linear-carve/refill with a single stride definition and keeps class7 (1024B) headerless as designed. - Debug builds add fail-fast checks; release builds remain lean. Next - Re-run Tiny benches (256/1024B) in debug to confirm stability, then in release. If any remaining crash persists, bisect with HAKMEM_TINY_P0_BATCH_REFILL=0 to isolate P0 batch carve, and continue reducing branch-miss as planned. 2025-11-09 18:55:50 +09:00			`core/hakmem_sys.h:`
			`core/hakmem_debug.h:`
Guard madvise ENOMEM and stabilize pool/tiny front v3 2025-12-09 21:50:15 +09:00			`core/hakmem_env_cache.h:`
			`core/box/ss_os_acquire_box.h:`
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			`core/box/madvise_guard_box.h:`