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5b36c1c908
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Phase 26: Front Gate Unification - Tiny allocator fast path (+12.9%)
Implementation:
- New single-layer malloc/free path for Tiny (≤1024B) allocations
- Bypasses 3-layer overhead: malloc → hak_alloc_at (236 lines) → wrapper → tiny_alloc_fast
- Leverages Phase 23 Unified Cache (tcache-style, 2-3 cache misses)
- Safe fallback to normal path on Unified Cache miss
Performance (Random Mixed 256B, 100K iterations):
- Baseline (Phase 26 OFF): 11.33M ops/s
- Phase 26 ON: 12.79M ops/s (+12.9%)
- Prediction (ChatGPT): +10-15% → Actual: +12.9% (perfect match!)
Bug fixes:
- Initialization bug: Added hak_init() call before fast path
- Page boundary SEGV: Added guard for offset_in_page == 0
Also includes Phase 23 debug log fixes:
- Guard C2_CARVE logs with #if !HAKMEM_BUILD_RELEASE
- Guard prewarm logs with #if !HAKMEM_BUILD_RELEASE
- Set Hot_2048 as default capacity (C2/C3=2048, others=64)
Files:
- core/front/malloc_tiny_fast.h: Phase 26 implementation (145 lines)
- core/box/hak_wrappers.inc.h: Fast path integration (+28 lines)
- core/front/tiny_unified_cache.h: Hot_2048 default
- core/tiny_refill_opt.h: C2_CARVE log guard
- core/box/ss_hot_prewarm_box.c: Prewarm log guard
- CURRENT_TASK.md: Phase 26 completion documentation
ENV variables:
- HAKMEM_FRONT_GATE_UNIFIED=1 (enable Phase 26, default: OFF)
- HAKMEM_TINY_UNIFIED_CACHE=1 (Phase 23, required)
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
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2025-11-17 05:29:08 +09:00 |
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