hakmem

Files

Moe Charm (CI) 8fdbc6d07e Phase 70-73: Route banner + observe stats consistency + WarmPool analysis SSOT

Observability infrastructure:
- Route Banner (ENV: HAKMEM_ROUTE_BANNER=1) for runtime configuration display
- Unified Cache consistency check (total_allocs vs total_frees)
- Verified counters are balanced (5.3M allocs = 5.3M frees)

WarmPool=16 comprehensive analysis:
- Phase 71: A/B test confirmed +1.31% throughput, 2.4x stability improvement
- Phase 73: Hardware profiling identified instruction reduction as root cause
  * -17.4M instructions (-0.38%)
  * -3.7M branches (-0.30%)
  * Trade-off: dTLB/cache misses increased, but instruction savings dominate
- Phase 72-0: Function-level perf record pinpointed unified_cache_push
  * Branches: -0.86% overhead (largest single-function improvement)
  * Instructions: -0.22% overhead

Key finding: WarmPool=16 optimization is control-flow based, not memory-hierarchy based.
Full analysis: docs/analysis/PHASE70_71_WARMPOOL16_ANALYSIS.md

2025-12-18 05:55:27 +09:00

fast_cache.h

Front-Direct implementation: SS→FC direct refill + SLL complete bypass

2025-11-14 05:41:49 +09:00

malloc_tiny_fast.h

Phase 54-60: Memory-Lean mode, Balanced mode stabilization, M1 (50%) achievement

2025-12-17 06:24:01 +09:00

quick_slot.h

Front-Direct implementation: SS→FC direct refill + SLL complete bypass

2025-11-14 05:41:49 +09:00

tiny_first_page_cache.h

Phase 3 C2: Slab Metadata Cache Optimization (3 patches) - NEUTRAL