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Moe Charm (CI) e95e61f0ff Phase POLICY-FAST-PATH-V2 complete + MID-V35-HOTPATH-OPT-1 design

## Phase POLICY-FAST-PATH-V2 (FROZEN)
- Implementation complete: free_policy_fast_v2_box.h + malloc_tiny_fast.h integration
- A/B Results:
  - Mixed (ws=400): -1.6% regression ❌ (branch cost > skip benefit)
  - C6-heavy (ws=200): +5.4% improvement ✅
- Decision: Default OFF, FROZEN (ws<300 / C6-heavy research only)
- Learning: Large WS causes branch misprediction to dominate

## Phase 3-GRADUATE + ENV probe fix
- 64-probe retry for getenv() stability during bench_profile putenv()
- C6 ULTRA intrusive freelist: FROZEN (research box)

## Phase MID-V35-HOTPATH-OPT-1-DESIGN
- Design doc for next optimization target
- Target: MID v3.5 alloc/free hot path (C5-C6)
- Boxes: Stats Gate, TLS Layout, Boundary Check elimination
- Expected: +3-9% on Mixed mainline

Files:
- core/box/free_policy_fast_v2_box.h (new)
- core/box/free_path_stats_box.h/c (policy_fast_v2_skip counter)
- core/front/malloc_tiny_fast.h (fast-path integration)
- docs/analysis/MID_V35_HOTPATH_OPT_1_DESIGN.md (new)
- docs/analysis/PHASE_3_GRADUATE_*.md (new)
- CURRENT_TASK.md (phase status update)

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

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

2025-12-12 18:40:08 +09:00

ATOMIC_FREELIST_INDEX.md

ENV cleanup: Remove BG/HotMag vars & guard fprintf (Larson 52.3M ops/s)

2025-11-26 14:45:26 +09:00

CONFIGURATION.md

P0 Optimization: Shared Pool fast path with O(1) metadata lookup

2025-12-04 16:21:54 +09:00

CURRENT_SPEC.md

Debug Counters Implementation - Clean History

2025-11-05 12:31:14 +09:00

DOCS_INDEX.md

WIP: Add TLS SLL validation and SuperSlab registry fallback