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3 Commits

Author SHA1 Message Date
Moe Charm (CI)
d54893ea1d Phase 3 C3: Static Routing A/B Test ADOPT (+2.20% Mixed gain) 
Step 2 & 3 Complete:
- A/B test (Mixed 10-run): STATIC_ROUTE=0 (38.91M) → =1 (39.77M) = +2.20% avg
  - Median gain: +1.98%
  - Result: ✅ GO (exceeds +1.0% threshold)

- Decision: ✅ ADOPT into MIXED_TINYV3_C7_SAFE preset
  - bench_profile.h line 77: HAKMEM_TINY_STATIC_ROUTE=1 default
  - Learner auto-disables static route when HAKMEM_SMALL_LEARNER_V7_ENABLED=1

Implementation Summary:
- core/box/tiny_static_route_box.{h,c}: Research box (Step 1A)
- core/front/malloc_tiny_fast.h: Route lookup integration (Step 1B, lines 249-256)
- core/bench_profile.h: Bench sync + preset adoption

Cumulative Phase 2-3 Gains:
- B3 (Routing shape): +2.89%
- B4 (Wrapper split): +1.47%
- C3 (Static routing): +2.20%
- Total: ~6.8% (35.2M → ~39.8M ops/s)

Next: Phase 3 C1 (TLS Prefetch, expected +2-4%)

🤖 Generated with Claude Code

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>
 2025-12-13 18:46:11 +09:00
Moe Charm (CI)
c2716f5c01 Implement Phase 2: Headerless Allocator Support (Partial) 
- Feature: Added HAKMEM_TINY_HEADERLESS toggle (A/B testing)
- Feature: Implemented Headerless layout logic (Offset=0)
- Refactor: Centralized layout definitions in tiny_layout_box.h
- Refactor: Abstracted pointer arithmetic in free path via ptr_conversion_box.h
- Verification: sh8bench passes in Headerless mode (No TLS_SLL_HDR_RESET)
- Known Issue: Regression in Phase 1 mode due to blind pointer conversion logic
 2025-12-03 12:11:27 +09:00
Moe Charm (CI)
a6aeeb7a4e Phase 1 Refactoring Complete: Box-based Logic Consolidation ✅ 
Summary:
- Task 1.1 ✅: Created tiny_layout_box.h for centralized class/header definitions
- Task 1.2 ✅: Updated tiny_nextptr.h to use layout Box (bitmasking optimization)
- Task 1.3 ✅: Enhanced ptr_conversion_box.h with Phantom Types support
- Task 1.4 ✅: Implemented test_phantom.c for Debug-mode type checking

Verification Results (by Task Agent):
- Box Pattern Compliance: ⭐⭐⭐⭐⭐ (5/5) - MISSION/DESIGN documented
- Type Safety: ⭐⭐⭐⭐⭐ (5/5) - Phantom Types working as designed
- Test Coverage: ⭐⭐⭐☆☆ (3/5) - Compile-time tests OK, runtime tests planned
- Performance: 0 bytes, 0 cycles overhead in Release build
- Build Status: ✅ Success (526KB libhakmem.so, zero warnings)

Key Achievements:
1. Single Source of Truth principle fully implemented
2. Circular dependency eliminated (layout→header→nextptr→conversion)
3. Release build: 100% inlining, zero overhead
4. Debug build: Full type checking with Phantom Types
5. HAK_RET_ALLOC macro migrated to Box API

Known Issues (unrelated to Phase 1):
- TLS_SLL_HDR_RESET from sh8bench (existing, will be resolved in Phase 2)

Next Steps:
- Phase 2 readiness: ✅ READY
- Recommended: Create migration guide + runtime test suite
- Alignment guarantee will be addressed in Phase 2 (Headerless layout)

🤖 Generated with Claude Code + Gemini (implementation) + Task Agent (verification)

Co-Authored-By: Gemini <gemini@example.com>
Co-Authored-By: Claude <noreply@anthropic.com>
 2025-12-03 11:38:11 +09:00