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Phase v11a: Architecture design and implementation roadmap documents
Create comprehensive design specifications for Phase v11a (MID v3.5):
1. PHASE_V11A_DESIGN_MID_V3.5.md
- Decision rationale: Option A chosen (consolidation vs expansion)
- MID v3.5 architecture: unified 257-1KiB box
- Role clarification: v7 frozen as research preset
- Learner v2 scope: multi-class tracking, C5 ratio primary decision
- Segment design decision: shared segment (Design B) vs separate segments
- Stats expansion: per-class efficiency metrics
- API changes: minimal, backward compatible
2. PHASE_V11A_IMPLEMENTATION_ROADMAP.md
- Detailed task breakdown for v11a-1, v11a-2, v11a-3
- File structure: new boxes, implementation files, modified files
- Concrete function signatures and integration points
- Benchmark commands and expected performance
- Dependency graph and implementation order
- Build/Makefile changes needed
- Testing strategy and regression checks
Key Design Decisions:
- Multi-class segment uses shared 2MiB segment (not separate)
- Per-class free page stacks for efficient refill
- Stats published per-page retire (for Learner ingestion)
- TLS version-based cache invalidation (atomic policy updates)
- Backward compatibility: Policy v2 extends v1 interface
Next Step: Phase v11a-2 (Core Implementation)
- Implement segment creation/alloc/free
- Add C7 support to existing MID_v3
- Stats recording during page retire
- Learner aggregation logic
🤖 Generated with Claude Code
Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>
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2025-12-12 06:20:14 +09:00 |
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