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hakmem/docs/analysis
Moe Charm (CI) ad73ca5544 Phase 11: ENV Snapshot maybe-fast API - NO-GO (-8.35%)
Phase 11 attempted to consolidate ENV snapshot overhead by:
- Adding hakmem_env_snapshot_maybe_fast() API
- Caching front_v3_snap pointer in HakmemEnvSnapshot
- Replacing separate calls with single API at call sites

Result: -8.35% regression (51.65M → 47.33M ops/s)

Root cause:
- maybe_fast() called in inline hot path functions
- ctor_mode check accumulated on every call
- Compiler optimization inhibited
- Even 2-3 instructions are expensive at high frequency

Lesson: ENV gate optimization should target gate itself, not call sites.

All changes rolled back. Phase 11 FROZEN.

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

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
2025-12-14 20:44:42 +09:00
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