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be723ca052
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Phase 8: FREE-STATIC-ROUTE ENV Cache Hardening (GO +2.61%)
Results:
- A/B test: +2.61% on Mixed (10-run, clean env)
- Baseline: 49.26M ops/s
- Optimized: 50.55M ops/s
- Improvement: +1.29M ops/s (+2.61%)
Strategy:
- Fix ENV cache accident (main前キャッシュ事故の修正)
- Add refresh mechanism to sync with bench_profile putenv
- Ensure Phase 3 D1 optimization works reliably
Success factors:
1. Performance improvement: +2.61% (existing win-box now reliable)
2. ENV cache accident fixed: refresh mechanism works correctly
3. Standard deviation improved: 867K → 336K ops/s (61% reduction)
4. Baseline quality improved: existing optimization now guaranteed
Implementation:
- Patch 1: Make ENV gate refreshable (tiny_free_route_cache_env_box.{h,c})
- Changed static int to extern _Atomic int
- Added tiny_free_static_route_refresh_from_env()
- Patch 2: Integrate refresh into bench_profile.h
- Call refresh after bench_setenv_default() group
- Patch 3: Update Makefile for new .c file
ENV cache fix verification:
- [FREE_STATIC_ROUTE] enabled appears twice (refresh working)
- bench_profile putenv now reliably reflected
Files modified:
- core/box/tiny_free_route_cache_env_box.h: extern + refresh API
- core/box/tiny_free_route_cache_env_box.c: NEW (global state + refresh)
- core/bench_profile.h: add refresh call
- Makefile: add new .o file
Health check: PASSED (all profiles)
Rollback: HAKMEM_FREE_STATIC_ROUTE=0 or revert Patch 1/2
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
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2025-12-14 18:49:08 +09:00 |
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dcc1d42e7f
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Phase 6-2: Promote Front FastLane Free DeDup (default ON)
Results:
- A/B test: +5.18% on Mixed (10-run, clean env)
- Baseline: 46.68M ops/s
- Optimized: 49.10M ops/s
- Improvement: +2.42M ops/s (+5.18%)
Strategy:
- Eliminate duplicate header validation in front_fastlane_try_free()
- Direct call to free_tiny_fast() when dedup enabled
- Single validation path (no redundant checks)
Success factors:
1. Complete duplicate elimination (free path optimization)
2. Free path importance (50% of Mixed workload)
3. Improved execution stability (CV: 1.00% → 0.58%)
Phase 6 cumulative:
- Phase 6-1 FastLane: +11.13%
- Phase 6-2 Free DeDup: +5.18%
- Total: ~+16-17% from baseline (multiplicative effect)
Promotion:
- Default: HAKMEM_FRONT_FASTLANE_FREE_DEDUP=1 (opt-out)
- Added to MIXED_TINYV3_C7_SAFE preset
- Added to C6_HEAVY_LEGACY_POOLV1 preset
- Rollback: HAKMEM_FRONT_FASTLANE_FREE_DEDUP=0
Files modified:
- core/box/front_fastlane_env_box.h: default 0 → 1
- core/bench_profile.h: added to presets
- CURRENT_TASK.md: Phase 6-2 GO result
Health check: PASSED (all profiles)
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
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2025-12-14 17:38:21 +09:00 |
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