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hakmem/CURRENT_TASK.md
Moe Charm (CI) b7085c47e1 Phase 35-39: FAST build optimization complete (+7.13% cumulative)
Phase 35-A: BENCH_MINIMAL gate function elimination (GO +4.39%)
- tiny_front_v3_enabled() → constant true
- tiny_metadata_cache_enabled() → constant 0
- learner_v7_enabled() → constant false
- small_learner_v2_enabled() → constant false

Phase 36: Policy snapshot init-once (GO +0.71%)
- small_policy_v7_snapshot() version check skip in BENCH_MINIMAL
- TLS cache for policy snapshot

Phase 37: Standard TLS cache (NO-GO -0.07%)
- TLS cache for Standard build attempted
- Runtime gate overhead negates benefit

Phase 38: FAST/OBSERVE/Standard workflow established
- make perf_fast, make perf_observe targets
- Scorecard and documentation updates

Phase 39: Hot path gate constantization (GO +1.98%)
- front_gate_unified_enabled() → constant 1
- alloc_dualhot_enabled() → constant 0
- g_bench_fast_front, g_v3_enabled blocks → compile-out
- free_dispatch_stats_enabled() → constant false

Results:
- FAST v3: 56.04M ops/s (47.4% of mimalloc)
- Standard: 53.50M ops/s (45.3% of mimalloc)
- M1 target (50%): 5.5% remaining

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

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
2025-12-16 15:01:56 +09:00

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# CURRENT_TASKRolling
## 0) 今の「正」Phase 39
- **性能比較の正**: **FAST build**`make perf_fast`
- **安全・互換の正**: Standard build`make bench_random_mixed_hakmem`
- **観測の正**: OBSERVE build`make perf_observe`
- **スコアカード**: `docs/analysis/PERFORMANCE_TARGETS_SCORECARD.md`
- **計測の正Mixed 10-run**: `scripts/run_mixed_10_cleanenv.sh``ITERS=20000000 WS=400`
## 1) 現状(最新スナップショット)
- FAST v3: **56.04M ops/s**mimalloc の **47.4%**
- Standard: **53.50M ops/s**mimalloc の **45.3%**
※詳細は `docs/analysis/PERFORMANCE_TARGETS_SCORECARD.md` を正とする(ここは要点だけ)。
## 2) 原則Box Theory 運用)
- 変更は箱で分けるENV / build flag で戻せる)
- 境界は 1 箇所(変換点を増やさない)
- **削除して速くするlink-out / 大きい削除)は封印**layout/LTO で符号反転する)
- ✅ compile-out`#if HAKMEM_*_COMPILED` / `#if HAKMEM_BENCH_MINIMAL`)は許容
- ❌ Makefile から `.o` を外す / コード物理削除は原則しないPhase 22-2 NO-GO
- A/B は **同一バイナリ**でトグルENV / build flag。別バイナリ比較は layout が混ざる。
## 3) 次の指示書
TBDPhase 39 完了)
## 4) 直近のログ(要点だけ)
- Phase 2434: atomic prune 累積 **+2.74%**(その後 diminishing returns
- Phase 35-A: `HAKMEM_BENCH_MINIMAL=1`gate prune**GO +4.39%**
- Phase 36: FAST-only policy snapshot 最適化 **GO +0.71%**
- Phase 37: Standard TLS cache **NO-GO**runtime gate の税が勝つ)
- Phase 38: FAST/OBSERVE/Standard 運用確立scorecard + Makefile targets
- Phase 39: FAST v3 gate 定数化 **GO +1.98%**
- 結果詳細: `docs/analysis/PHASE39_FAST_V3_GATE_CONSTANTIZATION_RESULTS.md`
## 5) アーカイブ
-`CURRENT_TASK.md`(詳細ログ)は `archive/CURRENT_TASK_ARCHIVE_20251216.md`