Debug Counters Implementation - Clean History

Major Features:
- Debug counter infrastructure for Refill Stage tracking
- Free Pipeline counters (ss_local, ss_remote, tls_sll)
- Diagnostic counters for early return analysis
- Unified larson.sh benchmark runner with profiles
- Phase 6-3 regression analysis documentation

Bug Fixes:
- Fix SuperSlab disabled by default (HAKMEM_TINY_USE_SUPERSLAB)
- Fix profile variable naming consistency
- Add .gitignore patterns for large files

Performance:
- Phase 6-3: 4.79 M ops/s (has OOM risk)
- With SuperSlab: 3.13 M ops/s (+19% improvement)

This is a clean repository without large log files.

🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>

core/hakmem_ace_controller.h

@@ -0,0 +1,106 @@
+/* hakmem_ace_controller.h - ACE Learning Controller
+ *
+ * ACE (Adaptive Control Engine) コントローラー:
+ *   - Fast loop (0.5-1s): TLS capacity, drain threshold調整
+ *   - Slow loop (30-60s): Fragmentation/RSS対策
+ *   - UCB1学習で最適なノブ値を選択
+ */
+
+#ifndef HAKMEM_ACE_CONTROLLER_H
+#define HAKMEM_ACE_CONTROLLER_H
+
+#include "hakmem_ace_metrics.h"
+#include "hakmem_ace_ucb1.h"
+#include <stdint.h>
+#include <stdbool.h>
+#include <pthread.h>
+
+/* ========== TLS Capacity候補値 ========== */
+
+static const uint32_t TLS_CAP_CANDIDATES[] = {
+    16, 32, 64, 128, 256, 512
+};
+#define TLS_CAP_N_CANDIDATES (sizeof(TLS_CAP_CANDIDATES) / sizeof(TLS_CAP_CANDIDATES[0]))
+
+/* ========== Drain Threshold候補値 ========== */
+
+static const uint32_t DRAIN_THRESH_CANDIDATES[] = {
+    64, 128, 256, 512, 1024
+};
+#define DRAIN_THRESH_N_CANDIDATES (sizeof(DRAIN_THRESH_CANDIDATES) / sizeof(DRAIN_THRESH_CANDIDATES[0]))
+
+/* ========== ACE Controller 構造体 ========== */
+
+struct hkm_ace_controller {
+    /* 有効/無効フラグ */
+    bool enabled;
+    bool running;  /* スレッド実行中フラグ */
+
+    /* メトリクス */
+    struct hkm_ace_metrics current;
+    struct hkm_ace_metrics prev;
+
+    /* UCB1 バンディット（クラス毎） */
+    struct hkm_ucb1_bandit tls_cap_bandit[8];     /* TLS capacity学習 */
+    struct hkm_ucb1_bandit drain_bandit[8];       /* Drain threshold学習 */
+
+    /* 現在のノブ値 */
+    uint32_t tls_capacity[8];        /* Per-class TLS magazine capacity */
+    uint32_t drain_threshold[8];     /* Per-class remote free drain threshold */
+
+    /* Fast loop設定 */
+    uint64_t fast_interval_ms;       /* Fast loopインターバル（デフォルト500ms） */
+    uint64_t last_fast_tick_ms;      /* 前回Fast loop実行時刻 */
+
+    /* Slow loop設定 */
+    uint64_t slow_interval_ms;       /* Slow loopインターバル（デフォルト30000ms） */
+    uint64_t last_slow_tick_ms;      /* 前回Slow loop実行時刻 */
+
+    /* ログレベル */
+    int log_level;                   /* 0=off, 1=info, 2=debug */
+
+    /* バックグラウンドスレッド */
+    pthread_t bg_thread;
+    bool stop_requested;
+};
+
+/* ========== API ========== */
+
+/* 初期化（環境変数から設定読み込み） */
+void hkm_ace_controller_init(struct hkm_ace_controller *ctrl);
+
+/* 破棄（スレッド停止） */
+void hkm_ace_controller_destroy(struct hkm_ace_controller *ctrl);
+
+/* Tick処理（fast/slow両方実行） */
+void hkm_ace_controller_tick(struct hkm_ace_controller *ctrl);
+
+/* Fast loop（0.5-1s間隔） */
+void hkm_ace_controller_fast_loop(struct hkm_ace_controller *ctrl);
+
+/* Slow loop（30-60s間隔） */
+void hkm_ace_controller_slow_loop(struct hkm_ace_controller *ctrl);
+
+/* バックグラウンドスレッド開始 */
+void hkm_ace_controller_start(struct hkm_ace_controller *ctrl);
+
+/* バックグラウンドスレッド停止 */
+void hkm_ace_controller_stop(struct hkm_ace_controller *ctrl);
+
+/* ========== Inline Helpers ========== */
+
+/* コントローラーが有効か確認 */
+static inline bool hkm_ace_is_enabled(const struct hkm_ace_controller *ctrl) {
+    return ctrl && ctrl->enabled;
+}
+
+/* ログ出力ヘルパー */
+static inline bool hkm_ace_log_info_enabled(const struct hkm_ace_controller *ctrl) {
+    return ctrl && ctrl->log_level >= 1;
+}
+
+static inline bool hkm_ace_log_debug_enabled(const struct hkm_ace_controller *ctrl) {
+    return ctrl && ctrl->log_level >= 2;
+}
+
+#endif /* HAKMEM_ACE_CONTROLLER_H */