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