84 lines
2.8 KiB
C
84 lines
2.8 KiB
C
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/* hakmem_ace_metrics.h - ACE Learning Layer Metrics Collection
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*
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* メトリクス収集システム:
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* - Fast metrics (1Hz): throughput, LLC miss, mutex wait, backlog
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* - Slow metrics (60s): fragmentation ratio, RSS
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* - Inline helpers for hot-path tracking
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*/
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#ifndef HAKMEM_ACE_METRICS_H
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#define HAKMEM_ACE_METRICS_H
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#include <stdint.h>
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#include <stdbool.h>
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#include <stdatomic.h>
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#include <time.h>
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/* メトリクス構造体 */
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struct hkm_ace_metrics {
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/* Fast metrics (updated every 0.5-1s) */
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uint64_t throughput_ops; /* Operations per second */
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double llc_miss_rate; /* LLC miss rate (0.0-1.0) */
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uint64_t mutex_wait_ns; /* Cumulative mutex contention time */
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uint32_t remote_free_backlog[8]; /* Per-class remote free backlog */
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/* Slow metrics (updated every 60s) */
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double fragmentation_ratio; /* allocated / reserved bytes */
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uint64_t rss_mb; /* Resident set size in MB */
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/* Timestamp */
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uint64_t timestamp_ms; /* Collection timestamp */
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};
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/* グローバルカウンタ（hot-path用） */
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extern _Atomic uint64_t g_ace_alloc_count;
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extern _Atomic uint64_t g_ace_free_count;
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extern _Atomic uint64_t g_ace_mutex_wait_ns;
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/* 初期化・破棄 */
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void hkm_ace_metrics_init(void);
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void hkm_ace_metrics_destroy(void);
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/* メトリクス収集 */
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void hkm_ace_metrics_collect(struct hkm_ace_metrics *out);
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void hkm_ace_metrics_collect_fast(struct hkm_ace_metrics *out);
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void hkm_ace_metrics_collect_slow(struct hkm_ace_metrics *out);
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/* Hot-path inline helpers */
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/* アロケーションカウント（高速インクリメント） */
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static inline void hkm_ace_track_alloc(void) {
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atomic_fetch_add_explicit(&g_ace_alloc_count, 1, memory_order_relaxed);
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}
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/* フリーカウント（高速インクリメント） */
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static inline void hkm_ace_track_free(void) {
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atomic_fetch_add_explicit(&g_ace_free_count, 1, memory_order_relaxed);
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}
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/* ミューテックス待機時間トラッキング
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* 使い方:
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* uint64_t t0 = hkm_ace_mutex_timer_start();
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* pthread_mutex_lock(&lock);
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* hkm_ace_mutex_timer_end(t0);
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*/
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static inline uint64_t hkm_ace_mutex_timer_start(void) {
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struct timespec ts;
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clock_gettime(CLOCK_MONOTONIC, &ts);
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return (uint64_t)ts.tv_sec * 1000000000ULL + (uint64_t)ts.tv_nsec;
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}
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static inline void hkm_ace_mutex_timer_end(uint64_t start_ns) {
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struct timespec ts;
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clock_gettime(CLOCK_MONOTONIC, &ts);
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uint64_t end_ns = (uint64_t)ts.tv_sec * 1000000000ULL + (uint64_t)ts.tv_nsec;
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uint64_t delta = (end_ns > start_ns) ? (end_ns - start_ns) : 0;
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atomic_fetch_add_explicit(&g_ace_mutex_wait_ns, delta, memory_order_relaxed);
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}
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/* LLC miss monitoring (rdpmc wrapper) */
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bool hkm_ace_llc_available(void);
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void hkm_ace_llc_read(uint64_t *misses, uint64_t *references);
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#endif /* HAKMEM_ACE_METRICS_H */
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