Method getStats

src/context/storage/CacheStore.ts:180–212

* 获取缓存统计信息

()

   * 获取缓存统计信息
   */
  getStats(): {
    size: number;
    maxSize: number;
    hitRate: number;
    memoryUsage: number;
    topKeys: { key: string; accessCount: number; lastAccess: number }[];
  } {
    this.cleanExpired();

    let totalAccess = 0;
    let memoryUsage = 0;
    const keyStats: { key: string; accessCount: number; lastAccess: number }[] = [];

    for (const [key, item] of Array.from(this.cache.entries())) {
      totalAccess += item.accessCount;
      memoryUsage += this.estimateItemSize(item);
      keyStats.push({
        key,
        accessCount: item.accessCount,
        lastAccess: item.lastAccess,
      });
    }

    keyStats.sort((a, b) => b.accessCount - a.accessCount);

    return {
      size: this.cache.size,
      maxSize: this.maxSize,
      hitRate: totalAccess > 0 ? totalAccess / (totalAccess + this.cache.size) : 0,
      memoryUsage,
      topKeys: keyStats.slice(0, 10), // 返回前10个最常访问的键
    };
  }

  /**
   * 清理过期项