我的 MacBook 有时会变得非常不响应，鼠标不动然后开始随机移动（我想这些事件正在备份，然后系统会尝试稍后响应）。我重新安装了 macOS，结果相同。我每 60 秒运行一次 uptime，下面是一个示例：
19:51 up 21 days, 17:23, 2 users, load averages: 3.05 2.97 4.08
19:52 up 21 days, 17:24, 2 users, load averages: 2.31 2.79 3.93
19:53 up 21 days, 17:25, 2 users, load averages: 2.28 2.69 3.81
19:54 up 21 days, 17:26, 2 users, load averages: 2.41 2.64 3.72
21:54 up 21 days, 19:26, 2 users, load averages: 45.63 14.38 7.99
21:55 up 21 days, 19:27, 2 users, load averages: 18.85 12.14 7.55
22:07 up 21 days, 19:40, 2 users, load averages: 63.26 26.94 13.42
0:08 up 21 days, 21:41, 2 users, load averages: 88.60 37.63 18.42
0:09 up 21 days, 21:42, 2 users, load averages: 36.19 31.54 17.35
2:09 up 21 days, 23:42, 2 users, load averages: 56.03 37.23 20.38
2:10 up 21 days, 23:43, 2 users, load averages: 21.65 30.76 19.11
4:10 up 22 days, 1:43, 2 users, load averages: 64.40 43.73 24.81
6:10 up 22 days, 3:43, 2 users, load averages: 72.75 46.90 27.36
6:11 up 22 days, 3:44, 2 users, load averages: 29.99 39.28 25.75
6:20 up 22 days, 3:52, 2 users, load averages: 65.00 46.30 29.20
6:21 up 22 days, 3:53, 2 users, load averages: 27.92 38.92 27.60
6:22 up 22 days, 3:54, 2 users, load averages: 11.89 32.33 25.91
6:23 up 22 days, 3:55, 2 users, load averages: 6.41 27.05 24.37
当我从屏幕保护程序状态唤醒系统时，负载极高。总体 CPU 使用率似乎并不高 - top 命令当前显示使用率为 3-5%。内存似乎也没有耗尽。以下是 top 的当前输出：
Load Avg: 2.23, 4.07, 11.07 CPU usage: 2.83% user, 4.71% sys, 92.45% idle SharedLibs:
418M resident, 79M data, 137M linkedit.
MemRegions: 91406 total, 2385M resident, 141M private, 700M shared. PhysMem: 7028M used (1618M wired), 1418M unused.
配置 型号名称：MacBook Pro 型号标识符：MacBookPro7,1 处理器名称：Intel Core 2 Duo 处理器速度：2.4 GHz 处理器数量：1 核心总数：2 L2 缓存：3 MB 内存：8 GB
为什么 CPU 负载这么大？我正在运行 Chrome，打开了 5 个标签页和终端。就这样。