新闻公告

top发现cpu %s高居不下，cpu占用99%， %s : Steal time is the percentage of time a virtual CPU waits for a real

CPU while the hypervisor is servicing another virtual processor.

dom0 cpu 完全100%占用，所有命令基本上都无法执行，同时伴随大量cpu死锁的类似错误：
 kernel:BUG: soft lockup - CPU#3 stuck for 22s! [miniserv.pl:2240]
 kernel:BUG: soft lockup - CPU#15 stuck for 22s! [miniserv.pl:7037]

最后发现是2个利用VPS挖比特币矿等的客户导致的，关闭后，立马恢复正常

xm shutdown vm1765 &
xm shutdown vm1761 &

现象描述：

When you run the Linux top command, you'll see a realtime view of key performance metrics. One of the lines is for the CPU:

top

Two metrics you might have some experience with already are %id (percent idle) and %wa (percent I/O wait).

If %id is low, the CPU is working hard and doesn't have much excess capacity. If %wa is high,

the CPU is ready to run, but is waiting on I/O access to complete (like fetching rows from a database table stored on the disk).

%st, or percent steal time is the last CPU metric displayed.