最近有一台运行 CentOS 6.7 的专用服务器，我们运行了更新并注意到 top 仅显示当前用户的进程。
[myuser@server2 ~]$ top -b -n1
top - 20:19:20 up 1 day, 10:09, 3 users, load average: 0.80, 0.50, 0.41
Tasks: 11 total, 1 running, 10 sleeping, 0 stopped, 0 zombie
Cpu(s): 0.2%us, 0.0%sy, 0.0%ni, 99.8%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Mem: 32880988k total, 26893324k used, 5987664k free, 140872k buffers
Swap: 1046520k total, 0k used, 1046520k free, 19532120k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
1648 myuser 20 0 98.8m …