上面这些标签是什么意思?

use*_*951 0 top

http://linux.about.com/od/commands/l/blcmdl1_top.htm

top - 17:05:46 up 7 min,  1 user,  load average: 227.48, 89.29, 36.78
Tasks: 1758 total,  25 running, 1555 sleeping,   1 stopped, 177 zombie
Cpu(s):  1.5%us, 32.1%sy, 58.0%ni,  4.7%id,  2.7%wa,  0.1%hi,  0.8%si,  0.0%st
Mem:  65951776k total, 20235624k used, 45716152k free, 10882480k buffers
Swap:  4194300k total,        0k used,  4194300k free,  3291164k cached
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那是什么意思?

http://linux.about.com/od/commands/l/blcmdl1_top.htm对此什么也没说?

我们的意思是用法。sy好像是系统。你?什么是尼?什么是身份证?什么是wa?什么是si?为什么这么多cpu时间花在ni和sy上?

Doo*_*nob 7

来自man top

   us, user    : time running un-niced user processes
   sy, system  : time running kernel processes
   ni, nice    : time running niced user processes
   wa, IO-wait : time waiting for I/O completion
   hi : time spent servicing hardware interrupts
   si : time spent servicing software interrupts
   st : time stolen from this vm by the hypervisor
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它没有说明什么id意思,但我认为它代表“空闲”,因为对于我的系统来说,它总是在大约 85% 左右,并且将所有数字相加得到 100%。