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
What's the meaning of that?
http://linux.about.com/od/commands/l/blcmdl1_top.htm doesn't say anything about that?
us means usage. sy seems to be system. ni? What is ni? What is id? What is wa? what is si? Why so much cpu time is spent on ni and sy?