为什么升级9.10后CPU 占用这么高

[fenix]

[yilan198711]

top下吧

[fenix]

op - 21:53:03 up 4:25, 4 users, load average: 1.21, 1.73, 1.58
Tasks: 167 total, 1 running, 166 sleeping, 0 stopped, 0 zombie
Cpu(s): 9.5%us, 43.0%sy, 0.0%ni, 44.2%id, 0.0%wa, 0.0%hi, 3.3%si, 0.0%st
Mem: 2060552k total, 1723900k used, 336652k free, 129196k buffers
Swap: 6032368k total, 0k used, 6032368k free, 1158452k cached

PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
1912 ntop 20 0 176m 30m 6020 S 100 1.5 258:27.95 ntop
2911 fenix 20 0 390m 119m 31m S 4 5.9 16:08.65 firefox
3796 fenix 20 0 53760 17m 11m S 4 0.8 0:17.63 gnome-terminal
1070 root 20 0 188m 50m 14m S 2 2.5 19:46.38 Xorg
2320 fenix 20 0 113m 37m 20m S 1 1.8 0:14.72 nautilus
47 root 15 -5 0 0 0 S 0 0.0 0:07.73 scsi_eh_3
14121 fenix 20 0 58204 21m 15m S 0 1.1 0:23.94 gnome-system-mo
14514 fenix 20 0 2468 1180 884 R 0 0.1 0:00.04 top
1 root 20 0 2528 1456 1084 S 0 0.1 0:01.07 init
2 root 15 -5 0 0 0 S 0 0.0 0:00.00 kthreadd

[jxhow]

代码： 全选

1912 ntop 20 0 176m 30m 6020 S 100 1.5 258:27.95 ntop 

这是什么东东 网络监控？