|
一：top命令执行top命令后按数字1，就显示所有CPU核心使用率，但是当CPU核心数太多的时候，这个方法无法显示top - 14:13:07 up 2:59, 1 user, load average: 0.00, 0.04, 0.01 Tasks: 133 total, 1 running, 132 sleeping, 0 stopped, 0 zombie Cpu0 : 0.1%us, 0.3%sy, 0.2%ni, 98.9%id, 0.5%wa, 0.0%hi, 0.0%si, 0.0%st Cpu1 : 0.1%us, 0.4%sy, 0.3%ni, 98.7%id, 0.6%wa, 0.0%hi, 0.0%si, 0.0%st Mem: 1024984k total, 1001912k used, 23072k free, 45484k buffers Swap: 1052248k total, 0k used, 1052248k free, 749124k cached PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 506 oracle 16 0 1411m 17m 16m S 2.1 1.8 0:00.10 oracle 4833 root 15 0 90148 3396 2636 S 2.1 0.3 0:00.39 sshd 1 root 15 0 10368 680 572 S 0.0 0.1 0:00.59 init 2 root RT -5 0 0 0 S 0.0 0.0 0:03.71 migration/0 3 root 34 19 0 0 0 S 0.0 0.0 0:00.00 ksoftirqd/0 4 root RT -5 0 0 0 S 0.0 0.0 0:03.71 migration/1 5 root 34 19 0 0 0 S 0.0 0.0 0:00.00 ksoftirqd/1 6 root 10 -5 0 0 0 S 0.0 0.0 0:04.48 events/0 7 root 10 -5 0 0 0 S 0.0 0.0 0:00.00 events/1 8 root 10 -5 0 0 0 S 0.0 0.0 0:00.03 khelper 17 root 10 -5 0 0 0 S 0.0 0.0 0:00.01 kthread 22 root 10 -5 0 0 0 S 0.0 0.0 0:00.03 kblockd/0 23 root 10 -5 0 0 0 S 0.0 0.0 0:00.04 kblockd/1 24 root 14 -5 0 0 0 S 0.0 0.0 0:00.00 kacpid 195 root 12 -5 0 0 0 S 0.0 0.0 0:00.00 cqueue/0 196 root 12 -5 0 0 0 S 0.0 0.0 0:00.00 cqueue/1 199 root 10 -5 0 0 0 S 0.0 0.0 0:00.00 khubd 201 root 10 -5 0 0 0 S 0.0 0.0 0:00.00 kseriod二：sar命令我一般都是用这个命令查看所有CPU核心使用率的，因为我的服务器核心数有48个，top命令无法显示。[root@server2 ~]# sar -P ALL 1 10 Linux 2.6.18-274.el5 (server2.lanv.com) 07/06/2012 02:14:11 PM CPU %user %nice %system %iowait %steal %idle 02:14:12 PM all 0.00 0.00 0.00 0.00 0.00 100.00 02:14:12 PM 0 0.00 0.00 0.00 0.00 0.00 100.00 02:14:12 PM 1 0.00 0.00 0.00 0.00 0.00 100.00 02:14:12 PM CPU %user %nice %system %iowait %steal %idle 02:14:13 PM all 0.00 0.00 0.00 0.00 0.00 100.00 02:14:13 PM 0 0.00 0.00 0.00 0.00 0.00 100.00 02:14:13 PM 1 0.99 0.00 0.00 0.00 0.00 99.01 02:14:13 PM CPU %user %nice %system %iowait %steal %idle 02:14:14 PM all 0.00 0.00 0.00 0.00 0.00 100.00 02:14:14 PM 0 0.00 0.00 0.00 0.00 0.00 100.00 02:14:14 PM 1 0.00 0.00 0.00 0.00 0.00 100.00
(以上内容不代表本站观点。) --------------------------------- |
本網站是"非商業"(non-commercial)。
