How can I know the reason increase of cpu usage?

Latest response

Hi ,

I am using RHEL6.5 and am facing cpu usage issue after memory upgrade. I just upgrade physical memory, never changed system. But, my system cpu usage has increased from 11.0%us to 14.6%us. How can I check the reason ?

Before.

top - 11:07:27 up 122 days, 12:23, 1 user, load average: 2.24, 2.28, 2.27
Tasks: 454 total, 2 running, 452 sleeping, 0 stopped, 0 zombie
Cpu(s): 11.0%us, 3.4%sy, 0.0%ni, 85.4%id, 0.1%wa, 0.0%hi, 0.1%si, 0.0%st
Mem: 41273364k total, 40532264k used, 741100k free, 262804k buffers
Swap: 2097144k total, 1582660k used, 514484k free, 7042928k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
29780 root 20 0 26.2g 14g 1.7g S 221.7 36.9 8023:18 nts
3705 root 20 0 7477m 6.6g 357m S 3.2 16.7 250:40.53 qpm
2685 root 20 0 6895m 1.3g 1.3g S 2.5 3.4 2146:50 timestensubd
2671 root 20 0 21.4g 1.3g 1.0g S 1.3 3.4 922:41.07 java
2881 root 20 0 5210m 1.2g 1.1g S 6.9 2.9 4761:53 timestenrepd
7670 root 20 0 4641m 1.0g 1.0g S 0.0 2.6 13:54.27 ttcserver
7090 root 20 0 4814m 126m 121m S 0.0 0.3 15:14.20 subdmodule
5879 root 20 0 672m 64m 62m R 200.3 0.2 352834:51 mrxd

After.

top - 11:16:51 up 5 days, 7:49, 1 user, load average: 2.48, 2.44, 2.44
Tasks: 448 total, 2 running, 446 sleeping, 0 stopped, 0 zombie
Cpu(s): 14.6%us, 4.3%sy, 0.0%ni, 80.9%id, 0.2%wa, 0.0%hi, 0.1%si, 0.0%st
Mem: 66095108k total, 45562896k used, 20532212k free, 333884k buffers
Swap: 2097144k total, 0k used, 2097144k free, 9638268k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
5641 root 20 0 672m 308m 273m R 202.0 0.5 15333:05 mrxd
7237 root 20 0 27.1g 15g 1.8g S 196.1 24.6 11478:19 nts
6990 root 20 0 5212m 1.2g 1.2g S 5.9 1.9 371:18.33 timestenrepd
6539 root 20 0 7500m 7.3g 358m S 3.9 11.6 227:44.85 qpm
1738 root 20 0 0 0 0 S 2.0 0.0 61:31.07 jbd2/sdb1-8
2687 root 20 0 5139m 1.4g 1.4g S 2.0 2.2 160:02.89 timestensubd
5156 root 20 0 27.4g 1.7g 1.0g S 2.0 2.7 80:10.92 java

Thank you.

ìJ

Responses