[CentOS] CPU usage over estimated?

Theo Band theo.band at greenpeak.com
Thu Jun 4 15:20:18 UTC 2009


Didi wrote:
> On Thu, Jun 4, 2009 at 1:37 PM, Theo Band <theo.band at greenpeak.com> wrote:
>   
>> I have a quad core CPU running Centos5.
>>
>> When I use top, I see that running processes use 245% instead of 100%.
>> If I use gkrellm, I just see one core being used 100%.
>>     
>
> Press 1 in top to see the per CPU info
>   
Tasks: 165 total,   3 running, 162 sleeping,   0 stopped,   0 zombie
Cpu0  :  0.5%us,  0.8%sy, 19.6%ni, 79.1%id,  0.0%wa,  0.0%hi,  0.0%si, 
0.0%st
Cpu1  :  0.0%us,  1.2%sy, 98.6%ni,  0.0%id,  0.0%wa,  0.0%hi,  0.1%si, 
0.0%st
Cpu2  :  0.0%us,  0.0%sy, 13.0%ni, 87.0%id,  0.0%wa,  0.0%hi,  0.0%si, 
0.0%st
Cpu3  :  1.1%us,  0.8%sy, 74.5%ni, 23.3%id,  0.0%wa,  0.0%hi,  0.3%si, 
0.0%st
Mem:   6097924k total,  5837764k used,   260160k free,   126288k buffers
Swap:  4194296k total,      112k used,  4194184k free,  5119488k cached

  PID USER      PR  NI  VIRT  RES SWAP  SHR S %CPU %MEM    TIME+  COMMAND
 4742 made      39  15  117m  24m  93m  11m R 262.8  0.4   0:49.35
eldo_64.exe
18037 thba      34  15  340m 277m  63m  45m R 244.9  4.7 275:09.10 ic

This doesn't make a difference for the listed process.

Theo



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