[CentOS] CPU usage over estimated?

Les Mikesell lesmikesell at gmail.com
Thu Jun 4 21:14:05 UTC 2009


Scott Silva wrote:
> on 6-4-2009 5:37 AM Theo Band spake the following:
>> 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%.
>>
> This one is easy. 4 cpu's, 100% total each, a maximum of 400%.
> 
> Since one core is at 100%, the other 145% is spread across the other 3 cores.

Is there any reasonable way to figure out the available CPU capacity 
from an SNMP monitoring tool?  (You want to know if the reported >100% 
usage is a problem but you don't know anything else about the machine).

-- 
   Les Mikesell
     lesmikesell at gmail.com





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