[CentOS] centos 5.5 check memoray usage too high???
Scott Silva
ssilva at sgvwater.com
Wed Feb 2 23:17:16 UTC 2011
on 2/2/2011 1:58 PM mcclnx mcc spake the following:
> We have DELL R900 server with 128GB RAM (CENTOS 5.5)in it. This server only have one application running and few people use it.
>
> Every week I ata least get one or two messages from monitor tool mail to me say:
>
> Message=Memory Utilization is 92.02%, crossed warning (80) or critical (90) threshold.
>
> Since server have 128 GB RAM and only 1 application. I really don't belive that. Does there has some way can check memory utilitation ?
>
> Thanks.
Linux has a habit of using memory to store buffers and speed disk re-accesses.
As soon as an application needs that memory, it will be flushed if dirty and
released. Memory unused is memory not needed.
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