Re: [CentOS] centos 5.5 check memoray usage too high???

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.