Need help on sar command.

 
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Operating Systems Linux Red Hat Need help on sar command.
# 1  
Old 09-30-2015
Need help on sar command.

Hi,

how to find out actual utilization of memory using sar -r in Linux, I understand Linux keep entire memory in cache/buffers.

I would like to know how to find out actual usage of memory
# 2  
Old 09-30-2015
Quote:
Originally Posted by manoj.solaris
I would like to know how to find out actual usage of memory
Look for anything that's not cache...

Linux is not unique in using "entire memory" in cache/buffers. I can't think of a major OS which doesn't. Empty memory sitting around doing nothing is a waste in a multitasking system.
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