Memory usage

ajatiti · 06-19-2007, 03:29 PM

Hi,

The Total memory usage on one of the Linux servers is 70%. I have found that the memory usage by each process is very less and sum of all those doesn't come out to be 70% of the total memory.
But when I run a command free to check the memory usage, it gives me about 70% of memory in use.
Any clues why?

Thanks,
AJ

whansard · 06-19-2007, 03:31 PM

it's being used as disk cache and buffers. it will be freed if programs need it.

ajatiti · 06-20-2007, 08:26 AM

What if the memory usage goes to 100% every now and then? I have to setup the threshold for monitoring purpose. What can be the threshold then?

easuter · 06-20-2007, 10:02 AM

What are you using to read the memory?
At the command line type free and read the line that says "-/+ buffers/cache".
Reading that line will give you the memory usage only, expluding the disk cache.

ajatiti · 06-22-2007, 01:43 PM

Thanks...This helps me..