Can one of you please explain the output of "free"?

[Srini Amble <samble@xxxxxxxxxxxx>]

I have Red Hat 7.3 running on my server. I have disabled all my 
applications with the exception of one application from "Intel". I 
executed "free" command to check on the memory usage. I have 512 MB of 
RAM. The amount of "free" memory keeps reducing while the "buffers" 
count keeps increasing.

1. How do I track which process is responsible for creating additional 
buffers because of which the free memory is decreasing?
2. Do I have to be concerned when the free memory turns about to be too low?
3. Is there anything I can do to keep the memory usage in check?

Thanks for any useful pointer.

Srini


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