The "free" command reports real memory util as
used, shared, buffers and cached.  But what are the
definitions of the terms?  There's no mention of them
in the man pages for free, top, or vmstat.

It's been about a dozen years since I got my BS in
CompSci, but my recollection is...

 used      is used by user-space processes
 shared    is used for shared memory segments
 buffers   is used for kernel network and streams buffering
 cached    is used for file system caching

?

steve
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