memory usage displsy

Dan Nelson dnelson at
Tue Sep 1 20:41:49 UTC 2009

In the last episode (Sep 01), Bill Moran said:
> In response to Per olof Ljungmark <peo at>:
> > What is a good way to find out how memory is used? Have a 6.4 box where
> > memory is used by something but I fail to see what is using it - tried
> > different switches to ps(1), tried the stat tools but a big chunk of
> > memory does not show at all.
> > 
> > A proper tool for analyzing memory usage "live", this is a production
> > box?
> I've always been able to get what I need from top.  You can do -o res to
> sort by resident memory usage, which helps.

ps will sort by memory usage when given the -m flag.  Also check ipcs -a to
see if there are any sysv shared memory segments hanging arnound.  If you
don't see anything using the memory, where are you seeing that "something"
is using it?

	Dan Nelson
	dnelson at

More information about the freebsd-questions mailing list