[EMAIL PROTECTED] wrote:
Hey
I have a process thats eating up all my ram, in my case it's actually child
processes of apache who are doing it and i tried joining the apache mailing
list but got no reply from the list. The server in question has about a gig of
ram and after less then work day of running it has 150MB left, has not touched
it's swap and tons of httpd processes in sbwait mode. I would like to track
down the source of this ram stealer but i don't know how.
How do you know that RAM is leaking? Does it hit swap eventually?
Free RAM is wasted RAM. FreeBSD doesn't free ram until it needs it. When no
long used, it's moved to the buffer or the cache. It's not unusual for a
machine that's been running for a while to show very, very little free RAM.
This is by design. Ram in the buffer or cache can be converted to free RAM
with very little effort, and if the buffer or cache RAM can be reused instead
of freed, it improves performance greatly.
Make sure there's an actual process or processes and there really is a memory
leak before wasting time chasing this around. Run top -osize and watch to
see what processes at the top are using. Look at the active RAM in top and
see if that fills up without end. And leave the system running for a few
days. If there's a true leak, it'll need to use swap sooner or later.
--
Bill Moran
Potential Technologies
http://www.potentialtech.com
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