Date: Wed, 8 Mar 2006 17:56:36 +0000 From: Daniela <dgw@liwest.at> To: "Eugene" <genie@geniechka.ru>, <freebsd-questions@freebsd.org> Subject: Re: Strange memory problems Message-ID: <200603081756.36597.dgw@liwest.at> In-Reply-To: <005b01c642bb$23e007c0$1b12c055@genie> References: <005b01c642bb$23e007c0$1b12c055@genie>
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On Wednesday 08 March 2006 14:16, Eugene wrote: > Hi people, > > I have a strange problem with memory. > System is FreeBSD 5.3, 4GB physical memory. > Even in very quiet load, memory allocation statistics looks like this: > last pid: 38330; load averages: 0.67, 1.05, 1.03 up 6+06:50:14 > 15:52:30 > 159 processes: 2 running, 156 sleeping, 1 zombie > > Mem: 757M Active, 2673M Inact, 220M Wired, 107M Cache, 112M Buf, 7000K Free > Swap: 10G Total, 1884K Used, 10G Free > > That is, almost 3GB of memory is Inactive while free memory is almost used > up. > If I do 'ps axvf' and sum up the memory columns, I get RSS=1.5GB and > VSZ=1.9GB (approximately). > With Apache stopped, it goes down to RSS=0.5GB and VSZ=0.6G -- but Inactive > Memory remains above 2.5GB. > Is it a memory leak somewhere or what? That looks quite normal to me, apart from the zombie process. FreeBSD always attempts to occupy most of the RAM, because it's a very fast way of saving information, and after all a lot of RAM is of no use if there's nothing in it. So long as no other program needs it for more "important" information, there's nothing wrong with keeping a lot of "unimportant" stuff around in case it is needed again quickly. -- Hope is the worst of all evils, for it prolongs the torments of man.
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