On 3/8/2011 7:34 AM, Ben cried from the depths of the abyss: > For the original poster this page covers the memory usage quite well: > http://www.linuxhowtos.org/System/Linux%20Memory%20Management.htm > Thanks Guys! I Appreciate it! B-o-B > > On Tue, Mar 8, 2011 at 7:05 AM, Justin Krejci <jus at krytosvirus.com > <mailto:jus at krytosvirus.com>> wrote: > > Yep, you can see your swap usage is zero, additionally you can tweak > your vm.swappiness sysctl setting. I usually drop mine down to 10 to > reduce its preference of using swap on my laptop and servers when I > know my RAM capacity will be sufficient for normal operations. > > > Sent via BlackBerry from T-Mobile > > -----Original Message----- > From: Tony Yarusso <tonyyarusso at gmail.com > <mailto:tonyyarusso at gmail.com>> > Sender: tclug-list-bounces at mn-linux.org > <mailto:tclug-list-bounces at mn-linux.org> > Date: Mon, 7 Mar 2011 23:36:22 > To: TCLUG Mailing List<tclug-list at mn-linux.org > <mailto:tclug-list at mn-linux.org>> > Reply-To: TCLUG Mailing List <tclug-list at mn-linux.org > <mailto:tclug-list at mn-linux.org>> > Subject: Re: [tclug-list] Centos 5.5 WTF in Progress > > On Mon, Mar 7, 2011 at 10:41 PM, Mr. B-o-B <mr.chew.baka at gmail.com > <mailto:mr.chew.baka at gmail.com>> wrote: > > [bob at bigdaddy init.d]$ free -m > > total used free shared buffers > cached > > Mem: 3828 3804 24 0 83 > 3492 > > -/+ buffers/cache: 228 3600 > > Swap: 2000 0 2000 > > There's not actually anything terribly concerning here. Look at the > *second* line - you only have 228MB of RAM actually being used "for > real" - the rest is just cache. The Linux kernel is designed to make > use of all available memory for performance reasons, so it will keep > loading things as caches until it runs out of stuff to load or RAM to > fill. The second line tells you how much is in use disregarding those > caches. > > > Here is the output from ps aux. It looks like java is out of > control. Is > > this normal? > > Yes, Java has a reputation for being a resource hog. > > - Tony