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Re: High Memory Usage



On Wed, 15 Dec 2004 12:27:02 +0100, Alexander Dalloz <ad+lists uni-x org> wrote:
> Am Mi, den 15.12.2004 schrieb Beri, Rohit um 11:51:
> 
> > > I have had FC3 running on Dell Latitue 840 for about 3 weeks now.
> > > around 3 days back I realized machine being a little slow and noticed
> > > that out of 1gb of RAM, at all times the system is using 920+MB of
> > > physical ram. Now based on my windows knowledge its not normal...
> > > windows right after login, with no apps running takes around 180mb...
> > > while FC3 runs at 900+mb right after login.
> > >
> > > to release some memory i went to service and shut down most of them,
> > > like the ssh, ftp, httpd and a few others, but still when I restart
> > > the memory usage is same 900+mb... any thoughts as to it being normal
> > > or something i need to watch ...
> > >
> > > Thanks,
> > >
> > > -B
> > >
> > here what what i see when i run "free"
> >
> > [root localhost ~]# free
> >              total       used       free     shared    buffers     cached
> > Mem:       1035084     994480      40604          0      22696     871120
> > -/+ buffers/cache:     100664     934420
> > Swap:      2031608          0    2031608
> > [root localhost ~]#
> 
> This question comes up again and again. Please have a look at the
> "cached" value. It is pretty normal what you observe. Unused real memory
> (RAM) is wasted memory. The kernel automatically uses all the RAM in
> your machine and what's not needed to run current processes it uses for
> buffering and caching. See i.e.
> 
> http://learnlinux.tsf.org.za/courses/build/internals/ch05.html
> Alexander

Sorry for break in...
Can any option that cause the system release the cache memory after
customize value ?


Ringo


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