thanks Mikkel ,
I would recomend this to every body who has good amount of memory (incresing the
shared memory) and concerned about
performence.
"Mikkel L. Ellertson" wrote:
> On Tue, 20 Feb 2001, RaghuNath L wrote:
>
> > Hi,
> >
> > I am running on redhat 6.2 with 2.2.18 kernel ,
> >
> > i have in cre sed shmax =0*400000 for 200000 in /opt/linux/include/asm/shparam.h
>file
> >
> > after this performence is really good but look at top out put it shows almost all
>the memory bieng consumed by what?
> >
> > i need to run vsim on this so i need atleast 1 gb free wil i be able to do that
>here even 1.9gb is consumed by os it self?
> >
> > or is there any thing wrong with thr shared memory?
> >
> > Mem: 2057392128 2047148032 10244096 26361856 1822961664 20733952
> > Swap: 4194582528 446464 4194136064
> > MemTotal: 2009172 kB
> > MemFree: 10004 kB
> > MemShared: 25744 kB
> > Buffers: 1780236 kB
> > Cached: 20248 kB
> > SwapTotal: 4096272 kB
> > SwapFree: 4095836 kB
> >
> > what is this buffers in the /proc/meminfo.
> >
> > please help me out
> >
> >
> Well, the free command makes it easyer to see, but basicly, most of the
> memory is being used for disk buffers. (Buffers: 1780236 kB) The
> reasion for there being so much memory used for buffers, and 10004K
> free is that free memory is wasted memory. Linux keeps a small amount
> of memory free at any time. the rest of what would be free memory is
> used for disk buffering (or disk cache). If a program needs memory, it
> give up the free memory, and then gives up buffers to get the rest of
> the memory and replace the free memory. (Simplifed explanation - if you
> want all the details, ask on the kernel list...)
>
> At the time of this information, your system had about 1.7G of memory
> that you can load programs into before you start using swap space.
> (Performance would suffer is you used all of it...)
>
> Mikkel
> --
>
> Do not meddle in the affairs of dragons,
> for you are crunchy and taste good with ketchup.
>
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--
Regards ph:5099025
RaghuNath L pager:9624395369
WSS-Team,Texas Instruments India.
You have to live on the edge of reality -
to make your dreams come true!!!
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