Memory use

[Rob]

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What Kernel are you running? as 2.4.20 has a bug in it, buffers for cache 
are NOT released... change kernel versions if you do....



Rob Morin
Dido Internet Inc.
Montreal, Canada
514-990-4444
http://www.dido.ca

----- Original Message ----- 
From: "Glenn Steen" <glenn.steen at GMAIL.COM>
To: <MAILSCANNER at JISCMAIL.AC.UK>
Sent: Wednesday, November 16, 2005 8:34 AM
Subject: Re: Memory use


On 16/11/05, Glenn Steen <glenn.steen at gmail.com> wrote:
> On 16/11/05, Martin Hepworth <martinh at solid-state-logic.com> wrote:
(snip)
> > > -----Original Message-----
> > > From: MailScanner mailing list [mailto:MAILSCANNER at JISCMAIL.AC.UK] On
> > > Behalf Of José Angel Blanco González
> > > Sent: 16 November 2005 12:39
> > > To: MAILSCANNER at JISCMAIL.AC.UK
> > > Subject: [MAILSCANNER] Memory use
> > >
(snip)
> > >                     total            used            free 
> > > shared
> > > buffers        cached
> > > Mem:            2840672    2812672     28000    0 
> > > 126556
> > > 2449792
> > > -/+ buffers/cache:            236324       2604348
> > > Swap:           1044184    77396         966788
(snip)
> Martin, AFAICS that'd be 2.7 GiB RAM (from the free output) which
> probably means 3 GiB - "share memory graphics", or something similar.
> So the tight situation would imply a very many MS clients, or a
> "trusty" ol' leak (or several), wouldn't you agree?
Argh! Think, then type....
As is perfectly obvious from the numbers, the RAM situation is normal
on this one... More or less all the memory in "buffers" and "cache"
will be returned when needed, so the swaping is not really due to a
tight situation at all (more probable is page age). ISTR that the
stock kernel of RH9 was a tad stupid when it came to swap priorities
etc, so that might give an ... illusion... of a tight RAM. But the
numbers above don't really show that.
Martins suggested vmstat will probably show that no (or next to no)
swaping is happening.

If I were you, I'd seriously think on moving to a more ... modern ...
distro/kernel.

--
-- Glenn
email: glenn < dot > steen < at > gmail < dot > com
work: glenn < dot > steen < at > ap1 < dot > se

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