From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Vinicius <jdob@ig.com.br>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Kernel doesn't free Cached Memory
Date: Fri, 22 Jul 2005 15:49:49 +0100 [thread overview]
Message-ID: <1122043789.9478.18.camel@localhost.localdomain> (raw)
In-Reply-To: <20050722_112730_062779.jdob@ig.com.br>
On Gwe, 2005-07-22 at 08:27 -0300, Vinicius wrote:
> Hi all!
>
> I have a server with 2 Pentium 4 HT processors and 32 GB of RAM, this
> server runs lots of applications that consume lots of memory to. When I stop
> this applications, the kernel doesn't free memory (the memory still in use)
See any FAQ on the Linux memory management - memory is reclaimed when
needed not when nobody is using it. That makes things more efficient.
> and the server cache lots of memory (~27GB). When I start this applications,
> the kernel sends "Out of Memory" messages and kill some random
> applications.
Some RHEL3 kernels had a problem with very large memory sizes and 2.4.
That should not be the case in the current RHEL3 kernels. 2.6 handles
very large systems a lot lot better, and of course the fact real
computers now have 64bit processors has also rather improved life.
Alan
next prev parent reply other threads:[~2005-07-22 14:25 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-07-22 11:27 Kernel doesn't free Cached Memory Vinicius
2005-07-22 11:41 ` Bernd Petrovitsch
2005-07-22 13:06 ` linux-os (Dick Johnson)
2005-07-23 5:35 ` Al Boldi
2005-07-25 16:28 ` Bill Davidsen
2005-07-26 5:23 ` Al Boldi
2005-07-22 14:49 ` Alan Cox [this message]
-- strict thread matches above, loose matches on Subject: below --
2005-07-22 16:00 Vinicius
2005-07-22 22:03 ` Alan Cox
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