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Message-ID: <linux.kernel.3C6C53C0.E7562704@get2chip.com>
Date: 	Thu, 14 Feb 2002 16:18:08 -0800
From: ccroswh...@get2chip.com
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Subject: Problems with VM
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I am having difficulties with memory allocation in  teh 2.4.17 kernel.
Memory is being agressively given as cache but not retrieved to be used
as 'normal' ran.  Consequently, I will have a machine that has 5M
'normal' RAM, 800M 'cache' RAM and the reset coming out of swap space.
I need this 'cache' RAM placed back into the available RAM pool to be
used by applications.  Is there a patch/kernel configuration that I can
change this behavior?

Chris Croswhite
Get2Chip, Inc.

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Newsgroups: mlist.linux.kernel
Subject: Re: Problems with VM
X-To: ccroswh...@get2chip.com
Date: 	Fri, 15 Feb 2002 00:47:24 +0000 (GMT)
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From: Alan Cox <a...@lxorguk.ukuu.org.uk>
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> as 'normal' ran.  Consequently, I will have a machine that has 5M
> 'normal' RAM, 800M 'cache' RAM and the reset coming out of swap space.
> I need this 'cache' RAM placed back into the available RAM pool to be
> used by applications.  Is there a patch/kernel configuration that I can
> change this behavior?

2.4.18-rc1 should fix the worst of that. The rmap patches in 2.4.18-ac
definitely fix it
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Newsgroups: mlist.linux.kernel
Date: 	Thu, 14 Feb 2002 22:22:17 -0200 (BRST)
From: Rik van Riel <r...@conectiva.com.br>
X-To: <ccroswh...@get2chip.com>
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Subject: Re: Problems with VM
Message-ID: <linux.kernel.Pine.LNX.4.33L.0202142221250.12554-100000@imladris.surriel.com>
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On Thu, 14 Feb 2002 ccroswh...@get2chip.com wrote:

> I am having difficulties with memory allocation in  teh 2.4.17 kernel.
> Memory is being agressively given as cache but not retrieved to be used
> as 'normal' ran.  Consequently, I will have a machine that has 5M
> 'normal' RAM, 800M 'cache' RAM and the reset coming out of swap space.
> I need this 'cache' RAM placed back into the available RAM pool to be
> used by applications.  Is there a patch/kernel configuration that I can
> change this behavior?

If you feel adventurous, you could try my reverse mapping VM:

http://surriel.com/patches/2.4/2.4.17-rmap-12f


The changelog can be found at http://surriel.com/patches/Changelog.rmap

kind regards,

Rik
-- 
"Linux holds advantages over the single-vendor commercial OS"
    -- Microsoft's "Competing with Linux" document

http://www.surriel.com/		http://distro.conectiva.com/

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Date: Wed, 13 Mar 2002 18:30:13 +0100
From: Rik van Riel <r...@conectiva.com.br>
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Subject: [ANN] rmap VM kernel RPM
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X-Original-Date: Wed, 13 Mar 2002 14:24:22 -0300 (BRT)
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Hi,

by popular request I've integrated -rmap into Conectiva's kernel
RPM so people who don't like kernel patching can still test the
-rmap VM easily.

The -rmap (reverse mapping) VM is an attempt to fix some of the
fundamental virtual memory management problems that have plagued
Linux since its introduction to larger machines and more complex
workloads.  It is an attempt at a more flexible and robust VM.

While little performance tuning and optimisation has been done
yet, people have found it to perform better than the standard
VM for various workloads.

This version of the kernel RPM with -rmap VM is based on 2.4.18
as shipped by Conectiva and the latest stable -rmap version 12 VM.

These kernel RPMS, with stable -rmap VM, are available from:

	http://nl.linux.org/pub/linux/conectiva/kernel-rmap/
	ftp://nl.linux.org/pub/linux/conectiva/kernel-rmap/


More experimental versions of the -rmap VM can be found on:

	http://surriel.com/patches/
	http://linuxvm.bkbit.net/


kind regards,

Rik
-- 
<insert bitkeeper endorsement here>

http://www.surriel.com/		http://distro.conectiva.com/

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