WARNING - OLD ARCHIVES

This is an archived copy of the Xen.org mailing list, which we have preserved to ensure that existing links to archives are not broken. The live archive, which contains the latest emails, can be found at http://lists.xen.org/
   
 
 
Xen 
 
Home Products Support Community News
 
   
 

xen-users

Re: [Xen-users] swap size on dom0

To: Geoff Kirk <geoff.k@xxxxxxxxxxxxxxxxxxx>
Subject: Re: [Xen-users] swap size on dom0
From: Nico Kadel-Garcia <nkadel@xxxxxxxxx>
Date: Tue, 31 Jul 2007 07:50:26 +0100
Cc: xen-users@xxxxxxxxxxxxxxxxxxx
Delivery-date: Mon, 30 Jul 2007 23:47:40 -0700
Dkim-signature: a=rsa-sha1; c=relaxed/relaxed; d=gmail.com; s=beta; h=domainkey-signature:received:received:message-id:date:from:user-agent:mime-version:to:cc:subject:references:in-reply-to:content-type:content-transfer-encoding; b=dXHAlBCPx15LW5db4S0Hj05+muxRueoft7oxM/OBD7LDZWRHl2ZTKUvSeqcbLK/yPpFiEr5BGT7uZ6+3P3hL9kn2CrMew5ACoxLqDsFgkdYYfUMuOijjOsNtTGg9gPZ2c7h6c0Gzp3lj2EHyJLwpXNyBAeenYnEKqXK0PxmJZMc=
Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:user-agent:mime-version:to:cc:subject:references:in-reply-to:content-type:content-transfer-encoding; b=XC3r/uu/+zal5iHVfvmNfPkEtUMv2oUer0vDVAczgsB3OKUJoXP5HudtH0l3s2k1XXy351GZa3z3XeFD4plSUXgQp7IrSGsHPhhfS8DMh7B4iGiExSiB4MMMU9rf3Zh6EQvmd561qCUt97teuhcUtICU8jBZGdgSyOCV822bmwQ=
Envelope-to: www-data@xxxxxxxxxxxxxxxxxx
In-reply-to: <46AE78BD.1090205@xxxxxxxxxxxxxxxxxxx>
List-help: <mailto:xen-users-request@lists.xensource.com?subject=help>
List-id: Xen user discussion <xen-users.lists.xensource.com>
List-post: <mailto:xen-users@lists.xensource.com>
List-subscribe: <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-users>, <mailto:xen-users-request@lists.xensource.com?subject=subscribe>
List-unsubscribe: <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-users>, <mailto:xen-users-request@lists.xensource.com?subject=unsubscribe>
References: <718828c0707292126p499a0aefk4b0d35fc60f1f1fb@xxxxxxxxxxxxxx> <46ADDE17.6040305@xxxxxxxxxxxxxxxxxxx> <46AE4A9D.3080900@xxxxxxxxx> <46AE78BD.1090205@xxxxxxxxxxxxxxxxxxx>
Sender: xen-users-bounces@xxxxxxxxxxxxxxxxxxx
User-agent: Thunderbird 1.5.0.12 (Windows/20070509)
Geoff Kirk wrote:
Nice to know that, my dom0's (dom0_mem=64000) are only PIII's with 512 ram i must be just lucky i don't use virt-manager i guess. Works just fantastic on debian-etch. Of course this is at home and not really working very hard.

Geoff

Nico Kadel-Garcia wrote:
Geoff Kirk wrote:
Yes that sound a lot too much. 1st point i would make is to pass dom0_mem=xxxxx where xxxxx is number of kilobytes to assign to dom0 (not including domU's) 128 megabytes should be more than enough (xxxxx=128000). 2nd point as a general rule i find its then good to use same amount of swap space as i have ram in that case would be 128 megabytes. I have heard in the past it used to be suggested 2x ram for swap but that much is not often needed. In general a dom0 should not require so much ram because it doesn't as a rule do anything but serve domU's. 128 megabytes of each should be plenty.
Alas! The RHEL 5 and thus the CentOS 5 Dom0's fail to run virt-install or virt-manager without at lest 500 Meg of RAM available for Dom0.
You can use virt-manager for monitoring systems: for doing the libvirt based installer, though, whoosh! Lots of RAM, baby!

CentOS 5 and RHEL 5 are serious RAM pigs.

_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users

<Prev in Thread] Current Thread [Next in Thread>