Re: [Xen-users] how much memory for dom0?

To:	maillists0@xxxxxxxxx
Subject:	Re: [Xen-users] how much memory for dom0?
From:	Grant McWilliams <grantmasterflash@xxxxxxxxx>
Date:	Wed, 30 Sep 2009 11:26:17 -0700
Cc:	xen-users mailing list <xen-users@xxxxxxxxxxxxxxxxxxx>
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On Wed, Sep 30, 2009 at 10:59 AM, <maillists0@xxxxxxxxx> wrote:

I'm planning my first production xen instance. My question is about how to determine how much memory I need for Dom0.

The scenario is simple. I have a machine with 12G of ram. I want to run a single web server as a DomU, giving it as much cpu and memory as possible. The docs say that Dom0 needs a minimum of 512M. Am I likely to need more than that? Is there a method of figuring what a Dom0 needs? What factors affect this? What's the realistic minumum for a machine with a lot of network traffic?

If this question is answered elsewhere and I missed it, feel free to curtly point me in the right direction. Any help is appreciated.

Let it run as default and monitor the Dom0 memory usage and decide from there. I usually run my Dom0s with 512MB.

Grant McWilliams

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Re: [Xen-users] how much memory for dom0?