7 messages in com.xensource.lists.xen-develRe: [Xen-devel] Memory limits?
FromSent OnAttachments
Rene Auberger21 Feb 2005 14:28 
Mark Williamson21 Feb 2005 14:56 
Puthiyaparambil, Aravindh22 Feb 2005 08:41 
M.A. Williamson22 Feb 2005 09:05 
Rene Auberger22 Feb 2005 11:27 
Robin Green22 Feb 2005 11:34 
Mark Williamson22 Feb 2005 12:21 
Subject:Re: [Xen-devel] Memory limits?
From:Mark Williamson (Mark@cl.cam.ac.uk)
Date:02/22/2005 12:21:57 PM
List:com.xensource.lists.xen-devel

Are there any plans on implementing swapping?

I got a vague impression this was being thought about but I don't know. Is anyone out there looking at this at the moment?

It's really comfortable to start multiple guests with more memory than actually installed in the machine to have it available in case they need it (without manually tweaking something during the systems already run). That's one of the features I really like in VMWare ESX.

The main thing that swapping in the VMM buys you is the ability for VMs to grow and shrink in physical memory footprint as different VMs increase / decrease their workload. An (arguably preferable) way to implement this in Xen would be to use the balloon driver to automatically adjust memory footprints. We know roughly what this should look like - volunteers would be good ;-)

Cheers, Mark

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