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[Xen-devel] Memory oversubscription

To: xen-devel@xxxxxxxxxxxxxxxxxxxxx
Subject: [Xen-devel] Memory oversubscription
From: Todd Jones <stjones@xxxxxxxxxxx>
Date: Tue, 14 Sep 2004 17:39:19 -0500
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Hi.  First of all, thanks for Xen.  It's terrific!

I'm interested in doing memory oversubscription and am wondering if Xen can do this (now or in the future).
For example, on a machine with 100MB available physical memory, can I:
1. Create a domain with a 90MB allocation
2. Inflate a balloon in that domain and return say 40MB back to Xen

I know there are mechanisms for doing 1 and 2...

3. Allocate a second domain with an allocation of 50MB?

Thanks,

--Todd


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