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[Xen-users] Question on CPU usage

To: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-users] Question on CPU usage
From: Simon Hobson <linux@xxxxxxxxxxxxxxxx>
Date: Fri, 21 Nov 2008 16:54:47 +0000
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I have looked but not found anything in the docs - if I've been blind then just say so and point me at the right place !

If I have a 4 core machine, and run 5 Dom-Us, each configured to use one processor, how does Xen manage Dom-processor mapping ?

Does it dynamically assign Dom-Us to processors based on current load ?

Or is the assignment static and dependent on what order they are started up ? Eg, the first three will get a core each, but the last 2 will share one - or some variation.

And does this change if one or more Dom-Us are configured to use 2 processors ?

Simon Hobson

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