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Re: [Xen-devel] Cpu pools discussion

To: Zhigang Wang <zhigang.x.wang@xxxxxxxxxx>
Subject: Re: [Xen-devel] Cpu pools discussion
From: Tim Deegan <Tim.Deegan@xxxxxxxxxx>
Date: Tue, 28 Jul 2009 10:19:29 +0100
Cc: George Dunlap <dunlapg@xxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>, Juergen Gross <juergen.gross@xxxxxxxxxxxxxx>, Keir Fraser <Keir.Fraser@xxxxxxxxxxxxx>
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At 01:41 +0100 on 28 Jul (1248745277), Zhigang Wang wrote:
> A usecase from me: I want a pool that passthrough pcpus to the mission
> critical domains. A scheduling algorithm will map vcpus to pcpus one
> by one in this pool. That will implement a reliable hard partitioning.
> although it will lose some benefit of virtualization.

That's easily done by setting affinity masks in the tools, without
needing any mechanism in Xen.

Tim.

-- 
Tim Deegan <Tim.Deegan@xxxxxxxxxx>
Principal Software Engineer, Citrix Systems (R&D) Ltd.
[Company #02300071, SL9 0DZ, UK.]

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