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xen-devel
RE: [Xen-devel] [PATCH] xen, tools/python/xen: pincpu support, vcpus, ad
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To: |
"Andrew Theurer" <habanero@xxxxxxxxxx>, "Mark Williamson" <mark.williamson@xxxxxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxx> |
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Subject: |
RE: [Xen-devel] [PATCH] xen, tools/python/xen: pincpu support, vcpus, add vcpu to cpu map |
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From: |
"Ian Pratt" <m+Ian.Pratt@xxxxxxxxxxxx> |
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Date: |
Thu, 14 Apr 2005 20:23:55 +0100 |
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Cc: |
Ryan Harper <ryanh@xxxxxxxxxx>, Sam Gill <samg@xxxxxxxxxxxxx> |
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Thu, 14 Apr 2005 19:23:45 +0000 |
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[Xen-devel] [PATCH] xen, tools/python/xen: pincpu support, vcpus, add vcpu to cpu map |
> > Yep. 'xm info' should give the total number of logical
> CPUs, then show
> > the hierarchy: nodes, sockets, cores, hyperthreads (in that order,
> > which is how they should be enumerated to get the scalar
> CPU number).
>
> Any thoughts how this would work with hotplug cpu support (in
> xen)? Do we currently leave gaps in the cpu numbering for
> missing cpus?
>
> For example, we have a 4 socket HT system with 2 chips
> installed, available cpu id's may look like 0,1,3,4.
Interesting point. What does Linux do? I guess it has a sparse set of
CPU id's?
Ian
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