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https://issues.apache.org/jira/browse/CLOUDSTACK-904?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13819096#comment-13819096
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Arnaud G commented on CLOUDSTACK-904:
-------------------------------------
Hello,
I created CLOUDSTACK-5071 to follow up on this issue, however it seems that it
was quite unnoticed despite the fact that this bug is critical for KVM.
> CloudStack export the CPU as a socket not core
> ----------------------------------------------
>
> Key: CLOUDSTACK-904
> URL: https://issues.apache.org/jira/browse/CLOUDSTACK-904
> Project: CloudStack
> Issue Type: Bug
> Security Level: Public(Anyone can view this level - this is the
> default.)
> Components: KVM
> Affects Versions: pre-4.0.0, 4.0.0
> Reporter: Ahmad Saif
>
> I've a VM that's running (Windows 2008 Standard R2 64bit) which was working
> on a 4 cores offer. when I upgraded the service offer to 8 cores and checked
> the VM I noticed that it still have only 4 cores !!
> I dig a little bit on the windows machine itself, and found that it see the
> CPUs as sockets not cores and this version of windows support only up to 4
> cores.
> when I checked the vm XML file on the host I saw that the CPU is exported as
> following :
> <vcpu>8</vcpu>
> and it should be exported as following:
> <vcpu>1</vcpu> <cpu>
> <topology sockets='1' cores='8' threads='1'/>
> </cpu>
> otherwise in such systems where you are limited with the sockets number you
> cannot have the required service offer.
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