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How can I assign more cores to Windows using KVM VCPU with Nova?

asked 2013-07-28 17:59:06 -0500

theFog gravatar image

updated 2013-07-29 17:13:32 -0500

smaffulli gravatar image

When nova through KVM assigns VCPU's or "cores" they show up as physical CPU's inside of Windows rather than a single CPU with X cores. Is there a way to change that behavior to support assigning more than 4C to a WIndows 2008 R2 Standard server ?

The Physical host is running Dual Intel E5-2660 2.2Ghz 8c processors and nova seems to launch the windows servers with a core2duo -smp 8,sockets=8,cores=1, threads=1

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answered 2014-04-27 00:51:56 -0500

tatototino gravatar image

I think There is an way to fix this problem set up the windows image with hw_cpu_topology metadata.

Do you get a fix for this problem?

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answered 2014-04-28 12:27:40 -0500

The Metadata is:

Number of CPU sockets
Number of cores per socket
Number of threads per core


Flavor Metadata

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Asked: 2013-07-28 17:59:06 -0500

Seen: 1,115 times

Last updated: Apr 28 '14