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how to find out whether hardware kvm is being used?
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Guru
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Joined: 15 Oct 2012
Posts: 521

PostPosted: Wed Jan 09, 2013 12:31 pm    Post subject: how to find out whether hardware kvm is being used? Reply with quote

hi,

I am trying qemu with hardware kvm but I am not sure is being used. There's no iommu irq activity in /proc/interrupts.

Both processes kvm-irqfd-clean and kvm-pit/28618 are idle.

:'-(
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audiodef
Watchman
Watchman


Joined: 06 Jul 2005
Posts: 6639
Location: The soundosphere

PostPosted: Wed Jan 09, 2013 1:51 pm    Post subject: Reply with quote

You'd have to know whether your hardware supports it and set it in the kernel. I don't remember which item to look for, but I think it shows up in cat /proc/cpuinfo. There's one for Intel and one for AMD.
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Hu
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Joined: 06 Mar 2007
Posts: 21489

PostPosted: Thu Jan 10, 2013 2:06 am    Post subject: Reply with quote

Intel CPUs with hardware assisted virtualization advertise vmx. AMD CPUs with hardware assisted virtualization advertise svm.
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Anon-E-moose
Watchman
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Joined: 23 May 2008
Posts: 6095
Location: Dallas area

PostPosted: Thu Jan 10, 2013 10:57 am    Post subject: Reply with quote

Load up the virtualization image without loading kvm and see how slow it goes. :^)

World of difference on my machine
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