[libvirt-users] qcow2 performance
Andreas Kurz
andreas at hastexo.com
Mon Feb 6 12:26:37 UTC 2012
Hello,
On 02/05/2012 11:31 PM, Stefan G. Weichinger wrote:
>
> Greets,
>
> I have to research performance-issues of a W2003-VM within KVM.
>
> Right now it's a qcow2-image-file w/ default settings within libvirt
> (configured by vmm ...)
>
> My question:
>
> what caching to use?
>
> writeback/writethrough/etc ... what to use for data integrity while not
> getting ultraslow performance?
A brief summary about qcow2 performance ... HTH
http://www.linux-kvm.org/page/Qcow2
Regards,
Andreas
>
> Found
>
> https://www.linuxfoundation.jp/jp_uploads/JLS2009/jls09_hellwig.pdf
>
> Is there any other list/doc what to use and why?
>
> Thanks, Stefan
>
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