[libvirt-users] qcow2 performance

[Stefan G. Weichinger]

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?

Found

https://www.linuxfoundation.jp/jp_uploads/JLS2009/jls09_hellwig.pdf

Is there any other list/doc what to use and why?

Thanks, Stefan