Re: kvm-83 write performance raw

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Malinka Rellikwodahs wrote:

What version of kvm is this?  Is it kvm-68?  You'll have better luck with
something newer than that.

kvm-83 is the one with the problem, kvm-68 is working correctly.

kvm-68 and qcow2 both use cache=writeback by default which is less safe than cache=writethrough which is now the default.

But performance shouldn't be as bad as your seeing.

Regards,

Anthony Liguori

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