Le Mon, Jan 23, 2012 at 09:28:37AM +0100, David Cure ecrivait :
>
> I use several kvm box, and no problem at all except for 1
> application that have bad response time.
>
> The VM runs Windows 2008R2 and the application is an
> client-server app develop with progress software and talk to an Oracle
> databasei (on another server) and we access this app with RDS/TSE.
> The physical server runs Debian testing to have qemu-kvm 1.0 and
> linux kernel 3.1 and libvirt 0.9.8. We use virtio for disk and network
> and use the last driver for Windows (from RH).
>
> We have 2 references servers : one physical and one running
> Vmware.
>
> Response time :
> o physical = 7s
> o VM under vmware = 8s
> o VM under KVM = 12s (to complete with qemu-kvm 0.12.5 and
> kernel 2.6.32 we have 22s ...).
>
> I attach the libvirt xml of my vm.
>
> How can I see what's append ? Do you have idea to increase
> performance ?
no one interesting to try to track this issue where kvm is so
slow ?
David.
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