Re: [libvirt-users] Sluggish performance with virtio and Win10

2016-02-18 10:13 GMT+01:00 Martin Kletzander <mkletzan(a)redhat.com&gt;: > On Thu, Feb 18, 2016 at 08:49:38AM +0100, John Obaterspok wrote: > >> Hello, >> >> I'm using virt-manager on my F23 box to run a Windows 10 image but the >> performance is so bad it's killing me. >> >> I have "vmx" flag in /proc/cpuinfo >> >> # lsmod |grep kvm >> kvm_intel 167936 6 >> kvm 503808 1 kvm_intel >> >> virtio-win-0.1.112-1.noarch >> >> But no virtio modules loaded. Should they be loaded nowadays? >> > > Not on the host AFAIK. > > The disk format used is vmdk with no caching and native mode. >> The io is 100% in windows task manager performing less than 1MB/s >> >> Any clues? >> >> > What are the figures from the host? What is qemu doing and what are the > other processes and devices doing? > > What is the best way to find this out?

-- john