[14.04] KVM Windows 2008 R2 Guest, Fica lento inexplicavelmente

[Armindo Silva]

The version of the qemu package on that ppa is older than the one currently
on trusty repos.

I have a similar problem, I updated a host from 13.10 to 14.04 and since
then some of the virtual machines have been experiencing network connection
problems - the connection freezes and pinging them goes from a couple of ms
to several seconds. I made some preliminary tests like changing the network
devices to and from virtio but the problem still persists.
Rebooting the virtual machines "solves" this for a couple of hours.

Any ideas/pointers?
Thank you.

Regards,
Armindo



On Tue, Jul 8, 2014 at 3:06 AM, Serge Hallyn <serge.hallyn at ubuntu.com>
wrote:

> Hi,
>
> could you re-try with the qemu version from
> ppa:ubuntu-virt/virt-daily-upstream
> (https://launchpad.net/~ubuntu-virt/+archive/virt-daily-upstream) and
> let us know if that still has the same issue?
>
> Quoting Osvaldo Filho (arquivostcf at gmail.com):
> > [14.04] KVM Windows 2008 R2 Guest, Fica lento inexplicavelmente
> >
> > Ubuntu 14.04 Server
> > qemu-kvm  2.0.0+dfsg-2ubuntu1. amd64
> > libvirt-bin  1.2.2-0ubuntu13.1
> > Linux 3.13.0-30-generic #55-Ubuntu SMP
> >
> > sysctl.conf
> >
> > kernel.sched_min_granularity_ns=10000000
> > kernel.sched_wakeup_granularity_ns=15000000
> > vm.dirty_ratio=10
> > vm.dirty_background_ratio=5
> > vm.swappiness=10
> > kern.timecounter.hardware=ACPI-fast
> >
> > win2k8r2.xml
> > ...
> >   <features>
> >     <acpi/>
> >     <apic/>
> >     <pae/>
> >     <hyperv>
> >       <relaxed state='on'/>
> >       <vapic state='on'/>
> >       <spinlocks state='on' retries='4096'/>
> >     </hyperv>
> >   </features>
> >   <cpu mode='custom' match='exact'>
> >     <model fallback='allow'>core2duo</model>
> >     <vendor>Intel</vendor>
> >   </cpu>
> >   <clock offset='localtime'>
> >     <timer name='hypervclock' present='yes'/>
> >     <timer name='hpet' present='no'/>
> >   </clock>
> > ...
>
> > --
> > ubuntu-server mailing list
> > ubuntu-server at lists.ubuntu.com
> > https://lists.ubuntu.com/mailman/listinfo/ubuntu-server
> > More info: https://wiki.ubuntu.com/ServerTeam
>
>
> --
> ubuntu-server mailing list
> ubuntu-server at lists.ubuntu.com
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>



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little way past them into the impossible."
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