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Re: [Bug 1341195] Re: KVM guests getting slow by time

 

Hey guys!

I'm pretty sure that the following patch will fix your problems:

https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1346917
New kernel for Trusty: http://people.canonical.com/~arges/lp1346917/

My original BUG:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1338277

Cheers!
Thiago


On 28 July 2014 15:43, wolfgang.moch@xxxxxx <wolfgang.moch@xxxxxx> wrote:

> After updating a server 12.04. LTS including the new HWE stack support
> I've got the same problems.
> The guest (MS Server 2012R2) was running after startup for about 7 to 10
> min without problems, after this period the cpu utilisation for the kvm
> process increases more an more, the guest became sluggish.
> Most significant problem: file and printer services went slow but kept
> working, SQL-Server applications have crashed.
> Starting the previous kernel 3.11.0-26-generic was my workaround solving
> the problem for the moment.
> I
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1341195
>
> Title:
>   KVM guests getting slow by time
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1341195/+subscriptions
>

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https://bugs.launchpad.net/bugs/1341195

Title:
  KVM guests getting slow by time

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  There is a post with very similar symptoms on serverfault:

  http://serverfault.com/questions/609881/windows-server-2012-on-kvm-on-
  ubuntu-14-04-runs-well-for-a-while-and-then-slows/612084#612084

  
  Basically all kind of KVM guests are getting slow by time, both windows or linux. The more running guests, it happens sooner.
  Switching back to Saucy kernel is a good workaround.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: qemu-kvm 2.0.0+dfsg-2ubuntu1.1
  ProcVersionSignature: Ubuntu 3.13.0-29.53-generic 3.13.11.2
  Uname: Linux 3.13.0-29-generic x86_64
  NonfreeKernelModules: zfs zunicode zavl zcommon znvpair
  ApportVersion: 2.14.1-0ubuntu3.2
  Architecture: amd64
  Date: Sat Jul 12 22:18:49 2014
  SourcePackage: qemu
  UpgradeStatus: No upgrade log present (probably fresh install)

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References