10-15% iowait on kvm instances on Ubuntu 14.04

[William Van Hevelingen]

Hi Sander,

Did you upgrade just the hypervisor kernels or the instance kernels as well?

Thanks,
William


On Tue, Jul 15, 2014 at 12:19 AM, Sander Smeenk <ssmeenk at freshdot.net>
wrote:

> Quoting William Van Hevelingen (wvan13 at gmail.com):
>
> > Does anyone know about any known issues with KVM on Ubuntu Trusty?
> > Linux kvm-andromeda 3.13.0-29-generic #53-Ubuntu SMP Wed Jun 4 21:00:20
> UTC
>
> Yes. And it's all related to 3.13.
> Upgrade it to 3.15 or downgrade to something other.
> I'll bet your IO-wait goes away.
>
> Guess where i rebooted this server with 3.15: https://8n1.org/9896/3a10
>
> With regards,
> -Sander.
> --
> | If you're too open-minded, your brain will fall out.
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-- 
Thanks,
William
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