Re: KVM slow LAMP guest

[Wanpeng Li <wanpeng.li@hotmail.com>]

On 8/24/15 3:18 AM, Hansa wrote:
> On 16-7-2015 13:27, Paolo Bonzini wrote:
>> On 15/07/2015 22:02, "C. Bröcker" wrote:
>>>> What OS is this?  Is it RHEL/CentOS? If so, halt_poll_ns will be in 
>>>> 6.7
>>>> which will be out in a few days/weeks.
>>>>
>>>> Paolo
>>> OK. As said CentOS 6.6.
>>> But where do I put this parameter?
>> You can add "kvm.halt_poll_ns=500000" to the kernel command line.  If
>> you have the parameter, you have the
>> /sys/module/kvm/parameters/halt_poll_ns file.
> Hi,
>
> I upgraded to the CentOS 6.7 release which came out last month and as 
> promised the halt_poll_ns parameter was available.
> Last week I tested the availability status every 5 minutes on my 
> Wordpress VM's with the halt_poll_ns kernel param set on DOM0. I'm 
> pleased to announce that it solves the problem!

How much seconds to load your Wordpress site this time?

Regards,
Wanpeng Li

>
> My guess is that a lot people out there have the same problem but do 
> not know the solution. Why not put it in the kernel by default?
>
> Thanks a lot for all the help!
> - Hansa
>
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