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Re: [Qemu-devel] qemu and transparent huge pages


From: Michael Tokarev
Subject: Re: [Qemu-devel] qemu and transparent huge pages
Date: Sun, 16 Sep 2012 15:19:30 +0400
User-agent: Mozilla/5.0 (X11; Linux i686 on x86_64; rv:10.0.6esrpre) Gecko/20120817 Icedove/10.0.6

So, is the patch okay?

Thanks,

/mjt

On 15.08.2012 19:03, Michael Tokarev wrote:
> On 15.08.2012 18:26, Avi Kivity wrote:
>> On 08/15/2012 05:22 PM, Michael Tokarev wrote:
>>
>>>>
>>>> Please provide extra info, like the setting of
>>>> /sys/kernel/mm/transparent_hugepage/enabled.
>>>
>>> That was it - sort of.  Default value here is enabled=madvise.
>>> When setting it to always the effect finally started appearing,
>>> so it is actually working.
>>>
>>> But can't qemu set MADV_HUGEPAGE flag too, so it works automatically?
>>
>> It can and should.
> 
> Something like the attached patch?
> 
> Thanks,
> 
> /mjt

Attachment: 0001-mark-large-vmalloc-areas-as-MADV_HUGEPAGE-and-allow-.patch
Description: Text Data


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