Hugepages for tmpfs

Hugepages for tmpfs

[Radosław Smogura]

Hi all,

Long time ago I was working on enabling huge pages for tmpfs and in terms for any filesystem. Recently I have found my work and I was thinking about restarting it with new kernel.

I wonder if there is some ongoing or finished work for huge pages in tmpfs?

Best regards,
Radek Smogura
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Re: Hugepages for tmpfs

[Kirill A. Shutemov]

On Mon, Jun 06, 2016 at 06:30:06AM +0000, RadosA?aw Smogura wrote:
> Hi all,
> 
> Long time ago I was working on enabling huge pages for tmpfs and in terms for any filesystem. Recently I have found my work and I was thinking about restarting it with new kernel.
> 
> I wonder if there is some ongoing or finished work for huge pages in tmpfs?

https://lwn.net/Articles/684300/
https://lwn.net/Articles/686690/

-- 
 Kirill A. Shutemov

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Re: Hugepages for tmpfs

[Radosław Smogura]

Hi Kirill,

Maybe we can work on this together, 4 years ago I submitted set of patches, but those went almost unnoticed.

I’ve got routines for defragmenting, setting pmd, and install huge page in process VM. I’ve come with one approach, that given page should be available for processes as huge page and normal page, to avoid splitting. As far as I remember the challenging part for me was splitting page and synchronising those to disk - and I’m not quite sure if I had made it well.

http://marc.info/?l=linux-mm&m=132940277830017&w=2
http://marc.info/?l=linux-mm&m=132940278330026&w=2 and next

Best reagards,
Radek Smogura

> On 06 Jun 2016, at 11:55, Kirill A. Shutemov <kirill@shutemov.name> wrote:
> 
> On Mon, Jun 06, 2016 at 06:30:06AM +0000, Radosław Smogura wrote:
>> Hi all,
>> 
>> Long time ago I was working on enabling huge pages for tmpfs and in terms for any filesystem. Recently I have found my work and I was thinking about restarting it with new kernel.
>> 
>> I wonder if there is some ongoing or finished work for huge pages in tmpfs?
> 
> https://lwn.net/Articles/684300/
> https://lwn.net/Articles/686690/
> 
> -- 
> Kirill A. Shutemov