Re: remap_file_pages() use

[Richard Weinberger]

On Mon, May 19, 2014 at 5:17 PM, Kirill A. Shutemov
<kirill.shutemov@xxxxxxxxxxxxxxx> wrote:
> Christoph Hellwig wrote:
>> On Mon, May 19, 2014 at 06:02:38PM +0300, Kirill A. Shutemov wrote:
>> > > Stop right there.  We found out about two real life users of
>> > > remap_file_pages() already, without even committing the patches to warn
>> > > about using it to any tree.
>> >
>> > Who is the second here?     Oracle?
>>
>> PyPy.
>>
>> Oracle would be the third, although use of the feature is optional and
>> fairly hard to opt in to, so I didn't count it.
>
> IIUC PyPy uses the syscall in some early prototype and looks like guys are
> okay to rework it to mmap() if default sysctl_max_map_count will be high
> enough.

A quick search on github exposed three more users:
https://github.com/LotharSchwab/R-Framework
https://github.com/const86/glgrab
https://github.com/minimoog/virtualringbuffer

-- 
Thanks,
//richard
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