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    SubjectRe: remap_file_pages() use
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    On Mon, May 19, 2014 at 5:17 PM, Kirill A. Shutemov
    <kirill.shutemov@linux.intel.com> 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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