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    SubjectRe: RFC: Hugepage COW
    On Thu, Jul 14, 2005 at 10:24:33AM -0700, Christoph Lameter wrote:
    > On Thu, 7 Jul 2005, David Gibson wrote:
    > > Now that the hugepage code has been consolidated across the
    > > architectures, it becomes much easier to implement copy-on-write.
    > > Hugepage COW is of limited utility of itself, however, it is
    > > essentially a prerequisite for any of a number of methods of allowing
    > > userland programs to automatically use hugepages without code changes
    > > e.g. hugepage malloc() libraries, implicit hugepage mmap(), hugepage
    > > ELF segments. For certain applications (particularly enormous HPC
    > > FORTRAN programs), these can result in a large performance
    > > improvement.
    > >
    > > Thoughts? Flames?
    > Great stuff. I am glad that you are cleaning up the hugepages and are
    > making progress improving them. What are your thoughts on implementing
    > fault handling for huge pages?

    Well, the COW patch implements a fault handler, obviously. What
    specifically where you thinking about?

    David Gibson | I'll have my music baroque, and my code
    david AT | minimalist, thank you. NOT _the_ _other_
    | _way_ _around_!
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