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    SubjectRe: RFC: Hugepage COW
    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?


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