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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