Re: hugetlb demand paging patch part [2/3]

Ray Bryant
2004-04-16T19:05:13Z

David,

Is there a big user demand for copy-on-write support for hugetlb pages?
I can understand the rationale for making hugetlb pages behave more like user
pages, and fixing the problem that hugetlb pages are shared across fork via
MAP_SHARE semantics regardless of whether the user requests MAP_PRIVATE or
not, but it just doesn't strike me as something that anyone who uses hugetlb
pages would actually want.

Of course, YRMV (your requirements may vary). :-)

'David Gibson' wrote:
>
> Well, I'm attempting to understand the hugepage code across all the
> archs, so that I can try to implement copy-on-write with a minimum of
> arch specific gunk. Simplifying and consolidating the existing code
> across archs would be a helpful first step, if possible.
>

--
Best Regards,
Ray
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Ray Bryant
512-453-9679 (work) 512-507-7807 (cell)
raybry@sgi.com raybry@austin.rr.com
The box said: "Requires Windows 98 or better",
so I installed Linux.
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