Messages in this thread | | | Date | Wed, 17 Sep 2008 14:28:05 -0400 | From | Rik van Riel <> | Subject | Re: Populating multiple ptes at fault time |
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On Wed, 17 Sep 2008 10:47:30 -0700 Jeremy Fitzhardinge <jeremy@goop.org> wrote:
> Minor faults are easier; if the page already exists in memory, we should > just create mappings to it. If neighbouring pages are also already > present, then we can can cheaply create mappings for them too.
This is especially true for mmaped files, where we do not have to allocate anything to create the mapping.
Populating multiple PTEs at a time is questionable for anonymous memory, where we'd have to allocate extra pages.
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