Re: Populating multiple ptes at fault time

From: Christoph Lameter
Date: Thu Sep 18 2008 - 18:12:40 EST


Martin Bligh wrote:
>> My patches were only for anonymous pages not for file backed because readahead
>> is available for file backed mappings.
>
> Do we populate the PTEs though? I didn't think that was batched, but I
> might well be wrong.

We do not populate the PTEs and AFAICT PTE population was assumed not to be
performance critical since the backing media is comparatively slow.

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