Re: fadvise DONTNEED implementation (or lack thereof)

[Rik van Riel]

On 11/17/2010 05:16 AM, Minchan Kim wrote:

> Absolutely. But how about rsync's two touch?
> It can evict working set.
>
> I need the time for investigation.
> Thanks for the comment.

Maybe we could exempt MADV_SEQUENTIAL and FADV_SEQUENTIAL
touches from promoting the page to the active list?

Then we just need to make sure rsync uses fadvise properly
to keep the working set protected from rsync.

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