Re: [PATCH 4/4] mm: make every pte dirty on do_swap_page
From: Rik van Riel
Date: Thu Apr 09 2015 - 20:15:01 EST
On 04/09/2015 04:59 PM, Andrew Morton wrote:
> On Thu, 9 Apr 2015 08:50:25 +0900 Minchan Kim <minchan@xxxxxxxxxx> wrote:
> I'm getting the feeling that MADV_FREE is out of control.
> Below is the overall rollup of
> It's pretty large and has its sticky little paws in all sorts of places.
> The feature would need to be pretty darn useful to justify a mainline
> merge. Has any such usefulness been demonstrated?
The performance increase of MADV_FREE over MADV_DONTNEED is
quite significant. I suspect this is especially important for
mobile devices, which are more memory starved than desktop
systems and servers.
All rights reversed
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/