Re: TTM's role in score-based eviction

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On Mon, 2013-12-09 at 23:45 +0100, Marek Olšák wrote:
> On Mon, Dec 9, 2013 at 9:30 PM, Lauri Kasanen <cand@xxxxxxx> wrote:
> >
> > Note that the hotness calculation will be in userspace, as only there
> > are the necessary counters available. So the finished hotness score
> > will be passed to the kernel, instead of sending all the necessary data
> > there. Ought to be less context switches that way.

Sounds like this could be abused by userspace though...


> This sounds good, but you will also need to update the DDX for
> everything up to and including Cayman. Hopefully the DDX doesn't emit
> IBs outside of glamor on Southern Islands and later chips.

It doesn't.


-- 
Earthling Michel Dänzer            |                  http://www.amd.com
Libre software enthusiast          |                Mesa and X developer

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