On Wed, 4 Aug 2010 22:16:58 +0200, Daniel Vetter wrote:
> This way active buffers are scanned in retiring order, whereas your code
> scans them in issuing order. IMHO the former is the fairer approach for
> eviction when both rings are busy. I also think the code would look
> slightly less scary ;
On Wed, Aug 04, 2010 at 12:20:36PM +0100, Chris Wilson wrote:
> Based in a large part upon Daniel Vetter's implementation and adapted
> for handling multiple rings in a single pass.
I've thought some more about this and I'm not sold on the idea that your
One Scan to Rule Them All is any fairer tha
Based in a large part upon Daniel Vetter's implementation and adapted
for handling multiple rings in a single pass.
This should lead to better gtt usage and fixes the page-fault-of-doom
triggered. The fairness is provided by scanning through the GTT space
amalgamating space in rendering order. As
