On Tue, Aug 09, 2016 at 12:05:30PM +0100, Tvrtko Ursulin wrote: > > On 07/08/16 15:45, Chris Wilson wrote: > >We allocate a few objects into the GGTT that we never need to access via > >the mappable aperture (such as contexts, status pages). We can request > >that these are bound high in the VM to increase the amount of mappable > >aperture available. However, anything that may be frequently pinned > >(such as logical contexts) we want to use the fast search & insert. > > Is the last bit still true after you merged: > > commit 202b52b7fbf70858609ec20829c7d69a13ffa351 > Author: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> > Date: Wed Aug 3 16:04:09 2016 +0100 > > drm: Track drm_mm nodes with an interval tree > > Or we could PIN_HIGH the LRCs as well now? It is still true. I've another set of patches for drm_mm to speed up the actual PIN_HIGH searching, but that is still slower than using the eviction stack. It's a tradeoff of causing fragmentation (and maybe hitting a slow cleanup path) or faster allocation when creating contexts. I think the tradeoff is still towards causing fragmentation. -Chris -- Chris Wilson, Intel Open Source Technology Centre _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
