On 11/28/2012 10:51 PM, Marek Ol??k wrote: > I think the problem with Radeon/TTM is much deeper. Let me demonstrate > it on the following example. > > Unigine Heaven needs about 385MB of space for static resources, that's > only 75% of my 512MB card. Yet, TTM is not capable of getting all of > that into VRAM. If I allow GTT placements, I get 20 fps, which is the > old Mesa behavior. If I force VRAM placements, I get 3 fps, because we > validate buffers 10 times per frame and there's probably a lot of > buffer evictions during each validation. >
Marek, Did you look at the total amount of referenced buffers in the ring including vertex buffers? Depending on how hard you throttle, I guess vertex / index buffer data referenced by the ring commands may well exceed the VRAM limitation. /Thomas
