Chris Wilson <[email protected]> writes: > Enabling context support increases SwapBuffers latency by about 20% > (measured on an i7-3720qm). We can offset that loss slightly by enabling > faster caching for the contexts. As they are not backed by any > particular cache (such as the sampler or render caches) our only option > is to select the generic mid-level cache. This reduces the latency of > the swap by about 5%.
The UFO driver is doing LLC/MLC on all buffers by using the cacheability control field. I think we should do the same by just setting all our pte fields for LLC+MLC instead of special casing contexts.
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