On Mon, 2017-10-09 at 09:44 +0100, Chris Wilson wrote: > Both pread/pwrite GTT paths provide a fast fallback in case we cannot > map the whole object at a time. Currently, we use the fallback for very > large objects and for active objects that would require remapping, but > we can also add active fault mappable objects to the list that we want > to avoid evicting. The rationale is that such fault mappable objects are > in active use and to evict requires tearing down the CPU PTE and forcing > a page fault on the next access; more costly, and intefers with other > processes, than our per-page GTT fallback. > > Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> Reviewed-by: Joonas Lahtinen <joonas.lahtinen@xxxxxxxxxxxxxxx> Regards, Joonas -- Joonas Lahtinen Open Source Technology Center Intel Corporation _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
