On Tue, Nov 03, 2015 at 03:06:36AM +0000, Gong, Zhipeng wrote: > It seems that there are some gaps in the patch and first patch. > Like there is no this line in the first patch. > if (req->ring->seqno_barrier) Ah, that was in the context I hope... > I have tried to apply this patch. And here is the cpu utilization and perf data on BDW Do you also have a relative perf statistics like op/s we can compare to make sure we aren't just stalling the whole system? > CPU util | w/o patch | w/ patch > ---------------------------------------------------------- > BDW async 1 | 116% | 95% > BDW async 5 | 111% | 91% How much cpu time is left in the i915_wait_request branch? i.e. how close to the limit are we with chasing this path? -Chris -- Chris Wilson, Intel Open Source Technology Centre _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx