On Tue, Dec 09, 2014 at 08:48:38PM -0800, Chad Versace wrote: > > > On 10/23/2014 06:23 AM, Chris Wilson wrote: > > On Thu, Oct 23, 2014 at 12:56:46PM +0100, Chris Wilson wrote: > >> On Thu, Oct 23, 2014 at 04:03:56PM +0530, akash.goel@xxxxxxxxx wrote: > >>> From: Akash Goel <akash.goel@xxxxxxxxx> > >>> > >> > >>> This is for improving the CPU write operation performance, as with such > >>> mapping, writes are almost 50% faster than with mmap_gtt. Also it avoids the > > > > Oops, bugs beware. I wasn't calling the ioctl correctly. > > Having re-run the test, I now get: > > > > gtt wc Operation > > -------- ------ --------- > > 424000.0 1.30 ShmPutImage 10x10 square > > 29500.0 1.44 ShmPutImage 100x100 square > > 1510.0 1.38 ShmPutImage 500x500 square > > > > Supporting your claims. Very nice. > > What are the units for these numbers? ops/s, relative factor on a baby byt. -Chris -- Chris Wilson, Intel Open Source Technology Centre _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
