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?
Attachment:
signature.asc
Description: OpenPGP digital signature
_______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
