Chris Wilson <chris at chris-wilson.co.uk> writes: > On Mon, 18 Jun 2012 10:35:54 +0200, Daniel Vetter <daniel at ffwll.ch> wrote: >> On Fri, May 04, 2012 at 06:58:59PM -0700, Ben Widawsky wrote: >> > I'm seeing about a 5% FPS improvement across various benchmarks on my >> > IVB i3. Rumor has it that the higher end parts show even more benefit. >> > >> > This derives from a patch originally given to me by Bernard. The docs >> > are confusing about the definition names (ie. medium really seems like >> > max), but it would seem it gives more cache to the GT at the expense of >> > uncore. This configuration makes the split most in favor of the GT. I've >> > not tried the other IDICOS values. >> > >> > Cc: "Kilarski, Bernard R" <bernard.r.kilarski at intel.com> >> > Signed-off-by: Ben Widawsky <ben at bwidawsk.net> >> Queued for -next, with Eric's ack added. Although I've had fix the patch, >> it didn't compile :( > > So this introduces a 10% (205 to 185 fps on an i7-3720qm @10x7) performance > regression on good old CPU bound padman, but one large win with alpha > compositing the same texture over and over again (fishtank 7.8s to 6.8s). > > Oh well, there's plenty of overhead in mesa to recover -- reading the > profiles it is rate limited by the cpu overhead in i965_dri.so. Yeah, the plan for CPU overhead is threading the dispatch -- it's what every other driver does. -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: application/pgp-signature Size: 197 bytes Desc: not available URL: <http://lists.freedesktop.org/archives/intel-gfx/attachments/20120718/190d7f41/attachment.pgp>
