On Fri, 4 May 2012 13:40:27 -0700 Jesse Barnes <jbarnes at virtuousgeek.org> wrote: > On Fri, 4 May 2012 18:58:59 -0700 > Ben Widawsky <ben at bwidawsk.net> 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. > > Bringing the IRC discussion here. I think this is really at the > expense (though not really) of the CPU, since it allows the GPU to use > more of the shared CPU/GPU cache in the uncore. > > You can fix up the #define names if you want; the MEDIUM etc may be > from an old, incorrect doc. They were added awhile back. > > Jesse The names match current docs. Presumably they mean something to someone. I don't feel the need to modify them as such. -- Ben Widawsky, Intel Open Source Technology Center
