On 16.02.2015 20:27, Oded Gabbay wrote: > > > On 02/13/2015 12:01 PM, Michel Dänzer wrote: >> >> Hi Oded, >> >> >> the commit in the subject (5a8888a3119eb5b67f6e90605be9ed2e04807126) >> somehow causes degraded CPU (!) performance on my Kaveri box. E.g. a >> piglit run takes about 15% longer, and I suspect the same is true for >> e.g. compiling the kernel, though I haven't measured that explicitly. >> >> In addition to the measurably worse performance, the commit causes the >> CPU fan to stay significantly quieter during CPU-bound tasks, so maybe >> the commit somehow causes the CPU not to achieve turbo clocks or >> something like that. >> >> I'm attaching my .config. I don't see any difference in dmesg with or >> without the commit. >> >> > Hi Michel, > Thanks for catching that. > As we talked on IRC, there is indeed a bug in amdkfd. > I will publish the fix you tested to be included in 3.20 and mark it as > stable. > I will also add piglit to my regression tests. Sounds good, thanks! -- Earthling Michel Dänzer | http://www.amd.com Libre software enthusiast | Mesa and X developer _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
