https://bugs.freedesktop.org/show_bug.cgi?id=38800 --- Comment #15 from Simon Farnsworth <simon.farnsworth@xxxxxxxxxxxx> 2011-07-05 09:56:41 PDT --- Redoing my benchmarking with the resolution knowledge in mind: Whatever resolution I choose, perf top shows me that 50% of my used CPU time is spent in r600_fence_finish from the r600g DRI driver. At 1920x1200, I see my test program using approximately 27% CPU, and I have about 80% idle time across both cores of the Fusion APU. These numbers are unchanged at 1024x768. I also see about 5% of my used CPU time in radeon_fp_native_mode from the kernel driver; again, this is resolution independent. I'm forced to conclude that it's not CPU-side slowdown - is there any way (like Intel's intel_gpu_top and intel_gpu_dump) to see roughly what the GPU is up to? Or is my best bet at this point to instrument something so that I can see the GPU command stream (where?), and use http://developer.amd.com/gpu_assets/r600isa.pdf to decode what's going on? -- Configure bugmail: https://bugs.freedesktop.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug. _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
