On Mon, 2009-02-23 at 15:35 +0000, Kai-Martin Knaak wrote: > > Results of the benchmark() command on my not quite up-to-date desktop > > hardware (3600 BogoMIPS, glxgears ~1500): > > > > full polygons: 2.7 redraws/sec > > thin draw polygons: 2.6 redraws/sec > > polygon layers off: 126 redraws/sec > > Redraw rate on my two years old desktop at my dayjob (4400 BogoMIPS, > glxgears ~890, nvidia quadro NV37GL):
> full polygons: 3.5 redraws/sec > thin draw polygons: 3.9 redraws/sec > polygon layers off: 34.5 redraws/sec Of course.. when comparing to my own numbers, I was forgetting the tessellation of polygons is pretty much CPU bound. I have a new laptop here, which is 4787 bongomips. (Whatever they are ;)) I guess I do need to implement the cache for tessellated polygons. Your rendering actually seems much faster than mine once CPU bound polygon generation are taken out of the equation. (/me now goes and sulks). I wish I had a better idea about what is limiting my performance on this Intel GM45 card. glClear throughput is one potential contender. Still... I don't know of any fancy GPU profiling tools available for the Intel GPUs. Nvidia have perfhud (on Windows), and Apple have some nice looking tools for OpenGL profiling. Unfortunately, I don't have access to either for testing, even though my old desktop PCB has an NVidia card.. it doesn't have the "right" OS. I guess I'll have to make a mental note to see how my old Desktop with its NVidia "something or-other" card works with PCB+GL. Its many years old, but I bet it outperforms this laptop with integrated graphics + chipset. -- Peter Clifton Electrical Engineering Division, Engineering Department, University of Cambridge, 9, JJ Thomson Avenue, Cambridge CB3 0FA Tel: +44 (0)7729 980173 - (No signal in the lab!) _______________________________________________ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user