On 14. Oct 2008, at 15:50, Dan Wilcox wrote: >> Your window swap buffer call takes most of the time, ~22ms (the white >> bar). This could either be delayed draw time since GL is pipelined, >> or >> a blocking swap buffer due to vsync on. > OK, we are double checking to see if vsync is on on some of the > screens.
It could also be an issue of the multi-view implementation of the nVidia driver. IIRC, buffer swaps on Geforce cards are in fact buffer copies, and in your case 16MB have to be copied. It could buffer swaps vs copies is configurable for full-screen context. Can you try with a single channel, full-screen window config? > >> You can test the first by setting the statistics hint to nicest in >> the >> config file. >> > I attached a screenshot of the same with stats at nicest. About the same, so it's really the swap buffers. >> What is your fps without a server, i.e., standalone? > Around 1400. So vsync is off. I don't know why the swap takes that long. It seems to me that this is a configuration/driver issue. I suggest playing with the Eq config - maybe 4 windows/pipe works better? Some xorg.conf setting? Maybe google helps? HTH, Stefan. _______________________________________________ eq-dev mailing list [email protected] https://in-zueri.ch/cgi-bin/mailman/listinfo/eq-dev http://www.equalizergraphics.com
