On Fri, 2011-04-29 at 13:49 +0800, ext Zhao, Juan J wrote: > On Fri, 2011-04-29 at 08:33 +0300, Tapani Pälli wrote: > > Measuring fps : > > https://gitorious.org/swaplogger/ > > > > > Good point. I am also working on this now. But I have some concerns > about this measuring method. > It uses XDamageNotify to calculate the frame rate. The base idea is the > same as what we used named "VideoPerf". > As I know composite window manager also use XDamageNotify to process the > composite and redrawing the window. > I'm afraid this may load performance drop. > I run that perf tool to test glxgears and QGears on my desktop(the > graphcs is NV's). glxgears dropped about 40%. But QGears has the same > framerate. > Do you investigate this point before? Any comments?
If you want to measure desktop GL composited video then I'm afraid you need to extend swaplogger, it only supports EGL and legacy X at the moment so I'm afraid as it is it might not be suitable for this but could be extended. I'm not sure now what is your use case, is it overlay video, textured video and is it composited or not direct rendered? // Tapani _______________________________________________ MeeGo-dev mailing list [email protected] http://lists.meego.com/listinfo/meego-dev http://wiki.meego.com/Mailing_list_guidelines
