On 13/03/14 05:52 AM, Vincent Li wrote: > Then I started two 2D real X server which attached to Screen 0 and > Screen 1 respectively. > $ X :0 -layout Layout0 & > $ X :1 -layout Layout1 & > > And start a xvfb server as dummy x server > $ Xvfb :2 -screen 0 1024x768x24 & > > When run glxspheres using gpu 0 > $ DISPLAY=:2 vglrun -d :0 +v +tr /opt/VirtualGL/bin/glxspheres > This one runs well > > But when run glxspheres using gpu 1 > $ DISPLAY=:2 vglrun -d :1 +v +tr /opt/VirtualGL/bin/glxspheres ... > This time is very weird, the fps ~= 1 > the log shows glXSwapBuffers cost almost 1ms > [VGL] glXSwapBuffers (dpy=0x085d3ea0(:2) drawable=0x00e00002 > pbw->getglxdrawable()=0x00200002 ) 1366.429103 ms ... > But when running glxspheres64, both gpu 0 and gpu 1 work well. > What should I do to let 32bit on 2nd GPU works?
A few suggestions: 1. Do you get the same results when running glxspheres on the display directly? E.g. DISPLAY=:1 glxspheres vs DISPLAY=:1 glxspheres64 2. What about if you skip the xvfb server and display to the 3D X server? E.g. DISPLAY=:1 vglrun -d :1 +v +tr /opt/VirtualGL/bin/glxspheres 3. If 1) is fast but 2) is slow then running VGL with profiling might give a clue (e.g. readback stall?). DISPLAY=:1 vglrun -d :1 +v +pr /opt/VirtualGL/bin/glxspheres and DISPLAY=:2 vglrun -d :1 +v +pr /opt/VirtualGL/bin/glxspheres -Nathan ------------------------------------------------------------------------------ Learn Graph Databases - Download FREE O'Reilly Book "Graph Databases" is the definitive new guide to graph databases and their applications. Written by three acclaimed leaders in the field, this first edition is now available. Download your free book today! http://p.sf.net/sfu/13534_NeoTech _______________________________________________ VirtualGL-Users mailing list VirtualGL-Users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/virtualgl-users
