Hi, On Monday 16 April 2012, Wolfgang Rostek wrote: > I'm fighting with some stutter issues using Flightgear (2.6 and OSG 3.0.1). > In my scenario I can reproduce it and it seems to be related to tile > loading. The frame rate is above 50 Hz but in one frame cycle it takes 678 > msec. > > I extended OSG notify with a [usec][thread id] prefix and run it with > DEBUG_FP level. Below the long lasting frame cycle. It starts at line 21. > > Up to line 246 it consumes 139 msec. The Create new ... TextureObjects > lines up to 257 consume another 543 msec. > > Is this log showing something I can improve? > > Why is the time consuming part on the draw() thread (1818)? I would assume > this could be done somehow in the background (I'm using > DrawThreadPerContext).
You are using the nvidia binary driver? This one is known to be extremely bad with computing mipmapping together with texture compression. Can you give the following command line fgfs --prop:/sim/rendering/texture-compression=off a try? This will switch off the use of forced texture compression which might help in this situation. Please tell me if ths works for you. Thanks Mathias -- Dr. Mathias Fröhlich, science + computing ag, Software Solutions Hagellocher Weg 71-75, D-72070 Tuebingen, Germany Phone: +49 7071 9457-268, Fax: +49 7071 9457-511 -- Vorstandsvorsitzender/Chairman of the board of management: Gerd-Lothar Leonhart Vorstand/Board of Management: Dr. Bernd Finkbeiner, Michael Heinrichs, Dr. Arno Steitz, Dr. Ingrid Zech Vorsitzender des Aufsichtsrats/ Chairman of the Supervisory Board: Philippe Miltin Sitz/Registered Office: Tuebingen Registergericht/Registration Court: Stuttgart Registernummer/Commercial Register No.: HRB 382196 _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
