Hi, I am looking at a performance slow-down introduced after using some osg::Switch groups.
I did some performance benchmarking on std::vector<bool> and I found push_backs are 10x slower than std::vector<int>, and more importantly, the simple [] operator is about 20x slower(*). I am not sure it is the smoking gun yet, as I will need to back-track a lot of code, but it looks possible. This is because std::vector<bool> is specialized in the STL to be a memory efficient packed vector. I am not so sure that the memory (<bool> vs say <unsigned char> ) saved is really worth the performance hit in the case of osg::Switch (* Win32, _SECURE_SCL=0, Studio 2008) Andrew ------------------ Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=31323#31323 _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
