Hi Robert, Quoting Robert Osfield <[EMAIL PROTECTED]>: > My quick look at benchmarking also hinted that hyper threading may be > hurting performance, or at least the current CPU affinity strategy > employed by osgViewer may be hurting performance on a hyper threading > CPU. Until I get an optimitized build running I can't go investigate
My take on hyper-threading was always to disable it, if enough (say >= 4) cores are available. It's not a separate core after all and there is a certain amount of work involved to make one core look like two. Additionally: what is the communities' experience with manually assigning processes to cores? Does it work? It sounds like a good idea but in my experience it's best to leave the scheduling up to the operating system to handle core affinity (except when you're running Windows which has a completely fscked-up round-robin scheduler). Cheers, /ulrich _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
