----- "Dan Dennedy" <dan at dennedy.org> a ?crit : > On Tue, Mar 3, 2009 at 6:59 AM, St?phane T?letch?a <steletch at free.fr> > wrote: > > Since i have home a dual core cpu and inigo runs with two threads, i > assumed there was an auto-detection, but since i have here 2*4 cpus, i > would like to benchmark the rendering (in 64 bits mode). So far i have > not found how to do it in settings, the mailing list and the web site, > is it possible atm? > > > > The launcher script from the Builder Wizard detects #cpus and sets an > environment variable MLT_AVFORMAT_THREADS=n. You can also set > threads=n as a property in a render profile. This thread count is not > the overall thread count. It is the number of FFmpeg worker threads > for video encoding (and decoding if using MLT_AVFORMAT_THREADS). > Therefore, you might want to set this to #core -1 or -2. Also, it > only > works for some codecs; it works exceptionally well for x264. >
Thanks, i've tried with xvid and the workload is not as important as i've seen with other programs, but i'll try the x264 codec...
