Hi. Cinelerra has more than 40 threads and uses extensive locking.
Try to increase playback buffer (16384) and uncheck "playback every fame". Einar On Tue, Sep 7, 2010 at 8:11 PM, Oriol Corbella <or...@ruccatala.cat> wrote: > Yes, I use CinelerraCV 2.1 XT. > > 2010/9/7 Haldun ALTAN <al...@wanadoo.fr> >> >> Which version ? there is a version xt for multiple cores >> Haldun >> >> Le 07/09/2010 18:42, Oriol Corbella a écrit : >>> >>> Hi everybody, >>> I have bought a bran new PC with Intel Core i7, 8GB RAM, and a NVidia >>> GTX260 with 1,5GB. I am editing in Cinelerra and all goes perfect except the >>> playback (at least in HD) because is totally choppy... When rendering all >>> goes OK. When playback, audio have little chops, and video have big chops >>> when playing transitions or video effects are added. When playback, all the >>> 8 CPU's are on 50% more or less. >>> I'm using Ubuntu 10.4 Lucid Lynx with linux-rt for Real Time kernel. In >>> Cinelerra I have 2048 on Playback buffer size of audio, I use ALSA audio >>> driver. In Video Playback I have "Play every frame" and X11-XV for video >>> driver. >>> >>> What do you recommend me to configure Cinelerra to get no choppy on >>> playback? And BTW, what configuration de you recommend me to optimize the >>> entire Ubuntu for the Core i7 power. >>> >>> Thanks everybody. >> >> _______________________________________________ >> Cinelerra mailing list >> Cinelerra@skolelinux.no >> https://init.linpro.no/mailman/skolelinux.no/listinfo/cinelerra > _______________________________________________ Cinelerra mailing list Cinelerra@skolelinux.no https://init.linpro.no/mailman/skolelinux.no/listinfo/cinelerra
