>>> how did you come to the conclusion that parallelization scales magically >>> and with no limits? if that would be realistic just throwing enough CPU >>> cores on whatever problem would be the soplution - but that is not how >>> computers are working >> >> On the other hand, both libx264 and libx265 do scale quite well by >> smartly dividing the work over all available threads. Yes, you can >> really have up to 800% cpu usage on a 4x2 cpu (which is quite >> impressive), with both of them > > but you can't expect that that scales up to every core count
But at least to more than eight cores (see the documentation), libx264 is (yet) a bit more scalable, but I guess libx265 will get better at it as well. On a 2x2x12 core machine I had to start two concurrent encodings to get all of the cpu's busy all of the time (libx265), but I also must say it didn't really add that much to the total encoding frame rate. _______________________________________________ ffmpeg-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
