Hello ffmpeg team and users, When using "-thread 16" for encoding videos (x264 and x265) on my dual Intel Xeon X5670 server running centOS 7, I notice a drop in performance when compared to single thread encoding! For example, I'm currently doing an a single-thread x265 encoding for a video and the speed as reported by ffmpeg is 2.7-2.8x. While if I run the same command with "-thread 16", I get a speed of 2.5-2.6x only. This looks illogical to me! Encoding should be faster with multithreading, unless the my CPUs are not compatible with "-threads" command or threading cannot be used for encoding.
Any suggestion please? Thank you. _______________________________________________ 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".
