JeremyFr79 228 Posted December 14, 2014 Share Posted December 14, 2014 So I just had a quick question in regards to transcoding... I'm using Chromecast to watch movies streamed from MBS. I recently did a HUGE upgrade on my main server and so have been monitoring performance etc and noticed while watching a movie today that during playback my server cpu usage was around 30-40% during playback, however about halfway through the movie cpu dropped to 0% and ffmpeg no longer shows in task manager yet the movie continued to play fine. Am I to assume that MBS transcodes the file completely and caches the transcoded file and streams the cached file to the playback device? Sorry if this is a stupid question, if this in fact how transcoding works in MBS then all the better. Link to comment Share on other sites More sharing options...
techywarrior 688 Posted December 14, 2014 Share Posted December 14, 2014 Am I to assume that MBS transcodes the file completely and caches the transcoded file and streams the cached file to the playback device? Yes. 1 Link to comment Share on other sites More sharing options...
JeremyFr79 228 Posted December 14, 2014 Author Share Posted December 14, 2014 Yes. Awesome thanks, I figured that was the case was just surprised to see this. I guess then my next question is why it would only use 40% of available processor power, would be nice to see all 8 cores max out and just get the job done, not that I mind or care either way Link to comment Share on other sites More sharing options...
techywarrior 688 Posted December 14, 2014 Share Posted December 14, 2014 I believe that's a limitation of ffmpeg at the moment. I don't think it uses more then 4 threads. Of course if you have multiple simultaneous transcodes going on you may see more threads being used. (so you have plenty of headroom if you have multiple client devices ) Link to comment Share on other sites More sharing options...
JeremyFr79 228 Posted December 15, 2014 Author Share Posted December 15, 2014 I believe that's a limitation of ffmpeg at the moment. I don't think it uses more then 4 threads. Of course if you have multiple simultaneous transcodes going on you may see more threads being used. (so you have plenty of headroom if you have multiple client devices ) Yeah I have noticed that with multiple transcodes. I wen't from being able to transcode 1 at a time to 3 at a time. Link to comment Share on other sites More sharing options...
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