Processor isn't using fully with HandBrake

[Wolfpup]

Sorry to revive an old thread, but I have new information! Strangely, if I encode to H.264 (using x264) in Handbrake, it uses all 8 of my cores quite effectively with nearly 800% CPU usage, limited only by other apps using the rest of the cycles. Wow, it rips through that encoding job. If I encode to MPEG-2 or MPEG-4 (using FFmpeg), it uses only around 225% CPU, obviously not splitting up the task very well. What's going on?

Huh, interesting. Maybe that FFmpeg is only set up to be able to use 2 CPUs?

 

[sr55]

Different encoders / decoders scale differently depending on how well they are optimised. This is normal.

There are many steps in the pipeline, each stage or several could be a bottleneck.

Either way, the app will always use as much as it can until it bottlenecks or the CPU is maxed out.