X264 max CPU usage?

[Selur]

of cpu during a Temporaldegrain2 + deinterlacing

both are rather slow and have parts in them that can't really be multihtreaded that good and might cause a bottleneck

there is a way to increase CPU usage or 17 is a fisical (software) limit of X264?

iirc.
there is no real thread limit in x264, but depending on:

• speed the hybrid encoder can acces
  
• resolution of the input
  
• number of threads (= encoding threads), lookahead-threads, rc-lookahead, sync-lookahead, sliced-threads
  

(for details you would have to look at https://code.videolan.org/videolan/x264/.../encoder.c)
there is a limit on how much threads acctually can be utilized, also keep in mind that high number of threads can decrease the accuracy of the results an inter-thread communication might slow down the process too. (so higher cpu utilization, does not have to mean higher speed)

Also faster presets will also limit the effective cpu usage since they are streamlined to be fast and efficient an not unecessarily use ressources that are not needed.

maybe not the best analogy, but maybe it helps:
If you have 6 fast cars and you want to transport a sixpack of beer through a tunnel, you could split the bottles to each of your cars and thus increasing the utilization of the ressources, but using one car (which can hold the 6 bottles) is more efficient. (also when you can't drive all cars in parallel through the tunnel bottlenecks might occur)


Cu Selur