[HELP] Low CPU usage and encoding speed

[acusta]

Hi there,

I've been having slow encoding speed since I swapped to a new CPU & Graphics card. I usually encode from 10-bit Ycbcr to ProRes422-LT using QTGCM+bob preset (faster) via VapourSynth. I remember to have at least 120fps with my older pc, now it only goes up to 86fps.

I still use all Hybrid default settings but instead of having a 100% CPU usage, Hybrid is only using 50.2% of my CPU. 



PC Specs:

CPU: Intel I5-14600K
GPU: RTX-5070
RAM: Corsair 32 GB DDR5 6000mhz 
HDD: M.2 Pcie-5.0 drives

Thanks!

[Selur]

Assuming your system is not thermal throttling and you are using the same script as on the old system:
Did your old CPU have E- and P- cores?
My guess is that it is related to these and Windows not using the cpu properly because all the processes Hybrid uses run in 'idle' mode to not hinder the usage of the system.

Does it make a difference if you create a 'misc.ini' file (next to Hybrid) with the following content:

[General]
niceness=0

try with niceness=0, niceness=48, niceness=96

Also:

• try if it works if you disable the e-cores in the bios.
  
• iirc. Windows might move application without an active Windows to the e-cores.
  

Cu Selur