POV-Ray : Newsgroups : povray.windows : Not using all CPU : Re: Not using all CPU Server Time
13 Jun 2024 19:20:46 EDT (-0400)
  Re: Not using all CPU  
From: Thomas de Groot
Date: 14 Jan 2021 02:48:41
Message: <5ffff759$1@news.povray.org>
Op 13/01/2021 om 20:46 schreef Mike Horvath:
> Yeah, my old PC was always pegged at 100% CPU on all 4 cores.
> This is frustrating because the whole reason I got such a powerful CPU 
> was so that I could do more raytracing. Otherwise, I don't need such a 
> good CPU.
> :(

For a render, I typically set +WT at 'maximum logical processors minus 
2'. As I have here 6 cores and thus 12 logical processors, I set +WT10. 
Thus I am always able to do something else besides the render.

Possibly, your WT is set low by default. Changing WT and watching the 
Task Manager you will see CPU utilisation change. I noticed that when 
CPU utilisation gets close to 90+% no render time is really gained, so 
it seems always better to set a lower WT to keep it under the 100%


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