Is there any way to speed up raster processing in QGIS? I have seen discussion about speeding up rendering and querying, but not processing.

I am using SAGA tools to calculate morphometrics and the calculations are taking extremely long. I am maxing out my CPU. Does QGIS parallel process using all available cores by default?

  • If you are maxing out your CPU I would say your CPU is the bottleneck and not SAGA processing.
    – JonasV
    Jul 7, 2020 at 16:07
  • Yes. I am using a Mac and 'Activity Monitor' confirms that I am using all four cores available on my computer for processing.
    – nateroe
    Jul 7, 2020 at 17:55
  • CPU running at 100% is a good sign only if the code makes CPU to do something that makes sense. Without a test case it is impossible to say why your process is so slow.
    – user30184
    Jul 11, 2020 at 11:10


Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge that you have read and understand our privacy policy and code of conduct.