[Qgis-user] Qgis low CPU and Memory load

[Stewart Holt]

Your I-7 likely has 4 or more logical processors. The only way to go over
100/N where N is the number of processors is to have 2 or more things
(continuously) running simultaneously (like loading a complex web page in a
browser). Scripts are going to run as a single stream which will bounce
around between processors, giving an average user of 100/N% If you have 4
processors, 25% would be from the script and another 5% handling disk I/O,
network, and other Windows tasks. That would result in the 30% you see.
Parallelizing script execution is complex and I doubt that it is currently
done in QGIS.

On Thu, Apr 15, 2021 at 1:03 PM Wolfgang Meinolf <
wmeinolf at bbv-deutschland.de> wrote:

> Dear Community,
>
> I use Qgis quite a while under win10 and ubuntu (via Oracle VM Box). My
> FTTH scripts include GRASS i.e. v.net.steiner algorithm, which are quite
> CPU and memory intensive. However I never observed more than 30% CPU and
> never more than appx 4GB mem usage. My Hardware is Intel I7, 32GB Ram and
> 1000TB SSD. At same time I don’t observe any other activities i.e. on
> network. I installed OsGEO4W the 64bit Version. I’. currently on 3.18.1
>
>
>
> I have however the impression to use a 32bit version.
>
>
>
> I would appreciate any hint, how I can increase the CPU and MEM Load, to
> accelerate my scripts, which run usually quite a while. What do I wrong?
>
>
>
> Thanks in advance and best regards from Bavaria.
>
> Wolfgang
>
> --------------------------------------------
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