Created attachment 109696 [details] Resulting graph with a simple endless loop program I have 4 CPUs and in KSysGuard > System Load > CPU History the CPUs are shown separately. In some situations this causes "wild" graphs: E.g. run this python script: while True: print("Infinite Loop") and the graph looks like in the attachment. I wonder if it makes sense to have an option to show a graph with the combined CPU load. This would mean for 4 CPUs that each CPU would contribute with max. 25 % to the 100 % Y axis.
Have you tried stacking the beams on top of each other? It is similar to what you ask for.
I didn't know the option before. It is similar, yes, but is missing one thing I find useful: with my infinite loop example it still shows a 100% load instead a much lower percentage since not all CPUs are loaded 100 %.
Usage will go above 100% with more CPU's. Most applications will not normalize the usage to the number of cores. I think this is OK.
Thanks for pointing this out. I have 4 cores, therefore I went to the graph properties > Scales and set the graph range to 0 - 400 %. I used then this command $ dd if=/dev/zero of=/dev/null (see https://stackoverflow.com/questions/2925606/how-to-create-a-cpu-spike-with-a-bash-command) to generate 100 % load for one, two, three and four cores to verify. It works fine. Two usability things: 1. When I had the scale at 100 % (automatic) there it was not intuitive to see that the graph was "overflowing" when the processor was loaded more than 100 %. 2. A "Show combined CPU usage" option could either normalize to 100 % or automatically adjust the scale to the fitting percentage.
ksysguard is no longer maintained, in Plasma 6 there is the Plasma system monitor for this task. If your wish is still valid for the Plasma 6 replacement, please re-open and we can move this bug to the new product, thanks!