IDE almost flatlines 4 of 4 cpus - linux - any cure?

[desA]

When I run the IDE, it almost flatlines 4 of 4 cpus.

I would say it's because of the Linux system. I know a German Mint forum where you could ask whether others have had or still have similar problems.

Linux Mint-Forum

Thanks very much for your reply.  

Interestingly, I can now report back as follows - for the same version of Linux mint - on 2 different machines:
1. Xeon 4 cpu server - uses all 4 cpus to near flatline (> 85%).
2. Intel i7-7500 laptop - not a problem.

Weird... I'll investigate further on the Linux Mint Forum to see what else I can find. I tried to use Taskset to limit to specific cpu's - but no difference on the Xeon box.