I have a Dell Inspiron 7520 with an Intel Core i7-3612QM CPU that repeatedly cycles through 100% usage of each individual core while barely using any other core as shown in the screen shot below.
This happens regardless of what I'm running and might be what's causing my laptop to heat up, how would I go about making my laptop use all of the cores concurrently?
I'm using Ubuntu 14.04 LTS
sudo apt-get install stress
then the commandstress --cpu 8 --io 4 --vm 2 --vm-bytes 128M --timeout 20s
while running your system monitor.man stress
will give you lots of information about the program. It appears then that your OS and computer run correctly (stress causes all the processors to top out) but you ave a program which is not operating on all processors. Use of the programtop
will tell you what program is eating all of the CPU time on the single processor.