Linux: Determine which kernel processes are consuming your CPU

1. Install perf:

   sudo apt-get install linux-tools-common linux-tools-generic linux-tools-3.13.0-35-generic

   (The second package must match your kernel version. (Find with: uname -a) You can also just first install linux-tools-common and linux-tools-generic

   then type “perf" to let it tell you which package it needs.)

2. Record some 10 seconds of backtraces on all your CPUs:

   sudo perf record -g -a sleep 10
   

3. Analyse your recording:

   perf report
   
   

By: Tanius and Nighthawk