burn in, and stress tools
- https://www.tecmint.com/linux-cpu-load-stress-test-with-stress-ng-tool/
using stress
- https://winaero.com/blog/how-to-create-100-cpu-load-in-linux/
htop
yes > /dev/null &
4 - 6 - 12 times (depending on your cores, but virtual usually has 1 or 2)
- https://www.pcsuggest.com/benchmarking-linux-systems-with-simple-command-line-tools/
md5sum /dev/urandom
- http://www.roylongbottom.org.uk/linux%20burn-in%20apps.htm#anchor6
- https://linuxhint.com/useful_linux_stress_test_benchmark_cpu_perf/