Contains command line tool perf.
Doesn't need to check actual performance but running these tests might trigger any potential future regression in the kernel, virtualizer, etc.
perf test perf bench all
If exit code is non-zero and system didn't crash that would be considered a good sign. Actual output would not be parsed.
Also - in graphical mode only:
Same. Only exit code testing. No parsing of results.
stress --cpu 8 --io 4 --vm 2 --vm-bytes 128M --timeout 10s