VirtualBox testing on Ubuntu 14.04 via the Phoronix Test Suite.
Compare your own system(s) to this result file with the
Phoronix Test Suite by running the command:
phoronix-test-suite benchmark 1504173-KH-CMPRESS7Z84
cmpress7zip,
"7-Zip Compression 9.20.1 - Compress Speed Test",
Higher Results Are Better
"cz",3066,3080,3084