7zip in vbox
VirtualBox 4.1.18_Ubuntur78361 testing on Ubuntu 12.10 via the Phoronix Test Suite.
HTML result view exported from: https://openbenchmarking.org/result/1212222-SU-7ZIPINVBO85.
7-Zip Compression
Compress Speed Test
Phoronix Test Suite v10.8.4