[vbox-dev] 2015 VM Benchmarks: Parallels 11 vs. Fusion 8 vs. VirtualBox 5

[Alexey Eromenko]

 http://www.tekrevue.com/2015-vm-benchmarks-parallels-11-vs-fusion-8/12/

benchmarks are ...not in our favor.

What could be the reason ?
CPU virtualization is fast in VBox. (at least on Linux+Windows)

What could be the problem of 5x-fold slowdown ?
Special instructions like timers ? Or Disk I/O ? Disk caching ?

-- 
-Alexey Eromenko "Technologov"