Screen shot of Processor panel in virtualbox 5.1.10 under Ubuntu 16.10 on MacPro 3,1 with dual quad-core Harpertown processors that lack hyperthreading support.
Screen shot of Processor panel in virtualbox 5.1.10 under Ubuntu 16.10 on MacPro 3,1 with dual quad-core Harpertown processors that lack hyperthreading support.