SMP for OSX guests

Discussions about using Mac OS X guests (on Apple hardware) in VirtualBox.
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okiuss
Posts: 61
Joined: 7. Nov 2016, 14:06
Primary OS: Mac OS X other
VBox Version: PUEL
Guest OSses: OSX,LINUX,WINXXX
Location: Austria

SMP for OSX guests

Post by okiuss »

Hi,

From the VirtualBox Usermanual:
.... Mac OS X guests only work with one CPU assigned to the VM. Support for SMP will be provided in a future release.

Today i have tested some transcoding jobs with handbrake. Setting the number of vCpus for
a Sierra guest from 1 to 4 speeds up the transcodeing 3 times faster :-)

Q1: Is this information from the manual outdated ?
Q2: Which versions of OS X/macOS are affected by working/non working SMP ?

Regards, OK
socratis
Site Moderator
Posts: 27330
Joined: 22. Oct 2010, 11:03
Primary OS: Mac OS X other
VBox Version: PUEL
Guest OSses: Win(*>98), Linux*, OSX>10.5
Location: Greece

Re: SMP for OSX guests

Post by socratis »

A1: Yes
A2: In my case only the 10.10 OSX guest is unstable. It might work, but most of the times it hangs. The rest, from 10.5 to 10.12, are all fine.
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