id,summary,reporter,owner,description,type,status,component,version,resolution,keywords,cc,guest,host
8100,Slow guests on Mac host,sgbotsford,,"Host machine:  Mainboard Gigabyte GA-EP35-DS3P  8 GB ram  SATA 3 hard drives. Core 2 duo E6750 processor.

Host OS: Hackintosh Snow Leopard, vanilla install.

VB is version 3.2.12, but I've also had this problem under 3.1.8 and 4.0.0

I have now attempted two different versions of linux and Windows XP sp3.  I will use the latter for this example, but behaviour of the linux guests is,if anything, worse.
VM Details:  Accepted default of 10 GB disk (static) Did initial install, added guest additions, reset screen to 1024x768.  NO software has been added other than guest additions.

Startup, followed by an immediate shutdown of the Windows VM takes just under 4 minutes. 
Startup, followed by shutdown of puppy linux takes 9 minutes.

During this time, VB maxes out one CPU.  It is essentially 

After searching, I have tried other versions of VB.  Makes no difference.

This hardware ran fedora 10 before being converted to a Hackintosh.  Under F10 I ran winxp vms with very satisfactory results.

At this point I think it is either the Mac version of VB, or the interaction between Mac OS X and VB

I've attached

WinXP...log  Log of a start/stop session on this VM
vm_stat.txt  output of vm_stat at 10 second intervals.
iostat.txt   output of iostat at 10 second intervals.
kextstat.txt output of kextstat
sysctl.txt   output of sysctl -a
 ",defect,closed,other,VirtualBox 3.2.12,obsolete,,,Windows,Mac OS X