VirtualBox

Ticket #4392 (new defect) — at Initial Version

Opened 9 years ago

Last modified 5 years ago

windows xp VM extremely slow when AMD-v is enable with 2 cpu

Reported by: rafael_chang Owned by:
Priority: major Component: VMM/HWACCM
Version: VirtualBox 3.0.6 Keywords:
Cc: Guest type: other
Host type: other

Description

ver 3.0.0 r49315

windows XP VM run extremely slow when 2 cpu is enable with AMD-V and IOAPIC on AMD x2 4800+ cpu. Previous Windows XP created on 2.2.X Virtualbox run way faster than that created on 3.0 Virtualbox.

Furthermore, when enabling multiple CPU, the physical CPU's are pegged.

In addition, install of windows XP would never finish when using 2 VCPU, while install using 1 CPU does finish, but the speed in comparison to Virtualbox 2.2.X performance/install/experience is way worse than 2.2.X release.

Question, how do I get to the log files, that would be useful for debug ?

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