Slowness when using VPC 2007 in Windows XP x64

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thefirstM - 07 May 2008 00:16 GMT

I am using Virtual PC 2007 in Windows XP x64 SP2 on an adequately fast host
system (2gHz Core 2 Duo w/Intel Virtualization Technology). When I install
Windows XP x86 in a virtual machine, I get very slow, laggy performance (even
for a VM.) It is worse than another PC I use which has 32-bit XP as the host
operating system. Does anyone else experience this?

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Mark Rae [MVP] - 07 May 2008 00:26 GMT

> I am using Virtual PC 2007 in Windows XP x64 SP2 on an adequately fast
> host

How much RAM...?

> When I install Windows XP x86 in a virtual machine, I get very slow, laggy
> performance

How much RAM have you allocated to the VM?

Have you installed the Additions...?

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Mark Rae
ASP.NET MVP
http://www.markrae.net

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Colin Barnhorst - 07 May 2008 01:17 GMT

Like Mark says, install the virtual machine additions from the Action Menu
on the vm console.

>I am using Virtual PC 2007 in Windows XP x64 SP2 on an adequately fast host
> system (2gHz Core 2 Duo w/Intel Virtualization Technology). When I
[quoted text clipped - 4 lines]
> host
> operating system. Does anyone else experience this?

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thefirstM - 07 May 2008 01:48 GMT

I have installed the VM additions. The VM has 512mb RAM allocated to it, and
my system has 3gb RAM.

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Steve Jain - 07 May 2008 04:34 GMT

>I have installed the VM additions. The VM has 512mb RAM allocated to it, and
>my system has 3gb RAM.

Laptop, desktop? Host and guest on the same hard drive? Power
saving setting?

There are a lot of things that can slow a VM down. If you're using
any kind of power management that is throttling down your CPU, that's
the first place to start.

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Cheers,
Steve Jain, Virtual Machine MVP
http://vpc.essjae.com/
I do not work for Microsoft.

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thefirstM - 07 May 2008 10:22 GMT

The host computer is a laptop. SpeedStep is enabled, but I do not believe
this is the problem because I have used another laptop of similar
specification (except running Windows XP x86), and it worked fine. Besides,
the only way to disable SpeedStep would leave my computer locked in lowest
performance mode.

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Steve Jain - 07 May 2008 17:47 GMT

>The host computer is a laptop. SpeedStep is enabled, but I do not believe
>this is the problem because I have used another laptop of similar
>specification (except running Windows XP x86), and it worked fine. Besides,
>the only way to disable SpeedStep would leave my computer locked in lowest
>performance mode.

Speedstep is known to cause a lot of problems with VPC's performance
over the years.
http://blogs.msdn.com/virtual_pc_guy/search.aspx?q=laptop&p=1

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Cheers,
Steve Jain, Virtual Machine MVP
http://vpc.essjae.com/
I do not work for Microsoft.

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