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Windows Virtual PCs Frequently Stop Responding For Short Periods

Source: microsoft.public.virtualpc
Sent: 11/24/2009
From: ssarthur2
Message:

I have recently upgraded my computer from Vista to Windows 7 and from Virtual
PC 2007 to Windows Virtual PC. I have migrated all my Virtual PCs by
"Upgrading Integration Components".

But I am experiencing problems which I did not had before. The VPCs
frequently (once or twice a minute) stop responding for 3 - 5 seconds. This
is exhibited by the screen stops refreshing and it does not respond to mouse
or keyboard. When it starts responding again, it typically catches up to
whatever was being done while it was down.

The hardware is more than capable (Intel quad core with 8GB RAM), so I don't
believe its a hardware issue. I have tried running both with Integration
Feature disabled and enabled, but it doesn't seem to make a difference.

Has anyone else experienced this? Is there a workaround? This is bad
enough to drive me back to VPC 2007 which I really don't want to do.

Post Reply | This is Spam! | Mark as Spam

Related Messages

Re: Windows Virtual PCs Frequently Stop Responding For Short Periods

Sent: 11/24/2009
From: Robert Comer <(email address - cut out)>
Message:

I've never seen this on a quad core machine, but it's a power
management issue. You can try setting the power management to highest
performance but it might not help.

The only thing I've seen that can effect it is to run a low priority
task in the background that forces the CPU to stay in the full
performance state. I use Seti@Homes Boinc project on my laptop when
I'm running a VM...

No other workaround at present. Apparently the one's who programmed
the BIOS on some machines turn off bits in a power management state
that WVPC rely on.

--
Bob Comer

On Tue, 24 Nov 2009 10:40:01 -0800, ssarthur2
<(email address - cut out)> wrote:

Show quoted text

>I have recently upgraded my computer from Vista to Windows 7 and from Virtual
>PC 2007 to Windows Virtual PC. I have migrated all my Virtual PCs by
>"Upgrading Integration Components".
>
>But I am experiencing problems which I did not had before. The VPCs
>frequently (once or twice a minute) stop responding for 3 - 5 seconds. This
>is exhibited by the screen stops refreshing and it does not respond to mouse
>or keyboard. When it starts responding again, it typically catches up to
>whatever was being done while it was down.
>
>The hardware is more than capable (Intel quad core with 8GB RAM), so I don't
>believe its a hardware issue. I have tried running both with Integration
>Feature disabled and enabled, but it doesn't seem to make a difference.
>
>Has anyone else experienced this? Is there a workaround? This is bad
>enough to drive me back to VPC 2007 which I really don't want to do.

Re: Windows Virtual PCs Frequently Stop Responding For Short Perio

Sent: 11/30/2009
From: ssarthur2
Message:

Thanks Bob. I appreciate the help. I am running the BOINC Manager in one
Virtual PC and it seems to do the trick. More than that, if I have multiple
Virtual PCs running, it actually seems to eliminate the problem in all open
PCs at the same time.

I do hope this is an issue that's being worked by the Virtual PC team.
While this does work, it's a pretty cheesy work-around.

"Robert Comer" wrote:

Show quoted text

> I've never seen this on a quad core machine, but it's a power
> management issue. You can try setting the power management to highest
> performance but it might not help.
>
> The only thing I've seen that can effect it is to run a low priority
> task in the background that forces the CPU to stay in the full
> performance state. I use Seti@Homes Boinc project on my laptop when
> I'm running a VM...
>
> No other workaround at present. Apparently the one's who programmed
> the BIOS on some machines turn off bits in a power management state
> that WVPC rely on.
>
> --
> Bob Comer
>
>
> On Tue, 24 Nov 2009 10:40:01 -0800, ssarthur2
> <(email address - cut out)> wrote:
>
> >I have recently upgraded my computer from Vista to Windows 7 and from Virtual
> >PC 2007 to Windows Virtual PC. I have migrated all my Virtual PCs by
> >"Upgrading Integration Components".
> >
> >But I am experiencing problems which I did not had before. The VPCs
> >frequently (once or twice a minute) stop responding for 3 - 5 seconds. This
> >is exhibited by the screen stops refreshing and it does not respond to mouse
> >or keyboard. When it starts responding again, it typically catches up to
> >whatever was being done while it was down.
> >
> >The hardware is more than capable (Intel quad core with 8GB RAM), so I don't
> >believe its a hardware issue. I have tried running both with Integration
> >Feature disabled and enabled, but it doesn't seem to make a difference.
> >
> >Has anyone else experienced this? Is there a workaround? This is bad
> >enough to drive me back to VPC 2007 which I really don't want to do.
> .
>

Re: Windows Virtual PCs Frequently Stop Responding For Short Perio

Sent: 11/30/2009
From: Robert Comer <(email address - cut out)>
Message:

>I do hope this is an issue that's being worked by the Virtual PC team.

Agreed.

--
Bob Comer

On Mon, 30 Nov 2009 13:36:08 -0800, ssarthur2
<(email address - cut out)> wrote:

Show quoted text

>While this does work, it's a pretty cheesy work-around.
>Thanks Bob. I appreciate the help. I am running the BOINC Manager in one
>Virtual PC and it seems to do the trick. More than that, if I have multiple
>Virtual PCs running, it actually seems to eliminate the problem in all open
>PCs at the same time.
>
>I do hope this is an issue that's being worked by the Virtual PC team.
>While this does work, it's a pretty cheesy work-around.
>
>
>
>"Robert Comer" wrote:
>
>> I've never seen this on a quad core machine, but it's a power
>> management issue. You can try setting the power management to highest
>> performance but it might not help.
>>
>> The only thing I've seen that can effect it is to run a low priority
>> task in the background that forces the CPU to stay in the full
>> performance state. I use Seti@Homes Boinc project on my laptop when
>> I'm running a VM...
>>
>> No other workaround at present. Apparently the one's who programmed
>> the BIOS on some machines turn off bits in a power management state
>> that WVPC rely on.
>>
>> --
>> Bob Comer
>>
>>
>> On Tue, 24 Nov 2009 10:40:01 -0800, ssarthur2
>> <(email address - cut out)> wrote:
>>
>> >I have recently upgraded my computer from Vista to Windows 7 and from Virtual
>> >PC 2007 to Windows Virtual PC. I have migrated all my Virtual PCs by
>> >"Upgrading Integration Components".
>> >
>> >But I am experiencing problems which I did not had before. The VPCs
>> >frequently (once or twice a minute) stop responding for 3 - 5 seconds. This
>> >is exhibited by the screen stops refreshing and it does not respond to mouse
>> >or keyboard. When it starts responding again, it typically catches up to
>> >whatever was being done while it was down.
>> >
>> >The hardware is more than capable (Intel quad core with 8GB RAM), so I don't
>> >believe its a hardware issue. I have tried running both with Integration
>> >Feature disabled and enabled, but it doesn't seem to make a difference.
>> >
>> >Has anyone else experienced this? Is there a workaround? This is bad
>> >enough to drive me back to VPC 2007 which I really don't want to do.
>> .
>>

Post Reply | This is Spam! | Mark as Spam

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