memory trimming

I run Virtual Server 2005 1.1.629.0 EE R2 SP1 on Windows 2003 x64 R2 with
24GB ram (along with SQL 2005 x64 Std Edition).

I have been experiencing some issues with working set trims on this machine
and it seems whenever I start a VM a trim happens. Before the VM starts the
System Cache Resident Bytes hovers around 194MB. After the start it nevers
gets over 15MB. I constantly get trims occurring and of course lots of paging
and the performance of SQL and system is drastically affected. (shame I can't
post a screen shot of perfmon to give more detail)

Memory usage is
24GB installed
2GB VM
SQL 15.384 GB min and 16.384 GB max

Any ideas ?

Cheers
Rodney.

When you start a VM in Virtual Server 2005, and sometimes just at random on a host with at least one VM running, all processes on the host will have their working set trimmed.

I finally found a solution to this, it was causing me a major headache for some time.

The solution is to run Virtual Server and Virtual Machine Helper under a different user account rather than NETWORK SERVICE / LOCAL SYSTEM.

I tried it with a limited user account and set permissions in various folders without success (VS would start and stop immediately). Eventually I just tried with a local admin account and it worked.

Now when I start a virtual machine...NO WORKING SET TRIM!!!

Thanks Microsoft. Another great reason to continue to be married to your wonderful products.

> On Tuesday, September 01, 2009 1:05 AM Rodney Bradey wrote:

> I run Virtual Server 2005 1.1.629.0 EE R2 SP1 on Windows 2003 x64 R2 with
> 24GB ram (along with SQL 2005 x64 Std Edition).
>
> I have been experiencing some issues with working set trims on this machine
> and it seems whenever I start a VM a trim happens. Before the VM starts the
> System Cache Resident Bytes hovers around 194MB. After the start it nevers
> gets over 15MB. I constantly get trims occurring and of course lots of paging
> and the performance of SQL and system is drastically affected. (shame I cannot
> post a screen shot of perfmon to give more detail)
>
> Memory usage is
> 24GB installed
> 2GB VM
> SQL 15.384 GB min and 16.384 GB max
>
> Any ideas ?
>
> Cheers
> Rodney.


> Submitted via EggHeadCafe - Software Developer Portal of Choice
> Composite UI Pattern and RAD Development for Data Entry Applications, Part 1
> http://www.eggheadcafe.com/tutorials...ns-part-1.aspx

"Kurt Buck" <digitalaero@gmail.com> escreveu na mensagem
news:201091815133usenet@eggheadcafe.com...
> When you start a VM in Virtual Server 2005, and sometimes just at random
> on a host with at least one VM running, all processes on the host will
> have their working set trimmed.
>
> I finally found a solution to this, it was causing me a major headache for
> some time.
>
> The solution is to run Virtual Server and Virtual Machine Helper under a
> different user account rather than NETWORK SERVICE / LOCAL SYSTEM.
>
> I tried it with a limited user account and set permissions in various
> folders without success (VS would start and stop immediately). Eventually
> I just tried with a local admin account and it worked.
>
> Now when I start a virtual machine...NO WORKING SET TRIM!!!
>
> Thanks Microsoft. Another great reason to continue to be married to your
> wonderful products.
>
>> On Tuesday, September 01, 2009 1:05 AM Rodney Bradey wrote:
>
>> I run Virtual Server 2005 1.1.629.0 EE R2 SP1 on Windows 2003 x64 R2 with
>> 24GB ram (along with SQL 2005 x64 Std Edition).
>>
>> I have been experiencing some issues with working set trims on this
>> machine
>> and it seems whenever I start a VM a trim happens. Before the VM starts
>> the
>> System Cache Resident Bytes hovers around 194MB. After the start it
>> nevers
>> gets over 15MB. I constantly get trims occurring and of course lots of
>> paging
>> and the performance of SQL and system is drastically affected. (shame I
>> cannot
>> post a screen shot of perfmon to give more detail)
>>
>> Memory usage is
>> 24GB installed
>> 2GB VM
>> SQL 15.384 GB min and 16.384 GB max
>>
>> Any ideas ?
>>
>> Cheers
>> Rodney.
>
>
>> Submitted via EggHeadCafe - Software Developer Portal of Choice
>> Composite UI Pattern and RAD Development for Data Entry Applications,
>> Part 1
>> http://www.eggheadcafe.com/tutorials...ns-part-1.aspx