Only using 50% of Host CPU

06/02/2008, 01h07

I have a virtual server that keeps making out the cpu in the virtual, but the
host computer only hits 50%. I checked the settings and the server is setup
to use up to 100%. This is a P4 with HT. Is there something that I am
missing?

THANKS!!!

06/02/2008, 02h44

On Tue, 5 Feb 2008 17:07:00 -0800, jd <jd@discussions.microsoft.com>
wrote:

>I have a virtual server that keeps making out the cpu in the virtual, but the
>host computer only hits 50%. I checked the settings and the server is setup
>to use up to 100%. This is a P4 with HT. Is there something that I am
>missing?
>
>THANKS!!!

No, you only get 100% of 1 CPU, since you've got an HT CPU, you get
50% of the system, which is 100% of one HT CPU.

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

06/02/2008, 02h48

Is there a way to us all of CPU's I have in the host system?

Thanks!!!!

"Steve Jain" wrote:

> On Tue, 5 Feb 2008 17:07:00 -0800, jd <jd@discussions.microsoft.com>
> wrote:
>
> >I have a virtual server that keeps making out the cpu in the virtual, but the
> >host computer only hits 50%. I checked the settings and the server is setup
> >to use up to 100%. This is a P4 with HT. Is there something that I am
> >missing?
> >
> >THANKS!!!
>
> No, you only get 100% of 1 CPU, since you've got an HT CPU, you get
> 50% of the system, which is 100% of one HT CPU.
>
> --
> Cheers,
> Steve Jain, Virtual Machine MVP
> http://vpc.essjae.com/
> I do not work for Microsoft.
>

06/02/2008, 06h23

On Tue, 5 Feb 2008 18:48:00 -0800, jd <jd@discussions.microsoft.com>
wrote:

>Is there a way to us all of CPU's I have in the host system?
>
>Thanks!!!!

A VM in Virtual Server can only use 1 CPU. If you want to use all
your system resources, the only way you could do it is to run 2 VMs.

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

08/02/2008, 02h40

jd wrote:

> Is there a way to us all of CPU's I have in the host system?
>
> Thanks!!!!

If you have hyperthreading on, you can disable HT to disable your
logical HT CPUs down to the physical ones. For a single socket machine
that would be the whole CPU.

06/02/2008, 01h07	#1
jd Messages: n/a Hébergeur:	Only using 50% of Host CPU I have a virtual server that keeps making out the cpu in the virtual, but the host computer only hits 50%. I checked the settings and the server is setup to use up to 100%. This is a P4 with HT. Is there something that I am missing? THANKS!!!

06/02/2008, 02h44	#2
Steve Jain Messages: n/a Hébergeur:	Re: Only using 50% of Host CPU On Tue, 5 Feb 2008 17:07:00 -0800, jd <jd@discussions.microsoft.com> wrote: >I have a virtual server that keeps making out the cpu in the virtual, but the >host computer only hits 50%. I checked the settings and the server is setup >to use up to 100%. This is a P4 with HT. Is there something that I am >missing? > >THANKS!!! No, you only get 100% of 1 CPU, since you've got an HT CPU, you get 50% of the system, which is 100% of one HT CPU. -- Cheers, Steve Jain, Virtual Machine MVP http://vpc.essjae.com/ I do not work for Microsoft.

06/02/2008, 02h48	#3
jd Messages: n/a Hébergeur:	Re: Only using 50% of Host CPU Is there a way to us all of CPU's I have in the host system? Thanks!!!! "Steve Jain" wrote: > On Tue, 5 Feb 2008 17:07:00 -0800, jd <jd@discussions.microsoft.com> > wrote: > > >I have a virtual server that keeps making out the cpu in the virtual, but the > >host computer only hits 50%. I checked the settings and the server is setup > >to use up to 100%. This is a P4 with HT. Is there something that I am > >missing? > > > >THANKS!!! > > No, you only get 100% of 1 CPU, since you've got an HT CPU, you get > 50% of the system, which is 100% of one HT CPU. > > -- > Cheers, > Steve Jain, Virtual Machine MVP > http://vpc.essjae.com/ > I do not work for Microsoft. >

06/02/2008, 06h23	#4
Steve Jain Messages: n/a Hébergeur:	Re: Only using 50% of Host CPU On Tue, 5 Feb 2008 18:48:00 -0800, jd <jd@discussions.microsoft.com> wrote: >Is there a way to us all of CPU's I have in the host system? > >Thanks!!!! A VM in Virtual Server can only use 1 CPU. If you want to use all your system resources, the only way you could do it is to run 2 VMs. -- Cheers, Steve Jain, Virtual Machine MVP http://vpc.essjae.com/ I do not work for Microsoft.

08/02/2008, 02h40	#5
Richard Cardona Messages: n/a Hébergeur:	Re: Only using 50% of Host CPU jd wrote: > Is there a way to us all of CPU's I have in the host system? > > Thanks!!!! If you have hyperthreading on, you can disable HT to disable your logical HT CPUs down to the physical ones. For a single socket machine that would be the whole CPU.

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