KVM Management : Disk and N/W stats

KVM Management : Disk and N/W stats

[jd]

Hi
  For the Xen platform we use data from xentop and present it to the user. For KVM, we are using information for top. Would like to know how to get Disk and N/W stats for a particular VM. 

  Also, how to possibly used the data measured from *within*  the vm ? The hypervisor owns the clock... so how accurate (or less accurate) utilization % would be ? 

/Jd
  


      

Re: KVM Management : Disk and N/W stats

[Anthony Liguori]

jd wrote:
> Hi
>   For the Xen platform we use data from xentop and present it to the user. For KVM, we are using information for top. Would like to know how to get Disk and N/W stats for a particular VM. 
>   

Same technique as xentop uses for Xen (look at the per-device statistics 
in sysfs).

>   Also, how to possibly used the data measured from *within*  the vm ? The hypervisor owns the clock... so how accurate (or less accurate) utilization % would be ? 
>   

What data would you be measuring in the guest?

Regards,

Anthony Liguori

> /Jd
>   
>
>
>       
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>   

Re: KVM Management : Disk and N/W stats

[jd]

Thanks...inline....


--- On Sat, 8/9/08, Anthony Liguori <anthony@codemonkey.ws> wrote:

> From: Anthony Liguori <anthony@codemonkey.ws>
> Subject: Re: KVM Management : Disk and N/W stats
> To: jdsw2002@yahoo.com
> Cc: "KVM List" <kvm@vger.kernel.org>
> Date: Saturday, August 9, 2008, 8:40 AM
> jd wrote:
> > Hi
> >   For the Xen platform we use data from xentop and
> present it to the user. For KVM, we are using information
> for top. Would like to know how to get Disk and N/W stats
> for a particular VM. 
> >   
> 
> Same technique as xentop uses for Xen (look at the
> per-device statistics 
> in sysfs).
> 


> >   Also, how to possibly used the data measured from
> *within*  the vm ? The hypervisor owns the clock... so how
> accurate (or less accurate) utilization % would be ? 
> >   
> 
> What data would you be measuring in the guest?
> 

I meant the data like cpu% and I/O rates..collected by existing management agents within VM which depend on some clock/time information. 

> Regards,
> 
> Anthony Liguori
> 
> > /Jd
> >   
> >
> >
> >       
> > --
> > To unsubscribe from this list: send the line
> "unsubscribe kvm" in
> > the body of a message to majordomo@vger.kernel.org
> > More majordomo info at 
> http://vger.kernel.org/majordomo-info.html
> >   
> 
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