Xen devel - Jun 2008 - Status of hardware performance counters in Xen

Hello everyone,

I''m wondering what the current status of hardware performance counter 
usability in Xen is. I see some old posts describing the diffculties of 
virtualizing hardware counters within dom0 and the domUs, but not much else.

Have they been implemented or are they in the process of being implemented? Or 
are there no future plans for implementation? Any help would be appreciated.

My platform would be Xen with Solaris x86 as the dom0 (xVM) and Solaris or 
Linux as the domUs.

Thanks,
Viren


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AFAIK nope. 
I am also looking for a nice way to get hold of performance counters in Xen, but
seems like its not making on to top of priority queue, perhaps one of us should
try it or we can collaborate. :)
So, still the way to go is oprofile (xenoprofile). 


 Best Regards,
Muhammad Atif



----- Original Message ----
From: Viren Kumar <virenk@shaw.ca>
To: xen-devel@lists.xensource.com
Sent: Wednesday, June 11, 2008 9:41:42 AM
Subject: [Xen-devel] Status of hardware performance counters in Xen

Hello everyone,

I''m wondering what the current status of hardware performance counter 
usability in Xen is. I see some old posts describing the diffculties of 
virtualizing hardware counters within dom0 and the domUs, but not much else.

Have they been implemented or are they in the process of being implemented? Or 
are there no future plans for implementation? Any help would be appreciated.

My platform would be Xen with Solaris x86 as the dom0 (xVM) and Solaris or 
Linux as the domUs.

Thanks,
Viren


_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xensource.com
http://lists.xensource.com/xen-devel



      

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Hi Muhammad,

Thanks for your reply. Yes, it definitely doesn''t seem like the
hardware
counters are going to be accessible any time soon :)

Cheers,
Viren


On June 12, 2008 06:34:52 you wrote:
> AFAIK nope.
> I am also looking for a nice way to get hold of performance counters in
> Xen, but seems like its not making on to top of priority queue, perhaps one
> of us should try it or we can collaborate. :) So, still the way to go is
> oprofile (xenoprofile).
>
>
>  Best Regards,
> Muhammad Atif
>
>
>
> ----- Original Message ----
> From: Viren Kumar <virenk@shaw.ca>
> To: xen-devel@lists.xensource.com
> Sent: Wednesday, June 11, 2008 9:41:42 AM
> Subject: [Xen-devel] Status of hardware performance counters in Xen
>
> Hello everyone,
>
> I''m wondering what the current status of hardware performance
counter
> usability in Xen is. I see some old posts describing the diffculties of
> virtualizing hardware counters within dom0 and the domUs, but not much
> else.
>
> Have they been implemented or are they in the process of being implemented?
> Or are there no future plans for implementation? Any help would be
> appreciated.
>
> My platform would be Xen with Solaris x86 as the dom0 (xVM) and Solaris or
> Linux as the domUs.
>
> Thanks,
> Viren
>
>
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xensource.com
> http://lists.xensource.com/xen-devel


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