Re: [Xen-devel] [PATCH 0/2] xenoprofile: Add IBS support

[Wei Wang2 <wei.wang2@xxxxxxx>]

Hi George,
IBS is Instruction-Based Sampling which is a new profiling technique 
introduced by AMD Family 10 processor that can provide rich, precise 
performance information. You can read more details about this from the white 
paper http://developer.amd.com/assets/amd_ibs_paper_en.pdf 

IBS feature is also well documented on Software Optimization Guide for AMD 
Family 10h Processors 
http://support.amd.com/us/Processor_TechDocs/40546-PUB-Optguide_3-11_5-21-09.pdf

Thanks,
Wei

On Friday 06 August 2010 16:13:15 George Dunlap wrote:
> May I ask a (potentially) dumb question: what is IBS?
>  -George
>
> On Fri, Jul 30, 2010 at 2:28 PM, Wei Wang2 <wei.wang2@xxxxxxx> wrote:
> > Hi,
> > This patch set adds IBS support for AMD family 10h processors. The major
> > implementation is derived from latest Linux. Two hypercalls are added,
> > which is necessary for IBS feature detection and user mode parameter
> > read. Thanks,
> > -Wei
> >
> > Signed-off-by: Wei Wang <wei.wang2@xxxxxxx>
> > --
> > AMD GmbH, Germany
> > Operating System Research Center
> >
> > Legal Information:
> > Advanced Micro Devices GmbH
> > Karl-Hammerschmidt-Str. 34
> > 85609 Dornach b. München
> >
> > Geschäftsführer: Andrew Bowd, Thomas M. McCoy, Giuliano Meroni
> > Sitz: Dornach, Gemeinde Aschheim, Landkreis München
> > Registergericht München, HRB Nr. 43632
> >
> >
> > _______________________________________________
> > Xen-devel mailing list
> > Xen-devel@xxxxxxxxxxxxxxxxxxx
> > http://lists.xensource.com/xen-devel




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