From: Wei Wang2 <wei.wang2@amd.com>
To: George Dunlap <George.Dunlap@eu.citrix.com>
Cc: "xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>
Subject: Re: [PATCH 0/2] xenoprofile: Add IBS support
Date: Fri, 6 Aug 2010 16:34:09 +0200 [thread overview]
Message-ID: <201008061634.09776.wei.wang2@amd.com> (raw)
In-Reply-To: <AANLkTi=yE=m3pXVjkYJueMv8-OwEthUegHgq9PfvDc__@mail.gmail.com>
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@amd.com> 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@amd.com>
> > --
> > 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@lists.xensource.com
> > http://lists.xensource.com/xen-devel
next prev parent reply other threads:[~2010-08-06 14:34 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-07-30 13:28 [PATCH 0/2] xenoprofile: Add IBS support Wei Wang2
2010-08-06 14:13 ` George Dunlap
2010-08-06 14:34 ` Wei Wang2 [this message]
2010-08-06 14:59 ` Keir Fraser
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