Messages in this thread | | | Subject | Re: [PATCH] perf, x86: Enabled PEBS event to be exported in a raw format | From | Peter Zijlstra <> | Date | Tue, 03 Jul 2012 11:15:05 +0200 |
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On Tue, 2012-07-03 at 17:36 +1000, Michael Ellerman wrote: > On Fri, 2012-06-29 at 00:00 +0800, Feng Tang wrote: > > From: Andi Kleen <ak@linux.intel.com> > > > > Add support for reporting PEBS records in a raw format that can > > be then parsed by perf script. > > > > This is roughly similar to the existing AMD IBS support. > > > > This is mainly for advanced users and to experiment with > > new usages. Widespread PEBS usages are expected to get higher > > level interfaces over time, like the existing "precise ip" support. > > Hi folks, > > Pardon if I slightly hijack this thread, but we'd like to do something > similar to this on powerpc.
Do expand. What does exact information does it provide?
> I've been telling people not to use PERF_SAMPLE_RAW because it provides > no way for the consumer to know what data they're getting, and it's not > extensible in any way. > > So is shovelling things out using PERF_SAMPLE_RAW generally acceptable > for "advanced usage" scenarios?
No.
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