Re: [PATCH] perf, x86: Enabled PEBS event to be exported in a raw format

Michael Ellerman
2012-07-03T07:36:29Z

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.

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?

cheers