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

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Message-ID: <20120628182649.GS4152@tassilo.jf.intel.com>
Date:	Thu, 28 Jun 2012 11:26:49 -0700
From:	Andi Kleen <ak@...ux.intel.com>
To:	Stephane Eranian <eranian@...gle.com>
Cc:	Peter Zijlstra <peterz@...radead.org>,
	Feng Tang <feng.tang@...el.com>,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	Ingo Molnar <mingo@...e.hu>, linux-kernel@...r.kernel.org,
	x86@...nel.org
Subject: Re: [PATCH] perf, x86: Enabled PEBS event to be exported in a raw
 format

> My problem with the script approach is that you may end up
> re-inventing a lot of the infrastructure
> already in perf in terms of histograming and sorting. I think scripts

All built into modern scripting languages. Only in C you have to reinvent
it.

> are good for dumping
> the raw data or very simply analysis. Now I recognize that they are
> handy to implement
> mahcine specific decoding of the samples.

The main use case is really custom analysis, so that people can do
whatever custom data mining they want.

But I expect once you get users engaged with a simple interface
you'll get much more. 

But even the existing script is quite useful and gives you
a lot of information. It's also very easy to extend to everyone
knowing SQLite.

Can you do all these things the simple script does?

-Andi
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