linux-kernel - Re: [PATCH 05/14] perf tools: Introduce new 'ftrace' tool

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Message-ID: <517A827B.1080905@gmail.com>
Date:	Fri, 26 Apr 2013 07:34:51 -0600
From:	David Ahern <dsahern@...il.com>
To:	Steven Rostedt <rostedt@...dmis.org>
CC:	Namhyung Kim <namhyung@...nel.org>, Jiri Olsa <jolsa@...hat.com>,
	Arnaldo Carvalho de Melo <acme@...stprotocols.net>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Paul Mackerras <paulus@...ba.org>,
	Ingo Molnar <mingo@...nel.org>,
	Namhyung Kim <namhyung.kim@....com>,
	LKML <linux-kernel@...r.kernel.org>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Stephane Eranian <eranian@...gle.com>
Subject: Re: [PATCH 05/14] perf tools: Introduce new 'ftrace' tool

On 4/25/13 7:05 AM, Steven Rostedt wrote:
>   Perf was added in 2.6.31, but do all
> functionalities still work that far back?


perf was accepted into 2.6.28 - first commit is 0793a61d.

It does have limited functionality (H/W and S/W counters) until 2.6.31.

David
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