linux-kernel - Re: [Questions] perf c2c: What's the current status of perf c2c?

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Message-ID: <20151209140357.GO6356@twins.programming.kicks-ass.net>
Date:	Wed, 9 Dec 2015 15:03:57 +0100
From:	Peter Zijlstra <peterz@...radead.org>
To:	Joe Mario <jmario@...hat.com>
Cc:	Jiri Olsa <jolsa@...hat.com>,
	Yunlong Song <yunlong.song@...wei.com>, dzickus@...hat.com,
	dsahern@...il.com, fweisbec@...il.com, efault@....de,
	paulus@...ba.org, rfowles@...hat.com, eranian@...gle.com,
	"acme@...nel.org >> Arnaldo Carvalho de Melo" <acme@...nel.org>,
	mingo@...hat.com,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Jiri Olsa <jolsa@...nel.org>,
	"wangnan0@...wei.com >> Wang Nan" <wangnan0@...wei.com>,
	fowles@...each.com, Namhyung Kim <namhyung@...nel.org>,
	andi@...stfloor.org
Subject: Re: [Questions] perf c2c: What's the current status of perf c2c?

On Wed, Dec 09, 2015 at 06:02:44AM -0500, Joe Mario wrote:
> Yes, that would be a great enhancement,

This is hardly new though; I've outlined the very same the first time
the c2c thing got mentioned.

> but is it any reason to hold up the current implementation?

I just wonder how much of c2c is still useful once we get it done
proper. And once such a tool is out there, its hard to kill, leaving us
with a maintenance burden we could do without.
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