linux-kernel - Re: [PATCH 2/3] perf tools: Spare double comparison of callchain first entry

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Date:	Fri, 17 Jan 2014 17:07:42 +0100
From:	Frederic Weisbecker <fweisbec@...il.com>
To:	Namhyung Kim <namhyung@...nel.org>
Cc:	Arnaldo Carvalho de Melo <acme@...hat.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Adrian Hunter <adrian.hunter@...el.com>,
	David Ahern <dsahern@...il.com>,
	Ingo Molnar <mingo@...nel.org>, Jiri Olsa <jolsa@...hat.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Stephane Eranian <eranian@...gle.com>, acme@...stprotocols.net
Subject: Re: [PATCH 2/3] perf tools: Spare double comparison of callchain
 first entry

On Fri, Jan 17, 2014 at 04:56:18PM +0900, Namhyung Kim wrote:
> Hi Arnaldo and Frederic,
> 
> On Thu, 16 Jan 2014 17:47:34 -0200, Arnaldo Carvalho de Melo wrote:
> > Em Thu, Jan 16, 2014 at 06:34:58PM +0100, Frederic Weisbecker escreveu:
> >> On Thu, Jan 16, 2014 at 10:17:53AM +0900, Namhyung Kim wrote: 
> >> > I think if the sort key doesn't contain "symbol", unmatch case would be
> >> > increased as more various callchains would go into a same entry.
> >> 
> >> You mean -g fractal,0.5,callee,address ?
> >> 
> >> Hmm, actually I haven't seen much difference there.
> >
> > I guess he will, but will wait for Namhyung's final ack here, ok?
> 
> I meant sorting of hist entry like "-s cpu".   So as your number said
> it's not an issue IMHO.  Arnaldo, I'm good with this change please merge
> it. :)

Thanks a lot guys! :)
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