linux-kernel - Re: [PATCH] perf, tools, report: Add support for srcfile sort key

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Message-ID: <20150810145127.GA20967@kernel.org>
Date:	Mon, 10 Aug 2015 11:51:27 -0300
From:	Arnaldo Carvalho de Melo <acme@...nel.org>
To:	Andi Kleen <andi@...stfloor.org>
Cc:	Namhyung Kim <namhyung@...nel.org>, jolsa@...nel.org,
	linux-kernel@...r.kernel.org, Andi Kleen <ak@...ux.intel.com>
Subject: Re: [PATCH] perf, tools, report: Add support for srcfile sort key

Em Sun, Aug 09, 2015 at 06:03:35PM +0200, Andi Kleen escreveu:
> On Sun, Aug 09, 2015 at 12:30:49PM +0900, Namhyung Kim wrote:
> > Hi Andi,
> > 
> > On Sat, Aug 08, 2015 at 04:27:35AM +0200, Andi Kleen wrote:
> > > On Fri, Aug 07, 2015 at 09:02:15PM -0300, Arnaldo Carvalho de Melo wrote:
> > > > Em Fri, Aug 07, 2015 at 08:51:45PM -0300, Arnaldo Carvalho de Melo escreveu:
> > > > > Em Fri, Aug 07, 2015 at 03:54:24PM -0700, Andi Kleen escreveu:
> > > > > > From: Andi Kleen <ak@...ux.intel.com>
> > > > > > 
> > > > > > In some cases it's useful to characterize samples by file. This is useful
> > > > > > to get a higher level categorization, for example to map cost to
> > > > > > subsystems.
> > > > > > 
> > > > > > Add a srcfile sort key to perf report. It builds on top of the existing
> > > > > > srcline support.
> > > > > 
> > > > > Applied
> > > > 
> > > > Humm, holding this up a bit, further testing showed some oddities,
> > > > fedora21, the width of the column is being limited to the lenght of the
> > > > header
> > > 
> > > Yes I've seen that, I just use -w normally. It also happens with --sort
> > > srcline. The column sizing code could probably be somewhat smarter and
> > > always allow the last column to become as wide as needed. But that's
> > > something that should be done separately; I don't think it belongs
> > > into this patch.
> > 
> > Maybe something like this?
> 
> Thanks. Should do the same thing for srcfile.

Thanks, applied, with Ack from Andi, will fix this with a commiter note
on Andi's patch for srcfile when applying it, now.
 
> One potential issue is that the srclines/files can be potentially very
> long, so it may be needed to give them a limit if they're not the last
> column.

That can come later.

- Arnaldo
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