linux-kernel - Re: [PATCH 11/12] perf diff: Add -F option to display formula for computation

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Message-ID: <20120907093004.GC3411@krava.brq.redhat.com>
Date:	Fri, 7 Sep 2012 11:30:04 +0200
From:	Jiri Olsa <jolsa@...hat.com>
To:	Namhyung Kim <namhyung@...nel.org>
Cc:	linux-kernel@...r.kernel.org,
	Arnaldo Carvalho de Melo <acme@...stprotocols.net>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Ingo Molnar <mingo@...e.hu>, Paul Mackerras <paulus@...ba.org>,
	Corey Ashford <cjashfor@...ux.vnet.ibm.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	Andi Kleen <andi@...stfloor.org>,
	David Ahern <dsahern@...il.com>
Subject: Re: [PATCH 11/12] perf diff: Add -F option to display formula for
 computation

On Fri, Sep 07, 2012 at 03:02:37PM +0900, Namhyung Kim wrote:
> On Thu,  6 Sep 2012 17:47:05 +0200, Jiri Olsa wrote:
> > Adding -F option to display the formula for specified computation.
> > This is mainly to facilitate debuging, but can be usefull anyway.
> >

SNIP

> > @@ -175,6 +182,7 @@ DEF_COLUMN(delta, HISTC_DELTA, 8, "Delta")
> >  DEF_COLUMN(ratio, HISTC_RATIO, 14, "Ratio")
> >  DEF_COLUMN(wdiff, HISTC_WEIGHTED_DIFF, 13, "Weighted diff")
> >  DEF_COLUMN(displacement, HISTC_DISPLACEMENT, 5, "Displ")
> > +DEF_COLUMN(formula_wdiff, HISTC_FORMULA_WEIGHTED_DIFF, 50, "Formula")
> 
> This fixed 50 column width looks too large to me.  What about make it
> dynamic like sort_list?

ok, good idea

jirka
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