linux-kernel - Re: [RFC 00/26] perf tools: Introduce hists specific format entries

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Message-ID: <20160125143743.GA10064@krava.brq.redhat.com>
Date:	Mon, 25 Jan 2016 15:37:43 +0100
From:	Jiri Olsa <jolsa@...hat.com>
To:	Namhyung Kim <namhyung@...nel.org>
Cc:	Jiri Olsa <jolsa@...nel.org>,
	Arnaldo Carvalho de Melo <acme@...nel.org>,
	lkml <linux-kernel@...r.kernel.org>,
	David Ahern <dsahern@...il.com>,
	Ingo Molnar <mingo@...nel.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>
Subject: Re: [RFC 00/26] perf tools: Introduce hists specific format entries

On Mon, Jan 25, 2016 at 11:24:24PM +0900, Namhyung Kim wrote:
> Hi Jiri,
> 
> On Mon, Jan 25, 2016 at 08:15:52AM +0100, Jiri Olsa wrote:
> > On Mon, Jan 18, 2016 at 10:23:58AM +0100, Jiri Olsa wrote:
> > > hi,
> > > currently we have global format sort and output
> > > lists. This rfc patchset introduces hists object
> > > based format entries to allow the hist object to
> > > carry specific format entries.
> > > 
> > > This will allow to have distinguished hist objects
> > > displaying different stuff in output.
> 
> The concepth is OK.  But I don't want to embed hists into the
> hist_entry for hierarchy mode.  As you said it'd be better to factor
> out common bits and embed it both from hists and hist entry.  In the
> minimal, two rbroot (for in and out) and a format list would be
> required IMHO.

right.. however this patchset just adds the support to have
format lists (sort and output) defined for the hists object

I plan the 'cutting out common hists' part to come after this
one and after we merge your hierachy view patchset

thanks,
jirka