linux-kernel - Re: [RFC/PATCHSET 00/17] perf tools: Add support for hierachy view (v2)

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Message-ID: <20160119104506.GB1324@danjae.kornet>
Date:	Tue, 19 Jan 2016 19:45:06 +0900
From:	Namhyung Kim <namhyung@...nel.org>
To:	Andi Kleen <andi@...stfloor.org>
Cc:	Arnaldo Carvalho de Melo <acme@...nel.org>,
	Ingo Molnar <mingo@...nel.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Jiri Olsa <jolsa@...nel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	David Ahern <dsahern@...il.com>,
	Stephane Eranian <eranian@...gle.com>,
	Wang Nan <wangnan0@...wei.com>,
	Don Zickus <dzickus@...hat.com>,
	Pekka Enberg <penberg@...nel.org>,
	Moinuddin Quadri <moin18@...il.com>
Subject: Re: [RFC/PATCHSET 00/17] perf tools: Add support for hierachy view
 (v2)

Hi Andi,

On Sun, Jan 17, 2016 at 08:31:53PM +0100, Andi Kleen wrote:
> On Sun, Jan 17, 2016 at 01:03:00AM +0900, Namhyung Kim wrote:
> > Hello,
> > 
> > This is v2 attempt of my earlier patchset [1].  This patchset
> > implements a new feature that collects hist entries in a hierachical
> > manner.  That means lower-level entries belong to an upper-level
> > entry.  The entry hierachy is built on the sort keys given, so users
> > can set it whatever they want.  It only shows top-level entries first,
> > and user can expand/collapse it dynamically.
> 
> Thanks that's very nice. Especially for TSX profiling it was always
> very annoying that the other sort keys didn't actually sort.
> It should be very useful for LBR view too.

Glad to hear that you like it. :)


> 
> Now we only need a better percent-limit that handles all
> leaves correctly...

Hmm.. could you tell me where the percent-limit doesn't work
correctly?

Thanks,
Namhyung