linux-kernel - [PATCH 0/3] perf: callchain-specific annotation

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Date:   Tue, 18 Apr 2017 00:55:17 +0200
From:   Alexis Berlemont <alexis.berlemont@...il.com>
To:     linux-kernel@...r.kernel.org
Cc:     Alexis Berlemont <alexis.berlemont@...il.com>,
        peterz@...radead.org, mingo@...hat.com, acme@...nel.org,
        alexander.shishkin@...ux.intel.com
Subject: [PATCH 0/3] perf: callchain-specific annotation

Hi,

These patches are a proposal to fulfill the following point of perf's TODO list
(https://perf.wiki.kernel.org/index.php/Todo):

* What I want is that if I am on bar*(), it annotates bar*(), no samples just
  the call site (obtained from the callchain) dissassembly. This is useful
  because in many cases there maybe multiple call sites within a function and
  there maybe inlines in between. Hard to track down if you cannot figure out
  the surrounding addresses of the call site. (Request made by Stephane
  Eranian).

These patches are still at an early stage:
* Per-callchain annotation is only available in perf-report;
* Tests were not performed on real-world applications but on small basic ones.

Alexis.

Alexis Berlemont (3):
  perf annotate: implement per-callchain annotation histogram
  perf hists browser: add callchain-specific annotation
  perf report: fill per-callchain symbol annotation histograms

 tools/perf/builtin-report.c    |   8 ++
 tools/perf/ui/browsers/hists.c | 188 ++++++++++++++++++++++++-
 tools/perf/util/annotate.c     | 308 ++++++++++++++++++++++++++++++++++++++++-
 tools/perf/util/annotate.h     |  19 +++
 4 files changed, 517 insertions(+), 6 deletions(-)

--
2.12.2