linux-kernel - [PATCH RFC V7 0/7] per event callgraph and time support

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Date:	Wed, 29 Jul 2015 05:42:09 -0400
From:	Kan Liang <kan.liang@...el.com>
To:	acme@...nel.org, jolsa@...nel.org
Cc:	namhyung@...nel.org, ak@...ux.intel.com,
	linux-kernel@...r.kernel.org, Kan Liang <kan.liang@...el.com>
Subject: [PATCH RFC V7 0/7] per event callgraph and time support

This patchkit adds the ability to turn off callgraphs and time stamps
per event. This in term can reduce sampling overhead and the size of
the perf.data.

Changes since V1:
  - Break up V1 patches into three patches(parse option changes,
    partial time support and partial callgraph support).
  - Use strings 'fp,dwarf,lbr,no' to identify callchains
  - Add test case in parse-events.c

Changes since V2:
  - Rebase on 60cd37eb10

Changes since V3:
  - Replace OPT_CALLBACK_SET by current existing callback mechanism.
  - Using perf_evsel__set_sample_bit if possible
  - Change the expression "partial" to "per event"
  - Using global variable to indicate if 'time' is set per event.
    If 'time' is not set, enable it by default for perf record.

Changes since V4:
  - Fix issue of setting callgraph_set

Changes since V5:
  - per-event settings over global settings in general
  - support for event post configuration structure

Changes since V6:
  - Add error infor for per-event time
  - rename the option to call-graph and stacl-size
  - refine parse/config callchain functions,
    and reuse them for per-event callgraph setting
  - Modify perf test

Jiri Olsa (2):
  perf tools: Add support for event post configuration
  perf tools: Force period term to overload global settings

Kan Liang (5):
  perf,tools: introduce callgraph_set for callgraph option
  perf,tools: per-event time support
  perf,tools: refine parse/config callchain functions
  perf,tools: per-event callgraph support
  perf,tests: Add tests to callgraph and time parse

 tools/perf/Documentation/perf-record.txt |  10 ++-
 tools/perf/builtin-record.c              |  11 +++-
 tools/perf/perf.h                        |   1 +
 tools/perf/tests/parse-events.c          |  50 ++++++++++++++-
 tools/perf/util/callchain.c              |  14 ++---
 tools/perf/util/callchain.h              |   2 +-
 tools/perf/util/evsel.c                  | 105 +++++++++++++++++++++++++++++--
 tools/perf/util/evsel.h                  |  26 ++++++++
 tools/perf/util/parse-events.c           |  94 +++++++++++++++++++++++----
 tools/perf/util/parse-events.h           |   3 +
 tools/perf/util/parse-events.l           |   3 +
 tools/perf/util/pmu.c                    |   3 +-
 12 files changed, 289 insertions(+), 33 deletions(-)

-- 
1.8.3.1

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