linux-kernel - [PATCH v3 0/4] perf: Support a new 'percore' event qualifier

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Date:   Tue, 19 Mar 2019 16:56:52 +0800
From:   Jin Yao <yao.jin@...ux.intel.com>
To:     acme@...nel.org, jolsa@...nel.org, peterz@...radead.org,
        mingo@...hat.com, alexander.shishkin@...ux.intel.com
Cc:     Linux-kernel@...r.kernel.org, ak@...ux.intel.com,
        kan.liang@...el.com, yao.jin@...el.com,
        Jin Yao <yao.jin@...ux.intel.com>
Subject: [PATCH v3 0/4] perf: Support a new 'percore' event qualifier

The 'percore' event qualifier which sums up the event counts for both
hardware threads in a core. For example,

perf stat -e cpu/event=0,umask=0x3,percore=1/,cpu/event=0,umask=0x3/

In this example, we count the event 'ref-cycles' per-core and per-CPU in
one perf stat command-line.

We can already support per-core counting with --per-core, but it's
often useful to do this together with other metrics that are collected
per CPU (per hardware thread). So this patch series supports this
per-core counting on a event level.

 v3:
 ---
 Simplify the patch: "perf: Add a 'percore' event qualifier"
 Other patches don't have changes.

 v2:
 ---
 1. Change 'coresum' to 'percore'.
 2. Move the aggregate counts printing to a seperate patch.

Jin Yao (4):
  perf: Add a 'percore' event qualifier
  perf stat: Factor out aggregate counts printing
  perf stat: Support 'percore' event qualifier
  perf test: Add a simple test for term 'percore'

 tools/perf/Documentation/perf-stat.txt |   4 ++
 tools/perf/builtin-stat.c              |  21 +++++++
 tools/perf/tests/parse-events.c        |  10 ++-
 tools/perf/util/evsel.c                |   2 +
 tools/perf/util/evsel.h                |   3 +
 tools/perf/util/parse-events.c         |  27 +++++++++
 tools/perf/util/parse-events.h         |   1 +
 tools/perf/util/parse-events.l         |   1 +
 tools/perf/util/stat-display.c         | 108 ++++++++++++++++++++++++---------
 tools/perf/util/stat.c                 |   8 ++-
 10 files changed, 151 insertions(+), 34 deletions(-)

-- 
2.7.4