linux-kernel - [PATCH v1 0/2] perf stat: Support --all-kernel and --all-user

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Date:   Wed, 25 Sep 2019 10:02:16 +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 v1 0/2] perf stat: Support --all-kernel and --all-user

This patch series supports the new options "--all-kernel" and "--all-user"
in perf-stat.

For example,

root@kbl:~# perf stat -e cycles,instructions --all-kernel --all-user -a -- sleep 1

 Performance counter stats for 'system wide':

        19,156,665      cycles:k
         7,265,342      instructions:k            #    0.38  insn per cycle
     4,511,186,293      cycles:u
       121,881,436      instructions:u            #    0.03  insn per cycle

       1.001153540 seconds time elapsed


 root@kbl:~# perf stat -a --topdown --all-kernel -- sleep 1

 Performance counter stats for 'system wide':

                                  retiring:k    bad speculation:k     frontend bound:k      backend bound:k
S0-D0-C0           2                 7.6%                 1.8%                40.5%                50.0%
S0-D0-C1           2                15.4%                 3.4%                14.4%                66.8%
S0-D0-C2           2                15.8%                 5.1%                26.9%                52.2%
S0-D0-C3           2                 5.7%                 5.7%                46.2%                42.4%

       1.000771709 seconds time elapsed

More detail information are in the patch descriptions.

Jin Yao (2):
  perf stat: Support --all-kernel and --all-user options
  perf stat: Support topdown with --all-kernel/--all-user

 tools/perf/Documentation/perf-record.txt |   3 +-
 tools/perf/Documentation/perf-stat.txt   |   7 +
 tools/perf/builtin-stat.c                | 200 ++++++++++++++++++++++-
 tools/perf/util/stat-shadow.c            | 167 ++++++++++++++-----
 tools/perf/util/stat.h                   |  23 +++
 5 files changed, 353 insertions(+), 47 deletions(-)

-- 
2.17.1