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    SubjectRe: [PATCH V2 07/13] perf tools: handle PERF_RECORD_OVERHEAD record type
    On Fri, Dec 02, 2016 at 04:19:15PM -0500, kan.liang@intel.com wrote:
    > From: Kan Liang <kan.liang@intel.com>
    >
    > The infrastructure to handle PERF_RECORD_OVERHEAD record type.
    > A new perf report option is introduced as a knob to show the profiling
    > overhead information. The option also forces tty output.
    >
    > The overhead information is auxillary information, so it should be
    > possible to access it together with normal sampling information in a
    > single output file. But the overhead is overall profiling time cost, not
    > per-sample/event profiling time cost. Making overhead a standard sort
    > key could confuse the normal samples.
    > So the information is printed separately in the head of the output.
    >
    > Signed-off-by: Kan Liang <kan.liang@intel.com>
    > ---
    > tools/perf/Documentation/perf-report.txt | 3 +++
    > tools/perf/builtin-report.c | 16 +++++++++++++++-
    > tools/perf/util/event.c | 9 +++++++++
    > tools/perf/util/event.h | 11 +++++++++++
    > tools/perf/util/evlist.c | 6 ++++++
    > tools/perf/util/evlist.h | 1 +
    > tools/perf/util/machine.c | 10 ++++++++++
    > tools/perf/util/machine.h | 3 +++
    > tools/perf/util/session.c | 21 +++++++++++++++++++++
    > tools/perf/util/session.h | 3 +++
    > tools/perf/util/symbol.h | 3 ++-
    > tools/perf/util/tool.h | 1 +
    > 12 files changed, 85 insertions(+), 2 deletions(-)

    I think also perf inject needs repipe this overhead handler

    jirka

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