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    Subject[PATCH 0/4] perf tools: Add support for IBS
    Date
    This patch series adds perf tool support for IBS. It is related to the
    kernel patches I sent out recently.

    IBS is implemented using dynamic pmu allocation. Thus, esp. event
    selection and sample encoding requires handling of dynamically
    generated pmu identifiers that can be queried in sysfs. For ibs there
    exists 2 pmus:

    /sys/bus/event_source/devices/ibs_op/type
    /sys/bus/event_source/devices/ibs_fetch/type

    Lin's patch implements a new syntax to specify events of dynamically
    allocated pmus. This can be used to specify ibs events for perf
    record, etc., for example:

    perf record -e ibs_op:r0 -c 100000 -R -a <command>
    perf record -e ibs_fetch:r0 -c 100000 -R -a <command>

    With patch #2 dynamically generated pmu mappings are added to the
    perf.data header. This information is required to decode samples and
    to find the originating pmu it is comming from. Since the information
    in sysfs may change we need to store it in the header.

    A generic perl handler is added to process IBS events with perf
    script. There was only support for tracepoints. The following perf
    script commands can be used to collect and display IBS samples:

    perf script ibs ibs_op <command>
    perf script ibs ibs_fetch <command>
    perf script record ibs ibs_op -c 500000 <command>
    perf script report ibs
    perf script record ibs ibs_op -c 500000 <command> | perf script report ibs

    -Robert


    Lin Ming (1):
    perf tool: Parse general/raw events from sysfs

    Robert Richter (3):
    perf tools: Add pmu mappings to header information
    perf script: Add generic perl handler to process events
    perf script: Add script to collect and display IBS samples

    tools/perf/scripts/perl/bin/ibs-record | 23 +++++
    tools/perf/scripts/perl/bin/ibs-report | 6 +
    tools/perf/scripts/perl/ibs.pl | 47 +++++++++
    tools/perf/util/header.c | 99 ++++++++++++++++++++
    tools/perf/util/header.h | 1 +
    tools/perf/util/parse-events.c | 84 ++++++++++++++++-
    .../perf/util/scripting-engines/trace-event-perl.c | 73 +++++++++++++-
    7 files changed, 325 insertions(+), 8 deletions(-)
    create mode 100644 tools/perf/scripts/perl/bin/ibs-record
    create mode 100644 tools/perf/scripts/perl/bin/ibs-report
    create mode 100644 tools/perf/scripts/perl/ibs.pl

    --
    1.7.7




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