perf stat,jevents: Introduce Default tags for the default mode

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Introduce a new metricgroup, Default, to tag all the metric groups which
will be collected in the default mode.

Add a new field, DefaultMetricgroupName, in the JSON file to indicate
the real metric group name. It will be printed in the default output
to replace the event names.

There is nothing changed for the output format.

On SPR, both TopdownL1 and TopdownL2 are displayed in the default
output.

On ARM, Intel ICL and later platforms (before SPR), only TopdownL1 is
displayed in the default output.

Suggested-by: Stephane Eranian <eranian@google.com>
Reviewed-by: Ian Rogers <irogers@google.com>
Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ahmad Yasin <ahmad.yasin@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20230615135315.3662428-4-kan.liang@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

...

This commit is contained in:

Kan Liang 2023-06-15 06:53:10 -07:00 • committed by Arnaldo Carvalho de Melo

parent 969a466144

commit b0a9e8f81f

4 changed files with 12 additions and 4 deletions

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4

tools/perf/builtin-stat.c

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5

tools/perf/pmu-events/jevents.py

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1

tools/perf/pmu-events/pmu-events.h

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6

tools/perf/util/metricgroup.c

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