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perf pmu-events: Add retirement latency to JSON events inside of perf

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The updated Intel vendor events add retirement latency for
graniterapids:

  https://lore.kernel.org/lkml/20250322063403.364981-14-irogers@google.com/

This change makes those values available within an alias/event within a
PMU and saves them into the evsel at event parse time.

When no TPEBS data is available the default values are substituted in
for TMA metrics that are using retirement latency events - currently
just those on graniterapids.

Reviewed-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Weilin Wang <weilin.wang@intel.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexandre Torgue <alexandre.torgue@foss.st.com>
Cc: Andreas Färber <afaerber@suse.de>
Cc: Caleb Biggers <caleb.biggers@intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com>
Cc: Perry Taylor <perry.taylor@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Falcon <thomas.falcon@intel.com>
Link: https://lore.kernel.org/r/20250414174134.3095492-16-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Ian Rogers
2025-04-14 10:41:33 -07:00
committed by Arnaldo Carvalho de Melo
parent f19306f065
commit fc807b6bde
8 changed files with 220 additions and 122 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
tools/perf/util/parse-events.c
View File

@@ -1539,6 +1539,10 @@ static int parse_events_add_pmu(struct parse_events_state *parse_state,
evsel->scale = info.scale;
evsel->per_pkg = info.per_pkg;
evsel->snapshot = info.snapshot;
evsel->retirement_latency.mean = info.retirement_latency_mean;
evsel->retirement_latency.min = info.retirement_latency_min;
evsel->retirement_latency.max = info.retirement_latency_max;
return 0;
}