Messages in this thread Patch in this message | | | Date | Wed, 13 Mar 2024 22:58:36 -0700 | Subject | [PATCH v3 09/12] perf jevents: Add uncore l3 metric group for AMD | From | Ian Rogers <> |
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Metrics use the amd_l3 PMU for access/miss/hit information.
Signed-off-by: Ian Rogers <irogers@google.com> --- tools/perf/pmu-events/amd_metrics.py | 17 +++++++++++++++++ 1 file changed, 17 insertions(+)
diff --git a/tools/perf/pmu-events/amd_metrics.py b/tools/perf/pmu-events/amd_metrics.py index 1bddfb939597..79312e33c2d0 100755 --- a/tools/perf/pmu-events/amd_metrics.py +++ b/tools/perf/pmu-events/amd_metrics.py @@ -466,6 +466,22 @@ def Rapl() -> MetricGroup: return MetricGroup("cpu_power", metrics, description="Processor socket power consumption estimates") +def UncoreL3(): + acc = Event("l3_lookup_state.all_coherent_accesses_to_l3", + "l3_lookup_state.all_l3_req_typs") + miss = Event("l3_lookup_state.l3_miss", + "l3_comb_clstr_state.request_miss") + acc = max(acc, miss) + hits = acc - miss + + return MetricGroup("l3", [ + Metric("l3_accesses", "L3 victim cache accesses", + d_ratio(acc, interval_sec), "accesses/sec"), + Metric("l3_hits", "L3 victim cache hit rate", d_ratio(hits, acc), "100%"), + Metric("l3_miss", "L3 victim cache miss rate", d_ratio(miss, acc), + "100%"), + ], description="L3 cache breakdown per CCX") + def main() -> None: global _args @@ -501,6 +517,7 @@ def main() -> None: AmdUpc(), Idle(), Rapl(), + UncoreL3(), ]) if _args.metricgroups: -- 2.44.0.278.ge034bb2e1d-goog
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