[PATCH v8 7/9] perf vendor events arm64: Add branch metrics for neoverse-n2-v2

Jing Zhang
2023-01-17T07:30:45Z

Add branch related metrics.

Signed-off-by: Jing Zhang <renyu.zj@linux.alibaba.com>
Reviewed-by: John Garry <john.g.garry@oracle.com>
Acked-by: Ian Rogers <irogers@google.com>
---
.../arch/arm64/arm/neoverse-n2-v2/metrics.json | 21 +++++++++++++++++++++
1 file changed, 21 insertions(+)

diff --git a/tools/perf/pmu-events/arch/arm64/arm/neoverse-n2-v2/metrics.json b/tools/perf/pmu-events/arch/arm64/arm/neoverse-n2-v2/metrics.json
index 08c6aaa..afcdb17 100644
--- a/tools/perf/pmu-events/arch/arm64/arm/neoverse-n2-v2/metrics.json
+++ b/tools/perf/pmu-events/arch/arm64/arm/neoverse-n2-v2/metrics.json
@@ -139,5 +139,26 @@
"MetricGroup": "Cache",
"MetricName": "ll_cache_read_hit_rate",
"ScaleUnit": "100%"
+ },
+ {
+ "MetricExpr": "BR_MIS_PRED_RETIRED / INST_RETIRED * 1000",
+ "BriefDescription": "The rate of branches mis-predicted per kilo instructions",
+ "MetricGroup": "Branch",
+ "MetricName": "branch_mpki",
+ "ScaleUnit": "1MPKI"
+ },
+ {
+ "MetricExpr": "BR_RETIRED / INST_RETIRED * 1000",
+ "BriefDescription": "The rate of branches retired per kilo instructions",
+ "MetricGroup": "Branch",
+ "MetricName": "branch_pki",
+ "ScaleUnit": "1PKI"
+ },
+ {
+ "MetricExpr": "BR_MIS_PRED_RETIRED / BR_RETIRED",
+ "BriefDescription": "The rate of branches mis-predited to the overall branches",
+ "MetricGroup": "Branch",
+ "MetricName": "branch_miss_pred_rate",
+ "ScaleUnit": "100%"
}
]
--
1.8.3.1