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From:   Jing Zhang <renyu.zj@linux.alibaba.com>
To:     John Garry <john.g.garry@oracle.com>,
        Ian Rogers <irogers@google.com>
Cc:     Xing Zhengjun <zhengjun.xing@linux.intel.com>,
        Will Deacon <will@kernel.org>,
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        linux-arm-kernel@lists.infradead.org,
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        Peter Zijlstra <peterz@infradead.org>,
        Ingo Molnar <mingo@redhat.com>,
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        Mark Rutland <mark.rutland@arm.com>,
        Alexander Shishkin <alexander.shishkin@linux.intel.com>,
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        Andrew Kilroy <andrew.kilroy@arm.com>,
        Shuai Xue <xueshuai@linux.alibaba.com>,
        Zhuo Song <zhuo.song@linux.alibaba.com>,
        Jing Zhang <renyu.zj@linux.alibaba.com>
Subject: [PATCH v8 7/9] perf vendor events arm64: Add branch metrics for neoverse-n2-v2
Date:   Tue, 17 Jan 2023 15:29:31 +0800
Message-Id: <1673940573-90503-8-git-send-email-renyu.zj@linux.alibaba.com>
In-Reply-To: <1673940573-90503-1-git-send-email-renyu.zj@linux.alibaba.com>
References: <1673940573-90503-1-git-send-email-renyu.zj@linux.alibaba.com>
Precedence: bulk

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