[RFC PATCH v2 2/6] perf vendor events arm64: Add TLB metrics for neoverse-n2

From: Jing Zhang <renyu.zj@linux.alibaba.com>
To: linux-arm-kernel@lists.infradead.org,
	linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org,
	John Garry <john.garry@huawei.com>, Will Deacon <will@kernel.org>,
	James Clark <james.clark@arm.com>,
	Mike Leach <mike.leach@linaro.org>, Leo Yan <leo.yan@linaro.org>
Cc: Peter Zijlstra <peterz@infradead.org>,
	Ingo Molnar <mingo@redhat.com>,
	Arnaldo Carvalho de Melo <acme@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	Alexander Shishkin <alexander.shishkin@linux.intel.com>,
	Jiri Olsa <jolsa@kernel.org>, Namhyung Kim <namhyung@kernel.org>,
	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: [RFC PATCH v2 2/6] perf vendor events arm64: Add TLB metrics for neoverse-n2
Date: Mon, 14 Nov 2022 15:41:56 +0800	[thread overview]
Message-ID: <1668411720-3581-3-git-send-email-renyu.zj@linux.alibaba.com> (raw)
In-Reply-To: <1668411720-3581-1-git-send-email-renyu.zj@linux.alibaba.com>
In-Reply-To: <1667214694-89839-1-git-send-email-renyu.zj@linux.alibaba.com>

Add TLB related metrics.

Signed-off-by: Jing Zhang <renyu.zj@linux.alibaba.com>
---
 .../arch/arm64/arm/neoverse-n2/metrics.json        | 28 ++++++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/tools/perf/pmu-events/arch/arm64/arm/neoverse-n2/metrics.json b/tools/perf/pmu-events/arch/arm64/arm/neoverse-n2/metrics.json
index 0048dfe..324ca12 100644
--- a/tools/perf/pmu-events/arch/arm64/arm/neoverse-n2/metrics.json
+++ b/tools/perf/pmu-events/arch/arm64/arm/neoverse-n2/metrics.json
@@ -26,5 +26,33 @@
         "BriefDescription": "Backend Bound L1 topdown metric",
         "MetricGroup": "TopDownL1",
         "MetricName": "backend_bound"
+    },
+    {
+        "MetricExpr": "ITLB_WALK / INST_RETIRED * 1000",
+        "PublicDescription": "The rate of TLB Walks per kilo instructions for instruction accesses",
+        "BriefDescription": "The rate of TLB Walks per kilo instructions for instruction accesses",
+        "MetricGroup": "TLB",
+        "MetricName": "itlb_mpki"
+    },
+    {
+        "MetricExpr": "ITLB_WALK / L1I_TLB",
+        "PublicDescription": "The rate of ITLB Walks to the overall TLB lookups initiated from the instruction side",
+        "BriefDescription": "The rate of ITLB Walks to the overall TLB lookups",
+        "MetricGroup": "TLB",
+        "MetricName": "itlb_walk_rate"
+    },
+    {
+        "MetricExpr": "DTLB_WALK / INST_RETIRED * 1000",
+        "PublicDescription": "The rate of TLB Walks per kilo instructions for data accesses",
+        "BriefDescription": "The rate of TLB Walks per kilo instructions for data accesses",
+        "MetricGroup": "TLB",
+        "MetricName": "dtlb_mpki"
+    },
+    {
+        "MetricExpr": "DTLB_WALK / L1D_TLB",
+        "PublicDescription": "The rate of DTLB Walks to the overall TLB lookups made by the program",
+        "BriefDescription": "The rate of DTLB Walks to the overall TLB lookups",
+        "MetricGroup": "TLB",
+        "MetricName": "dtlb_walk_rate"
     }
 ]
\ No newline at end of file
-- 
1.8.3.1

