linux-kernel - [RFC PATCH v2 3/6] perf vendor events arm64: Add cache metrics for neoverse-n2

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Message-Id: <1668411720-3581-4-git-send-email-renyu.zj@linux.alibaba.com>
Date:   Mon, 14 Nov 2022 15:41:57 +0800
From:   Jing Zhang <renyu.zj@...ux.alibaba.com>
To:     linux-arm-kernel@...ts.infradead.org,
        linux-perf-users@...r.kernel.org, linux-kernel@...r.kernel.org,
        John Garry <john.garry@...wei.com>,
        Will Deacon <will@...nel.org>,
        James Clark <james.clark@....com>,
        Mike Leach <mike.leach@...aro.org>,
        Leo Yan <leo.yan@...aro.org>
Cc:     Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...nel.org>,
        Namhyung Kim <namhyung@...nel.org>,
        Andrew Kilroy <andrew.kilroy@....com>,
        Shuai Xue <xueshuai@...ux.alibaba.com>,
        Zhuo Song <zhuo.song@...ux.alibaba.com>,
        Jing Zhang <renyu.zj@...ux.alibaba.com>
Subject: [RFC PATCH v2 3/6] perf vendor events arm64: Add cache metrics for neoverse-n2

Add cache related metrics.

Signed-off-by: Jing Zhang <renyu.zj@...ux.alibaba.com>
---
 .../arch/arm64/arm/neoverse-n2/metrics.json        | 77 ++++++++++++++++++++++
 1 file changed, 77 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 324ca12..1690ef6 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
@@ -54,5 +54,82 @@
         "BriefDescription": "The rate of DTLB Walks to the overall TLB lookups",
         "MetricGroup": "TLB",
         "MetricName": "dtlb_walk_rate"
+    },
+    {
+        "MetricExpr": "L1I_CACHE_REFILL / INST_RETIRED * 1000",
+        "PublicDescription": "The rate of L1 I-Cache misses per kilo instructions",
+        "BriefDescription": "The rate of L1 I-Cache misses per kilo instructions",
+        "MetricGroup": "Cache",
+        "MetricName": "l1i_cache_mpki"
+    },
+    {
+        "MetricExpr": "L1I_CACHE_REFILL / L1I_CACHE",
+        "PublicDescription": "The rate of L1 I-Cache misses to the overall L1 I-Cache",
+        "BriefDescription": "The rate of L1 I-Cache misses to the overall L1 I-Cache",
+        "MetricGroup": "Cache",
+        "MetricName": "l1i_cache_miss_rate"
+    },
+    {
+        "MetricExpr": "L1D_CACHE_REFILL / INST_RETIRED * 1000",
+        "PublicDescription": "The rate of L1 D-Cache misses per kilo instructions",
+        "BriefDescription": "The rate of L1 D-Cache misses per kilo instructions",
+        "MetricGroup": "Cache",
+        "MetricName": "l1d_cache_mpki"
+    },
+    {
+        "MetricExpr": "L1D_CACHE_REFILL / L1D_CACHE",
+        "PublicDescription": "The rate of L1 D-Cache misses to the overall L1 D-Cache",
+        "BriefDescription": "The rate of L1 D-Cache misses to the overall L1 D-Cache",
+        "MetricGroup": "Cache",
+        "MetricName": "l1d_cache_miss_rate"
+    },
+    {
+        "MetricExpr": "L2D_CACHE_REFILL / INST_RETIRED * 1000",
+        "PublicDescription": "The rate of L2 D-Cache misses per kilo instructions",
+        "BriefDescription": "The rate of L2 D-Cache misses per kilo instructions",
+        "MetricGroup": "Cache",
+        "MetricName": "l2d_cache_mpki"
+    },
+    {
+        "MetricExpr": "L2D_CACHE_REFILL / L2D_CACHE",
+        "PublicDescription": "The rate of L2 D-Cache misses to the overall L2 D-Cache",
+        "BriefDescription": "The rate of L2 D-Cache misses to the overall L2 D-Cache",
+        "MetricGroup": "Cache",
+        "MetricName": "l2d_cache_miss_rate"
+    },
+    {
+        "MetricExpr": "L3D_CACHE_REFILL / INST_RETIRED * 1000",
+        "PublicDescription": "The rate of L3 D-Cache misses per kilo instructions",
+        "BriefDescription": "The rate of L3 D-Cache misses per kilo instructions",
+        "MetricGroup": "Cache",
+        "MetricName": "l3d_cache_mpki"
+    },
+    {
+        "MetricExpr": "L3D_CACHE_REFILL / L3D_CACHE",
+        "PublicDescription": "The rate of L3 D-Cache misses to the overall L3 D-Cache",
+        "BriefDescription": "The rate of L3 D-Cache misses to the overall L3 D-Cache",
+        "MetricGroup": "Cache",
+        "MetricName": "l3d_cache_miss_rate"
+    },
+    {
+        "MetricExpr": "LL_CACHE_MISS_RD / INST_RETIRED * 1000",
+        "PublicDescription": "The rate of LL Cache read misses per kilo instructions",
+        "BriefDescription": "The rate of LL Cache read misses per kilo instructions",
+        "MetricGroup": "Cache",
+        "MetricName": "ll_cache_read_mpki"
+    },
+    {
+        "MetricExpr": "LL_CACHE_MISS_RD / LL_CACHE_RD",
+        "PublicDescription": "The rate of LL Cache read misses to the overall LL Cache read",
+        "BriefDescription": "The rate of LL Cache read misses to the overall LL Cache read",
+        "MetricGroup": "Cache",
+        "MetricName": "ll_cache_read_miss_rate"
+    },
+    {
+        "MetricExpr": "(LL_CACHE_RD - LL_CACHE_MISS_RD) / LL_CACHE_RD",
+        "PublicDescription": "The rate of LL Cache read hit to the overall LL Cache read",
+        "BriefDescription": "The rate of LL Cache read hit to the overall LL Cache read",
+        "MetricGroup": "Cache",
+        "MetricName": "ll_cache_read_hit_rate"
     }
 ]
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