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Subject[PATCH v5 5/5] perf vendor events: Add JSON metrics for Arm CMN
Date
Add JSON metrics for Arm CMN. Currently just add part of CMN PMU
metrics which are general and compatible for any SoC with CMN-ANY.

Signed-off-by: Jing Zhang <renyu.zj@linux.alibaba.com>
---
.../pmu-events/arch/arm64/arm/cmn/sys/metric.json | 74 ++++++++++++++++++++++
1 file changed, 74 insertions(+)
create mode 100644 tools/perf/pmu-events/arch/arm64/arm/cmn/sys/metric.json

diff --git a/tools/perf/pmu-events/arch/arm64/arm/cmn/sys/metric.json b/tools/perf/pmu-events/arch/arm64/arm/cmn/sys/metric.json
new file mode 100644
index 0000000..64db534
--- /dev/null
+++ b/tools/perf/pmu-events/arch/arm64/arm/cmn/sys/metric.json
@@ -0,0 +1,74 @@
+[
+ {
+ "MetricName": "slc_miss_rate",
+ "BriefDescription": "The system level cache miss rate.",
+ "MetricGroup": "cmn",
+ "MetricExpr": "hnf_cache_miss / hnf_slc_sf_cache_access",
+ "ScaleUnit": "100%",
+ "Unit": "arm_cmn",
+ "Compat": "434*;436*;43c*;43a*"
+ },
+ {
+ "MetricName": "hnf_message_retry_rate",
+ "BriefDescription": "HN-F message retry rate indicates whether a lack of credits is causing the bottlenecks.",
+ "MetricGroup": "cmn",
+ "MetricExpr": "hnf_pocq_retry / hnf_pocq_reqs_recvd",
+ "ScaleUnit": "100%",
+ "Unit": "arm_cmn",
+ "Compat": "434*;436*;43c*;43a*"
+ },
+ {
+ "MetricName": "sf_hit_rate",
+ "BriefDescription": "Snoop filter hit rate can be used to measure the snoop filter efficiency.",
+ "MetricGroup": "cmn",
+ "MetricExpr": "hnf_sf_hit / hnf_slc_sf_cache_access",
+ "ScaleUnit": "100%",
+ "Unit": "arm_cmn",
+ "Compat": "434*;436*;43c*;43a*"
+ },
+ {
+ "MetricName": "mc_message_retry_rate",
+ "BriefDescription": "The memory controller request retries rate indicates whether the memory controller is the bottleneck.",
+ "MetricGroup": "cmn",
+ "MetricExpr": "hnf_mc_retries / hnf_mc_reqs",
+ "ScaleUnit": "100%",
+ "Unit": "arm_cmn",
+ "Compat": "434*;436*;43c*;43a*"
+ },
+ {
+ "MetricName": "rni_actual_read_bandwidth.all",
+ "BriefDescription": "This event measure the actual bandwidth that RN-I bridge sends to the interconnect.",
+ "MetricGroup": "cmn",
+ "MetricExpr": "rnid_rxdat_flits * 32 / 1e6 / duration_time",
+ "ScaleUnit": "1MB/s",
+ "Unit": "arm_cmn",
+ "Compat": "434*;436*;43c*;43a*"
+ },
+ {
+ "MetricName": "rni_actual_write_bandwidth.all",
+ "BriefDescription": "This event measures the actual write bandwidth at RN-I bridges.",
+ "MetricGroup": "cmn",
+ "MetricExpr": "rnid_txdat_flits * 32 / 1e6 / duration_time",
+ "ScaleUnit": "1MB/s",
+ "Unit": "arm_cmn",
+ "Compat": "434*;436*;43c*;43a*"
+ },
+ {
+ "MetricName": "rni_retry_rate",
+ "BriefDescription": "RN-I bridge retry rate indicates whether the memory controller is the bottleneck.",
+ "MetricGroup": "cmn",
+ "MetricExpr": "rnid_txreq_flits_retried / rnid_txreq_flits_total",
+ "ScaleUnit": "100%",
+ "Unit": "arm_cmn",
+ "Compat": "434*;436*;43c*;43a*"
+ },
+ {
+ "MetricName": "sbsx_actual_write_bandwidth.all",
+ "BriefDescription": "sbsx actual write bandwidth.",
+ "MetricGroup": "cmn",
+ "MetricExpr": "sbsx_txdat_flitv * 32 / 1e6 / duration_time",
+ "ScaleUnit": "1MB/s",
+ "Unit": "arm_cmn",
+ "Compat": "434*;436*;43c*;43a*"
+ }
+]
--
1.8.3.1
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