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perf vendor events: Add JSON metrics for Arm CMN

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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>
Reviewed-by: John Garry <john.g.garry@oracle.com>
Reviewed-by: Ian Rogers <irogers@google.com>
Tested-by: Ian Rogers <irogers@google.com>
Cc: James Clark <james.clark@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Shuai Xue <xueshuai@linux.alibaba.com>
Cc: Zhuo Song <zhuo.song@linux.alibaba.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-doc@vger.kernel.org
Link: https://lore.kernel.org/r/1695794391-34817-8-git-send-email-renyu.zj@linux.alibaba.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
This commit is contained in:
Jing Zhang 2023-09-27 13:59:51 +08:00 committed by Namhyung Kim
parent 0b4de7bdf4
commit 4f3ee7d1d5
1 changed files with 74 additions and 0 deletions
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74
tools/perf/pmu-events/arch/arm64/arm/cmn/sys/metric.json Normal file
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[
{
"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).*"
}
]