diff mbox series

[v2,2/5] perf vendor events: Add JSON metrics for CMN-700

Message ID 1682329456-19418-3-git-send-email-renyu.zj@linux.alibaba.com (mailing list archive)
State New, archived
Headers show
Series Add JSON metrics for arm CMN and Yitian710 DDR | expand

Commit Message

Jing Zhang April 24, 2023, 9:44 a.m. UTC 
Add JSON metrics for CMN-700. Currently just add part of CMN-700 PMU
metrics which are general and compatible for any SoC.

Signed-off-by: Jing Zhang <renyu.zj@linux.alibaba.com>
---
 .../arch/arm64/arm/cmn700/sys/metrics.json         | 74 ++++++++++++++++++++++
 tools/perf/pmu-events/jevents.py                   |  1 +
 2 files changed, 75 insertions(+)
 create mode 100644 tools/perf/pmu-events/arch/arm64/arm/cmn700/sys/metrics.json

Comments

John Garry May 1, 2023, 12:27 p.m. UTC | #1 
On 24/04/2023 10:44, Jing Zhang wrote:
> Add JSON metrics for CMN-700. Currently just add part of CMN-700 PMU
> metrics which are general and compatible for any SoC.
> 
> Signed-off-by: Jing Zhang <renyu.zj@linux.alibaba.com>
> ---
>   .../arch/arm64/arm/cmn700/sys/metrics.json         | 74 ++++++++++++++++++++++
>   tools/perf/pmu-events/jevents.py                   |  1 +
>   2 files changed, 75 insertions(+)
>   create mode 100644 tools/perf/pmu-events/arch/arm64/arm/cmn700/sys/metrics.json
> 
> diff --git a/tools/perf/pmu-events/arch/arm64/arm/cmn700/sys/metrics.json b/tools/perf/pmu-events/arch/arm64/arm/cmn700/sys/metrics.json
> new file mode 100644
> index 0000000..1577d86
> --- /dev/null
> +++ b/tools/perf/pmu-events/arch/arm64/arm/cmn700/sys/metrics.json

I suppose putting these here is ok. Are all these events a must for a 
CMN-700 implementation? Is there potential for impdef event in some 
implementations?

Previously we considered ARM PMCG events would be put in a per-SoC sys 
folder only (and not in perf/pmu-events/arch/arm64/arm)

> @@ -0,0 +1,74 @@
> +[
> +	{
> +		"MetricName": "slc_miss_rate",
> +		"BriefDescription": "The system level cache miss rate include.",
> +		"MetricGroup": "cmn700",
> +		"MetricExpr": "hnf_cache_miss / hnf_slc_sf_cache_access",
> +		"ScaleUnit": "100%",
> +		"Unit": "arm_cmn",
> +		"Compat": "cmn700"
> +	},
> +	{
> +		"MetricName": "hnf_message_retry_rate",
> +		"BriefDescription": "HN-F message retry rate indicates whether a lack of credits is causing the bottlenecks.",
> +		"MetricGroup": "cmn700",
> +		"MetricExpr": "hnf_pocq_retry / hnf_pocq_reqs_recvd",
> +		"ScaleUnit": "100%",
> +		"Unit": "arm_cmn",
> +		"Compat": "cmn700"
> +	},
> +	{
> +		"MetricName": "sf_hit_rate",
> +		"BriefDescription": "Snoop filter hit rate can be used to measure the Snoop Filter efficiency.",
> +		"MetricGroup": "cmn700",
> +		"MetricExpr": "hnf_sf_hit / hnf_slc_sf_cache_access",
> +		"ScaleUnit": "100%",
> +		"Unit": "arm_cmn",
> +		"Compat": "cmn700"
> +	},
> +	{
> +		"MetricName": "mc_message_retry_rate",
> +		"BriefDescription": "The memory controller request retries rate indicates whether the memory controller is the bottleneck.",
> +		"MetricGroup": "cmn700",
> +		"MetricExpr": "hnf_mc_retries / hnf_mc_reqs",
> +		"ScaleUnit": "100%",
> +		"Unit": "arm_cmn",
> +		"Compat": "cmn700"
> +	},
> +	{
> +		"MetricName": "rni_actual_read_bandwidth.all",
> +		"BriefDescription": "This event measure the actual bandwidth(MB/sec) that RN-I bridge sends to the interconnect.",
> +		"MetricGroup": "cmn700",
> +		"MetricExpr": "rnid_rxdat_flits * 32 / 1e6 / duration_time",
> +		"ScaleUnit": "1MB/s",
> +		"Unit": "arm_cmn",
> +		"Compat": "cmn700"
> +	},
> +	{
> +		"MetricName": "rni_actual_write_bandwidth.all",
> +		"BriefDescription": "This event measures the actual write bandwidth(MB/sec) at RN-I bridges.",
> +		"MetricGroup": "cmn700",
> +		"MetricExpr": "rnid_txdat_flits * 32 / 1e6 / duration_time",
> +		"ScaleUnit": "1MB/s",
> +		"Unit": "arm_cmn",
> +		"Compat": "cmn700"
> +	},
> +	{
> +		"MetricName": "rni_retry_rate",
> +		"BriefDescription": "RN-I bridge retry rate indicates whether the memory controller is the bottleneck.",
> +		"MetricGroup": "cmn700",
> +		"MetricExpr": "rnid_txreq_flits_retried / rnid_txreq_flits_total",
> +		"ScaleUnit": "100%",
> +		"Unit": "arm_cmn",
> +		"Compat": "cmn700"
> +	},
> +	{
> +		"MetricName": "sbsx_actual_write_bandwidth.all",
> +		"BriefDescription": "sbsx actual write bandwidth(MB/sec).",
> +		"MetricGroup": "cmn700",
> +		"MetricExpr": "sbsx_txdat_flitv * 32 / 1e6 / duration_time",
> +		"ScaleUnit": "1MB/s",
> +		"Unit": "arm_cmn",
> +		"Compat": "cmn700"
> +	}
> +]
> diff --git a/tools/perf/pmu-events/jevents.py b/tools/perf/pmu-events/jevents.py
> index 2bcd07c..7cff2c6 100755
> --- a/tools/perf/pmu-events/jevents.py
> +++ b/tools/perf/pmu-events/jevents.py
> @@ -256,6 +256,7 @@ class JsonEvent:
>             'DFPMC': 'amd_df',
>             'cpu_core': 'cpu_core',
>             'cpu_atom': 'cpu_atom',
> +          'arm_cmn': 'arm_cmn',
>         }
>         return table[unit] if unit in table else f'uncore_{unit.lower()}'
>
diff mbox series

Patch

diff --git a/tools/perf/pmu-events/arch/arm64/arm/cmn700/sys/metrics.json b/tools/perf/pmu-events/arch/arm64/arm/cmn700/sys/metrics.json
new file mode 100644
index 0000000..1577d86
--- /dev/null
+++ b/tools/perf/pmu-events/arch/arm64/arm/cmn700/sys/metrics.json
@@ -0,0 +1,74 @@ 
+[
+	{
+		"MetricName": "slc_miss_rate",
+		"BriefDescription": "The system level cache miss rate include.",
+		"MetricGroup": "cmn700",
+		"MetricExpr": "hnf_cache_miss / hnf_slc_sf_cache_access",
+		"ScaleUnit": "100%",
+		"Unit": "arm_cmn",
+		"Compat": "cmn700"
+	},
+	{
+		"MetricName": "hnf_message_retry_rate",
+		"BriefDescription": "HN-F message retry rate indicates whether a lack of credits is causing the bottlenecks.",
+		"MetricGroup": "cmn700",
+		"MetricExpr": "hnf_pocq_retry / hnf_pocq_reqs_recvd",
+		"ScaleUnit": "100%",
+		"Unit": "arm_cmn",
+		"Compat": "cmn700"
+	},
+	{
+		"MetricName": "sf_hit_rate",
+		"BriefDescription": "Snoop filter hit rate can be used to measure the Snoop Filter efficiency.",
+		"MetricGroup": "cmn700",
+		"MetricExpr": "hnf_sf_hit / hnf_slc_sf_cache_access",
+		"ScaleUnit": "100%",
+		"Unit": "arm_cmn",
+		"Compat": "cmn700"
+	},
+	{
+		"MetricName": "mc_message_retry_rate",
+		"BriefDescription": "The memory controller request retries rate indicates whether the memory controller is the bottleneck.",
+		"MetricGroup": "cmn700",
+		"MetricExpr": "hnf_mc_retries / hnf_mc_reqs",
+		"ScaleUnit": "100%",
+		"Unit": "arm_cmn",
+		"Compat": "cmn700"
+	},
+	{
+		"MetricName": "rni_actual_read_bandwidth.all",
+		"BriefDescription": "This event measure the actual bandwidth(MB/sec) that RN-I bridge sends to the interconnect.",
+		"MetricGroup": "cmn700",
+		"MetricExpr": "rnid_rxdat_flits * 32 / 1e6 / duration_time",
+		"ScaleUnit": "1MB/s",
+		"Unit": "arm_cmn",
+		"Compat": "cmn700"
+	},
+	{
+		"MetricName": "rni_actual_write_bandwidth.all",
+		"BriefDescription": "This event measures the actual write bandwidth(MB/sec) at RN-I bridges.",
+		"MetricGroup": "cmn700",
+		"MetricExpr": "rnid_txdat_flits * 32 / 1e6 / duration_time",
+		"ScaleUnit": "1MB/s",
+		"Unit": "arm_cmn",
+		"Compat": "cmn700"
+	},
+	{
+		"MetricName": "rni_retry_rate",
+		"BriefDescription": "RN-I bridge retry rate indicates whether the memory controller is the bottleneck.",
+		"MetricGroup": "cmn700",
+		"MetricExpr": "rnid_txreq_flits_retried / rnid_txreq_flits_total",
+		"ScaleUnit": "100%",
+		"Unit": "arm_cmn",
+		"Compat": "cmn700"
+	},
+	{
+		"MetricName": "sbsx_actual_write_bandwidth.all",
+		"BriefDescription": "sbsx actual write bandwidth(MB/sec).",
+		"MetricGroup": "cmn700",
+		"MetricExpr": "sbsx_txdat_flitv * 32 / 1e6 / duration_time",
+		"ScaleUnit": "1MB/s",
+		"Unit": "arm_cmn",
+		"Compat": "cmn700"
+	}
+]
diff --git a/tools/perf/pmu-events/jevents.py b/tools/perf/pmu-events/jevents.py
index 2bcd07c..7cff2c6 100755
--- a/tools/perf/pmu-events/jevents.py
+++ b/tools/perf/pmu-events/jevents.py
@@ -256,6 +256,7 @@  class JsonEvent:
           'DFPMC': 'amd_df',
           'cpu_core': 'cpu_core',
           'cpu_atom': 'cpu_atom',
+          'arm_cmn': 'arm_cmn',
       }
       return table[unit] if unit in table else f'uncore_{unit.lower()}'