tools/perf/pmu-events/arch/arm64/freescale/imx91/sys/metrics.json

Source file repositories/reference/linux-study-clean/tools/perf/pmu-events/arch/arm64/freescale/imx91/sys/metrics.json

File Facts

System
Linux kernel
Corpus path
tools/perf/pmu-events/arch/arm64/freescale/imx91/sys/metrics.json
Extension
.json
Size
1159 bytes
Lines
27
Domain
Support Tooling And Documentation
Bucket
tools
Inferred role
Support Tooling And Documentation: configuration, schema, or hardware description
Status
atlas-only

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

Dependency Surface

Detected Declarations

Annotated Snippet

[
   {
	    "BriefDescription": "bandwidth usage for lpddr4 evk board",
	    "MetricName": "imx91_bandwidth_usage.lpddr4",
	    "MetricExpr": "(((( imx9_ddr0@ddrc_pm_0@ ) * 2 * 8 ) + (( imx9_ddr0@ddrc_pm_3@ + imx9_ddr0@ddrc_pm_5@ + imx9_ddr0@ddrc_pm_7@ + imx9_ddr0@ddrc_pm_9@ - imx9_ddr0@ddrc_pm_2@ - imx9_ddr0@ddrc_pm_4@ - imx9_ddr0@ddrc_pm_6@ - imx9_ddr0@ddrc_pm_8@ ) * 32 )) / duration_time) / (2400 * 1000000 * 2)",
	    "ScaleUnit": "1e2%",
	    "Unit": "imx9_ddr",
	    "Compat": "imx91"
   },
   {
	    "BriefDescription": "bytes all masters read from ddr",
	    "MetricName": "imx91_ddr_read.all",
	    "MetricExpr": "( imx9_ddr0@ddrc_pm_0@ ) * 2 * 8",
	    "ScaleUnit": "9.765625e-4KB",
	    "Unit": "imx9_ddr",
	    "Compat": "imx91"
   },
   {
	    "BriefDescription": "bytes all masters write to ddr",
	    "MetricName": "imx91_ddr_write.all",
	    "MetricExpr": "( imx9_ddr0@ddrc_pm_3@ + imx9_ddr0@ddrc_pm_5@ + imx9_ddr0@ddrc_pm_7@ + imx9_ddr0@ddrc_pm_9@ - imx9_ddr0@ddrc_pm_2@ - imx9_ddr0@ddrc_pm_4@ - imx9_ddr0@ddrc_pm_6@ - imx9_ddr0@ddrc_pm_8@ ) * 32",
	    "ScaleUnit": "9.765625e-4KB",
	    "Unit": "imx9_ddr",
	    "Compat": "imx91"
   }
]

Annotation

Implementation Notes