tools/perf/pmu-events/arch/arm64/arm/neoverse-v3/bus.json

Source file repositories/reference/linux-study-clean/tools/perf/pmu-events/arch/arm64/arm/neoverse-v3/bus.json

File Facts

System
Linux kernel
Corpus path
tools/perf/pmu-events/arch/arm64/arm/neoverse-v3/bus.json
Extension
.json
Size
968 bytes
Lines
19
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

[
    {
        "ArchStdEvent": "BUS_ACCESS",
        "PublicDescription": "Counts memory transactions issued by the CPU to the external bus, including snoop requests and snoop responses. Each beat of data is counted individually."
    },
    {
        "ArchStdEvent": "BUS_CYCLES",
        "PublicDescription": "Counts bus cycles in the CPU. Bus cycles represent a clock cycle in which a transaction could be sent or received on the interface from the CPU to the external bus. Since that interface is driven at the same clock speed as the CPU, this event is a duplicate of CPU_CYCLES."
    },
    {
        "ArchStdEvent": "BUS_ACCESS_RD",
        "PublicDescription": "Counts memory read transactions seen on the external bus. Each beat of data is counted individually."
    },
    {
        "ArchStdEvent": "BUS_ACCESS_WR",
        "PublicDescription": "Counts memory write transactions seen on the external bus. Each beat of data is counted individually."
    }
]

Annotation

Implementation Notes