tools/perf/pmu-events/arch/arm64/arm/neoverse-v3/l1i_cache.json

Source file repositories/reference/linux-study-clean/tools/perf/pmu-events/arch/arm64/arm/neoverse-v3/l1i_cache.json

File Facts

System
Linux kernel
Corpus path
tools/perf/pmu-events/arch/arm64/arm/neoverse-v3/l1i_cache.json
Extension
.json
Size
3744 bytes
Lines
63
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": "L1I_CACHE_REFILL",
        "PublicDescription": "Counts cache line refills in the level 1 instruction cache caused by a missed instruction fetch. Instruction fetches may include accessing multiple instructions, but the single cache line allocation is counted once."
    },
    {
        "ArchStdEvent": "L1I_CACHE",
        "PublicDescription": "Counts instruction fetches which access the level 1 instruction cache. Instruction cache accesses caused by cache maintenance operations are not counted."
    },
    {
        "ArchStdEvent": "L1I_CACHE_LMISS",
        "PublicDescription": "Counts cache line refills into the level 1 instruction cache, that incurred additional latency."
    },
    {
        "ArchStdEvent": "L1I_CACHE_RD",
        "PublicDescription": "Counts demand instruction fetches which access the level 1 instruction cache."
    },
    {
        "ArchStdEvent": "L1I_CACHE_PRFM",
        "PublicDescription": "Counts instruction fetches generated by software preload or prefetch instructions which access the level 1 instruction cache."
    },
    {
        "ArchStdEvent": "L1I_CACHE_HWPRF",
        "PublicDescription": "Counts instruction fetches which access the level 1 instruction cache generated by the hardware prefetcher."
    },
    {
        "ArchStdEvent": "L1I_CACHE_REFILL_PRFM",
        "PublicDescription": "Counts cache line refills in the level 1 instruction cache caused by a missed instruction fetch generated by software preload or prefetch instructions. Instruction fetches may include accessing multiple instructions, but the single cache line allocation is counted once."
    },
    {
        "ArchStdEvent": "L1I_CACHE_HIT_RD",
        "PublicDescription": "Counts demand instruction fetches that access the level 1 instruction cache and hit in the L1 instruction cache."
    },
    {
        "ArchStdEvent": "L1I_CACHE_HIT_RD_FPRFM",
        "PublicDescription": "Counts demand instruction fetches that access the level 1 instruction cache that hit in the L1 instruction cache and the line was requested by a software prefetch."
    },
    {
        "ArchStdEvent": "L1I_CACHE_HIT_RD_FHWPRF",
        "PublicDescription": "Counts demand instruction fetches generated by hardware prefetch that access the level 1 instruction cache and hit in the L1 instruction cache."
    },
    {
        "ArchStdEvent": "L1I_CACHE_HIT",
        "PublicDescription": "Counts instruction fetches that access the level 1 instruction cache and hit in the level 1 instruction cache. Instruction cache accesses caused by cache maintenance operations are not counted."
    },
    {
        "ArchStdEvent": "L1I_CACHE_HIT_PRFM",
        "PublicDescription": "Counts instruction fetches generated by software preload or prefetch instructions that access the level 1 instruction cache and hit in the level 1 instruction cache."
    },
    {
        "ArchStdEvent": "L1I_LFB_HIT_RD",
        "PublicDescription": "Counts demand instruction fetches that access the level 1 instruction cache and hit in a line that is in the process of being loaded into the level 1 instruction cache."
    },
    {
        "ArchStdEvent": "L1I_LFB_HIT_RD_FPRFM",
        "PublicDescription": "Counts demand instruction fetches generated by software prefetch instructions that access the level 1 instruction cache and hit in a line that is in the process of being loaded into the level 1 instruction cache."
    },
    {
        "ArchStdEvent": "L1I_LFB_HIT_RD_FHWPRF",
        "PublicDescription": "Counts demand instruction fetches generated by hardware prefetch that access the level 1 instruction cache and hit in a line that is in the process of being loaded into the level 1 instruction cache."
    }
]

Annotation

Implementation Notes