tools/perf/pmu-events/arch/x86/sandybridge/uncore-interconnect.json

Source file repositories/reference/linux-study-clean/tools/perf/pmu-events/arch/x86/sandybridge/uncore-interconnect.json

File Facts

System
Linux kernel
Corpus path
tools/perf/pmu-events/arch/x86/sandybridge/uncore-interconnect.json
Extension
.json
Size
3070 bytes
Lines
85
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": "Cycles weighted by number of requests pending in Coherency Tracker.",
        "Counter": "0",
        "EventCode": "0x83",
        "EventName": "UNC_ARB_COH_TRK_OCCUPANCY.ALL",
        "PerPkg": "1",
        "UMask": "0x1",
        "Unit": "ARB"
    },
    {
        "BriefDescription": "Number of requests allocated in Coherency Tracker.",
        "Counter": "0,1",
        "EventCode": "0x84",
        "EventName": "UNC_ARB_COH_TRK_REQUESTS.ALL",
        "PerPkg": "1",
        "UMask": "0x1",
        "Unit": "ARB"
    },
    {
        "BriefDescription": "Counts cycles weighted by the number of requests waiting for data returning from the memory controller. Accounts for coherent and non-coherent requests initiated by IA cores, processor graphic units, or LLC.",
        "Counter": "0",
        "EventCode": "0x80",
        "EventName": "UNC_ARB_TRK_OCCUPANCY.ALL",
        "PerPkg": "1",
        "UMask": "0x1",
        "Unit": "ARB"
    },
    {
        "BriefDescription": "Cycles with at least half of the requests outstanding are waiting for data return from memory controller. Account for coherent and non-coherent requests initiated by IA Cores, Processor Graphics Unit, or LLC.",
        "Counter": "0,1",
        "CounterMask": "10",
        "EventCode": "0x80",
        "EventName": "UNC_ARB_TRK_OCCUPANCY.CYCLES_OVER_HALF_FULL",
        "PerPkg": "1",
        "UMask": "0x1",
        "Unit": "ARB"
    },
    {
        "BriefDescription": "Cycles with at least one request outstanding is waiting for data return from memory controller. Account for coherent and non-coherent requests initiated by IA Cores, Processor Graphics Unit, or LLC.",
        "Counter": "0,1",
        "CounterMask": "1",
        "EventCode": "0x80",
        "EventName": "UNC_ARB_TRK_OCCUPANCY.CYCLES_WITH_ANY_REQUEST",
        "PerPkg": "1",
        "UMask": "0x1",
        "Unit": "ARB"
    },
    {
        "BriefDescription": "Counts the number of coherent and in-coherent requests initiated by IA cores, processor graphic units, or LLC.",
        "Counter": "0,1",
        "EventCode": "0x81",
        "EventName": "UNC_ARB_TRK_REQUESTS.ALL",
        "PerPkg": "1",
        "UMask": "0x1",
        "Unit": "ARB"
    },
    {
        "BriefDescription": "Counts the number of LLC evictions allocated.",
        "Counter": "0,1",
        "EventCode": "0x81",
        "EventName": "UNC_ARB_TRK_REQUESTS.EVICTIONS",
        "PerPkg": "1",
        "UMask": "0x80",
        "Unit": "ARB"
    },
    {
        "BriefDescription": "Counts the number of allocated write entries, include full, partial, and LLC evictions.",
        "Counter": "0,1",
        "EventCode": "0x81",

Annotation

Implementation Notes