tools/perf/pmu-events/arch/x86/skylakex/uncore-power.json

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

File Facts

System
Linux kernel
Corpus path
tools/perf/pmu-events/arch/x86/skylakex/uncore-power.json
Extension
.json
Size
10985 bytes
Lines
250
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": "pclk Cycles",
        "Counter": "0,1,2,3",
        "EventName": "UNC_P_CLOCKTICKS",
        "Experimental": "1",
        "PerPkg": "1",
        "PublicDescription": "The PCU runs off a fixed 1 GHz clock.  This event counts the number of pclk cycles measured while the counter was enabled.  The pclk, like the Memory Controller's dclk, counts at a constant rate making it a good measure of actual wall time.",
        "Unit": "PCU"
    },
    {
        "BriefDescription": "UNC_P_CORE_TRANSITION_CYCLES",
        "Counter": "0,1,2,3",
        "EventCode": "0x60",
        "EventName": "UNC_P_CORE_TRANSITION_CYCLES",
        "Experimental": "1",
        "PerPkg": "1",
        "Unit": "PCU"
    },
    {
        "BriefDescription": "UNC_P_DEMOTIONS",
        "Counter": "0,1,2,3",
        "EventCode": "0x30",
        "EventName": "UNC_P_DEMOTIONS",
        "Experimental": "1",
        "PerPkg": "1",
        "Unit": "PCU"
    },
    {
        "BriefDescription": "Phase Shed 0 Cycles",
        "Counter": "0,1,2,3",
        "EventCode": "0x75",
        "EventName": "UNC_P_FIVR_PS_PS0_CYCLES",
        "Experimental": "1",
        "PerPkg": "1",
        "PublicDescription": "Cycles spent in phase-shedding power state 0",
        "Unit": "PCU"
    },
    {
        "BriefDescription": "Phase Shed 1 Cycles",
        "Counter": "0,1,2,3",
        "EventCode": "0x76",
        "EventName": "UNC_P_FIVR_PS_PS1_CYCLES",
        "Experimental": "1",
        "PerPkg": "1",
        "PublicDescription": "Cycles spent in phase-shedding power state 1",
        "Unit": "PCU"
    },
    {
        "BriefDescription": "Phase Shed 2 Cycles",
        "Counter": "0,1,2,3",
        "EventCode": "0x77",
        "EventName": "UNC_P_FIVR_PS_PS2_CYCLES",
        "Experimental": "1",
        "PerPkg": "1",
        "PublicDescription": "Cycles spent in phase-shedding power state 2",
        "Unit": "PCU"
    },
    {
        "BriefDescription": "Phase Shed 3 Cycles",
        "Counter": "0,1,2,3",
        "EventCode": "0x78",
        "EventName": "UNC_P_FIVR_PS_PS3_CYCLES",
        "Experimental": "1",
        "PerPkg": "1",
        "PublicDescription": "Cycles spent in phase-shedding power state 3",
        "Unit": "PCU"
    },
    {
        "BriefDescription": "Thermal Strongest Upper Limit Cycles",

Annotation

Implementation Notes