tools/perf/pmu-events/arch/x86/lunarlake/floating-point.json

Source file repositories/reference/linux-study-clean/tools/perf/pmu-events/arch/x86/lunarlake/floating-point.json

File Facts

System
Linux kernel
Corpus path
tools/perf/pmu-events/arch/x86/lunarlake/floating-point.json
Extension
.json
Size
25637 bytes
Lines
485
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": "Counts the number of cycles when any of the floating point dividers are active.",
        "Counter": "0,1,2,3,4,5,6,7",
        "CounterMask": "1",
        "EventCode": "0xcd",
        "EventName": "ARITH.FPDIV_ACTIVE",
        "SampleAfterValue": "1000003",
        "UMask": "0x2",
        "Unit": "cpu_atom"
    },
    {
        "BriefDescription": "Cycles when floating-point divide unit is busy executing divide or square root operations.",
        "Counter": "0,1,2,3,4,5,6,7,8,9",
        "CounterMask": "1",
        "EventCode": "0xb0",
        "EventName": "ARITH.FPDIV_ACTIVE",
        "PublicDescription": "Counts cycles when divide unit is busy executing divide or square root operations. Accounts for floating-point operations only.",
        "SampleAfterValue": "1000003",
        "UMask": "0x1",
        "Unit": "cpu_core"
    },
    {
        "BriefDescription": "Counts the number of active floating point dividers per cycle in the loop stage.",
        "Counter": "0,1,2,3,4,5,6,7",
        "EventCode": "0xcd",
        "EventName": "ARITH.FPDIV_OCCUPANCY",
        "SampleAfterValue": "1000003",
        "UMask": "0x2",
        "Unit": "cpu_atom"
    },
    {
        "BriefDescription": "Counts the number of floating point divider uops executed per cycle.",
        "Counter": "0,1,2,3,4,5,6,7",
        "EventCode": "0xcd",
        "EventName": "ARITH.FPDIV_UOPS",
        "SampleAfterValue": "1000003",
        "UMask": "0x8",
        "Unit": "cpu_atom"
    },
    {
        "BriefDescription": "Counts all microcode FP assists.",
        "Counter": "0,1,2,3,4,5,6,7,8,9",
        "EventCode": "0xc1",
        "EventName": "ASSISTS.FP",
        "PublicDescription": "Counts all microcode Floating Point assists.",
        "SampleAfterValue": "100003",
        "UMask": "0x2",
        "Unit": "cpu_core"
    },
    {
        "BriefDescription": "ASSISTS.SSE_AVX_MIX",
        "Counter": "0,1,2,3,4,5,6,7,8,9",
        "EventCode": "0xc1",
        "EventName": "ASSISTS.SSE_AVX_MIX",
        "SampleAfterValue": "1000003",
        "UMask": "0x10",
        "Unit": "cpu_core"
    },
    {
        "BriefDescription": "Number of FP-arith-uops dispatched on 1st VEC port (port 0). FP-arith-uops are of type ADD* / SUB* / MUL / FMA* / DPP.",
        "Counter": "0,1,2,3,4,5,6,7,8,9",
        "EventCode": "0xb3",
        "EventName": "FP_ARITH_DISPATCHED.V0",
        "SampleAfterValue": "2000003",
        "UMask": "0x1",
        "Unit": "cpu_core"
    },
    {
        "BriefDescription": "Number of FP-arith-uops dispatched on 2nd VEC port (port 1)",

Annotation

Implementation Notes