tools/perf/pmu-events/arch/x86/jaketown/memory.json

Source file repositories/reference/linux-study-clean/tools/perf/pmu-events/arch/x86/jaketown/memory.json

File Facts

System
Linux kernel
Corpus path
tools/perf/pmu-events/arch/x86/jaketown/memory.json
Extension
.json
Size
13838 bytes
Lines
355
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 machine clears due to memory order conflicts.",
        "Counter": "0,1,2,3",
        "EventCode": "0xC3",
        "EventName": "MACHINE_CLEARS.MEMORY_ORDERING",
        "PublicDescription": "This event counts the number of memory ordering Machine Clears detected. Memory Ordering Machine Clears can result from memory disambiguation, external snoops, or cross SMT-HW-thread snoop (stores) hitting load buffers.  Machine clears can have a significant performance impact if they are happening frequently.",
        "SampleAfterValue": "100003",
        "UMask": "0x2"
    },
    {
        "BriefDescription": "Loads with latency value being above 128.",
        "Counter": "3",
        "EventCode": "0xCD",
        "EventName": "MEM_TRANS_RETIRED.LOAD_LATENCY_GT_128",
        "MSRIndex": "0x3F6",
        "MSRValue": "0x80",
        "PEBS": "2",
        "SampleAfterValue": "1009",
        "UMask": "0x1"
    },
    {
        "BriefDescription": "Loads with latency value being above 16.",
        "Counter": "3",
        "EventCode": "0xCD",
        "EventName": "MEM_TRANS_RETIRED.LOAD_LATENCY_GT_16",
        "MSRIndex": "0x3F6",
        "MSRValue": "0x10",
        "PEBS": "2",
        "SampleAfterValue": "20011",
        "UMask": "0x1"
    },
    {
        "BriefDescription": "Loads with latency value being above 256.",
        "Counter": "3",
        "EventCode": "0xCD",
        "EventName": "MEM_TRANS_RETIRED.LOAD_LATENCY_GT_256",
        "MSRIndex": "0x3F6",
        "MSRValue": "0x100",
        "PEBS": "2",
        "SampleAfterValue": "503",
        "UMask": "0x1"
    },
    {
        "BriefDescription": "Loads with latency value being above 32.",
        "Counter": "3",
        "EventCode": "0xCD",
        "EventName": "MEM_TRANS_RETIRED.LOAD_LATENCY_GT_32",
        "MSRIndex": "0x3F6",
        "MSRValue": "0x20",
        "PEBS": "2",
        "SampleAfterValue": "100007",
        "UMask": "0x1"
    },
    {
        "BriefDescription": "Loads with latency value being above 4 .",
        "Counter": "3",
        "EventCode": "0xCD",
        "EventName": "MEM_TRANS_RETIRED.LOAD_LATENCY_GT_4",
        "MSRIndex": "0x3F6",
        "MSRValue": "0x4",
        "PEBS": "2",
        "SampleAfterValue": "100003",
        "UMask": "0x1"
    },
    {
        "BriefDescription": "Loads with latency value being above 512.",
        "Counter": "3",
        "EventCode": "0xCD",
        "EventName": "MEM_TRANS_RETIRED.LOAD_LATENCY_GT_512",

Annotation

Implementation Notes