tools/perf/pmu-events/arch/x86/jaketown/uncore-cache.json

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

File Facts

System
Linux kernel
Corpus path
tools/perf/pmu-events/arch/x86/jaketown/uncore-cache.json
Extension
.json
Size
109363 bytes
Lines
1978
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": "Uncore Clocks",
        "Counter": "0,1,2,3",
        "EventName": "UNC_C_CLOCKTICKS",
        "PerPkg": "1",
        "Unit": "CBOX"
    },
    {
        "BriefDescription": "Counter 0 Occupancy",
        "Counter": "1,2,3",
        "EventCode": "0x1f",
        "EventName": "UNC_C_COUNTER0_OCCUPANCY",
        "PerPkg": "1",
        "PublicDescription": "Since occupancy counts can only be captured in the Cbo's 0 counter, this event allows a user to capture occupancy related information by filtering the Cb0 occupancy count captured in Counter 0.   The filtering available is found in the control register - threshold, invert and edge detect.   E.g. setting threshold to 1 can effectively monitor how many cycles the monitored queue has an entry.",
        "Unit": "CBOX"
    },
    {
        "Counter": "0,1",
        "EventCode": "0x21",
        "EventName": "UNC_C_ISMQ_DRD_MISS_OCC",
        "PerPkg": "1",
        "Unit": "CBOX"
    },
    {
        "BriefDescription": "Cache Lookups; Data Read Request",
        "Counter": "0,1",
        "EventCode": "0x34",
        "EventName": "UNC_C_LLC_LOOKUP.DATA_READ",
        "PerPkg": "1",
        "PublicDescription": "Counts the number of times the LLC was accessed - this includes code, data, prefetches and hints coming from L2.  This has numerous filters available.  Note the non-standard filtering equation.  This event will count requests that lookup the cache multiple times with multiple increments.  One must ALWAYS set filter mask bit 0 and select a state or states to match.  Otherwise, the event will count nothing.   CBoGlCtrl[22:18] bits correspond to [FMESI] state.",
        "UMask": "0x3",
        "Unit": "CBOX"
    },
    {
        "BriefDescription": "Cache Lookups; RTID",
        "Counter": "0,1",
        "EventCode": "0x34",
        "EventName": "UNC_C_LLC_LOOKUP.NID",
        "PerPkg": "1",
        "PublicDescription": "Counts the number of times the LLC was accessed - this includes code, data, prefetches and hints coming from L2.  This has numerous filters available.  Note the non-standard filtering equation.  This event will count requests that lookup the cache multiple times with multiple increments.  One must ALWAYS set filter mask bit 0 and select a state or states to match.  Otherwise, the event will count nothing.   CBoGlCtrl[22:18] bits correspond to [FMESI] state.",
        "UMask": "0x41",
        "Unit": "CBOX"
    },
    {
        "BriefDescription": "Cache Lookups; External Snoop Request",
        "Counter": "0,1",
        "EventCode": "0x34",
        "EventName": "UNC_C_LLC_LOOKUP.REMOTE_SNOOP",
        "PerPkg": "1",
        "PublicDescription": "Counts the number of times the LLC was accessed - this includes code, data, prefetches and hints coming from L2.  This has numerous filters available.  Note the non-standard filtering equation.  This event will count requests that lookup the cache multiple times with multiple increments.  One must ALWAYS set filter mask bit 0 and select a state or states to match.  Otherwise, the event will count nothing.   CBoGlCtrl[22:18] bits correspond to [FMESI] state.",
        "UMask": "0x9",
        "Unit": "CBOX"
    },
    {
        "BriefDescription": "Cache Lookups; Write Requests",
        "Counter": "0,1",
        "EventCode": "0x34",
        "EventName": "UNC_C_LLC_LOOKUP.WRITE",
        "PerPkg": "1",
        "PublicDescription": "Counts the number of times the LLC was accessed - this includes code, data, prefetches and hints coming from L2.  This has numerous filters available.  Note the non-standard filtering equation.  This event will count requests that lookup the cache multiple times with multiple increments.  One must ALWAYS set filter mask bit 0 and select a state or states to match.  Otherwise, the event will count nothing.   CBoGlCtrl[22:18] bits correspond to [FMESI] state.",
        "UMask": "0x5",
        "Unit": "CBOX"
    },
    {
        "BriefDescription": "Lines Victimized; Lines in E state",
        "Counter": "0,1",
        "EventCode": "0x37",
        "EventName": "UNC_C_LLC_VICTIMS.E_STATE",
        "PerPkg": "1",

Annotation

Implementation Notes