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

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

File Facts

System
Linux kernel
Corpus path
tools/perf/pmu-events/arch/x86/graniterapids/uncore-cache.json
Extension
.json
Size
150030 bytes
Lines
3746
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": "Clockticks for CMS units attached to CHA",
        "Counter": "0,1,2,3",
        "EventCode": "0x01",
        "EventName": "UNC_CHACMS_CLOCKTICKS",
        "PerPkg": "1",
        "PortMask": "0x000",
        "PublicDescription": "UNC_CHACMS_CLOCKTICKS",
        "Unit": "CHACMS"
    },
    {
        "BriefDescription": "UNC_CHACMS_DISTRESS_ASSERTED",
        "Counter": "0,1,2,3",
        "EventCode": "0x35",
        "EventName": "UNC_CHACMS_DISTRESS_ASSERTED",
        "PerPkg": "1",
        "PortMask": "0x000",
        "Unit": "CHACMS"
    },
    {
        "BriefDescription": "Counts the number of cycles FAST trigger is received from the global FAST distress wire.",
        "Counter": "0,1,2,3",
        "EventCode": "0x34",
        "EventName": "UNC_CHACMS_RING_SRC_THRTL",
        "Experimental": "1",
        "PerPkg": "1",
        "PortMask": "0x000",
        "Unit": "CHACMS"
    },
    {
        "BriefDescription": "Number of CHA clock cycles while the event is enabled",
        "Counter": "0,1,2,3",
        "EventCode": "0x01",
        "EventName": "UNC_CHA_CLOCKTICKS",
        "PerPkg": "1",
        "PublicDescription": "Clockticks of the uncore caching and home agent (CHA)",
        "Unit": "CHA"
    },
    {
        "BriefDescription": "Counts transactions that looked into the multi-socket cacheline Directory state, and therefore did not send a snoop because the Directory indicated it was not needed.",
        "Counter": "0,1,2,3",
        "EventCode": "0x53",
        "EventName": "UNC_CHA_DIR_LOOKUP.NO_SNP",
        "Experimental": "1",
        "PerPkg": "1",
        "UMask": "0x2",
        "Unit": "CHA"
    },
    {
        "BriefDescription": "Counts  transactions that looked into the multi-socket cacheline Directory state, and sent one or more snoops, because the Directory indicated it was needed.",
        "Counter": "0,1,2,3",
        "EventCode": "0x53",
        "EventName": "UNC_CHA_DIR_LOOKUP.SNP",
        "Experimental": "1",
        "PerPkg": "1",
        "UMask": "0x1",
        "Unit": "CHA"
    },
    {
        "BriefDescription": "Counts only multi-socket cacheline Directory state updates memory writes issued from the HA pipe. This does not include memory write requests which are for I (Invalid) or E (Exclusive) cachelines.",
        "Counter": "0,1,2,3",
        "EventCode": "0x54",
        "EventName": "UNC_CHA_DIR_UPDATE.HA",
        "Experimental": "1",
        "PerPkg": "1",
        "UMask": "0x1",
        "Unit": "CHA"
    },
    {

Annotation

Implementation Notes