tools/perf/pmu-events/arch/x86/sierraforest/frontend.json

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

File Facts

System
Linux kernel
Corpus path
tools/perf/pmu-events/arch/x86/sierraforest/frontend.json
Extension
.json
Size
5026 bytes
Lines
108
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 total number of BACLEARS due to all branch types including conditional and unconditional jumps, returns, and indirect branches.",
        "Counter": "0,1,2,3,4,5,6,7",
        "EventCode": "0xe6",
        "EventName": "BACLEARS.ANY",
        "PublicDescription": "Counts the total number of BACLEARS, which occur when the Branch Target Buffer (BTB) prediction or lack thereof, was corrected by a later branch predictor in the frontend.  Includes BACLEARS due to all branch types including conditional and unconditional jumps, returns, and indirect branches.",
        "SampleAfterValue": "200003",
        "UMask": "0x1"
    },
    {
        "BriefDescription": "Counts the number of instructions retired that were tagged with having preceded with frontend bound behavior",
        "Counter": "0,1,2,3,4,5,6,7",
        "EventCode": "0xc6",
        "EventName": "FRONTEND_RETIRED.ALL",
        "SampleAfterValue": "1000003"
    },
    {
        "BriefDescription": "Counts the number of instruction retired that are tagged after a branch instruction causes bubbles/empty issue slots due to a baclear",
        "Counter": "0,1,2,3,4,5,6,7",
        "EventCode": "0xc6",
        "EventName": "FRONTEND_RETIRED.BRANCH_DETECT",
        "SampleAfterValue": "1000003",
        "UMask": "0x2"
    },
    {
        "BriefDescription": "Counts the number of instruction retired that are tagged after a branch instruction causes bubbles /empty issue slots due to a btclear",
        "Counter": "0,1,2,3,4,5,6,7",
        "EventCode": "0xc6",
        "EventName": "FRONTEND_RETIRED.BRANCH_RESTEER",
        "SampleAfterValue": "1000003",
        "UMask": "0x40"
    },
    {
        "BriefDescription": "Counts the number of instructions retired that were tagged following an ms flow due to the bubble/wasted issue slot from exiting long ms flow",
        "Counter": "0,1,2,3,4,5,6,7",
        "EventCode": "0xc6",
        "EventName": "FRONTEND_RETIRED.CISC",
        "PublicDescription": "Counts the number of  instructions retired that were tagged following an ms flow due to the bubble/wasted issue slot from exiting long ms flow",
        "SampleAfterValue": "1000003",
        "UMask": "0x1"
    },
    {
        "BriefDescription": "Counts the number of instructions retired that were tagged every cycle the decoder is unable to send 3 uops per cycle.",
        "Counter": "0,1,2,3,4,5,6,7",
        "EventCode": "0xc6",
        "EventName": "FRONTEND_RETIRED.DECODE",
        "SampleAfterValue": "1000003",
        "UMask": "0x8"
    },
    {
        "BriefDescription": "Counts the number of instructions retired that were tagged because empty issue slots were seen before the uop due to icache miss",
        "Counter": "0,1,2,3,4,5,6,7",
        "EventCode": "0xc6",
        "EventName": "FRONTEND_RETIRED.ICACHE",
        "SampleAfterValue": "1000003",
        "UMask": "0x20"
    },
    {
        "BriefDescription": "Counts the number of instructions retired that were tagged because empty issue slots were seen before the uop due to ITLB miss",
        "Counter": "0,1,2,3,4,5,6,7",
        "EventCode": "0xc6",
        "EventName": "FRONTEND_RETIRED.ITLB_MISS",
        "SampleAfterValue": "1000003",
        "UMask": "0x10"
    },
    {
        "BriefDescription": "Counts the number of instruction retired tagged after a wasted issue slot if none of the previous events occurred",
        "Counter": "0,1,2,3,4,5,6,7",
        "EventCode": "0xc6",

Annotation

Implementation Notes