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

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

File Facts

System: Linux kernel
Corpus path: tools/perf/pmu-events/arch/x86/nehalemex/floating-point.json
Extension: .json
Size: 7096 bytes
Lines: 230
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.

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

Dependency Surface

No C-style include directives detected by the generator.

Detected Declarations

No top-level syscall, struct, function, initcall, or export declaration detected by the generator.

Annotated Snippet

[
    {
        "BriefDescription": "X87 Floating point assists (Precise Event)",
        "Counter": "0,1,2,3",
        "EventCode": "0xF7",
        "EventName": "FP_ASSIST.ALL",
        "PEBS": "1",
        "SampleAfterValue": "20000",
        "UMask": "0x1"
    },
    {
        "BriefDescription": "X87 Floating point assists for invalid input value (Precise Event)",
        "Counter": "0,1,2,3",
        "EventCode": "0xF7",
        "EventName": "FP_ASSIST.INPUT",
        "PEBS": "1",
        "SampleAfterValue": "20000",
        "UMask": "0x4"
    },
    {
        "BriefDescription": "X87 Floating point assists for invalid output value (Precise Event)",
        "Counter": "0,1,2,3",
        "EventCode": "0xF7",
        "EventName": "FP_ASSIST.OUTPUT",
        "PEBS": "1",
        "SampleAfterValue": "20000",
        "UMask": "0x2"
    },
    {
        "BriefDescription": "MMX Uops",
        "Counter": "0,1,2,3",
        "EventCode": "0x10",
        "EventName": "FP_COMP_OPS_EXE.MMX",
        "SampleAfterValue": "2000000",
        "UMask": "0x2"
    },
    {
        "BriefDescription": "SSE2 integer Uops",
        "Counter": "0,1,2,3",
        "EventCode": "0x10",
        "EventName": "FP_COMP_OPS_EXE.SSE2_INTEGER",
        "SampleAfterValue": "2000000",
        "UMask": "0x8"
    },
    {
        "BriefDescription": "SSE* FP double precision Uops",
        "Counter": "0,1,2,3",
        "EventCode": "0x10",
        "EventName": "FP_COMP_OPS_EXE.SSE_DOUBLE_PRECISION",
        "SampleAfterValue": "2000000",
        "UMask": "0x80"
    },
    {
        "BriefDescription": "SSE and SSE2 FP Uops",
        "Counter": "0,1,2,3",
        "EventCode": "0x10",
        "EventName": "FP_COMP_OPS_EXE.SSE_FP",
        "SampleAfterValue": "2000000",
        "UMask": "0x4"
    },
    {
        "BriefDescription": "SSE FP packed Uops",
        "Counter": "0,1,2,3",
        "EventCode": "0x10",
        "EventName": "FP_COMP_OPS_EXE.SSE_FP_PACKED",
        "SampleAfterValue": "2000000",
        "UMask": "0x10"
    },
    {
        "BriefDescription": "SSE FP scalar Uops",

Annotation

Atlas domain: Support Tooling And Documentation / tools.
Implementation status: atlas-only.

Implementation Notes

This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.