tools/perf/pmu-events/arch/x86/ivytown/virtual-memory.json
Source file repositories/reference/linux-study-clean/tools/perf/pmu-events/arch/x86/ivytown/virtual-memory.json
File Facts
- System
- Linux kernel
- Corpus path
tools/perf/pmu-events/arch/x86/ivytown/virtual-memory.json- Extension
.json- Size
- 7390 bytes
- Lines
- 179
- 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": "Demand load Miss in all translation lookaside buffer (TLB) levels causes a page walk that completes of any page size.",
"Counter": "0,1,2,3",
"EventCode": "0x08",
"EventName": "DTLB_LOAD_MISSES.DEMAND_LD_WALK_COMPLETED",
"SampleAfterValue": "100003",
"UMask": "0x82"
},
{
"BriefDescription": "Demand load cycles page miss handler (PMH) is busy with this walk.",
"Counter": "0,1,2,3",
"EventCode": "0x08",
"EventName": "DTLB_LOAD_MISSES.DEMAND_LD_WALK_DURATION",
"SampleAfterValue": "2000003",
"UMask": "0x84"
},
{
"BriefDescription": "Page walk for a large page completed for Demand load.",
"Counter": "0,1,2,3",
"EventCode": "0x08",
"EventName": "DTLB_LOAD_MISSES.LARGE_PAGE_WALK_COMPLETED",
"SampleAfterValue": "100003",
"UMask": "0x88"
},
{
"BriefDescription": "Demand load Miss in all translation lookaside buffer (TLB) levels causes an page walk of any page size.",
"Counter": "0,1,2,3",
"EventCode": "0x08",
"EventName": "DTLB_LOAD_MISSES.MISS_CAUSES_A_WALK",
"PublicDescription": "Misses in all TLB levels that cause a page walk of any page size from demand loads.",
"SampleAfterValue": "100003",
"UMask": "0x81"
},
{
"BriefDescription": "Load operations that miss the first DTLB level but hit the second and do not cause page walks",
"Counter": "0,1,2,3",
"EventCode": "0x5F",
"EventName": "DTLB_LOAD_MISSES.STLB_HIT",
"PublicDescription": "Counts load operations that missed 1st level DTLB but hit the 2nd level.",
"SampleAfterValue": "100003",
"UMask": "0x4"
},
{
"BriefDescription": "Demand load Miss in all translation lookaside buffer (TLB) levels causes a page walk that completes of any page size.",
"Counter": "0,1,2,3",
"EventCode": "0x08",
"EventName": "DTLB_LOAD_MISSES.WALK_COMPLETED",
"PublicDescription": "Misses in all TLB levels that caused page walk completed of any size by demand loads.",
"SampleAfterValue": "100003",
"UMask": "0x82"
},
{
"BriefDescription": "Demand load cycles page miss handler (PMH) is busy with this walk.",
"Counter": "0,1,2,3",
"EventCode": "0x08",
"EventName": "DTLB_LOAD_MISSES.WALK_DURATION",
"PublicDescription": "Cycle PMH is busy with a walk due to demand loads.",
"SampleAfterValue": "2000003",
"UMask": "0x84"
},
{
"BriefDescription": "Store misses in all DTLB levels that cause page walks",
"Counter": "0,1,2,3",
"EventCode": "0x49",
"EventName": "DTLB_STORE_MISSES.MISS_CAUSES_A_WALK",
"PublicDescription": "Miss in all TLB levels causes a page walk of any page size (4K/2M/4M/1G).",
"SampleAfterValue": "100003",
"UMask": "0x1"
},
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.