tools/perf/pmu-events/arch/arm64/arm/cmn/sys/cmn.json
Source file repositories/reference/linux-study-clean/tools/perf/pmu-events/arch/arm64/arm/cmn/sys/cmn.json
File Facts
- System
- Linux kernel
- Corpus path
tools/perf/pmu-events/arch/arm64/arm/cmn/sys/cmn.json- Extension
.json- Size
- 8061 bytes
- Lines
- 267
- 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
[
{
"EventName": "hnf_cache_miss",
"EventidCode": "0x1",
"NodeType": "0x5",
"BriefDescription": "Counts total cache misses in first lookup result (high priority).",
"Unit": "arm_cmn",
"Compat": "(434|436|43c|43a).*"
},
{
"EventName": "hnf_slc_sf_cache_access",
"EventidCode": "0x2",
"NodeType": "0x5",
"BriefDescription": "Counts number of cache accesses in first access (high priority).",
"Unit": "arm_cmn",
"Compat": "(434|436|43c|43a).*"
},
{
"EventName": "hnf_cache_fill",
"EventidCode": "0x3",
"NodeType": "0x5",
"BriefDescription": "Counts total allocations in HN SLC (all cache line allocations to SLC).",
"Unit": "arm_cmn",
"Compat": "(434|436|43c|43a).*"
},
{
"EventName": "hnf_pocq_retry",
"EventidCode": "0x4",
"NodeType": "0x5",
"BriefDescription": "Counts number of retried requests.",
"Unit": "arm_cmn",
"Compat": "(434|436|43c|43a).*"
},
{
"EventName": "hnf_pocq_reqs_recvd",
"EventidCode": "0x5",
"NodeType": "0x5",
"BriefDescription": "Counts number of requests that HN receives.",
"Unit": "arm_cmn",
"Compat": "(434|436|43c|43a).*"
},
{
"EventName": "hnf_sf_hit",
"EventidCode": "0x6",
"NodeType": "0x5",
"BriefDescription": "Counts number of SF hits.",
"Unit": "arm_cmn",
"Compat": "(434|436|43c|43a).*"
},
{
"EventName": "hnf_sf_evictions",
"EventidCode": "0x7",
"NodeType": "0x5",
"BriefDescription": "Counts number of SF eviction cache invalidations initiated.",
"Unit": "arm_cmn",
"Compat": "(434|436|43c|43a).*"
},
{
"EventName": "hnf_dir_snoops_sent",
"EventidCode": "0x8",
"NodeType": "0x5",
"BriefDescription": "Counts number of directed snoops sent (not including SF back invalidation).",
"Unit": "arm_cmn",
"Compat": "(434|436|43c|43a).*"
},
{
"EventName": "hnf_brd_snoops_sent",
"EventidCode": "0x9",
"NodeType": "0x5",
"BriefDescription": "Counts number of multicast snoops sent (not including SF back invalidation).",
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.