tools/perf/pmu-events/arch/powerpc/power9/nest_metrics.json
Source file repositories/reference/linux-study-clean/tools/perf/pmu-events/arch/powerpc/power9/nest_metrics.json
File Facts
- System
- Linux kernel
- Corpus path
tools/perf/pmu-events/arch/powerpc/power9/nest_metrics.json- Extension
.json- Size
- 2544 bytes
- Lines
- 64
- 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
[
{
"MetricExpr": "(hv_24x7@PM_MCS01_128B_RD_DISP_PORT01\\,chip\\=?@ + hv_24x7@PM_MCS01_128B_RD_DISP_PORT23\\,chip\\=?@ + hv_24x7@PM_MCS23_128B_RD_DISP_PORT01\\,chip\\=?@ + hv_24x7@PM_MCS23_128B_RD_DISP_PORT23\\,chip\\=?@)",
"MetricName": "Memory_RD_BW_Chip",
"MetricGroup": "Memory_BW",
"ScaleUnit": "1.6e-2MB",
"AggregationMode": "PerChip"
},
{
"MetricExpr": "(hv_24x7@PM_MCS01_128B_WR_DISP_PORT01\\,chip\\=?@ + hv_24x7@PM_MCS01_128B_WR_DISP_PORT23\\,chip\\=?@ + hv_24x7@PM_MCS23_128B_WR_DISP_PORT01\\,chip\\=?@ + hv_24x7@PM_MCS23_128B_WR_DISP_PORT23\\,chip\\=?@ )",
"MetricName": "Memory_WR_BW_Chip",
"MetricGroup": "Memory_BW",
"ScaleUnit": "1.6e-2MB",
"AggregationMode": "PerChip"
},
{
"MetricExpr": "(hv_24x7@PM_PB_CYC\\,chip\\=?@ )",
"MetricName": "PowerBUS_Frequency",
"ScaleUnit": "2.5e-7GHz",
"AggregationMode": "PerChip"
},
{
"MetricExpr": "(hv_24x7@CPM_CS_32MHZ_CYC\\,domain\\=3\\,core\\=?@ )",
"MetricName": "CPM_CS_32MHZ_CYC",
"ScaleUnit": "1MHz",
"AggregationMode": "PerCore"
},
{
"MetricExpr" : "nest_mcs01_imc@PM_MCS01_128B_RD_DISP_PORT01@ + nest_mcs01_imc@PM_MCS01_128B_RD_DISP_PORT23@",
"MetricName" : "mcs01-read",
"MetricGroup" : "memory-bandwidth",
"ScaleUnit": "6.1e-5MiB"
},
{
"MetricExpr" : "nest_mcs23_imc@PM_MCS23_128B_RD_DISP_PORT01@ + nest_mcs23_imc@PM_MCS23_128B_RD_DISP_PORT23@",
"MetricName" : "mcs23-read",
"MetricGroup" : "memory-bandwidth",
"ScaleUnit": "6.1e-5MiB"
},
{
"MetricExpr" : "nest_mcs01_imc@PM_MCS01_128B_WR_DISP_PORT01@ + nest_mcs01_imc@PM_MCS01_128B_WR_DISP_PORT23@",
"MetricName" : "mcs01-write",
"MetricGroup" : "memory-bandwidth",
"ScaleUnit": "6.1e-5MiB"
},
{
"MetricExpr" : "nest_mcs23_imc@PM_MCS23_128B_WR_DISP_PORT01@ + nest_mcs23_imc@PM_MCS23_128B_WR_DISP_PORT23@",
"MetricName" : "mcs23-write",
"MetricGroup" : "memory-bandwidth",
"ScaleUnit": "6.1e-5MiB"
},
{
"MetricExpr" : "nest_powerbus0_imc@PM_PB_CYC@",
"MetricName" : "powerbus_freq",
"ScaleUnit": "1e-9GHz"
},
{
"MetricExpr" : "(nest_mcs01_imc@PM_MCS01_128B_RD_DISP_PORT01@ + nest_mcs01_imc@PM_MCS01_128B_RD_DISP_PORT23@ + nest_mcs23_imc@PM_MCS23_128B_RD_DISP_PORT01@ + nest_mcs23_imc@PM_MCS23_128B_RD_DISP_PORT23@ + nest_mcs01_imc@PM_MCS01_128B_WR_DISP_PORT01@ + nest_mcs01_imc@PM_MCS01_128B_WR_DISP_PORT23@ + nest_mcs23_imc@PM_MCS23_128B_WR_DISP_PORT01@ + nest_mcs23_imc@PM_MCS23_128B_WR_DISP_PORT23@)",
"MetricName" : "Memory-bandwidth-MCS",
"MetricGroup" : "memory-bandwidth",
"ScaleUnit": "6.1e-5MB"
}
]
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.