> This page is for NeMo Relay, version dev. > For other versions, use one of these documentation indexes: > - Latest (v0.10.4) (default): https://docs.nvidia.com/nemo/relay/latest/llms.txt > - dev: https://docs.nvidia.com/nemo/relay/dev/llms.txt > - v0.11.0: https://docs.nvidia.com/nemo/relay/v0.11.0/llms.txt > - v0.10.4: https://docs.nvidia.com/nemo/relay/v0.10.4/llms.txt > - v0.9.4: https://docs.nvidia.com/nemo/relay/v0.9.4/llms.txt > - v0.8.4: https://docs.nvidia.com/nemo/relay/v0.8.4/llms.txt > - v0.7.3: https://docs.nvidia.com/nemo/relay/v0.7.3/llms.txt > For clean Markdown of any page, append .md to the page URL. > For a complete documentation index, see https://docs.nvidia.com/nemo/relay/llms.txt. > For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.nvidia.com/nemo/relay/_mcp/server. # Module resource_metrics > System resource metric acquisition and polling APIs. Fresh and managed system resource metric observation. Generated from `cargo doc --no-deps -p nemo-relay -p nemo-relay-adaptive -p nemo-relay-pii-redaction -p nemo-relay-ffi -p nemo-relay-types -p nemo-relay-plugin -p nemo-relay-worker-proto -p nemo-relay-worker`. System resource metric acquisition and polling APIs. Fresh and managed system resource metric observation. ## Structs * [AcceleratorDeviceMetrics](/nemo/relay/dev/reference/api/rust-library-reference/nemo-relay/api/resource_metrics/struct-acceleratordevicemetrics): Device-wide accelerator measurements. * [AcceleratorProcessMetrics](/nemo/relay/dev/reference/api/rust-library-reference/nemo-relay/api/resource_metrics/struct-acceleratorprocessmetrics): Accelerator measurements attributed to one process in the selected scope. * [CpuMetrics](/nemo/relay/dev/reference/api/rust-library-reference/nemo-relay/api/resource_metrics/struct-cpumetrics): CPU measurements and CPU limit events. * [DiskMetrics](/nemo/relay/dev/reference/api/rust-library-reference/nemo-relay/api/resource_metrics/struct-diskmetrics): Disk I/O for the measured process scope and filesystem capacity. * [FilesystemCapacityMetrics](/nemo/relay/dev/reference/api/rust-library-reference/nemo-relay/api/resource_metrics/struct-filesystemcapacitymetrics): Filesystem capacity for one configured path. * [GpuMetrics](/nemo/relay/dev/reference/api/rust-library-reference/nemo-relay/api/resource_metrics/struct-gpumetrics): Accelerator (GPU) device-wide and process-attributed measurements. * [MemoryMetrics](/nemo/relay/dev/reference/api/rust-library-reference/nemo-relay/api/resource_metrics/struct-memorymetrics): Memory measurements and memory limit events. * [NetworkInterfaceMetrics](/nemo/relay/dev/reference/api/rust-library-reference/nemo-relay/api/resource_metrics/struct-networkinterfacemetrics): Network traffic for one visible interface. * [NetworkMetrics](/nemo/relay/dev/reference/api/rust-library-reference/nemo-relay/api/resource_metrics/struct-networkmetrics): System-wide network traffic, regardless of the process measurement scope. * [NetworkTrafficMetrics](/nemo/relay/dev/reference/api/rust-library-reference/nemo-relay/api/resource_metrics/struct-networktrafficmetrics): Network counters for one interface or the selected system aggregate. * [ProcessMetrics](/nemo/relay/dev/reference/api/rust-library-reference/nemo-relay/api/resource_metrics/struct-processmetrics): Process counts, process limits, handles, and descriptors. * [ProcessSamplingMetadata](/nemo/relay/dev/reference/api/rust-library-reference/nemo-relay/api/resource_metrics/struct-processsamplingmetadata): Coverage of process queries used for process-summed measurements. * [ResourceLimitEventCount](/nemo/relay/dev/reference/api/rust-library-reference/nemo-relay/api/resource_metrics/struct-resourcelimiteventcount): One typed cumulative resource-limit event counter. * [ResourceMeasurement](/nemo/relay/dev/reference/api/rust-library-reference/nemo-relay/api/resource_metrics/struct-resourcemeasurement): One available resource measurement. * [ResourceMetricsConfig](/nemo/relay/dev/reference/api/rust-library-reference/nemo-relay/api/resource_metrics/struct-resourcemetricsconfig): Configuration for the built-in `resource_metrics` plugin component. * [ResourceMetricsCpuConfig](/nemo/relay/dev/reference/api/rust-library-reference/nemo-relay/api/resource_metrics/struct-resourcemetricscpuconfig): CPU observations, limits, and pressure. * [ResourceMetricsCpuUnits](/nemo/relay/dev/reference/api/rust-library-reference/nemo-relay/api/resource_metrics/struct-resourcemetricscpuunits): CPU measurement unit choices. * [ResourceMetricsDiskConfig](/nemo/relay/dev/reference/api/rust-library-reference/nemo-relay/api/resource_metrics/struct-resourcemetricsdiskconfig): Disk I/O for the selected process scope and filesystem capacity. * [ResourceMetricsDiskUnits](/nemo/relay/dev/reference/api/rust-library-reference/nemo-relay/api/resource_metrics/struct-resourcemetricsdiskunits): Disk measurement unit choices. * [ResourceMetricsGpuConfig](/nemo/relay/dev/reference/api/rust-library-reference/nemo-relay/api/resource_metrics/struct-resourcemetricsgpuconfig): Accelerator observations. * [ResourceMetricsGpuUnits](/nemo/relay/dev/reference/api/rust-library-reference/nemo-relay/api/resource_metrics/struct-resourcemetricsgpuunits): GPU measurement unit choices. * [ResourceMetricsMemoryConfig](/nemo/relay/dev/reference/api/rust-library-reference/nemo-relay/api/resource_metrics/struct-resourcemetricsmemoryconfig): Memory observations, limits, pressure, and OOM events. * [ResourceMetricsMemoryUnits](/nemo/relay/dev/reference/api/rust-library-reference/nemo-relay/api/resource_metrics/struct-resourcemetricsmemoryunits): Memory measurement unit choices. * [ResourceMetricsNetworkConfig](/nemo/relay/dev/reference/api/rust-library-reference/nemo-relay/api/resource_metrics/struct-resourcemetricsnetworkconfig): System interface counters. Empty `interfaces` selects every visible interface. * [ResourceMetricsNetworkTrafficUnits](/nemo/relay/dev/reference/api/rust-library-reference/nemo-relay/api/resource_metrics/struct-resourcemetricsnetworktrafficunits): Unit choices for one group of network traffic. * [ResourceMetricsNetworkUnits](/nemo/relay/dev/reference/api/rust-library-reference/nemo-relay/api/resource_metrics/struct-resourcemetricsnetworkunits): Unit choices for system and interface traffic. * [ResourceMetricsPollingConfig](/nemo/relay/dev/reference/api/rust-library-reference/nemo-relay/api/resource_metrics/struct-resourcemetricspollingconfig): Periodic collection controlled by the `resource_metrics` plugin component. * [ResourceMetricsProcessConfig](/nemo/relay/dev/reference/api/rust-library-reference/nemo-relay/api/resource_metrics/struct-resourcemetricsprocessconfig): Process, thread, handle, descriptor, and process-limit observations. * [ResourceMetricsSnapshot](/nemo/relay/dev/reference/api/rust-library-reference/nemo-relay/api/resource_metrics/struct-resourcemetricssnapshot): One point-in-time observation of the selected system and process resources. * [ResourceMetricsUnits](/nemo/relay/dev/reference/api/rust-library-reference/nemo-relay/api/resource_metrics/struct-resourcemetricsunits): Output unit choices for resource metrics. ## Enums * [AcceleratorVendor](/nemo/relay/dev/reference/api/rust-library-reference/nemo-relay/api/resource_metrics/enum-acceleratorvendor): Accelerator vendor associated with a metric record. * [BandwidthUnit](/nemo/relay/dev/reference/api/rust-library-reference/nemo-relay/api/resource_metrics/enum-bandwidthunit): Units for data transferred per second. * [CapacityUnit](/nemo/relay/dev/reference/api/rust-library-reference/nemo-relay/api/resource_metrics/enum-capacityunit): Units for memory and filesystem capacity. * [CountUnit](/nemo/relay/dev/reference/api/rust-library-reference/nemo-relay/api/resource_metrics/enum-countunit): Fixed units for process, resource, and operation counts. * [CpuUnit](/nemo/relay/dev/reference/api/rust-library-reference/nemo-relay/api/resource_metrics/enum-cpuunit): Units for CPU consumption and effective capacity. * [DataUnit](/nemo/relay/dev/reference/api/rust-library-reference/nemo-relay/api/resource_metrics/enum-dataunit): Units for cumulative transferred data. * [DurationUnit](/nemo/relay/dev/reference/api/rust-library-reference/nemo-relay/api/resource_metrics/enum-durationunit): Units for elapsed and cumulative durations. * [ResourceLimitEventKind](/nemo/relay/dev/reference/api/rust-library-reference/nemo-relay/api/resource_metrics/enum-resourcelimiteventkind): Direct operating-system resource-limit event kind. * [ResourceLimitResource](/nemo/relay/dev/reference/api/rust-library-reference/nemo-relay/api/resource_metrics/enum-resourcelimitresource): Resource whose configured boundary produced a limit event. * [ResourceMeasurementScope](/nemo/relay/dev/reference/api/rust-library-reference/nemo-relay/api/resource_metrics/enum-resourcemeasurementscope): System or process boundary measured by a snapshot. * [ResourceMetricValue](/nemo/relay/dev/reference/api/rust-library-reference/nemo-relay/api/resource_metrics/enum-resourcemetricvalue): Exact integral values remain integers; converted fractional values are decimals. * [ResourceMetricsMeasurementScope](/nemo/relay/dev/reference/api/rust-library-reference/nemo-relay/api/resource_metrics/enum-resourcemetricsmeasurementscope): Measurement boundary selected for resource metric collection. * [ResourceOperatingSystem](/nemo/relay/dev/reference/api/rust-library-reference/nemo-relay/api/resource_metrics/enum-resourceoperatingsystem): Operating system that produced a resource metrics snapshot. * [UtilizationUnit](/nemo/relay/dev/reference/api/rust-library-reference/nemo-relay/api/resource_metrics/enum-utilizationunit): Units for GPU compute utilization. ## Constants * [RESOURCE_METRICS_EVENT_NAME](/nemo/relay/dev/reference/api/rust-library-reference/nemo-relay/api/resource_metrics/constant-resource-metrics-event-name): Canonical event name for resource metric marks. ## Traits * [ResourceUnit](/nemo/relay/dev/reference/api/rust-library-reference/nemo-relay/api/resource_metrics/trait-resourceunit): A unit with a stable name in snapshots and metric marks. ## Functions * [collect](/nemo/relay/dev/reference/api/rust-library-reference/nemo-relay/api/resource_metrics/fn-collect): Acquire a fresh snapshot without requiring managed polling.