Metrics and attributes collected by the Splunk Distribution of OTel Go 🔗

The Splunk Distribution of OpenTelemetry Go collects runtime and custom metrics. To learn about the different metric types, see Metric types.

For custom metrics instrumentation and instrument types, see Create custom metrics.

Runtime metrics 🔗

The following runtime metrics are automatically collected and exported:

Metric	Type	Description
`runtime.go.cgo.calls` (Experimental)	Gauge	Number of cgo calls made by the current process.
`runtime.go.gc.count` (Experimental)	Cumulative counter	Number of completed garbage collection cycles
`runtime.go.gc.pause_ns` (Experimental)	Cumulative counter (histogram)	Amount of nanoseconds in GC stop-the-world pauses
`runtime.go.gc.pause_total_ns` (Experimental)	Cumulative counter	Cumulative nanoseconds in GC stop-the-world pauses since the program started
`runtime.go.goroutines` (Experimental)	Gauge	Number of goroutines that currently exist
`runtime.go.lookups` (Experimental)	Cumulative counter	Number of pointer lookups performed by the runtime
`runtime.go.mem.heap_alloc` (Experimental)	Gauge	Bytes of allocated heap objects
`runtime.go.mem.heap_idle` (Experimental)	Gauge	Bytes in idle (unused) spans
`runtime.go.mem.heap_inuse` (Experimental)	Gauge	Bytes in in-use spans
`runtime.go.mem.heap_objects` (Experimental)	Gauge	Number of allocated heap objects
`runtime.go.mem.heap_released` (Experimental)	Gauge	Bytes of idle spans whose physical memory has been returned to the OS
`runtime.go.mem.heap_sys` (Experimental)	Gauge	Bytes of heap memory obtained from the OS
`runtime.go.mem.live_objects` (Experimental)	Gauge	Number of live objects is the number of cumulative Mallocs - Frees
`runtime.uptime` (Experimental)	Cumulative counter	Milliseconds since application was initialized

The Splunk Distribution of OpenTelemetry Go instruments several connection pool implementations:

Each of the connection pools reports a subset of the following metrics:

Metric	Type	Description
`db.client.connections.usage` (Experimental)	Gauge	Number of connections that are currently in the state described by the `state` attribute.
`db.client.connections.max` (Experimental)	Gauge	Maximum number of open connections allowed.
`db.client.connections.wait_time` (Experimental)	Timer	Time it took to obtain an open connection from the pool.

The following attributes are available:

Tag	Value
`pool.name` (Experimental)	Name of the connection pool. Applies to all connection pool metrics.
`state` (Experimental)	State of the connection. Can be `idle` or `used`. Only applies to the `db.client.connections.usage` metric.

This page was last updated on Jun 23, 2023.