Performance Profiler extension enables the golang net/http/pprof endpoint. This is typically used by developers to collect performance profiles and investigate issues with the service.

The following settings are required:

• endpoint (default = localhost:1777): The endpoint in which the pprof will be listening to. Use localhost: to make it available only locally, or ":" to make it available on all network interfaces.
• block_profile_fraction (default = 0): Fraction of blocking events that are profiled. A value <= 0 disables profiling. See https://golang.org/pkg/runtime/#SetBlockProfileRate for details.
• mutex_profile_fraction (default = 0): Fraction of mutex contention events that are profiled. A value <= 0 disables profiling. See https://golang.org/pkg/runtime/#SetMutexProfileFraction for details.

The following settings can be optionally configured:

• save_to_file: File name to save the CPU profile to. The profiling starts when the Collector starts and is saved to the file when the Collector is terminated.

Example:

extensions:
  pprof:

The full list of settings exposed for this exporter are documented here with detailed sample configurations here.