Grafana Cloud Monitor applications Beyla Profiling

Beyla profiling

To profile a Beyla instrumented application do the following:

1. Run the auto-instrumentation tool with the PROFILE_PORT variable set, e.g. 6060.

2. Download the required profiles:

   sh

   curl -o <profile> http://localhost:6060/debug/pprof/<profile>

   Where <profile> can be:

   • allocs: a sample of all past memory allocations
   • block: stack traces that led to blocking on synchronization primitives
   • cmdline: the command to run the program to profile
   • goroutine: stack traces of all current goroutines
   • heap: a sample of memory allocations of live objects
     • provide an optional gc query parameter to run the GC before sampling the heap
   • mutex: stack traces of holders of contended mutexes
   • profile: CPU profile
     • provide an optional duration query parameter in seconds
   • threadcreate: stack traces that led to the creation of new OS threads
   • trace: a trace of execution of the current program
     • provide an optional duration query parameter in seconds

   Example:

   sh

   curl "http://localhost:6060/debug/pprof/trace?seconds=20" -o trace20s
   curl "http://localhost:6060/debug/pprof/profile?duration=20" -o profile20s
   curl "http://localhost:6060/debug/pprof/heap?gc" -o heap
   curl "http://localhost:6060/debug/pprof/allocs" -o allocs
   curl "http://localhost:6060/debug/pprof/goroutine" -o goroutine

3. Use go tool pprof to dig into the profiles (go tool trace for trace profiles)