I strongly recommend not using this. Instead use pprof - it has a MUCH better interactive flamegraph, plus other nice performance visualisations (e.g. a call gr

I strongly recommend not using this. Instead use pprof - it has a MUCH better interactive flamegraph, plus other nice performance visualisations (e.g. a call graph): https://github.com/google/pprof https://github.com/google/pprof go install github.com/google/pprof@latest pprof -http=: prof.out I normally collect the profiles with gperftools (https://github.com/gperftools/gperftools https://github.com/gperftools/gperftools) and then just LD_PRELOAD=/usr/lib/libtcmalloc_and_profiler.so CPUPROFILE=prof.out <your command> I've been meaning to try Samply though. Not sure if it works with pprof.