golang pprof

1. add pprof in golang program

https://pkg.go.dev/runtime/pprof

2. collect pprof data

Use the pprof tool to look at the heap profile:

curl http://localhost:6060/debug/pprof/heap --output heap.txt

Or to look at a 30-second CPU profile:

curl http://localhost:6060/debug/pprof/profile?seconds=30 --output profile.txt