Golang profiling with pprof

go-cpuprofile.go

import "runtime/pprof"

func main() {
    f, err := os.Create("cpuprofile")
    if err != nil {
        fmt.Fprintf(os.Stderr, "could not create CPU profile: %v\n", err)
        os.Exit(1)
    }
    if err := pprof.StartCPUProfile(f); err != nil {
        fmt.Fprintf(os.Stderr, "could not start CPU profile: %v\n", err)
        os.Exit(1)
    }
    defer pprof.StopCPUProfile()

    // run()
    // go tool pprof -http=:7777 cpuprofile 
}