CPU and memory profiler example

profiler.go

package main

import (
	"fmt"
	"os"
	"runtime"
	"runtime/pprof"
)

func main() {
	cpu, err := os.Create("/dev/shm/cpu.pprof")
	if err != nil {
		panic(err)
	}
	defer func() {
		if err = cpu.Close(); err != nil {
			panic(err)
		}
	}()
	if err := pprof.StartCPUProfile(cpu); err != nil {
		panic(err)
	}
	defer pprof.StopCPUProfile()

	fmt.Println("Fight dayo!")

	memory, err := os.Create("/dev/shm/memory.prof")
	if err != nil {
		panic(err)
	}
	defer func() {
		if err = memory.Close(); err != nil {
			panic(err)
		}
	}()
	runtime.GC()
	if err := pprof.WriteHeapProfile(os.Stdout); err != nil {
		panic(err)
	}
}