cpu_profiling golang

cpu_profile.go

package main

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

var (
	cpuProfile    = "cpu.prof"
)

func main() {
  // Create file to stored the profiling  
 cpuProf, err := os.Create(cpuProfile)
 if err != nil {
	log.Fatal(err)
 }
 defer cpuProf.Close()
 _runtime.StartCPUProfile(cpuProf)
 defer _runtime.StopCPUProfile()
 ProcessBigArray()

}

func ProcessBigArray() {
	for i := 0; i < 10000; i++ {
		arr := bigArray()
		if arr == nil {
			fmt.Println("Array is Nil")
		}
	}
}

func bigArray() *[]int {
	s := make([]int, 1000000)
	return &s
}