go tool pprof http://localhost:82/debug/pprof/profile
Fetching profile over HTTP from http://localhost:82/debug/pprof/profile
http://localhost:82/debug/pprof/profile: Get "http://localhost:82/debug/pprof/profile": dial tcp [::1]:82: connectex: No connection could be made because the target machine actively refused it.
failed to fetch any source profile



启动示例代码：

package main

import (
	"fmt"
	"net/http"
)
import _ "net/http/pprof"

func main() {
	var addTomap = func() {
		//s := []int{1, 2, 3}
		//s2 := make([]int, 0)
		var slice = []int{1}
		var slice2 = make([]int, 0)

		fmt.Printf("%p n", slice)
		fmt.Printf("%p", slice2)

	}
	addTomap()
	http.ListenAndServe(":81", nil)
}

启动上述代码服务 

访问：http://localhost:81/debug/pprof/