go pprof 及 trace 完整操作指南 GC或性能分析 （windows平台linux平台皆可）

 1package main
 2import (
 3   "net/http"
 4   "runtime"
 5   "os"
 6   "fmt"
 7   "runtime/trace"
 8   _"net/http/pprof"
 9   "runtime/debug"
10   "time"
11   "sync"
12)
13func main() {
14   //开启强大的分析器
15   go pprof()
16    //以下是运行测试(也可以贴你自己的)代码
17   var c sync.Map
18   for i:=0;i<100;i++{
19      time.Sleep(time.Second*1)
20      go func(){
21         for j:=0;j<1000000;j++{
22            time.Sleep(time.Millisecond*20)
23            c.Store(fmt.Sprintf("%d",j),j)
24            fmt.Println(c.Load(fmt.Sprintf("%d",j)))
25         }
26      }()
27   }
28   time.Sleep(time.Second*20)
29    fmt.Scan()
30}
31//运行pprof分析器
32func pprof(){
33   go func() {
34      //关闭GC
35      debug.SetGCPercent(-1)
36      //运行trace
37      http.HandleFunc("/start", traces)
38      //停止trace
39      http.HandleFunc("/stop", traceStop)
40      //手动GC
41      http.HandleFunc("/gc", gc)
42      //网站开始监听
43      http.ListenAndServe(":6060", nil)
44   }()
45}
46//手动GC
47func gc(w http.ResponseWriter, r *http.Request) {
48   runtime.GC()
49   w.Write([]byte("StartGC"))
50}
51//运行trace
52func traces(w http.ResponseWriter, r *http.Request){
53   f, err := os.Create("trace.out")
54   if err != nil {
55      panic(err)
56   }
57   err = trace.Start(f)
58   if err != nil {
59      panic(err)
60   }
61   w.Write([]byte("TrancStart"))
62   fmt.Println("StartTrancs")
63}
64//停止trace
65func traceStop(w http.ResponseWriter, r *http.Request){
66   trace.Stop()
67   w.Write([]byte("TrancStop"))
68   fmt.Println("StopTrancs")
69}

go tool pprof  http://localhost:6060/debug/pprof/profile