/
pprof2.go
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/
pprof2.go
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//++++++++++++++++++++++++++++++++++++++++
// 《Go语言高级开发与实战》源码
//++++++++++++++++++++++++++++++++++++++++
// Author:廖显东(ShirDon)
// Blog:https://www.shirdon.com/
// 知乎:https://www.zhihu.com/people/shirdonl
// 公众号:源码大数据
// 仓库地址:https://gitee.com/shirdonl/goAdvanced
// 仓库地址:https://github.com/shirdonl/goAdvanced
//++++++++++++++++++++++++++++++++++++++++
package main
import (
"flag"
"log"
_ "net/http/pprof"
"os"
"runtime"
"runtime/pprof"
)
var cpuprofile = flag.String("cpuprofile", "", "write cpu profile to `file`")
var memprofile = flag.String("memprofile", "", "write memory profile to `file`")
func main() {
flag.Parse()
if *cpuprofile != "" {
f, err := os.Create(*cpuprofile)
if err != nil {
log.Fatal("could not create CPU profile: ", err)
}
if err := pprof.StartCPUProfile(f); err != nil {
log.Fatal("could not start CPU profile: ", err)
}
defer pprof.StopCPUProfile()
}
// ... 省略部分代码...
if *memprofile != "" {
f, err := os.Create(*memprofile)
if err != nil {
log.Fatal("could not create memory profile: ", err)
}
runtime.GC()
if err := pprof.WriteHeapProfile(f); err != nil {
log.Fatal("could not write memory profile: ", err)
}
f.Close()
}
}