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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,44 @@ | ||
| package common | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "github.com/shirou/gopsutil/cpu" | ||
| "os" | ||
| "runtime/pprof" | ||
| "time" | ||
| ) | ||
|
|
||
| // Monitor 定时监控cpu使用率，超过阈值输出pprof文件 | ||
| func Monitor() { | ||
| for { | ||
| percent, err := cpu.Percent(time.Second, false) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
| if percent[0] > 80 { | ||
| fmt.Println("cpu usage too high") | ||
| // write pprof file | ||
| if _, err := os.Stat("./pprof"); os.IsNotExist(err) { | ||
| err := os.Mkdir("./pprof", os.ModePerm) | ||
| if err != nil { | ||
| SysLog("创建pprof文件夹失败 " + err.Error()) | ||
| continue | ||
| } | ||
| } | ||
| f, err := os.Create("./pprof/" + fmt.Sprintf("cpu-%s.pprof", time.Now().Format("20060102150405"))) | ||
| if err != nil { | ||
| SysLog("创建pprof文件失败 " + err.Error()) | ||
| continue | ||
| } | ||
| err = pprof.StartCPUProfile(f) | ||
| if err != nil { | ||
| SysLog("启动pprof失败 " + err.Error()) | ||
| continue | ||
| } | ||
| time.Sleep(10 * time.Second) // profile for 30 seconds | ||
| pprof.StopCPUProfile() | ||
| f.Close() | ||
| } | ||
| time.Sleep(30 * time.Second) | ||
| } | ||
| } |
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