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timeprof.go
// Copyright 2018 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package main import ( "fmt" "os" "runtime/pprof" "time" ) func init() { register("TimeProf", TimeProf) } func TimeProf() { f, err := os.CreateTemp("", "timeprof") if err != nil { fmt.Fprintln(os.Stderr, err) os.Exit(2) } if err := pprof.StartCPUProfile(f); err != nil { fmt.Fprintln(os.Stderr, err) os.Exit(2) } t0 := time.Now() // We should get a profiling signal 100 times a second, // so running for 1/10 second should be sufficient. for time.Since(t0) < time.Second/10 { } pprof.StopCPUProfile() name := f.Name() if err := f.Close(); err != nil { fmt.Fprintln(os.Stderr, err) os.Exit(2) } fmt.Println(name) }
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