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opt
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golang
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1.22.0
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src
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cmd
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pprof
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testdata
Dosya Düzenle: cpu.go
// Copyright 2021 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 ( "flag" "fmt" "os" "runtime/pprof" "time" ) var output = flag.String("output", "", "pprof profile output file") func main() { flag.Parse() if *output == "" { fmt.Fprintf(os.Stderr, "usage: %s -output file.pprof\n", os.Args[0]) os.Exit(2) } f, err := os.Create(*output) if err != nil { fmt.Fprintln(os.Stderr, err) os.Exit(2) } defer f.Close() if err := pprof.StartCPUProfile(f); err != nil { fmt.Fprintln(os.Stderr, err) os.Exit(2) } defer pprof.StopCPUProfile() // Spin for long enough to collect some samples. start := time.Now() for time.Since(start) < time.Second { } }
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