52 lines
869 B
Go
52 lines
869 B
Go
// Copyright 2016 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package main
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import (
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"bytes"
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"fmt"
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"os"
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"runtime"
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"runtime/pprof"
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)
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func init() {
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register("MemProf", MemProf)
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}
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var memProfBuf bytes.Buffer
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var memProfStr string
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func MemProf() {
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// Force heap sampling for determinism.
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runtime.MemProfileRate = 1
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for i := 0; i < 10; i++ {
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fmt.Fprintf(&memProfBuf, "%*d\n", i, i)
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}
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memProfStr = memProfBuf.String()
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runtime.GC()
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f, err := os.CreateTemp("", "memprof")
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if err != nil {
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fmt.Fprintln(os.Stderr, err)
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os.Exit(2)
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}
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if err := pprof.WriteHeapProfile(f); err != nil {
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fmt.Fprintln(os.Stderr, err)
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os.Exit(2)
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}
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name := f.Name()
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if err := f.Close(); err != nil {
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fmt.Fprintln(os.Stderr, err)
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os.Exit(2)
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}
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fmt.Println(name)
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}
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