diff options
Diffstat (limited to 'libgo/go/runtime/testdata/testprog/memprof.go')
-rw-r--r-- | libgo/go/runtime/testdata/testprog/memprof.go | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/libgo/go/runtime/testdata/testprog/memprof.go b/libgo/go/runtime/testdata/testprog/memprof.go new file mode 100644 index 0000000..a22fee6 --- /dev/null +++ b/libgo/go/runtime/testdata/testprog/memprof.go @@ -0,0 +1,49 @@ +// Copyright 2016 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 ( + "bytes" + "fmt" + "io/ioutil" + "os" + "runtime" + "runtime/pprof" +) + +func init() { + register("MemProf", MemProf) +} + +var memProfBuf bytes.Buffer +var memProfStr string + +func MemProf() { + for i := 0; i < 1000; i++ { + fmt.Fprintf(&memProfBuf, "%*d\n", i, i) + } + memProfStr = memProfBuf.String() + + runtime.GC() + + f, err := ioutil.TempFile("", "memprof") + if err != nil { + fmt.Fprintln(os.Stderr, err) + os.Exit(2) + } + + if err := pprof.WriteHeapProfile(f); err != nil { + fmt.Fprintln(os.Stderr, err) + os.Exit(2) + } + + name := f.Name() + if err := f.Close(); err != nil { + fmt.Fprintln(os.Stderr, err) + os.Exit(2) + } + + fmt.Println(name) +} |