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-rw-r--r--src/runtime/testdata/testprog/memprof.go51
1 files changed, 51 insertions, 0 deletions
diff --git a/src/runtime/testdata/testprog/memprof.go b/src/runtime/testdata/testprog/memprof.go
new file mode 100644
index 0000000..0392e60
--- /dev/null
+++ b/src/runtime/testdata/testprog/memprof.go
@@ -0,0 +1,51 @@
+// 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"
+ "os"
+ "runtime"
+ "runtime/pprof"
+)
+
+func init() {
+ register("MemProf", MemProf)
+}
+
+var memProfBuf bytes.Buffer
+var memProfStr string
+
+func MemProf() {
+ // Force heap sampling for determinism.
+ runtime.MemProfileRate = 1
+
+ for i := 0; i < 10; i++ {
+ fmt.Fprintf(&memProfBuf, "%*d\n", i, i)
+ }
+ memProfStr = memProfBuf.String()
+
+ runtime.GC()
+
+ f, err := os.CreateTemp("", "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)
+}