From 7d34aff8f12280af33d98a7dbe2639a7adb7d9a1 Mon Sep 17 00:00:00 2001
From: Raul Silvera <rauls5382@gmail.com>
Date: Thu, 17 Jan 2019 13:47:53 -0800
Subject: [PATCH] Force heap sampling on memprof test program for determinism

---
 src/runtime/testdata/testprog/memprof.go | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/runtime/testdata/testprog/memprof.go b/src/runtime/testdata/testprog/memprof.go
index a22fee61d7..7c700af852 100644
--- a/src/runtime/testdata/testprog/memprof.go
+++ b/src/runtime/testdata/testprog/memprof.go
@@ -14,6 +14,8 @@ import (
 )
 
 func init() {
+	// Force heap sampling for determinism.
+	runtime.MemProfileRate = 1
 	register("MemProf", MemProf)
 }