From: Shenghou Ma <minux.ma@gmail.com>
Date: Wed, 15 Jan 2014 00:23:36 +0000 (-0500)
Subject: runtime/debug: force GC after setting of GCPercent to make it effective.
X-Git-Tag: go1.3beta1~967
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=0db71338ed23324015d5d0600d2670fb3ed440b4;p=gostls13.git

runtime/debug: force GC after setting of GCPercent to make it effective.
See also discussion in CL 51010045.

R=golang-codereviews, r
CC=golang-codereviews
https://golang.org/cl/52230043
---

diff --git a/src/pkg/runtime/debug/garbage.go b/src/pkg/runtime/debug/garbage.go
index 8337d5d5b3..a724fdf8f6 100644
--- a/src/pkg/runtime/debug/garbage.go
+++ b/src/pkg/runtime/debug/garbage.go
@@ -91,7 +91,9 @@ func (x byDuration) Less(i, j int) bool { return x[i] < x[j] }
 // at startup, or 100 if the variable is not set.
 // A negative percentage disables garbage collection.
 func SetGCPercent(percent int) int {
-	return setGCPercent(percent)
+	old := setGCPercent(percent)
+	runtime.GC()
+	return old
 }
 
 // FreeOSMemory forces a garbage collection followed by an