commit 379d09fe3c3feb7c2a2fb5a3623689b5ace7e79b
author Mathieu Chartier <mathieuc@google.com> Thu Jan 08 11:28:13 2015 -0800
committer Mathieu Chartier <mathieuc@google.com> Thu Jan 08 16:02:00 2015 -0800
tree 680b4173130057a1f70ad321eaf4cfbeba0e291c
parent ca7d89d09294254f16db170a53b0f8dfbf0213ac

Add clamp growth limit

Clamp growth limit shrinks the space memmaps to the current growth
limit. This reduces virtual memory usage for apps with small heaps.

Bug: 18387825
Bug: 17131630

Change-Id: I4a8fdc335d2c40492e991708adabcc46299efb7d

runtime/native/dalvik_system_VMRuntime.cc

diff --git a/runtime/native/dalvik_system_VMRuntime.cc b/runtime/native/dalvik_system_VMRuntime.cc
index f503b35..471aa9c 100644
--- a/runtime/native/dalvik_system_VMRuntime.cc
+++ b/runtime/native/dalvik_system_VMRuntime.cc
@@ -134,6 +134,10 @@
   Runtime::Current()->GetHeap()->ClearGrowthLimit();
 }
 
+static void VMRuntime_clampGrowthLimit(JNIEnv*, jobject) {
+  Runtime::Current()->GetHeap()->ClampGrowthLimit();
+}
+
 static jboolean VMRuntime_isDebuggerActive(JNIEnv*, jobject) {
   return Dbg::IsDebuggerActive();
 }
@@ -577,6 +581,7 @@
 static JNINativeMethod gMethods[] = {
   NATIVE_METHOD(VMRuntime, addressOf, "!(Ljava/lang/Object;)J"),
   NATIVE_METHOD(VMRuntime, bootClassPath, "()Ljava/lang/String;"),
+  NATIVE_METHOD(VMRuntime, clampGrowthLimit, "()V"),
   NATIVE_METHOD(VMRuntime, classPath, "()Ljava/lang/String;"),
   NATIVE_METHOD(VMRuntime, clearGrowthLimit, "()V"),
   NATIVE_METHOD(VMRuntime, concurrentGC, "()V"),