Call VMRuntime.clampGrowthLimit for small heap apps
If the manifest doesn't specify large heaps, we now call
VMRuntime.clampGrowthLimit to release heap virtual address space
which won't ever get used.
Bug: 18387825
Bug: 17131630
Change-Id: I61fdcd70c70234256637eeebefe3abb22b91095d
diff --git a/core/java/android/app/ActivityThread.java b/core/java/android/app/ActivityThread.java
index 6233676..978366e 100644
--- a/core/java/android/app/ActivityThread.java
+++ b/core/java/android/app/ActivityThread.java
@@ -4481,6 +4481,10 @@
if ((data.appInfo.flags&ApplicationInfo.FLAG_LARGE_HEAP) != 0) {
dalvik.system.VMRuntime.getRuntime().clearGrowthLimit();
+ } else {
+ // Small heap, clamp to the current growth limit and let the heap release
+ // pages after the growth limit to the non growth limit capacity. b/18387825
+ dalvik.system.VMRuntime.getRuntime().clampGrowthLimit();
}
// Allow disk access during application and provider setup. This could
