commit 535fae32e597445a480896ea8e01662ada444c0c
author Tim Murray <timmurray@google.com> Mon Oct 15 16:29:15 2018 -0700
committer Tim Murray <timmurray@google.com> Thu Oct 18 23:26:10 2018 +0000
tree 3d60213ac8686e19488cd2d081d5725a745debf5
parent 2b2011a80529e72334a8fead2d2706e47cfa64b9

hwui: purge malloc pages on bitmap destruction

Immediately purge malloc pages on bitmap destruction. Bitmaps are often
big and can cause memory to stay high for much longer than it should.

Test: boots and works
bug 117795621

Merged-in: If2e8c5f1fc07039cf3dc3edcd3dc06861dbce1a1
Change-Id: If2e8c5f1fc07039cf3dc3edcd3dc06861dbce1a1

libs/hwui/hwui/Bitmap.cpp

diff --git a/libs/hwui/hwui/Bitmap.cpp b/libs/hwui/hwui/Bitmap.cpp
index 263d249..c6ef090 100644
--- a/libs/hwui/hwui/Bitmap.cpp
+++ b/libs/hwui/hwui/Bitmap.cpp
@@ -223,6 +223,7 @@
             break;
         case PixelStorageType::Heap:
             free(mPixelStorage.heap.address);
+            mallopt(M_PURGE, 0);
             break;
         case PixelStorageType::Hardware:
             auto buffer = mPixelStorage.hardware.buffer;
@@ -230,7 +231,6 @@
             mPixelStorage.hardware.buffer = nullptr;
             break;
     }
-
     android::uirenderer::renderthread::RenderProxy::onBitmapDestroyed(getStableID());
 }