Merge "Merge "Set the decay timer for all forked apps." am: 232ce7868d am: 241fb2fc53 am: 50ee43bbfa" into oc-dev-plus-aosp

am: 5deb5277f5

Change-Id: I8f96bfcb9f9126e2617d2183a08a00293a253dce

core/jni/com_android_internal_os_Zygote.cpp

@@ -27,6 +27,7 @@
 #include <fcntl.h>
 #include <grp.h>
 #include <inttypes.h>
+#include <malloc.h>
 #include <mntent.h>
 #include <paths.h>
 #include <signal.h>
@@ -519,6 +520,9 @@ static pid_t ForkAndSpecializeCommon(JNIEnv* env, uid_t uid, gid_t gid, jintArra
     // The child process.
     gMallocLeakZygoteChild = 1;
 
+    // Set the jemalloc decay time to 1.
+    mallopt(M_DECAY_TIME, 1);
+
     // Clean up any descriptors which must be closed immediately
     DetachDescriptors(env, fdsToClose);