Merge "Enable boost-locked-region-priority" into nyc-dev am: 430894d1bb am: 1969c9cf17 (8ae08989) · Commits · e / os / android_frameworks_base

services/core/Android.mk

+6 −0

Original line number	Original line	Diff line number	Diff line
	@@ -24,4 +24,10 @@ ifneq ($(INCREMENTAL_BUILDS),)
	LOCAL_JACK_ENABLED := incremental		LOCAL_JACK_ENABLED := incremental
	endif		endif

			LOCAL_JACK_FLAGS := \
			-D jack.transformations.boost-locked-region-priority=true \
			-D jack.transformations.boost-locked-region-priority.classname=com.android.server.am.ActivityManagerService \
			-D jack.transformations.boost-locked-region-priority.request=com.android.server.am.ActivityManagerService\#boostPriorityForLockedSection \
			-D jack.transformations.boost-locked-region-priority.reset=com.android.server.am.ActivityManagerService\#resetPriorityAfterLockedSection

	include $(BUILD_STATIC_JAVA_LIBRARY)		include $(BUILD_STATIC_JAVA_LIBRARY)

+24 −0

Original line number	Original line	Diff line number	Diff line
	@@ -628,6 +628,30 @@ public final class ActivityManagerService extends ActivityManagerNative
	return mShowDialogs && !mSleeping && !mShuttingDown;		return mShowDialogs && !mSleeping && !mShuttingDown;
	}		}

			// it's a semaphore; boost when 0->1, reset when 1->0
			static ThreadLocal<Integer> sIsBoosted = new ThreadLocal<Integer>() {
			@Override protected Integer initialValue() {
			return 0;
			}
			};

			static void boostPriorityForLockedSection() {
			if (sIsBoosted.get() == 0) {
			// boost to prio 118 while holding a global lock
			Process.setThreadPriority(Process.myTid(), -2);
			//Log.e(TAG, "PRIORITY BOOST: set priority on TID " + Process.myTid());
			}
			int cur = sIsBoosted.get();
			sIsBoosted.set(cur + 1);
			}

			static void resetPriorityAfterLockedSection() {
			sIsBoosted.set(sIsBoosted.get() - 1);
			if (sIsBoosted.get() == 0) {
			//Log.e(TAG, "PRIORITY BOOST: reset priority on TID " + Process.myTid());
			Process.setThreadPriority(Process.myTid(), 0);
			}
			}
	public class PendingAssistExtras extends Binder implements Runnable {		public class PendingAssistExtras extends Binder implements Runnable {
	public final ActivityRecord activity;		public final ActivityRecord activity;
	public final Bundle extras;		public final Bundle extras;