Only take the dump of the process that triggered the ANR around boot time to avoid expensive work. (d11c097c) · Commits · e / os / android_frameworks_base

services/core/java/com/android/server/am/AnrHelper.java

+7 −1

Original line number	Diff line number	Diff line
		@@ -62,6 +62,11 @@ class AnrHelper {
		*/
		private static final long CONSECUTIVE_ANR_TIME_MS = TimeUnit.MINUTES.toMillis(2);

		/**
		* Time to wait before taking dumps for other processes to reduce load at boot time.
		*/
		private static final long SELF_ONLY_AFTER_BOOT_MS = TimeUnit.MINUTES.toMillis(10);

		/**
		* The keep alive time for the threads in the helper threadpool executor
		*/
		@@ -231,7 +236,8 @@ class AnrHelper {
		// If there are many ANR at the same time, the latency may be larger.
		// If the latency is too large, the stack trace might not be meaningful.
		final long reportLatency = startTime - r.mTimestamp;
		final boolean onlyDumpSelf = reportLatency > EXPIRED_REPORT_TIME_MS;
		final boolean onlyDumpSelf = reportLatency > EXPIRED_REPORT_TIME_MS
		\|\| startTime < SELF_ONLY_AFTER_BOOT_MS;
		r.appNotResponding(onlyDumpSelf);
		final long endTime = SystemClock.uptimeMillis();
		Slog.d(TAG, "Completed ANR of " + r.mApp.processName + " in "

+2 −1

Original line number	Diff line number	Diff line
		@@ -133,7 +133,8 @@ public class AnrHelperTest {
		verify(mAnrApp.mErrorState, timeout(TIMEOUT_MS)).appNotResponding(
		eq(activityShortComponentName), eq(appInfo), eq(parentShortComponentName),
		eq(parentProcess), eq(aboveSystem), eq(timeoutRecord), eq(mAuxExecutorService),
		eq(false) /* onlyDumpSelf /, eq(false) /isContinuousAnr*/, eq(mEarlyDumpFuture));
		anyBoolean() /* onlyDumpSelf /, eq(false) /isContinuousAnr*/,
		eq(mEarlyDumpFuture));
		}

		@Test