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Commit ccec4b71 authored Mar 11, 2025 by Richard Uhler

Add flag to enable holdback study on jank_perceptible_narrow.

Bug: 304837972
Flag: android.app.jank_perceptible_narrow_holdback
Test: Device boots, verified holdback flag turns off jank_perceptible_narrow
Change-Id: I7afebfe7fe318143c7004e0a68e507bf66b695c1

parent 332a045f

core/java/android/app/ActivityManager.java

+1 −1

Original line number	Diff line number	Diff line
		@@ -1188,7 +1188,7 @@ public class ActivityManager {

		/** @hide Should this process state be considered jank perceptible? */
		public static final boolean isProcStateJankPerceptible(int procState) {
		if (Flags.jankPerceptibleNarrow()) {
		if (Flags.jankPerceptibleNarrow() && !Flags.jankPerceptibleNarrowHoldback()) {
		return procState == PROCESS_STATE_PERSISTENT_UI
		\|\| procState == PROCESS_STATE_TOP
		\|\| procState == PROCESS_STATE_IMPORTANT_FOREGROUND

core/java/android/app/ActivityThread.java

+1 −1

Original line number	Diff line number	Diff line
		@@ -4014,7 +4014,7 @@ public final class ActivityThread extends ClientTransactionHandler
		return VM_PROCESS_STATE_JANK_PERCEPTIBLE;
		}

		if (Flags.jankPerceptibleNarrow()) {
		if (Flags.jankPerceptibleNarrow() && !Flags.jankPerceptibleNarrowHoldback()) {
		// Unlike other persistent processes, system server is often on
		// the critical path for application startup. Mark it explicitly
		// as jank perceptible regardless of processState.

core/java/android/app/activity_manager.aconfig

+7 −0

Original line number	Diff line number	Diff line
		@@ -163,3 +163,10 @@ flag {
		description: "Narrow the scope of Jank Perceptible"
		bug: "304837972"
		}

		flag {
		name: "jank_perceptible_narrow_holdback"
		namespace: "system_performance"
		description: "Holdback study for jank_perceptible_narrow"
		bug: "304837972"
		}