Measured energy for Ambient Display in BatteryUsageStats (8c2e375c) · Commits · e / os / android_frameworks_base

core/java/android/os/BatteryUsageStatsQuery.java

+8 −0

Original line number	Diff line number	Diff line
		@@ -79,6 +79,14 @@ public final class BatteryUsageStatsQuery implements Parcelable {
		return mUserIds;
		}

		/**
		* Returns true if the power calculations must be based on the PowerProfile constants,
		* even if measured energy data is available.
		*/
		public boolean shouldForceUsePowerProfileModel() {
		return (mFlags & FLAG_BATTERY_USAGE_STATS_POWER_PROFILE_MODEL) != 0;
		}

		private BatteryUsageStatsQuery(Parcel in) {
		mFlags = in.readInt();
		mUserIds = new int[in.readInt()];

core/java/com/android/internal/os/AmbientDisplayPowerCalculator.java

+8 −17

Original line number	Diff line number	Diff line
		@@ -46,15 +46,13 @@ public class AmbientDisplayPowerCalculator extends PowerCalculator {
		long rawRealtimeUs, long rawUptimeUs, BatteryUsageStatsQuery query) {
		final long durationMs = calculateDuration(batteryStats, rawRealtimeUs,
		BatteryStats.STATS_SINCE_CHARGED);
		final double powerMah = mPowerEstimator.calculatePower(durationMs);
		if (powerMah > 0) {
		final double powerMah = getMeasuredOrEstimatedPower(batteryStats.getScreenDozeEnergy(),
		mPowerEstimator, durationMs, query.shouldForceUsePowerProfileModel());
		builder.getOrCreateSystemBatteryConsumerBuilder(
		SystemBatteryConsumer.DRAIN_TYPE_AMBIENT_DISPLAY)
		.setConsumedPower(BatteryConsumer.POWER_COMPONENT_USAGE, powerMah)
		.setUsageDurationMillis(BatteryConsumer.TIME_COMPONENT_USAGE, durationMs);
		}
		// TODO(b/178140704): Attribute measured total usage for BatteryUsageStats.
		}

		/**
		* Ambient display power is the additional power the screen takes while in ambient display/
		@@ -66,8 +64,8 @@ public class AmbientDisplayPowerCalculator extends PowerCalculator {
		public void calculate(List<BatterySipper> sippers, BatteryStats batteryStats,
		long rawRealtimeUs, long rawUptimeUs, int statsType, SparseArray<UserHandle> asUsers) {
		final long durationMs = calculateDuration(batteryStats, rawRealtimeUs, statsType);
		final double powerMah = getMeasuredOrEstimatedPower(
		batteryStats.getScreenDozeEnergy(), durationMs);
		final double powerMah = getMeasuredOrEstimatedPower(batteryStats.getScreenDozeEnergy(),
		mPowerEstimator, durationMs, false);
		if (powerMah > 0) {
		BatterySipper bs = new BatterySipper(BatterySipper.DrainType.AMBIENT_DISPLAY, null, 0);
		bs.usagePowerMah = powerMah;
		@@ -81,11 +79,4 @@ public class AmbientDisplayPowerCalculator extends PowerCalculator {
		return batteryStats.getScreenDozeTime(rawRealtimeUs, statsType) / 1000;
		}

		private double getMeasuredOrEstimatedPower(long measuredEnergyUJ, long durationMs) {
		if (measuredEnergyUJ != BatteryStats.ENERGY_DATA_UNAVAILABLE) {
		return uJtoMah(measuredEnergyUJ);
		} else {
		return mPowerEstimator.calculatePower(durationMs);
		}
		}
		}

core/java/com/android/internal/os/PowerCalculator.java

+13 −0

Original line number	Diff line number	Diff line
		@@ -112,6 +112,19 @@ public abstract class PowerCalculator {
		public void reset() {
		}

		/**
		* Returns either the measured energy converted to mAh or a usage-based estimate.
		*/
		protected static double getMeasuredOrEstimatedPower(long measuredEnergyUj,
		UsageBasedPowerEstimator powerEstimator, long durationMs,
		boolean forceUsePowerProfileModel) {
		if (measuredEnergyUj != BatteryStats.ENERGY_DATA_UNAVAILABLE
		&& !forceUsePowerProfileModel) {
		return uJtoMah(measuredEnergyUj);
		}
		return powerEstimator.calculatePower(durationMs);
		}

		/**
		* Converts charge in mAh to string.
		*/

core/java/com/android/internal/os/ScreenPowerCalculator.java

+1 −3

Original line number	Diff line number	Diff line
		@@ -61,12 +61,10 @@ public class ScreenPowerCalculator extends PowerCalculator {
		public void calculate(BatteryUsageStats.Builder builder, BatteryStats batteryStats,
		long rawRealtimeUs, long rawUptimeUs, BatteryUsageStatsQuery query) {
		final PowerAndDuration totalPowerAndDuration = new PowerAndDuration();
		final boolean forceUsePowerProfileModel = (query.getFlags()
		& BatteryUsageStatsQuery.FLAG_BATTERY_USAGE_STATS_POWER_PROFILE_MODEL) != 0;

		final boolean useEnergyData = calculateTotalDurationAndPower(totalPowerAndDuration,
		batteryStats, rawRealtimeUs, BatteryStats.STATS_SINCE_CHARGED,
		forceUsePowerProfileModel);
		query.shouldForceUsePowerProfileModel());

		builder.getOrCreateSystemBatteryConsumerBuilder(SystemBatteryConsumer.DRAIN_TYPE_SCREEN)
		.setUsageDurationMillis(BatteryConsumer.TIME_COMPONENT_USAGE,

core/tests/coretests/src/com/android/internal/os/AmbientDisplayPowerCalculatorTest.java

+43 −7

Original line number	Diff line number	Diff line
		@@ -19,6 +19,7 @@ package com.android.internal.os;
		import static com.google.common.truth.Truth.assertThat;

		import android.os.BatteryConsumer;
		import android.os.BatteryUsageStatsQuery;
		import android.os.SystemBatteryConsumer;
		import android.view.Display;

		@@ -33,18 +34,29 @@ import org.junit.runner.RunWith;
		@SmallTest
		public class AmbientDisplayPowerCalculatorTest {
		private static final double PRECISION = 0.00001;
		private static final long MINUTE_IN_MS = 60 * 1000;

		@Rule
		public final BatteryUsageStatsRule mStatsRule = new BatteryUsageStatsRule()
		.setAveragePower(PowerProfile.POWER_AMBIENT_DISPLAY, 360.0);
		.setAveragePower(PowerProfile.POWER_AMBIENT_DISPLAY, 10.0);

		@Test
		public void testTimerBasedModel() {
		public void testMeasuredEnergyBasedModel() {
		BatteryStatsImpl stats = mStatsRule.getBatteryStats();

		stats.noteScreenStateLocked(Display.STATE_ON, 1000, 1000, 1000);
		stats.noteScreenStateLocked(Display.STATE_DOZE, 2000, 2000, 2000);
		stats.noteScreenStateLocked(Display.STATE_OFF, 3000, 3000, 3000);
		stats.updateDisplayEnergyLocked(300_000_000, Display.STATE_ON, 0);

		stats.noteScreenStateLocked(Display.STATE_DOZE, 30 * MINUTE_IN_MS, 30 * MINUTE_IN_MS,
		30 * MINUTE_IN_MS);

		stats.updateDisplayEnergyLocked(200_000_000, Display.STATE_DOZE,
		30 * MINUTE_IN_MS);

		stats.noteScreenStateLocked(Display.STATE_OFF, 120 * MINUTE_IN_MS, 120 * MINUTE_IN_MS,
		120 * MINUTE_IN_MS);

		stats.updateDisplayEnergyLocked(100_000_000, Display.STATE_OFF,
		120 * MINUTE_IN_MS);

		AmbientDisplayPowerCalculator calculator =
		new AmbientDisplayPowerCalculator(mStatsRule.getPowerProfile());
		@@ -55,8 +67,32 @@ public class AmbientDisplayPowerCalculatorTest {
		mStatsRule.getSystemBatteryConsumer(
		SystemBatteryConsumer.DRAIN_TYPE_AMBIENT_DISPLAY);
		assertThat(consumer.getUsageDurationMillis(BatteryConsumer.TIME_COMPONENT_USAGE))
		.isEqualTo(1000);
		.isEqualTo(90 * MINUTE_IN_MS);
		assertThat(consumer.getConsumedPower(BatteryConsumer.POWER_COMPONENT_USAGE))
		.isWithin(PRECISION).of(7.5075075);
		}

		@Test
		public void testPowerProfileBasedModel() {
		BatteryStatsImpl stats = mStatsRule.getBatteryStats();

		stats.noteScreenStateLocked(Display.STATE_DOZE, 30 * MINUTE_IN_MS, 30 * MINUTE_IN_MS,
		30 * MINUTE_IN_MS);
		stats.noteScreenStateLocked(Display.STATE_OFF, 120 * MINUTE_IN_MS, 120 * MINUTE_IN_MS,
		120 * MINUTE_IN_MS);

		AmbientDisplayPowerCalculator calculator =
		new AmbientDisplayPowerCalculator(mStatsRule.getPowerProfile());

		mStatsRule.apply(new BatteryUsageStatsQuery.Builder().powerProfileModeledOnly().build(),
		calculator);

		SystemBatteryConsumer consumer =
		mStatsRule.getSystemBatteryConsumer(
		SystemBatteryConsumer.DRAIN_TYPE_AMBIENT_DISPLAY);
		assertThat(consumer.getUsageDurationMillis(BatteryConsumer.TIME_COMPONENT_USAGE))
		.isEqualTo(90 * MINUTE_IN_MS);
		assertThat(consumer.getConsumedPower(BatteryConsumer.POWER_COMPONENT_USAGE))
		.isWithin(PRECISION).of(0.1);
		.isWithin(PRECISION).of(15.0);
		}
		}