From e3b4dfae6f6063ffbcc5d105fa54888b7e3873f7 Mon Sep 17 00:00:00 2001
From: Todd Poynor <toddpoynor@google.com>
Date: Fri, 16 Dec 2011 16:02:51 -0800
Subject: Android OS battery usage overstated by screen on time
Change-Id: Icbc4b3ecf91bdbb90da3ee0cf1c68bec953d0177
Signed-off-by: Todd Poynor <toddpoynor@google.com>
---
src/com/android/settings/fuelgauge/PowerUsageSummary.java | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/src/com/android/settings/fuelgauge/PowerUsageSummary.java b/src/com/android/settings/fuelgauge/PowerUsageSummary.java
index 6312682..b813ec6 100644
--- a/src/com/android/settings/fuelgauge/PowerUsageSummary.java
+++ b/src/com/android/settings/fuelgauge/PowerUsageSummary.java
@@ -579,11 +579,12 @@ public class PowerUsageSummary extends PreferenceFragment implements Runnable {
if (osApp != null) {
long wakeTimeMillis = mStats.computeBatteryUptime(
SystemClock.uptimeMillis() * 1000, which) / 1000;
- wakeTimeMillis -= appWakelockTime - (mStats.getScreenOnTime(
+ wakeTimeMillis -= appWakelockTime + (mStats.getScreenOnTime(
SystemClock.elapsedRealtime(), which) / 1000);
if (wakeTimeMillis > 0) {
double power = (wakeTimeMillis
* mPowerProfile.getAveragePower(PowerProfile.POWER_CPU_AWAKE)) / 1000;
+ if (DEBUG) Log.i(TAG, "OS wakeLockTime " + wakeTimeMillis + " power " + power);
osApp.wakeLockTime += wakeTimeMillis;
osApp.value += power;
osApp.values[0] += power;
--
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