BatteryStats: Better big-little CPU accounting
Generalize cpu clusters so we can measure frequency
and power usage across heterogeneous cpu clusters.
This also brings back reading of cpu-times for power calculation.
Bug:22773176
Change-Id: I9c794ae9756c782c0e971c7f5fcebbe70374b269
diff --git a/core/java/android/os/BatteryStats.java b/core/java/android/os/BatteryStats.java
index bad94fc..8e86a53 100644
--- a/core/java/android/os/BatteryStats.java
+++ b/core/java/android/os/BatteryStats.java
@@ -463,13 +463,15 @@
public abstract long getCpuPowerMaUs(int which);
/**
- * Returns the approximate cpu time (in milliseconds) spent at a certain CPU speed.
+ * Returns the approximate cpu time (in milliseconds) spent at a certain CPU speed for a
+ * given CPU cluster.
+ * @param cluster the index of the CPU cluster.
* @param step the index of the CPU speed. This is not the actual speed of the CPU.
* @param which one of STATS_SINCE_CHARGED, STATS_SINCE_UNPLUGGED, or STATS_CURRENT.
- * @see BatteryStats#getCpuSpeedSteps()
+ * @see PowerProfile.getNumCpuClusters()
+ * @see PowerProfile.getNumSpeedStepsInCpuCluster(int)
*/
- @Deprecated
- public abstract long getTimeAtCpuSpeed(int step, int which);
+ public abstract long getTimeAtCpuSpeed(int cluster, int step, int which);
public static abstract class Sensor {
/*
@@ -2276,9 +2278,6 @@
public abstract Map<String, ? extends Timer> getKernelWakelockStats();
- /** Returns the number of different speeds that the CPU can run at */
- public abstract int getCpuSpeedSteps();
-
public abstract void writeToParcelWithoutUids(Parcel out, int flags);
private final static void formatTimeRaw(StringBuilder out, long seconds) {