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Merge "Throttle fetching RPM stats" into oc-mr1-dev

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This commit is contained in:
Adam Bookatz
2017-09-14 18:23:36 +00:00
committed by Android (Google) Code Review
parent e332629667 0b8a050853
commit 8ddb77a3df
1 changed files with 13 additions and 3 deletions
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16
core/java/com/android/internal/os/BatteryStatsImpl.java
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@@ -183,8 +183,12 @@ public class BatteryStatsImpl extends BatteryStats {
return mKernelMemoryStats;
}
/** Temporary container for Resource Power Manager stats. */
/** Container for Resource Power Manager stats. Updated by updateRpmStatsLocked. */
private final RpmStats mTmpRpmStats = new RpmStats();
/** The soonest the RPM stats can be updated after it was last updated. */
private static final long RPM_STATS_UPDATE_FREQ_MS = 1000;
/** Last time that RPM stats were updated by updateRpmStatsLocked. */
private long mLastRpmStatsUpdateTimeMs = -RPM_STATS_UPDATE_FREQ_MS;
public interface BatteryCallback {
public void batteryNeedsCpuUpdate();
@@ -10246,11 +10250,17 @@ public class BatteryStatsImpl extends BatteryStats {
}
/**
* Read and record Resource Power Manager state and voter times.
* Read and record Resource Power Manager (RPM) state and voter times.
* If RPM stats were fetched more recently than RPM_STATS_UPDATE_FREQ_MS ago, uses the old data
* instead of fetching it anew.
*/
public void updateRpmStatsLocked() {
if (mPlatformIdleStateCallback == null) return;
mPlatformIdleStateCallback.fillLowPowerStats(mTmpRpmStats);
long now = SystemClock.elapsedRealtime();
if (now - mLastRpmStatsUpdateTimeMs >= RPM_STATS_UPDATE_FREQ_MS) {
mPlatformIdleStateCallback.fillLowPowerStats(mTmpRpmStats);
mLastRpmStatsUpdateTimeMs = now;
}
for (Map.Entry<String, RpmStats.PowerStatePlatformSleepState> pstate
: mTmpRpmStats.mPlatformLowPowerStats.entrySet()) {