高通安卓平台功耗软件分析步骤

F3XX0P待机功耗高，高于8ma分析 先看kmsg是否有abort的中断源，处理中断源Abort: Pending Wakeup Sources 什么原因造成的 1）LOG如下： 从log中看 [ 139.658736] dpm_run_callback(): platform_pm_suspend+0x0/0x58 returns -16 [ 139.658744] PM: Device alarmtimer failed to suspend: error -16，是由于alarmtimer 影响进入睡眠，连网同步下时间功耗就正常 2）时间同步后，自动息屏，非按power键息屏。 LOG如下： [11:29:18.837]收←◆[ 429.656231] Restarting tasks ... done. [ 429.676628] Abort: Pending Wakeup Sources: event1 [ 429.681631] PM: suspend exit log中显示中断源event1会影响进入睡眠，该问题是硬件问题，硬件已知晓该按键会影响自动息屏问题,也会影响进入休眠造成功耗高 FXX0 A14 插sim卡开数据待机功耗25ma，要求7ma（高压电池） 看是否有应用持wakelock锁，待机后通过串口应用发送dumpsys power，对比息屏前后log，发现com.android.rkpdapp会阻止睡眠，通过pm disable com.android.rkpdapp ,功耗正常，对应修改系统app的移除配置 LOG如下： Looper state: Looper (PowerManagerService, tid 48) {4a306c2} Message 0: { when=+1s611ms what=4 target=android.os.Handler } (Total messages: 1, polling=true, quitting=false) Wake Locks: size=4 PARTIAL_WAKE_LOCK '*job*/com.android.rkpdapp/androidx.work.impl.background.systemjob.SystemJobService#11261' ACQ=-58s389ms (uid=1000 pid=1205 ws=WorkSource{10077 com.android.rkpdapp}) PARTIAL_WAKE_LOCK '*job*/com.android.rkpdapp/androidx.work.impl.background.systemjob.SystemJobService#11267' ACQ=-58s370ms (uid=1000 pid=1205 ws=WorkSource{10077 com.android.rkpdapp}) PARTIAL_WAKE_LOCK '*job*/com.android.rkpdapp/androidx.work.impl.background.systemjob.SystemJobService#11265' ACQ=-58s358ms (uid=1000 pid=1205 ws=WorkSource{10077 com.android.rkpdapp}) PARTIAL_WAKE_LOCK '*job*/com.android.rkpdapp/androidx.work.impl.background.systemjob.SystemJobService#11260' ACQ=-24s551ms (uid=1000 pid=1205 ws=WorkSource{10077 com.android.rkpdapp}) Suspend Blockers: size=5 PowerManagerService.Booting: ref count=0 [] PowerManagerService.WakeLocks: ref count=1 [unknown: (09-25 11:11:03.392)] PowerManagerService.Display: ref count=0 [] PowerManagerService.Broadcasts: ref count=0 [] PowerManagerService.WirelessChargerDetector: ref count=0 []