Develop Bugs

Suspend process cpu usage

after flashing android revolution HD 2.0.9 and the recommended radio Radio_12.28e.60.140f_26.04.02.17_M2_SF , i noticed more cpu usage by system process suspend , and its draining battery so far i've looked everywhere and couldnt get any helpful answer.
i installed after full wipe flash , cleaned everything possible but still i have toe same problem.
i faced this once when i applied the 1.72 OTA but it was resolved after factory resetting the phone twice (dunno why it didnt resolve after the 1st reset).
please any help from the experts is much much appreciated. thx

Have you reset battery stats?
Sent from my HTC Desire HD using XDA App

i did wipe batterystats with CWM recovery , or u mean manual batterystats.bin delete ? will it make any difference ?

Solved
Im sharing my humble experience with battery and cpu usage in this rom , well suspend process and battery/CPU usage went normal now thank god, i was getting paranoid about it. (used to be around 10%-30% usage on idle and draining battery).
What i did was charging the phone full to 100% till battery monitor widget stopped recording charges,then i wiped battery stats using CWM recovery. so after a few hours of monitoring i noticed idle cpu usage is around 1%-3% no more
battery drain is around 1%-2% per hour now.
I do still have 3D gallery and htcsense account active.
ROM : Android revolution HD 2.0.9 (2.2.1 based)
Radio : Radio_12.28e.60.140f_26.04.02.17_M2_SF
SetCPU 245-1228 ondemand governor , no profiles.
Wifi + mobile network + gps active + autosync + 4 email accounts syncing
Using many apps and widgets syncing at 1hr-4hrs interval.
I recommend anyone facing same problems to do as i did.

Data causing High Android OS Usage

Hi, i am suffering from massive battery drain on my gnex, i have noticed that android os uses approx 50% of my battery, which almost making my phone unusable. I have noticed today that when i switch my data off, i dont lose any battery life compared to when i leave it on and the percentage for android os reduces significantly. i am currently using franco's kernal and before that leankernal and suffered the same issue on both, i have also tried opening the camera after reboot which someone suggested but it doesnt work for me, does anyone else have the same issue and is there a fix to the issue as i would like to have data on.
Thank you

Also check data usage and disable background data of app that continues to update. This will also extend battery life.
Sent from my Galaxy Nexus using XDA App

kcharng said:
Also check data usage and disable background data of app that continues to update. This will also extend battery life.
Sent from my Galaxy Nexus using XDA App
Click to expand...
Click to collapse
I have checked the data usage and Android OS is using 775KB of data, so when data is on it must be keeping it awake which uses more battery

using juicedefender may help you it has very good radio controls that will turn off or on your wifi and data connections depending if you device is on or in sleep mode.
Also for your battery is the OS just showing 50% of the battery usage in the bat stats section ? If so that is NOT 50% of your battery that it has used. that simply means that of the percentage of USED battery the OS has used 50% of that. if your battery is at 50% and your OS in bat stats says 50% it has actually used only 25% of your actual battery.
OS is normally near the top of the bat stat list alongside the screen. unless you are playing games.
its normal

Star here:
http://code.google.com/p/android/issues/detail?id=22878
This has been reported to Google.

Goat_For_Sale said:
using juicedefender may help you it has very good radio controls that will turn off or on your wifi and data connections depending if you device is on or in sleep mode.
Also for your battery is the OS just showing 50% of the battery usage in the bat stats section ? If so that is NOT 50% of your battery that it has used. that simply means that of the percentage of USED battery the OS has used 50% of that. if your battery is at 50% and your OS in bat stats says 50% it has actually used only 25% of your actual battery.
OS is normally near the top of the bat stat list alongside the screen. unless you are playing games.
its normal
Click to expand...
Click to collapse
Yesterday i let my gnex battery die and android os almost used 50% with 3% battery remaining, understand where you are coming from, but i have explored the issue further and battery drain is significantly higher when connected to 3g, i will upload a screen shot soon to demonstrate the issue

abz54 said:
Hi, i am suffering from massive battery drain on my gnex, i have noticed that android os uses approx 50% of my battery, which almost making my phone unusable. I have noticed today that when i switch my data off, i dont lose any battery life compared to when i leave it on and the percentage for android os reduces significantly. i am currently using franco's kernal and before that leankernal and suffered the same issue on both, i have also tried opening the camera after reboot which someone suggested but it doesnt work for me, does anyone else have the same issue and is there a fix to the issue as i would like to have data on.
Thank you
Click to expand...
Click to collapse
I faced the same problem, issue was somewhat with auto backup of data, sync of app data & people details in google account,
BUT the main culprit in my case was uTorrent application.
Even though there was no torrent added to it, i didn't even opened it,
it was using 1GB data daily on WiFi and in data usage it was coming under Android OS usage. I uninstalled it, everything went back to normal.
So try to look for such apps which eat up your data in background, it may not be an error of android OS as such.
Hope this helps, Press THANKS if it did help you
Enjoy

standby wifi battery consumption

According to you it is normal that night the note 2 get to consume 14 % of battery standby time leaving the wifi active?
I sucks on average 2% for hour ... after 7 hours approximately 14%
I tried everything, I hibernated greenify almost everything (apart from whatsapp), I turned off sync but the result always the same ....

mysterionTM said:
According to you it is normal that night the note 2 get to consume 14 % of battery standby time leaving the wifi active?
I sucks on average 2% for hour ... after 7 hours approximately 14%
I tried everything, I hibernated greenify almost everything (apart from whatsapp), I turned off sync but the result always the same ....
Click to expand...
Click to collapse
Go intoWwifi setting, press menu button and select advanced settings. Play around with those options. I assume you're on Sammy 4.3 ROM?
KEEP WIFI ON DURING SLEEP = NO!
SCANNING ALWAYS AVAILABLE = NO!
Tun off wifi b4 u go to sleep always works too. Us Wakelock detector or Better Battery Stats apps to check on rogue processed too.
Good luck

tweeny80 said:
Go intoWwifi setting, press menu button and select advanced settings. Play around with those options. I assume you're on Sammy 4.3 ROM?
KEEP WIFI ON DURING SLEEP = NO!
SCANNING ALWAYS AVAILABLE = NO!
Tun off wifi b4 u go to sleep always works too. Us Wakelock detector or Better Battery Stats apps to check on rogue processed too.
Good luck
Click to expand...
Click to collapse
I'm on 4.1.2
For the app I checked and it seems no. ...I think it is due only to the wifi
Do you think it is normal that consumes 2% for each hour battery only for wifi active?
And 14% on the night, after 7 hours ago

Kernel (Android OS) battery usage very high

Hey Zenfoners
Happy with my phone but I have a problem with battery usage.
I'm using GSam Battery Monitor and Kernel (Android OS) under App Usage seems very high.
For example today the phone has used 26% in 5h 45m with 30 minutes of screen on time. Screen usage shows 18%
But App Usage is 56% and 48% of this is Kernel (Android OS). CPU usage for Kernel (Android OS) is 4h 10m. And the phone has only been on for 5h45m.
I can't check what is keeping wake lock because I don't have root.
On idle using wifi it is using 2-3% per hour when my LG G3 and Note 3 use about 1.5% per hour on idle.
Anyone else have this problem?

I'm glad I found your post. Highly frustrating with my zenfone 2. Massive battery drain with google apps and Android OS. Yesterday or it was Google Backup Transport, today it's some other google stuff. Would love to know how to properly debug this stuff. I tried disabling most of pre-loaded Asus stuff but who knows what's causing battery drain. I can lose over 1% of battery PER MINUTE.

I just did a factory reset and added these apps:
GSAM Battery
Dolphin browser
LINE Messenger
Touchpad keyboard
Google Inbox
Google Translate
Google Keep
Android OS is still being crazy. Amazing that you can buy a brand new phone and it fails almost out of the box, and it seems the OS developer is at fault. No wonder people are switching to iPhone!
Sent from my ASUS_Z008D using XDA Free mobile app

So I installed a system update adorable through the menu which seems to be helping now. Android OS still seems the biggest battery drain but at least the drain isn't outrageous like it was before. There's a discussion about the fix on reddit about it:
m.reddit.com/r/zenfone2/comments/334hkc/battery_issue_android_os_eats_a_lot_of_juice_when/
Sent from my ASUS_Z008D using XDA Free mobile app

Were you rooted before? For the 1st "Battery Used by App" screenshot?
I've not been rooted so on the latest s/w update. Haven't seen behaviour like this on any of my recent devices. Terrible battery usage when idle, and all my Google settings (location, backup, etc) are the same.

Well i almost get at 100% of battery status of battery life almost 3 days.
Firmware : 2.15.40.13 Pre-rooted system.img by Shakalaca
Xposed module for ZF2 installed + Greenify (Donate) app
Basically i geenifed all system apps {some you cant greenify) including power saver app which is build in + normall apps.
I will add SS when i will charge battery to 100%.
I cant understand why people gettin device discharging after 6 hours etc.
Follow my guide : http://forum.xda-developers.com/zenfone2/help/how-to-upgrade-cn-version-to-ww-t3101556 to update to the latest WW OTA
Xposed : Here

I'm on the latest WW firmware but I shouldn't have to root, greenify etc. Didn't do it on my Note 3/HTC One/LG G3. What's the point in having 4GB of RAM if you're flushing it every few minutes. I do have location settings and history on, as they were with previous phones, but everything else is very conservative. Zenfone 2 is the only one that shows crazy Android OS usage with same apps and same sync/backup/location etc settings. All on Android 5.0 too!

kazprotos said:
I'm on the latest WW firmware but I shouldn't have to root, greenify etc. Didn't do it on my Note 3/HTC One/LG G3. What's the point in having 4GB of RAM if you're flushing it every few minutes. I do have location settings and history on, as they were with previous phones, but everything else is very conservative. Zenfone 2 is the only one that shows crazy Android OS usage with same apps and same sync/backup/location etc settings. All on Android 5.0 too!
Click to expand...
Click to collapse
How you can compare different phones according to the battery life if they were made in different technology and they using Snapdragons not Intel components.
Thats wrong mate
If you moaning about battery life in ZF2 you should compare it with diff zenfones ( ZF5,ZF6 etc.) or other Intel based devices

Note 3 was an Exynos.
So Intel = still bad then

I haven't rooted or anything. Battery life is now acceptable but Android OS is still near the top, but nothing crazy like it was before the system update. Does your build number match mine? I have the TW phone, so I assume TW software.
Battery graph shows almost continuous usage with screen almost always on.
Sent from my ASUS_Z008D using XDA Free mobile app

psommerfeld said:
I haven't rooted or anything. Battery life is now acceptable but Android OS is still near the top, but nothing crazy like it was before the system update. Does your build number match mine? I have the TW phone, so I assume TW software.
Battery graph shows almost continuous usage with screen almost always on.
Sent from my ASUS_Z008D using XDA Free mobile app
Click to expand...
Click to collapse
Same build number except for ASUS_Z00A (1.8 ghz 4gb RAM) model.

Well ROOT + XPOSED + GREENIFY = 8 Days show battery )
From 23:00 at previous day i left phone with turned on WiFi . Overnight for 9h it drained 4% of the battery so chart is correct.

I fix my battery drain in this way:
Install all OTA updates
Factory Reset.
Reinstall All.
Battery drain seems to be only if you install an OTA without Factory Reset and with all apps already installed.
It take several hours to reinstall all ... but it works !
No more battery drain here !

I done a wipe cache instead of factory reset. You reckon it's the same thing or would I get better results v so th reset? Currently getting 5-6 hours sot with 2.3ghz 4g2g ram. Thanks

aferende said:
I fix my battery drain in this way:
Install all OTA updates
Factory Reset.
Reinstall All.
...
No more battery drain here !
Click to expand...
Click to collapse
I hope you're right!
I did factory reset, install OTA update, and reinstall all. Had one good day. Today, I've lost 6% in about 30 minutes. Even more amusing, the biggest consumer is Wi-Fi ... Which isn't even turned on! Crazy stuff.
I think this'll be the 4th time re-installing stuff now. Good times!
Sent from my ASUS_Z008D using XDA Free mobile app
Sent from my ASUS_Z008D using XDA Free mobile app

I think that dont help, i do that 2 time with out change battery drain. I saw also that deepsleep is very low. Most of the time it rum at 500mhz and need sometimes more then an hour to go to deepsleep.

vivix said:
Well ROOT + XPOSED + GREENIFY = 8 Days show battery )
From 23:00 at previous day i left phone with turned on WiFi . Overnight for 9h it drained 4% of the battery so chart is correct.
Click to expand...
Click to collapse
Well mine last about 15 hours then down. With same setting

Hey there all. If you're still having high android os usage it could be due to calendar storage constantly waking up your phone, check out my post in another thread -> http://forum.xda-developers.com/showpost.php?p=62730039&postcount=21

it is still lolippop 5.0???

Heavy Battery drain from Android System after upgrading to OOS 4.1.0

After upgrading to OOS 4.1.0 over OTA my Android System usage started to drain the battery. So i downloaded the full zip and did a complete clean flash of OOS 4.1.0. Even after that the Android System Usage is draining the battery. I'm attaching the screenshots. Any solutions to this ?

Clear Googleplay services cache and app data, then reboot.
Haven't tried it myself, though i have read it has helped many

anshmiester78900 said:
After upgrading to OOS 4.1.0 over OTA my Android System usage started to drain the battery. So i downloaded the full zip and did a complete clean flash of OOS 4.1.0. Even after that the Android System Usage is draining the battery. I'm attaching the screenshots. Any solutions to this ?
Click to expand...
Click to collapse
Settings / apps / Google play services / manage data ( clear data )
Settings / backup and reset ( turn off backup )
Settings / battery , click the three dots at the top and check the power hungry apps and enable aggressive doze and whilst in aggressive doze settings turn on nearly all of the optimised apps just don't optimise things like phone , messenger , WhatsApp if you use them regularly ...
Hope this helps and if it does then please hit that thumbs up button it means the world to me....

are you rooted ?

This is probably not because of Google Play Services.
Can you share screenshot of "Android OS" battery usage as well? I bet it has keep awake time over 1.5hrs.

I also have a problem with my OP3 draining battery after android N
My battery is pretty much done in 12 hours with next to no screen on time...
http://cloud.tapatalk.com/s/58dd7d293b65c/Screenshot_20170330-140231.png?
http://cloud.tapatalk.com/s/58dd7dbb8c9fb/Screenshot_20170330-140220.png?
I've tried the steps above but doesn't change the battery life at all
Sent from my ONEPLUS A3000 using Tapatalk

Snap. I have the same problem here too. Only thing I haven't tried was switching backup off, but I really don't want to live without it, it's just too useful now.

My battery drains even when the phones not in use. I had great battery time at the start (6 months ago) but now it hardly lasts for 20 hours with normal use. Wonder what they did with the OS or maybe its cheap manufacturing

**** OOS... I littery Switched to VertexOS for this reason and I don't see a difference other then Vertex being way more peformant and batfery friendly.

Yeah, happens me every week after a clean install despite all the play services data delete, cache, etc. Always ends up like this. Hopes it gets fixed, Nougat hasn't been going well on our OP3

Me too, heavy draining even when I don't use my phone ?

Did someone already seen this?
Huge wake-up alarm from Android with job.delay and job.deadline :s