Stopping kernel WakeLocks, during mobile hotspot - Samsung Galaxy J2 Guides, News, & Discussion

This shooting up of android os process battery usage is only after the root.
Google play services and other GAPPS have already been removed from the whitelist of power saving. I have been using my mobile hostpot for about 6 hours and 6 hours standby after it and this is the usage through Better Battery Stats app, from full charge to 39%.
Samsung smart manager shows android OS as the major culprit.
Also total computed power usage doesn't amount to the decrease in battery power. Total power usage is amounting ~ 1000 mAh but battery is of 2600 mAh, this is happening after root and I have fully drained and charged while switched off to full to calibrate the battery, but same.
Earlier real usage time was equal to what is now but estimated usage time was just double when all GAPPS and gms were running in background.
I am posting the screenshots. Can somebody let me know the reason for this and how can I disable the wakelock visible in the Better Battery Stats screenshot?

Does anybody have an idea of reducing Mobile Radio power reported by android OS process?

Related

Wakelocks

Any ideas on managing the wakelocks on Android and specifically on the Infinity?
I've checked the option of switching off WiFi with screen-off, but in my battery usage stats I still see that over 10% of battery is consumed by Google Services with 672 wake locks & device waked 77 times (WiFi drain itself is 13,5%, so quite OK). This is what GSam Battery Monitor shows. Android stock battery management (in Settings) shows 51% drain by Google Services and 26% by WiFi (but I believe these stats are wrong most of the time or just measure a different thing, as they show tablet inactive with 2% bar and it has been inactive most of the time actually).
I have google auto-sync on and I need it, but I still think this is too high a number. I don't get 672 e-mails daily, so these shouldn't be PUSH notifications etc.
I'm not sure if I'm the only one seeing these high numbers there?
Have you tried CPUspy for finding out how much time in deep sleep you have?
Better Battery Stats is also a needed tool to find more about wakelocks
Sent from my GT-N7000 using xda app-developers app
Yes, I'm looking at it from time to time, but thanks for this. I had some issues when I started this thread, after wipe and re-flashing new firmware it seems OK in the stats: Deep Sleep 44%, 102MHZ 16%, 1500MHz 24% (running on balanced mode, interactive governor).
I'm still curious to get to know how to manage wakelocks under Android from (low) system level however.

[Q] About Battery Life

Hi,
I have a question regarding battery life of the OPO. I'm still not sure whether I have a defective battery, or some apps drains my battery like crazy (or both?). I hope you can help me with this.
In the first 2 weeks since I got it, I use my OPO for mid to heavy activities (a lot of Whatsapp, Youtube, streaming music, etc). I always start the day with 100% battery and I thought it was normal to see the battery drops to at least 20% at the end of the day. To be honest, I didn't check the battery stats in Settings even once in this time frame, and due to my heavy usage, once again I thought this was normal.
Until one night I decided to plug the charger earlier than usual, unplug it around 11pm (w/ 100% battery), then I fell asleep. I was shocked the next morning (8am) when I saw the battery has decreased to 65% with no activities whatsoever. I check the battery usage in Settings and then saw Google Play Services (GPservice) at the top of the list with 45% usage, with "keep awake" time almost identical to total time on battery. I did some research and found some advice including 1) denying GPservice abilities to "keep awake" and "wake up" via privacy guard (from this thread http://forum.xda-developers.com/oneplus-one/general/guide-google-play-services-battery-t2832525), 2) turn off location, 3) turn off sync, but none of them seems the solution to my problem. Since then, I always check the battery usage and reset it, to see if GPservice still at the top. Sadly it still there. After I reset the stats, go to sleep directly and check it about 1 hour later, GPservice uses 40% - 60% of the battery usage, draining about 6% battery / hour.
With screen on a few minutes, it easily drops to 5th or 6th place with ~7% usage, with screen and main apps I use on the 1st and 2nd place. When I googled about this using Firefox, that's when I start worrying about something else, the battery itself. With wi-fi and low brightness (less than >20% if I convert it from the slide bar), browsing with Firefox decrease the battery 1% in 2-3 minutes, no or low usage drains 1% in about 5-6 minutes. In contrast, charging increase the battery 1% in 1 minute. Is that normal? IDK, usually bad battery increasing faster when charging and decrease significantly when in use.
Please help, especially about the excessive GPservice battery usage. And if it's possible, I prefer non-root solution for it. Thanks and sorry for my bad English.
OPO - stock rom (unrooted XNPH44S)
Google Play Services 6.7.76 (reverted back to 5.0.89 factory version but things pretty much the same)
cliffflip said:
Hi,
I have a question regarding battery life of the OPO. I'm still not sure whether I have a defective battery, or some apps drains my battery like crazy (or both?). I hope you can help me with this.
In the first 2 weeks since I got it, I use my OPO for mid to heavy activities (a lot of Whatsapp, Youtube, streaming music, etc). I always start the day with 100% battery and I thought it was normal to see the battery drops to at least 20% at the end of the day. To be honest, I didn't check the battery stats in Settings even once in this time frame, and due to my heavy usage, once again I thought this was normal.
Until one night I decided to plug the charger earlier than usual, unplug it around 11pm (w/ 100% battery), then I fell asleep. I was shocked the next morning (8am) when I saw the battery has decreased to 65% with no activities whatsoever. I check the battery usage in Settings and then saw Google Play Services (GPservice) at the top of the list with 45% usage, with "keep awake" time almost identical to total time on battery. I did some research and found some advice including 1) denying GPservice abilities to "keep awake" and "wake up" via privacy guard (from this thread http://forum.xda-developers.com/oneplus-one/general/guide-google-play-services-battery-t2832525), 2) turn off location, 3) turn off sync, but none of them seems the solution to my problem. Since then, I always check the battery usage and reset it, to see if GPservice still at the top. Sadly it still there. After I reset the stats, go to sleep directly and check it about 1 hour later, GPservice uses 40% - 60% of the battery usage, draining about 6% battery / hour.
With screen on a few minutes, it easily drops to 5th or 6th place with ~7% usage, with screen and main apps I use on the 1st and 2nd place. When I googled about this using Firefox, that's when I start worrying about something else, the battery itself. With wi-fi and low brightness (less than >20% if I convert it from the slide bar), browsing with Firefox decrease the battery 1% in 2-3 minutes, no or low usage drains 1% in about 5-6 minutes. In contrast, charging increase the battery 1% in 1 minute. Is that normal? IDK, usually bad battery increasing faster when charging and decrease significantly when in use.
Please help, especially about the excessive GPservice battery usage. And if it's possible, I prefer non-root solution for it. Thanks and sorry for my bad English.
OPO - stock rom (unrooted XNPH44S)
Google Play Services 6.7.76 (reverted back to 5.0.89 factory version but things pretty much the same)
Click to expand...
Click to collapse
Definitely sounds like somethings not right, what apps do you have that access or could potentially access your location? If you're still not having any luck, as a last resort you could try a fresh install of CM11S and install your apps one by one to see if you can determine if any are responsible for sucking battery.
Give the below app a try:
https://play.google.com/store/apps/details?id=com.playfulgeeks.gservicefix&hl=en_GB
Install Gsam to see if you can gain any more insight into whats causing battery drain.
https://play.google.com/store/apps/details?id=com.gsamlabs.bbm
cliffflip said:
Hi,
Until one night I decided to plug the charger earlier than usual, unplug it around 11pm (w/ 100% battery), then I fell asleep. I was shocked the next morning (8am) when I saw the battery has decreased to 65% with no activities whatsoever. I check the battery usage in Settings and then saw Google Play Services (GPservice) at the top of the list with 45% usage, with "keep awake" time almost identical to total time on battery.
Click to expand...
Click to collapse
did you try to use this App: http://forum.xda-developers.com/showthread.php?t=1179809
there you can see which app prevents your phone from going to sleep (partial Wakelocks)
gsmyth said:
Definitely sounds like somethings not right, what apps do you have that access or could potentially access your location? If you're still not having any luck, as a last resort you could try a fresh install of CM11S and install your apps one by one to see if you can determine if any are responsible for sucking battery.
Give the below app a try:
https://play.google.com/store/apps/details?id=com.playfulgeeks.gservicefix&hl=en_GB
Install Gsam to see if you can gain any more insight into whats causing battery drain.
https://play.google.com/store/apps/details?id=com.gsamlabs.bbm
Click to expand...
Click to collapse
Maps, Google Fit, Google Now, among other things.
CMIIW but I read somewhere that GServicefix does the same like privacy guard, denying some service to keep awake, wake up, etc.
So I installed Gsam and run it about 1 hour. Interestingly in there, Kernel (Android OS) is on the top the % list with 60% usage (mostly phone in idle/sleep). When I switch sorting to Kernel Wakelocks, it shows event0-798 & event2-798 as the top 2 wakelocks with around 7000 wakelocks. I'll update in few hours, thanks.
drcyber said:
did you try to use this App: http://forum.xda-developers.com/showthread.php?t=1179809
there you can see which app prevents your phone from going to sleep (partial Wakelocks)
Click to expand...
Click to collapse
From what I read on the Play Store description, Kitkat and above requires root?
cliffflip said:
Maps, Google Fit, Google Now, among other things.
So I installed Gsam and run it about 1 hour. Interestingly in there, Kernel (Android OS) is on the top the % list with 60% usage (mostly phone in idle/sleep). When I switch sorting to Kernel Wakelocks, it shows event0-798 & event2-798 as the top 2 wakelocks with around 7000 wakelocks. I'll update in few hours, thanks.
Click to expand...
Click to collapse
Please post screenshot of gsam
Try clear cache+dalvic cache in recovery
Hi, sorry for the late reply.
It seems reboot the phone a few times solves the problem. Battery usage now seems normal when idle, even with location & sync turned on.

Idle Battery Drain - Stock Kernel (Fixed) Required

Hi, I have E6653 on Build 32.4.A.1.54 7.1.1 Nougat...
I was not able to find any root method for this as in device status it says bootlocker unlock is not allowed.. anyway, I suspect phone while in idle is draining some batter and while it's on too. So is there any kernel for the same stock version which could fix that issue?? I heard the default kernel have battery drain issues as phone idle is taking 23% of battery or so etc while screen 24% and cell standby 11%....
Is this normal then 10% battery drops after 2 hours without using phone ?
I will be thankful. Regards
No, check your installed apps for battery consumption.
Check synchronize time of email accounts etc, make this less synchronize.
Calibrate your battery, give it 2- 3 days to settle again.
ht t ps://
play.google.com/store/apps/details?id=com.newagetools.batcalibra
Disable Bluetooth when not nessary.
Disable adjustible brightness of screen in settings.
Use greenify or Kaspersky battery saver.

Oneplus5 battery calliberation problem

Problem started from few days ago, my phone started draining battery percentage from 100 % to 1% fast and sticks in 1% for about 2 to 3 hours, if it's software problem how to fix this how to fix this, should I root my phone or what, developers suggest me solution
How battery gets drained mainly depends on how heavy phone's CPU is stressed: a CPU processes softwares' ( Android OS itself included ) intructions send to.
Look also inside here:
Relationship between CPU Usage and Battery Usage
I'm comparing the resource consumption of two Android Apps. App A uses accelerometer App B uses both accelerometer and gyroscope After reading these sensors, these apps does some processing o...
android.stackexchange.com

Question Best Battery Stats app

OneUI built-in Device Care app doesn't show full details of what is draining battery. It fortunately shows the Screen ON Time (SOT) though.
My phone's battery drains badly on standby. It drains anywhere between 1.5% to 2% per hour on standby if I leave all radios ON. If I turn OFF WiFi, Mobile Data, Bluetooth, Location, etc. then the battery drain reduces to 0.5% per hour. There is no unusual drain when I'm using the phone. If I'm continuously using the phone, I can get 6 to 7 hours SOT.
The built-in battery stats doesn't provide full information on what is draining battery, and how much. For example, it doesn't show system functions like Android System, Android OS, Display, Wakelocks, etc. It only shows 3rd party apps installed.
If I add the % consumption of each app shown in the list, it won't even add up to 50% of actual consumption. If you see the attachment, the sum of the individual consumption adds up to about 20% only. My battery is at 59%. So I have no idea about what used the remaining 21% (standby drain).
Assuming that all details are available in the system, is there an app that can simply read this info and show it on screen? I don't want battery 'monitor' apps that run in the background.
I'm interested to know if there is an app that would simply read this information and display it when launched, and won't run in the background when closed.​
Thanks.
Gsam battery monitor, better battery stats or Battery guru. But i think that they all need to keep a background service, which doesn't cause any noticeable battery drain though
TheMystic said:
OneUI built-in Device Care app doesn't show full details of what is draining battery. It fortunately shows the Screen ON Time (SOT) though.
My phone's battery drains badly on standby. It drains anywhere between 1.5% to 2% per hour on standby if I leave all radios ON. If I turn OFF WiFi, Mobile Data, Bluetooth, Location, etc. then the battery drain reduces to 0.5% per hour. There is no unusual drain when I'm using the phone. If I'm continuously using the phone, I can get 6 to 7 hours SOT.
The built-in battery stats doesn't provide full information on what is draining battery, and how much. For example, it doesn't show system functions like Android System, Android OS, Display, Google Play Services, Wakelocks,, etc.
Assuming that all details are available in the system, is there an app that can simply read this info and show it on screen? I don't want battery 'monitor' apps that run in the background.
I'm interested to know if there is an app that would simply read this information and display it when launched, and won't run in the background when closed.​
Thanks.
Click to expand...
Click to collapse
blackhawk_LA said:
i think that they all need to keep a background service,
Click to expand...
Click to collapse
Yes, they do.
blackhawk_LA said:
which doesn't cause any noticeable battery drain though
Click to expand...
Click to collapse
I seriously doubt this. It is just that they don't show up in the stats.
From my experience, there was no difference in idle drain battery usage with and without any of these apps. Checked for some days, not only a few hours.

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