While trying to diagnose my marginal to moderate battery life on my DNA, I realized that the battery level was dropping significantly while idle; anywhere from 3-6% or more per hour. After installing Betterbatterystats and monitoring/testing for a couple of days, one of the main culprits appears to be a mysterious kernel wakelock identified as "msm_hsic_host". There have been postings in the Nexus 4 forums about the same thing, as well. It seems to be a mystery because no one seems to know what is causing it or what it is related to other than these two Qualcomm S4pro phones both seem affected by it.
The msm_hsic_host KWL seems to reduce deep sleep from anywhere between 10 to 30%. No solutions or information have turned up in the Nexus 4 forums yet, unfortunately. Anyone have any ideas or more information? Below is a screenshot from BBS demonstrating this problem. Even though the time period isn't terribly long, it is really compounded at night, keeping the phone awake anywhere from 1-4 hours over a 6-8 hour idle period.
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I doubt that is the real reason.
Mine was dropping 8% over 6 hours while idle. it is in Wifi environment, not bad 3G/4G of course.
8% over 6 hours is acceptable to me. And my kernel wakelock for that entry is even higher than yours. 18%.
I don't think it is the culprit.
Did you check the partial wakelock? What is the biggest entry there? Is it above 3%?
I've been having problems as well and found that mediaserver and adaway for some reason were eating away at my battery at about the same rate as your phone. What I did to fix it was install rescan media and just uninstall adaway and use adblock plus instead. Msm_hsic_host is still the highest on my kernel wakelock, but only at 2.2% now.
jiwengang said:
I doubt that is the real reason.
Mine was dropping 8% over 6 hours while idle. it is in Wifi environment, not bad 3G/4G of course.
8% over 6 hours is acceptable to me. And my kernel wakelock for that entry is even higher than yours. 18%.
I don't think it is the culprit.
Did you check the partial wakelock? What is the biggest entry there? Is it above 3%?
Click to expand...
Click to collapse
After unlocking the boot-loader last night - which factory resets the phone - I am getting upwards of 63.4% of my wake time from msm_hsic_host, with total awake time at 99.1% over a 1.5 hour period. So I'm not sure what's happening. It's possible that the kernel is still settling down some as it is prone to do after a factory reset or new install. Will have to experiment more.
My partial wakelocks are slightly higher than I would like, but still reasonable, and nowhere near the number of the KWLs.
I am having this same exact issue with my dna.
Number 1 for me as well. All stock with nova launcher.
Very good!
That issue is fixed in Faux123's N4 kernel, and my DNA kernel.
D
.
No way around it if you aren't rooted?
Qualcomm strikes again. You are experiencing what us N4 users are getting too. This phone stays awake too much of the time. Qualcomm needs to update their drivers or something. Any other SoC sleeps much more than this one it seems. Maybe it's the early adopter curse. All other use of these S4 pro equipped phones seems to point to great battery life. It's a great gaming SoC but what I wouldn't give for the Exynos 5 dual to be put into a phone that doesn't have touchwiz. That baby sips battery and really has some power despite being "only" a dual core.
This is my top or second most used process draining my battery as well. I use GSam battery app and under the "kernel wakelock" it shows up as 155 wake locks after being unplugged for 8 hours. Is this a lot? I have no idea what wakelock and kernels are, I just know this is in the top for battery usage.
spinkick said:
No way around it if you aren't rooted?
Click to expand...
Click to collapse
Not that has been reported. I turned off most of the Latitude stuff and that seemed to help a little. Also, in the N4 forum, we seem to have corroborated that noisy wifi environments with lots of clients on the AP seem to cause a lot of wlan_rx_wake wakelocks.
Simple explanation
I am an N4 user, both devices use the APQ8064 qualcomm chip (note not an msm chip) APQ8064 DOESNT have a built in modem, the modem is connected via USBOTG and is read as a USB device (thats the wakelock there its OTG modem
Cubed Kernel
If I'm not mistaken, I think the Cubed kernel addressed this issue.
I'm stock and locked, had a misbehaving app (OpenSignalMaps) that would bring me down 40% overnight. Uninstalled that and now am 1% per hour.
Related
I was thinking of rooting my phone and installing bionix fusion after getting sick of dealing with the battery problems. However, I am concerned about two main things and I haven't seen the exact same thing asked, maybe because they are obvious though =
I read about passwords being stored in cleartext if it's rooted from androidcentral a while ago. I only really use gmail for e-mail, is this a nonissue for me then?
Does the fusion rom overclock the processor by default? I'd rather leave the processor at default speed.
you can dl fusion without overclock. or with overclock and just install set cpu and scale down to 1ghz
Great battery life is not just a matter of the rom you are using. You can be running the most battery friendly rom on the planet but if you are a heavy user, have twitter, facebook, email updates running all the time, and/or heaven forbid playing Angry Birds for hours at a time, you can kill the battery in a few hours.
This screenshot was taken tonight when I got down to 15% battery life. I use gmail, touchdown, handscent, and make phone calls.
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Running Bionix Fusion
KerryG said:
Great battery life is not just a matter of the rom you are using. You can be running the most battery friendly rom on the planet but if you are a heavy user, have twitter, facebook, email updates running all the time, and/or heaven forbid playing Angry Birds for hours at a time, you can kill the battery in a few hours.
This screenshot was taken tonight when I got down to 15% battery life. I use gmail, touchdown, handscent, and make phone calls.
Running Bionix Fusion
Click to expand...
Click to collapse
Just out of curiosity hour foist you get your dislpay count so low
Times never wasted when your getting waisted
for me, I'm loosing my battery from...doing nothing! It's annoying the crap out of me. I've been obsessively closing apps with the task manager and services as well with mixed results. Most of the time I'm still loosing 4-5% per hour when the phone is idling. So, yes, switching should help me.
Anyone know about the security issue from the first post?
A factory reset might help just as much as another rom. You might also have a bad battery. If your phone is actually doing nothing, then its doing something that you dont know about. I was certainly doing much better than 5% per hour while it was idle.
KerryG said:
A factory reset might help just as much as another rom. You might also have a bad battery. If your phone is actually doing nothing, then its doing something that you dont know about. I was certainly doing much better than 5% per hour while it was idle.
Click to expand...
Click to collapse
Yeah I'm running bionix final with core 1.2i was lucky enough to have a phone that can handle oc I've had a few roms on this device but my battery life sucks idk I think I'm gonna get a new battery and then see the life I expect thanks
Times never wasted when your getting waisted
The Google creds are safe, but others might be exploited via sqlite.
Here is the more detailed post from androidcentral
http://forum.androidcentral.com/hacking/35470-aware-clear-text-passwords-database-files.html
Thanks! exactly what I wanted to know.
It depends on what is draining your battery. Lately my battery life is hit and miss. Sometimes I am getting 40hrs a charge and sometimes I am getting 25hrs a charge.
For me most of my battery is getting drained on Cell Standby. The past 2 days i have been getting 3-4% battery drain on standby.
I have Fusion 1.1. GREAT rom, but there is something happening to my cell radio. Fusion has JI2 modem installed. I tried flashing the JI6 and battery life varied from 2-3 of 3-4% battery drain. I just flashed back the JI2 modem end of last week. And i have been getting 2-3, 3-4 or 4-5% drain. Right now pinning it down is pretty frustrating. But I will find out the best combo for my phone eventually.
Hi guys
I am on Cognition 1.5.1 with Speedmod T40 and experiencing high Android OS usage which is chewing up my battery. The phone was pretty much on idle/light use and I do not have many applications installed - just basic ones like Facebook, Watchdog, betterbatterystats, battery monitor widget, imgur, Skype, Talkbox, Viber, Whatsapp.
I have also just calibrated the battery by charging full, calibrated with app and now discharging
Anyone able to help? Something is definitely going on and im unsure what it is. Please let me know if you require more screenshots
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Same here.. getting a 3% drop during a 2 hour sleep...and a 5% percent drop during a 30 min web browsing.... cant identify the source of the drain...using bbs... android os is the culprit.. i guess..... everything was fine with cognition till recently... help
AOS Bug has been a problem since Day 1 of SGS2 release.
Thought the android os bug had been sorted in 2.3.4
Definitely AOS - I dropped from 100% to 88% within 2 hours with minimal light usage to no idle.
Also I have turned off my WiFi policy to off when the screen is off, but it's still turned on in Battery Usage stats ?
Whats the solution here ? Try VR 2.5 with Ninphe 2.1.3 or speedmod ?
No problems with the battery consumption on KH3, the GPS kicks ass too.
Specs after 29hrs of usage:
How many minutes have Android OS been running per hour on your phone? Having 3-4 minutes of AOS CPU activity per hour is very normal and not a bug per se.
This will of course cause high percentage of total consumption in battery stats if you don't do anything else, but it will take many days before AOS itself drains the battery with 3-4 minutes of CPU per hour.
tjtj4444 said:
How many minutes have Android OS been running per hour on your phone? Having 3-4 minutes of AOS CPU activity per hour is very normal and not a bug per se.
This will of course cause high percentage of total consumption in battery stats if you don't do anything else, but it will take many days before AOS itself drains the battery with 3-4 minutes of CPU per hour.
Click to expand...
Click to collapse
I can't speak for the OP, but I'm having the same issue and my Android OS CPU activity is over 15 minutes an hour.
Mine drops atleast 10% an hour no matter what i do. Tried two batteries, roms and kernels. Settings, alsorts and still tge same results. Im not to clued up on the battery stats thing but i have apps using battery that aont running or even been ran and my os usage is also very high. It been in the mid 50s a few times.
Sent from my GT-I9100 using XDA Premium App
Same issue for me
Using Cognition 1.51 out of the box and battery is subject to continual drain. My Os usage history is 4 hours, over 1 day 10 hours ..much to high. I'm thinking about trying a wipe and reset and flash again to see what's up.
a full wipe and reflash rom i suppose.. and removed bloatwares
I'm still running on stock firmware and was affected dramatically by this bug. After upgrading to latest KI4 via KIES, this got even worse.
So I tried something. I disabled WLAN permanently (and only activate it if it is really needed) and removed my microSD card.
THAT did the trick! Don't know which one or if both help such a lot.
I had some mp3s for ring/sms tones on that card (in /media/notification) and Android silently moved apps to that SD (not the internal flash).
That means that Android somehow always needed to access the card (->Android OS), for playing tones (sms) or ringtones. Or even for loading icons in the menu from the SD.
When I removed the microSD card my battery lifetime instantly went up from 12-18h (Event / Suspend / Android OS Bug) to 3 days!
it's a kernel-bug
with the SiyahKernel v1.8 this bug should be fixed ... works for me ... 4% Android OS at the moment
There seems to be a lot of speculation and hype over the razr maxx battery.
Some people get 2 - 3 days, some only 12 hours.
I for one, get about 12 hours with moderate - heavy usage (ocxasionally).
As we all hope for we want that 17 hour /21 hour talk time motorola tells us.
I am using a Gsm model, so i would have expected a longer talk time than the 4G lte versions. It is a 3200mah battery (4G gets the 3300mah?)
I only get about 12 hours of continuous usage (5 hours off the 17 hour benchmark)
So im going to ask everyone that owns a razr maxx to screen shot their talk time.
Using the gsam battery monitor app which gives a good indication of how much talk time left based on calculations and usage.
My talk time, stand by and average time left is here:
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With cpuspy app; it is properly deep sleeping too and under locked to 300mhz on screen off:
1)What's everyone else's maxx battery life like? Please post screen shot
2) does your razr maxx battery read 3300mah or 3200mah? Mine reads 3200mah..
At the moment it's been 3 hours and it's - 8% already.. Only played Internet radio for 15 minutes which drained 2%
Sent from my XT910 using xda app-developers app
I'm finding it lasts just as long as my desire z, which had less than half the battery size! I get a day comfortably but that's not the 2 days comfortably I was expecting/hoping for.
Don't have a screenshot but on my last charge it was around 1 day 2hrs, screen on 2.5hrs, no wifi, gps/bluetooth off. Using gsam and cpuspy and all looks ok pretty much. Although, digging into gsam app sucker, I notice that kernel is always the highest and I also notice that the sensor useage (accelerometer/pressure) is always on roughly about the same as screen time but it has a LOT of wakelocks. Might try disabling that for a while.
But I feel I should be getting much longer than I do. I do have facebook but it's time on and wakeups don't suggest any abnormalites.
I see mention of some people finding out what size their battery was, how are they doing this? Battery monitor widget says 3200mA but is there another method people are using?
Also, I seem to lose roughly 5% an hour battery mostly idling, this seems far too much.
Screen shot 1st day had razr maxx. As a test I turned on absolutely everything I could, 4g, wifi, bluetooth, gps and maxed out screen brightness and managed to still squeeze out 16hours of battery life. The entire time I was listening to music, texting, surfing the web, watching video's while running a live wallpaper.
Myrmidon83 said:
I see mention of some people finding out what size their battery was, how are they doing this? Battery monitor widget says 3200mA but is there another method people are using?
Click to expand...
Click to collapse
adb shell cat /sys/class/power_supply/battery/charge_full_design
Ah, that reminds me that I need to install adb. Would the android terminal emulator provide this on a non rooted?
EDIT: Yes it works. Battery is 3200.
Sent from my XT910 using Tapatalk 2
Does anybody know of any actual tests/videos comparing the battery life of the S6/S6 Edge? I have seen this graph, and I believe one other graph that show conflicting results.
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How does the regular S6 get longer battery than the Edge when the Edge has a slightly larger (50 mAh) battery?
I'm coming from a S4 which barely lasts half a day, so I'm trying to justify if the price increase for the edge is worth it based on battery life alone. (I have seen both in store, and love the way the Edge looks, but if the regular S6 has a better battery life, I might just stick with it.)
I searched the forums to see if anything has been posted comparing the two but didn't come across anything.
The edge probably uses more resources for the edges. Also, I haven't come across anything saying the plastic oled uses more energy than standard oled.
not sure who made that graph, my s6e doesn't even get a third of my note 4's battery life.
Its rather bad, 100% 6am, 20% 5pm with next to no usage.
100% 11pm, 70% 6am.. pretty terrible
neonsector said:
not sure who made that graph, my s6e doesn't even get a third of my note 4's battery life.
Its rather bad, 100% 6am, 20% 5pm with next to no usage.
100% 11pm, 70% 6am.. pretty terrible
Click to expand...
Click to collapse
Wow... Coming from the lg g2 I was hoping this isn't the case.
Will have to monitor this phone over the next few months
neonsector said:
not sure who made that graph, my s6e doesn't even get a third of my note 4's battery life.
Its rather bad, 100% 6am, 20% 5pm with next to no usage.
100% 11pm, 70% 6am.. pretty terrible
Click to expand...
Click to collapse
Really that seems like something is draining your battery if next to no usage. Today will be my first full day with the Edge but I don't see me putting it down. lol I usually just put my phones on my wireless charger at times and if I need some juice quick I'll use fast charge. Such a think phone I wasn't expecting great battery life.
sweets55 said:
Really that seems like something is draining your battery if next to no usage. Today will be my first full day with the Edge but I don't see me putting it down. lol I usually just put my phones on my wireless charger at times and if I need some juice quick I'll use fast charge. Such a think phone I wasn't expecting great battery life.
Click to expand...
Click to collapse
Apparently there is a bug with Wifi (at least on T-Mobile) that is causing some serious standby drain. I turned off my Wifi and the battery seems to be much better for me today.
The other thing is apparently the information stream. Due to it keeping the digitizer active even when the screen is off, it causes more battery drain. I turned that off too, since I don't get much use out of it.
ForgottenGuardian said:
Apparently there is a bug with Wifi (at least on T-Mobile) that is causing some serious standby drain. I turned off my Wifi and the battery seems to be much better for me today.
The other thing is apparently the information stream. Due to it keeping the digitizer active even when the screen is off, it causes more battery drain. I turned that off too, since I don't get much use out of it.
Click to expand...
Click to collapse
I hope this is true. After 7 hours with only 14 minutes screen on time, my battery was down to 60%. I even disabled the edge features, hoping it would disable the always on capacitive sensors on the side.
Google services is always on top for me in the battery graph. Anyone else?
Sent from my SM-G925T using XDA Free mobile app
it turned out to be VoLTE, as soon as I disabled that, my batter life is incredible.
Some disable wifi calling as well. I am sure they will fix it in a future update
Running stock unrooted. Android 7....what's everyone getting for battery life. Mine sucks. Getting around 3 hours screen on time. Android OS is using as much as the screen is.
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Same thing here after updating. Android OS is currently at the top with 10% followed by Android System with 9% in my phone at the moment. System is draining more than the screen. Weird.
Same here. On DP5 battery life was better for me.
same for me, system and Android on top, weird.
What's the reported "Keep Awake" time for those processes? Right now, for me, is Screen on top with 10%, Android System and Android OS next with 8% each. However, the keep awake time is only 3m41s and 11s respectively. That doesn't look too bad, actually.
The OS requires almost a week to settle. Calm your tits.
Sent from my Nexus 6P using Tapatalk
akarol said:
The OS requires almost a week to settle. Calm your tits.
Click to expand...
Click to collapse
:crying:
I installed it last night and so far today I'm at 3% per hour after 9hr25min elapsed. This only has an hour of screen time but that includes about 20 HDR photos (which in MM would have KILLED my battery), BT and WiFi are both on continuously but not connected, GPS is on high accuracy, screen timeout at 1 min, several reboots cycles (trying to figure out how to wipe the cache), etc. In other words, I'm on track for a 30+ hour day, and I'm not doing one thing to try to conserve the battery. Granted there's not much SoT so far but still, I'm impressed. Even more so because tribal knowledge seems to think that the OS needs a few days to "settle down" before true battery life can be assessed. I'm not sure I really buy into that but if it is true, the battery endurance should be stunning...
Have been getting the same results in the Beta and now with final release having the same problem./ Battery life is no good. And doze doesn't seem to kick in even at night. Android os and Android System taking as much mah as the screen. Not good.
http://imgur.com/3jAqetI
http://imgur.com/a/9t5fF
http://imgur.com/a/EV0ry
Here's what mine's doing so far. Note that it seems to Doze more or less the instant the screen shuts off.
Same issue here, battery life isn't super impressive.
These don't have much meaning without context: How are you using them? How much SoT? Are all the radios on? Etc...
Did factory reset. See if it helps. I'll post after it, "settles in"
Doze seems to kick in, but I don't know whether made it more or less aggressive than before (I'm guessing less), where battery gains are now, and how they're spread out. On MM, I was getting the typical 2-3% drop every night. For the past three nights with N, the drop is 5-6%.
Received the device a few hours ago and updated to N.
All default settings, no additional app.
No 3G/lte as I don't have yet a nano sim.
Bt is on but not connected.
Positioning is on battery saving.
Screen brightness is at 33%.
After 40mn of web surfing with wifi, or playing with the menus I lost 6%.
I'm happy with that :good:
rchtk said:
Received the device a few hours ago and updated to N.
All default settings, no additional app.
No 3G/lte as I don't have yet a nano sim.
Bt is on but not connected.
Positioning is on battery saving.
Screen brightness is at 33%.
After 40mn of web surfing with wifi, or playing with the menus I lost 6%.
I'm happy with that :good:
Click to expand...
Click to collapse
Quick question how did you update so quickly if you just got it?
My second cycle but this time with Ninja Kernel and some kernel tweaks. With sync and location enabled the whole time. Lots of web browsing, video streaming, plus a few minutes of gaming and phone calls. It's not spectacular but not too terrible for me either.
Mine isn't bad. Updated from DP5 using OTA in TWRP.
Unencrypted, rooted, with EX kernel and some CPU profile.
shawn1482 said:
Quick question how did you update so quickly if you just got it?
Click to expand...
Click to collapse
I applied to google beta program and in less than a minute I got the notification on the phone
Getting about an hour less sot on nougat than m.
They seemed to have fixed the performance issues of m by sacrificing screen on battery life.