Hello everyone!
I don't know if this is posted in the right thread, but here we go!
I recently rooted my M8 and installed Cyanogenmod 12 (cm-12-20141216-UNOFFICIAL-m8). It runs smooth and I'm pleased overall. I have found some bugs here and there but that's to be expected at this stage. But the one thing that's bugging me is that the battery is getting drained by system process.
It says... Process: System - CPU load 50%
In settings - battery it says "Miscellaneous" at 60%
any ideas? I read some other people that runs the same build and they have 5-6 hours OST.
Ive tried with factory reset and reinstalled cyanogenmod but no luck.
I would appreciate some pointers.. thanks!
What screen-on time are you getting? Although, in any case battery life is often a function of how you individually use your phone, as well as network reception in your area (worse signal causes faster battery drain).
I don't know how CM12 is reporting battery usage (every ROM will report usage a bit differently). But seeing as aside from the screen, the CPU is doing all the work, I don't see this as being too unusual.
Related
Hi,
I installed Gummy 1.2.0 on my vibrant. The first day or two I was getting amazing battery life. For instance with light-medium use, 30% of the battery was gone in 12+ hours, I was amazed. When I was getting this type of battery life Android system was using about 6-7%.
I noticed that as time passed, the battery life started getting worse and worse. I noticed that the Android System was eating up more and more battery even when it was supposed to be in deep sleep. Now Android System is using almost 40%
Has anyone else had the same experience? Great battery life changing to mediocre battery life in a couple of days.
Please advise.
Thanks!!!
I suggest you get Betterbatterystats and that way you can see exactly what is causing the problem. It is available in the market, but there is a free version here in post 2. IIRC the AOS taking so much of your battery life is bc of some errant process that is constantly drawing/polling on the system and causing the dismally high % of use. Find the app, fix it and your problem will be solved.
Hello there.
I'm getting slightly increased battery drain on my touchpad, compared to the readings that I've done before.
Right now I'm getting between 45 and 55mA drain per hour and I have no idea what could be causing this. Previously my drain was around 30mA,even less. I have tried to wipe the rom and data, with a clean rom and battery monitor widget I'm getting the same results. Current rom: SGA's FnC, no clock, default governor.
The wifi isn't the issue, turning it off gives me 2-3mA decrease in drain, there is something else that's causing this.
Any ideas?
app related maybe
I have the same issue. I had CM9 builds around June/July that had standby drain of around 30mA, later builds increased to around 45mA which didn't change with CM10. I don't think it is app related, as even a fresh CM10 install with gapps reached 45mA for me.
Is there anybody how can confirm 30mA standby drain with a CM10 build? If so, it would be nice to compare the configuration to figure out where the difference comes from. 15mA difference doesn't sound like much but in reality it's about 2 days difference in standby lifetime.
he didnt specify which rom he was using, or his setup, but a lot of variables can cause more battery drain. certain apps can increase battery drain in standby. but personal experience is cm9 should be about 1% per hour. there has been lot of discussion in the rootzwiki forum about battery drain http://rootzwiki.com/topic/21871-rom-official-cyanogenmod-9-nightly-build-discussion/ can't help you with cm10 since i'm not going to use it until it has worked out more of the bugs.
It would have to be an app or background process causing it to not be as low as possible. I typically read 28-30mA when sleeping with CM9 and not much higher 31mA with CM10/AOKP.
Sadly, it appears that it's not ROM related, because I've done full data wipe with both stock latest CM9 and FnC. The only app I've installed is BMW to read the drain values.
16GB model and yes, I've started getting this issue around July or August too, previously my drain was around 30mA.
Hello all, I hope I'm posting in the right section.
I've been searching for info on the battery drain problem for some time now. I have used GSam and System Panel to find the culprit and observe it for a while and I think I see what is happening. Don't know if there is anything to be done but I'm hoping there is a fix out there.
Background:
Stock Verizon Samsung Galaxy S4, stock Rom on latest OTA update (screen shot attached)
One morning around Christmas time my phone drained the battery from full to 10% in about 5 hours. I had my phone in my pocket like every other day at work, I had noticed it was heating up as well. I got an error message at some point that morning about some kind of "Samsung Power Share" I had never heard of. Then I could not get the phone to charge unless powered off, and that very slowly; it was the "grey battery" problem. This problem persisted for several days and then turned intermittent then nearly back to normal, though never quite right.
What I've done:
Wipe cache, FDR, replaced USB charge port, replaced stock battery with Anker battery.
The new charge port dramatically improved recharge time and eliminated the grey battery error but I still have terrible battery life compared to earlier in this phone's life, in other words, compared to before the latest OTA which appears to be a disaster. Didn't notice any significant improvement with the new battery.
Here's what I've seen:
As soon as the battery drops below 50% the rate of discharge maxes out and this matches up almost exactly with the activity or CPU usage of the system process "krtccd." (See attached pics showing krtccd activity corresponding with increased battery drain below 50%). GSam shows the "Kernel Android OS" (in which is krtccd) using 50% of the battery where it used to be that the screen was the biggest drain, pic attached.
Is there any way to control "krtccd" as it seems to go rogue? Why does it only seem to go rogue when the battery gets below 50%?
This is a company owned phone so rooting is not an option unfortunately.
Thank you so much for any input you may have!
I apologize if this posted in the wrong part of the forum. I did do a lot of attaching for info on what the krtccd process does and why it changed so drastically with the last OTA update but I can't find much out there or in here. I don't have the option to root phone so am I such with this weird poor performance whenever the battery drops below 50%?
Thanks again, I appreciate any input you guys have.
As a follow-up, here is a screen shot from System Panel this morning showing that "krtccd" stopped activity as soon as the battery began to charge. I don't get it, it's like it spins full bore in the background sabotaging the battery for the last 50%.
BTW, the discharge last night (in my first set of screen shots) happened while the phone dat idle on my windowsill, don't think I even turned the screen on during that whole time as I was in discussion with a friend. It's weird...
Rooted Galaxy S4 (Sprint)
Same issue. Can anyone provide any information on what this process does?
Someone opened an issue report with android open source.
Issue 160689: KRTCCD Bug?
Battery Drain due to CPU spike with "Phone" processes: Has anyone seen this?
I've had my S4 since it was released in April 2013. I'm running the MDK bootloader and have been running CM 12.1 for quite some time. About a month or so ago I noticed occasional bad battery drain to the point my battery would only last about 6 hours with almost no usage. When this occurs I can open OS Monitor and see that one of the "Phone" processes is sucking CPU which drains the battery. The processes that suck the CPU are one of the following: SIM Toolkit, Phone/Messaging Storage or Messaging Service. I'll often see 2 or 3 instances running of the same process running taking 30%-50% of CPU usage each. I am able to use OS Monitor to kill the process without any ill effects and the battery drain stops until the process starts spiking the CPU again. This happens randomly about once every day or two and I can't identify what triggers the processes to start sucking CPU. So far I have clean flashed the latest version of CM 12.1, rolled back the modem from OF1 to NK2, have been rebooting each morning and have tried cycling to airplane mode when the CPU spike occurs. Nothing has helped as the CPU suck and battery drain continue. Has anyone seen this or have any advice?
I wanted to post a reply in case anyone else is having this issue. It turns out the battery drain is caused by Missed Calls. Each time a call is missed, a "Phone" process is spawned and the battery drain starts. I have gotten in the habit of immediately killing the process after a missed call. If you use OS Monitor you'll see the process (SIM Toolkit, Phone/Messaging Storage, etc.) and the CPU usage at the top using the most CPU. You'll see this process hogging the CPU and it never ever stops unless the process is killed. This may be an issue with CM 12.1 on the S4 but I'm not sure as I haven't tried any other ROM's.
Hey guys, I am using Accubattery to monitor my battery performance and I noticed that after the last software update the battery performance dropped significantly. On the previous version, my stats were roughly 9%/h screen on and 1,5%/h screen off. After the update, the screen on discharge jumped to 22,9%/h. I used to charge my phone once in 3 days, now I have to charge it every day. Also, I noticed that the phone was significantly warm while reading an ebook and drained the battery really fast.
Something is really off. Any idea how to report back to Realme?
Seriously, no one has a similar issue? I tried pretty much everything except for a full factory reset. I tried to turn off GPS, LTE, Wifi, and Bluetooth with negligible improvement in battery consumption. I froze and force shutdown Zepp app and Notify for Amazfit ( I bought a new Amazfit watch recently) - with no visible improvement. What helped - at least a little bit was Battery->Performance mode->No performance improvement. Smart performance mode causes huge battery drain and the phone gets significantly hot during normal usage - web browser, ebook. etc.
I checked if there is a misbehaving app - nope there is not. Checked for malware, just in case - no problem there either.
My theory is they somehow tweaked governor in an update and screwed up.
I get some weird data from AIDA and CPU monitor. It seems that the triple-core cluster is running at full-speed 2,42 GHz all the time. That would explain the battery drain.
Check this screenshot.
The latest update to Android 11 and Realme UI 2.0 seems to fix the high battery consumption, also the tri-core cluster frequencies are finally adjusted normally.
I just hope they didn´t introduce more bugs with the latest release