Database Develop

Weird CPU loads and system lag in 2.2 FroYo

I have been seeing odd periods of heavy cpu use and I am unable to pinpoint the reasons. systempanel is not showing any out of control apps, but sometimes shows prolonged heavy use of the cpu; often at 100% use. (also everytime I charge the device history shows 100% use the whole time, I do have dock mode active though) Often times when I see 100% load, the history shows it starting when I open systempanel, but systempanel is not showing heavy use according to its personal history chart. I contacted the dev and he is looking into it, but does not believe it is the app. The system my lag at these times, but does not become unresponsive. After a fresh reboot, systempanel seems to show normal cpu loads even when active and in the foreground, but after a time it shows 100% every time I open it. (and history shows the high use starts when I open the app, but sometimes the chart does show moderate heavy use around 50% before systempanel is even started, so I can not be sure if systempanel is the cause)
I have also been having odd slow downs and lag that a kill all command from a task manager will not fix, but a reboot does. (I am thinking this lag corresponds to random high cpu use, but because of the above unreliability of systempanel I can not know.
It seems to happen over time, like a memory leak but with cpu and system load.
Anyone else having this problem in FroYo?
Systempanel is the only app that I know of that has that level of detail about what is going on in the phone, so I can not check it against another app.

OK i was just curious and downloaded systempanel and looked at the cpu usage. First i have a uptime of 88 hours exactly. the cpu usage is between 277Mhz and 450Mhz. I'm also using Froyo and everythinds is stock (kernel, Rom).
SO maybe there is a app that isn't showing his cpu usage? i don't use any taskiller so i don't kill anything.

I have a task killer to kill any apps that go haywire. I found another app to check against systempanell it does not have logging but I can check current stats.

Guess I'm the only one?

Ok since installing a second active monitoring app, the weird cpu loads are gone; things seem normal. Both apps seem to show the same results. Though I still feel that the cpu load being at 100% the entire time the phone sits on the charger is unnecessary.
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Sent via the XDA Tapatalk App

I've had unusual cpu pegging (started a thread about it too). Four forced reboots so far.

britoso said:
I've had unusual cpu pegging (started a thread about it too). Four forced reboots so far.
Click to expand...
Click to collapse
You still got it? i think there has to be a faulty app not that people got this problem, you are the only 2 i heard from though.

commodoor said:
You still got it? i think there has to be a faulty app not that people got this problem, you are the only 2 i heard from though.
Click to expand...
Click to collapse
Yes, just today my gtalk froze with 100% cpu when switching to it. Had to force power off after waiting about 3 mins (power+vol down+trackball)

I am having the EXACT same problem, I was actually browsing through here to see if anyone else was getting it as well before i started my own thread...
it started yesterday actually and I am wondering if it is the new .0.4.2 launcher pro beta because i just put that on yesterday and i had no problems with .4.1
that is my speculation, can anyone confirm?

its probably not your launcher, I'm on ADW. Will try Launcher2 and see if it is better...

[Q] Read battery log after restart

I have an issue I'd like to debug, but I need some information to help myself:
I charge my SGS (JM1) in the evening, when it's 100% full I disconnect the charger and go to bed (23:30), phone switches to airplane mode at 24:00. When I get up 8h after, my phone is off and has absolutely no battery left.
This happens every now and then, IMHO there's no app causing this (haven't installed anything lately). I can't reproduce the issue.
How would I best debug this and try to find out what's causing the battery drain?
Can I still read the battery log after a restart?

What apps Di you have and what Firmware?
Sent from GT-I9000 Jpm OS kernel with z4mod

DamianGto said:
What apps Di you have and what Firmware?
Click to expand...
Click to collapse
Firmware JM1 (rooted)
Apps:
aContacts
Alchemie
aLogcat
AnDream
Angry Birds
APNDroid
AppsOrganizer
Asphalt 5
c:geo
CallTrack
Coloroid
Explorer
GC Tools
geniewidget
GeoHunter
GPS Test
handyCalc
ICD Auskunft
Jorte
K-9 Mail
Kitchen Timer
Meraki Wifi
N-TV
OpenSudoku
RTM
SGS Tools
Snowstorm
Solitaire
Stats
Terminal Emulator
Timeriffic
wetter.info
Xing

Don't see Amy bad apps.
You can.use sgs toolbox to see the battery usage is.
Some make the phone almost never go in powersave mode.
Sent from GT-I9000 Jpm OS kernel with z4mod

Thank you so far.
I looked at the battery usage stats and saw that bluetooth was enabled for more than 7 hours (although it was disconnected). That IMHO shouldn't have completely drained the battery though...

I am seeing the same problem recently; the battery drains out really quickly in no time even when there are no major apps running. Even the battery usage menu shows nothing major. During this time I have noticed that the phone gets really hot and the battery indicator app shows that the battery temperature as b/w 40-50 C (its around 25-35 C when there is no issue). During this time I can't even make calls or send/receive SMS!!! Seems that it just cannot get a network signal.
There were no such issues for the last couple of months. I can't imagine an app directly or indirectly causing this.

If an app keep the phone awake all.the time and use wifi/Bluetooth/gps it will drain the phone fast.
The only solution is to find out where the flaw is.
Personal i would backup the phone and do a complete wipe/ reset of the phone so it will be clean and like new. Then i would test to se if it drain the battery.
If it does then it is broken and need a.repair. Else i would start to intake the apps i need, but looking close what they do.
Sent from GT-I9000 Jpm OS kernel with z4mod

SGSI said:
During this time I have noticed that the phone gets really hot
Click to expand...
Click to collapse
Ex-act-ly the same for me!
I will disable all self-installed apps via pm disable and see what happens.
I'll then report back...

Have you installed any lagfixes recently? When I had voodoo lagfix on jg4 I would get at best 8 hours of stand by time. As soon as I flashed jpm I get 1% drain per hour
Sent from my GT-I9000 using XDA App

I have not installed any lagfixes, my phone is on stock JG4 firmware. The battery life is otherwise very good, only at times (very random) the battery starts draining from 100% to 0% in a matter of few hours.I use System panel to check if there is any app that is causing this, but it does not indicate anything like that.
The only thing that I can think of is that the phone for some reason looses network (I can't make a call and send/receive sms during this time) and keeps trying to reconnect without success and hence drains out the battery. Once I reboot the phone everything becomes fine and the battery usage becomes normal. Is there any way to find out that the phone is trying to connect to the mobile network and this is causing the battery to drain out?

Neither do I, never used any lagfix so far, I'm on stock JM1.
The only thing that I can think of is that the phone for some reason looses network and keeps trying to reconnect
Click to expand...
Click to collapse
That's possible but I don't know how to log this...
Gnarf, it just happend again. Before going to work it was all normal, now it's frozen.
I connected it to my computer, but WinXP recognized it as an unknown device.
ADB doesn't work, else I had pulled the logfiles.

maybe u should consider upgrading to JM7 or JM9. and before installing apps do a full reset and cache wipe.

MagicOnline said:
maybe u should consider upgrading to JM7 or JM9.
Click to expand...
Click to collapse
I'm waiting for CM 6.1 to sort it all out, given that "FroYo by Samsung" still isn't what I expected it to be - at least judging from the betas.

[Q] Battery Problem??

I dunno whether it is a battery problem or what but I got a brand new battery
coz the last battery was too bad but the new battery also sucks.
I was wondering if it was cause of the ROM and kernel so
I switched to stock rom for trial purpose and still I got juz like barely 7 hours of juice....
with juz some files thru bluetooth and half an hour or so of texting....
so what could be causing the problem?
Here's the battery stats...

NiiSyth said:
I dunno whether it is a battery problem or what but I got a brand new battery
coz the last battery was too bad but the new battery also sucks.
I was wondering if it was cause of the ROM and kernel so
I switched to stock rom for trial purpose and still I got juz like barely 7 hours of juice....
with juz some files thru bluetooth and half an hour or so of texting....
so what could be causing the problem?
Here's the battery stats...
Click to expand...
Click to collapse
I'm not really an expert on this... but I'll try!
First, data - depending on how often your apps that use data refresh, it may be killing your battery because they are always updating in the background
Next, apps - depending on how many are open, and trying to retrieve info or a responce, this may be killing your battery life
Another, backlight brightness - I would say half brightness looks almost the same as full brightness, so turn that down too. Another thing you can do is make sure that your phone times out so the screen is always on and sucking the life out of your battery
Plus, bluetooth and wifi - turn those off when you aren't using them! They turn on in a couple of seconds so there is no use in just leaving them on and draining your battery.
Lastly, I dunno what "kik" is (the app running in the corner of the status bar) but it may be using battery too (probably not because it isn't in the list of the battery use so I don't think that's it.
Anyways, in short, possibly shut off the data if you don't always use it (you don't have to tho ), go into the settings of apps, and get the refresh rate at a longer period of time (so they aren't always using data), kill any open apps if you can with an app manager, turn down the brightness of backlight, change the time it takes to shut off the backlight, and shut off the bluetooth and wifi when you aren't using it.
Unfortunatley the battery life on the Ace is far from the best, if anything it's terrible, but other than that I have very few issues with the phone.
Well... That's my two cents. Hopefully it helps, but if not, search around on the forums and see if you can find any other solutions. :fingers-crossed: I'm not the expert, but I'm trying to throw ideas out there. Good luck

Running background processes is a major battery kill. I used to get 12h+ on 3G with Stocklite V6. Never used heavy apps though. Just Textplus, Opera Mini to check fb sometimes and WhatsApp whenever someone talked to me. Light usage.
How much the battery lasts depends on the user completely.

thatdude02 said:
I'm not really an expert on this... but I'll try!
First, data - depending on how often your apps that use data refresh, it may be killing your battery because they are always updating in the background
Next, apps - depending on how many are open, and trying to retrieve info or a responce, this may be killing your battery life
Another, backlight brightness - I would say half brightness looks almost the same as full brightness, so turn that down too. Another thing you can do is make sure that your phone times out so the screen is always on and sucking the life out of your battery
Plus, bluetooth and wifi - turn those off when you aren't using them! They turn on in a couple of seconds so there is no use in just leaving them on and draining your battery.
Lastly, I dunno what "kik" is (the app running in the corner of the status bar) but it may be using battery too (probably not because it isn't in the list of the battery use so I don't think that's it.
Anyways, in short, possibly shut off the data if you don't always use it (you don't have to tho ), go into the settings of apps, and get the refresh rate at a longer period of time (so they aren't always using data), kill any open apps if you can with an app manager, turn down the brightness of backlight, change the time it takes to shut off the backlight, and shut off the bluetooth and wifi when you aren't using it.
Unfortunatley the battery life on the Ace is far from the best, if anything it's terrible, but other than that I have very few issues with the phone.
Well... That's my two cents. Hopefully it helps, but if not, search around on the forums and see if you can find any other solutions. :fingers-crossed: I'm not the expert, but I'm trying to throw ideas out there. Good luck
Click to expand...
Click to collapse
First of all thnx for taking this much time out....
It's rlly helpful...
but
1. My data usage is barely 10 mb per day....
and no wifi and mearge usage of bluetooth....
2. Background apps;
only adw and one or two others...
and Kik is juz like whatsapp, a messaging app....
and it's quite lightweight, been using it since uite some time...
3. Backlight is at an always 25% and screen timeout 30 secs....
so juz wanna know if there's a possibility of some hardware fault......
coz I've tried most things possible to take out the software fault if any....

NiiSyth said:
First of all thnx for taking this much time out....
It's rlly helpful...
but
1. My data usage is barely 10 mb per day....
and no wifi and mearge usage of bluetooth....
2. Background apps;
only adw and one or two others...
and Kik is juz like whatsapp, a messaging app....
and it's quite lightweight, been using it since uite some time...
3. Backlight is at an always 25% and screen timeout 30 secs....
so juz wanna know if there's a possibility of some hardware fault......
coz I've tried most things possible to take out the software fault if any....
Click to expand...
Click to collapse
Wait, i just forgot!...
I get this too sometimes, but what might help is if you reset your battery stats! I have to do this too because I found that after a half an hour after unplugging my phone with no use I lost 10% battery life, for no apparant reason. Search in the Play Store "BatteryCalibration". All you have to do is charge your phone to 100%, and tap the button . You usually have to do this after flashing a new ROM, because you might not flash it at 100% battery life and the stats go from there. So I would say, try it and see what happens.
Now... If not... The only other suggestion I have is if you find a battery booster app such as "Juice Defender" from the Play Store. I tried using it, but didn't see a huge difference (I don't have data, so I just keep it off), probably because I barely use my phone. I've also heard some thing about a script called "v6 Super Charger" (I've only heard of it, please search it if you want to know more because I sure don't ). Aparantly it boosts battery as well, but no promises haha.
If you are really desperate for better battery life, I would say switch to 2g service in the settings. Other than that.... I'm out for now
Hopefully this might help you out as well, but other than that the Ace is not well known for a good battery. But that's a mid range phone for you (but the Ace ain't no slouch either)
Anyway, goodluck!
-edit----------
Ok, so after looking around a little, I found a very interesting thread about Lithium-Ion batteries! Really cool and really worth the read! I learned quite a bit. Hopefully this answers any additional questions that I wasn't able to answer!
http://forum.xda-developers.com/showthread.php?t=669497
Try also eliminating any widgets or live wallpapers that you may have running. These might keep the processor running at a higher speed then neccessary, but no promises.... Plus I already mentioned closing apps you don't need (so this is pretty much the same woops) and you might have done it already.
The biggest thing to remeber is that you have to sacrifice performance for the best battery life. This may go as far as underclocking your maximum CPU speed, but this might cause some lagging especially at the startup. I think that this should be a last resort to be honest, because you still want to use a phone, and not a laggy device that you are trying to conserve as much battery as possible.
I also heard something about the motherboard possibly having a hardware fault in it causing excess discharge... But... I will need to do a little more searching to see if I can figure this out for you!
The other possiblity is that you get a power bank... But that just adds to what you have to pack around, so this is probably another last resort, but it's all up to you.

thatdude02 said:
Wait, i just forgot!...
I get this too sometimes, but what might help is if you reset your battery stats! I have to do this too because I found that after a half an hour after unplugging my phone with no use I lost 10% battery life, for no apparant reason. Search in the Play Store "BatteryCalibration". All you have to do is charge your phone to 100%, and tap the button . You usually have to do this after flashing a new ROM, because you might not flash it at 100% battery life and the stats go from there. So I would say, try it and see what happens.
Now... If not... The only other suggestion I have is if you find a battery booster app such as "Juice Defender" from the Play Store. I tried using it, but didn't see a huge difference (I don't have data, so I just keep it off), probably because I barely use my phone. I've also heard some thing about a script called "v6 Super Charger" (I've only heard of it, please search it if you want to know more because I sure don't ). Aparantly it boosts battery as well, but no promises haha.
If you are really desperate for better battery life, I would say switch to 2g service in the settings. Other than that.... I'm out for now
Hopefully this might help you out as well, but other than that the Ace is not well known for a good battery. But that's a mid range phone for you (but the Ace ain't no slouch either)
Anyway, goodluck!
-edit----------
Ok, so after looking around a little, I found a very interesting thread about Lithium-Ion batteries! Really cool and really worth the read! I learned quite a bit. Hopefully this answers any additional questions that I wasn't able to answer!
http://forum.xda-developers.com/showthread.php?t=669497
Try also eliminating any widgets or live wallpapers that you may have running. These might keep the processor running at a higher speed then neccessary, but no promises.... Plus I already mentioned closing apps you don't need (so this is pretty much the same woops) and you might have done it already.
The biggest thing to remeber is that you have to sacrifice performance for the best battery life. This may go as far as underclocking your maximum CPU speed, but this might cause some lagging especially at the startup. I think that this should be a last resort to be honest, because you still want to use a phone, and not a laggy device that you are trying to conserve as much battery as possible.
I also heard something about the motherboard possibly having a hardware fault in it causing excess discharge... But... I will need to do a little more searching to see if I can figure this out for you!
The other possiblity is that you get a power bank... But that just adds to what you have to pack around, so this is probably another last resort, but it's all up to you.
Click to expand...
Click to collapse
I tried battery stat reset at every charge to see if that helped....
but no friggin help...
Prolly it's the motherboard fault.....
coz I even reverted back to touchwiz launcher with juz icons and stock rom and now dat's juz the limit...
the phone looks like a crippled giant....
capable of everything but is chained by the bloody harware problem...
gonna give it to the Samsung Service center....:/

NiiSyth said:
I tried battery stat reset at every charge to see if that helped....
but no friggin help...
Prolly it's the motherboard fault.....
coz I even reverted back to touchwiz launcher with juz icons and stock rom and now dat's juz the limit...
the phone looks like a crippled giant....
capable of everything but is chained by the bloody harware problem...
gonna give it to the Samsung Service center....:/
Click to expand...
Click to collapse
Probably the best thing to do! Sorry I couldn't be any help to you, so it's probably best if you do that. I love my Ace, but the battery just has to hold it back
It sucks, but anyway, I hope you can get it fixed!:fingers-crossed:

Guys i face the same problem. My battery stays only for 1 to 2 hour. I tried wiping battery stats, full discharge and charge but of on use
Need some help guys.
Sent from my GT-S5830 using xda app-developers app

This may be a common reply.. But I still would recommend using juice defender ultimate.. It helps a LOT!!
Sent from my GT-S5830i

Sent from my GT-S5830i

[Q] proces.android.acore constantly uses more cpu - until reboot

Hello community
I know there are hunderets of threads about the acore proces out there. but none of them seems to be related with my problem.
My acore proces uses a lot of my cpu and therefore my battery drains very fast.
(you can see what happens in the screenshot attached. every time the graph begins from zero i rebooted my phone)
My config:
I9070 - Stock 2.3.6, rooted, supercharged
Go Launcher & Go Locker
so what I hve done until now:
- cleared all my contacts (someone stated that contact sync could cause this)
- unsupercharged
- used another launcher & locker
- even reflashed stock rom
the acore proces is used from different apps like digi clock, go locker and go launcher.
maybe someone has another idea how I could get the cause of my problem...
until now I used battery mix and ASI to get the info.
Thank you in advance!

This is android main proces from framework. It doesnt make difference to battery and working in background. You can see it as android os in battery info.
Sent from my GT-I9070 using xda app-developers app

but its behaviour is not normal, is it?
you can see the android os proces as well in battery mix. and when I open ASI I can see which proces is "hiding" in the acore one. the battery consumption was not that high as I bought the phone. at first my battery lasted for at least two days, now its not even 10 hours. also the battery consumption in sleep mode is beyond normal - if I unplug my phone in the morning and dont wake it up the battery is drained by 25% after 3 hours...
i am searching a way how I can get more info about that drainage...

büscher said:
but its behaviour is not normal, is it?
you can see the android os proces as well in battery mix. and when I open ASI I can see which proces is "hiding" in the acore one. the battery consumption was not that high as I bought the phone. at first my battery lasted for at least two days, now its not even 10 hours. also the battery consumption in sleep mode is beyond normal - if I unplug my phone in the morning and dont wake it up the battery is drained by 25% after 3 hours...
i am searching a way how I can get more info about that drainage...
Click to expand...
Click to collapse
I just installed Battery mix app, and I will let you know of cpu usage on my phone for that.
P.S. For now I do not even have acore there...

shut_down said:
I just installed Battery mix app, and I will let you know of cpu usage on my phone for that.
P.S. For now I do not even have acore there...
Click to expand...
Click to collapse
Thank you for your support! Make sure you have "Hide system processes" unticked in Battery Mix.
I found something else that may could help me: "adb logcat"
There are strange things going on when my phone is in "sleep" mode...
This is what happens while my battery drains 1%: Pastebin
Somehow my softkeys are turned on and off the whole time the phone is in my pocket. I have a slight clue that NoLED is causing the drainage.
I now disabled the background light of my softkeys and uninstalled NoLED. (although I already had NoLED Disabled for a whole day and the problem persisted)
Will post results!

büscher said:
Thank you for your support! Make sure you have "Hide system processes" unticked in Battery Mix.
I found something else that may could help me: "adb logcat"
There are strange things going on when my phone is in "sleep" mode...
This is what happens while my battery drains 1%: Pastebin
Somehow my softkeys are turned on and off the whole time the phone is in my pocket. I have a slight clue that NoLED is causing the drainage.
I now disabled the background light of my softkeys and uninstalled NoLED. (although I already had NoLED Disabled for a whole day and the problem persisted)
Will post results!
Click to expand...
Click to collapse
I have acore, when i uncheck hide system... And it is on 2.7%.

shut_down said:
I have acore, when i uncheck hide system... And it is on 2.7%.
Click to expand...
Click to collapse
Lucky you. I tried JetMod, but had the same problem.
Until now it does not seem to solve the problem when i uninstall NoLED and deactivate Softkey-light. Just the Log entries disappear...

büscher said:
Lucky you. I tried JetMod, but had the same problem.
Until now it does not seem to solve the problem when i uninstall NoLED and deactivate Softkey-light. Just the Log entries disappear...
Click to expand...
Click to collapse
Some strange things happen... I used to have some 2-4 MB download on every reboot. Untill I change gmail account on phone. Now this...

I was successful.
Uninstalled Go Launcher, Go Locker and all themes that are related with them.
Installed SmartLauncher (Free without Widgets) and MagicLocker.
The acore proces is gone i just dont know exactly what the cause was.
Now I'm just waiting for JB...

[Q] Any idea what is causing my lockscreen lag?

My phone is only about 3 weeks old now, but after a day or 2 of normal, heavy usage it starts to lag. A reboot always seems to clear up the problem and it runs super fast for the day and then all of a sudden it starts lagging again. It's most notable when I lock the phone and then try to unlock it again within a minute. It just hangs there and won't respond for up to 30 secs or so. It's really frustrating if I get a phone call and try to answer it.
It seems to me that there is something that's running in the background that is eating up resources, but I can't seem to tell what it is. I'm currently running Google Now Launcher, but I've seen the problem with stock TouchWiz as well. Is this a common problem and anyone have a solution for it. I love the phone with this one exception.
Thanks

I'd also like to add that when I go into battery usage, "Android System" seems to be very high. Any ideas what is causing Android System to be my highest battery drain?