Low Free Memory and Slow Speed - Nexus 9 Q&A, Help & Troubleshooting

My Nexus 9 is running slow most of the times and it takes while to I switch between apps or open an app most of the times...what is the fix for that? I have been trying clearing the dalvick cache several times but no help...and I really don't have lots of apps. Thanks for your help in advance.

arminvm said:
My Nexus 9 is running slow most of the times and it takes while to I switch between apps or open an app most of the times...what is the fix for that? I have been trying clearing the dalvick cache several times but no help...and I really don't have lots of apps. Thanks for your help in advance.
Click to expand...
Click to collapse
try flash custom kernel..the memory management is very good with custom kernel
Sent from my Nexus 9 using Tapatalk

arminvm said:
My Nexus 9 is running slow most of the times and it takes while to I switch between apps or open an app most of the times...what is the fix for that? I have been trying clearing the dalvick cache several times but no help...and I really don't have lots of apps. Thanks for your help in advance.
Click to expand...
Click to collapse
Try tapping on 'Memory used by apps' on that memory settings screen, should let you know what the culprit is

Choochter said:
Try tapping on 'Memory used by apps' on that memory settings screen, should let you know what the culprit is
Click to expand...
Click to collapse
Firstly, you need to face the fact that 2GB was a bad decision by Google for this tablet. There is nothing that we can ever do about that. :crying:
If you want to stay on stock, Chrome is the main culprit in consuming Ram. Switching to Habit Browser makes things better as well as changing your DPI to 288. Do a search on XDA regarding this. Whilst it improved things, it was still not enough for me.
I snapped a week ago and have now rooted and flashed CM13 and stuck with Habit. I've been using a few days now, and for the first time, I can keep my 3 Fantasy Premier League Tabs open, (they are huge,) without constant refreshes, redraws and lag. :victory: Right now, I feel for the first time, I'm getting what I paid for and the Nexus Experience. The only bug so far, is that always listening doesn't work.
If you've just bought this tablet, I'd consider returning it if you are not prepared to root. The performance will never be acceptable on stock.

arminvm said:
My Nexus 9 is running slow most of the times and it takes while to I switch between apps or open an app most of the times...what is the fix for that? I have been trying clearing the dalvick cache several times but no help...and I really don't have lots of apps. Thanks for your help in advance.
Click to expand...
Click to collapse
Clearing dalvik cache will do precisely ONE thing and ONLY one thing; make it take a long time to boot next time as it regenerates it.
Ignore the amount of available memory. People who are concerned about the amount of free memory are trying to apply bad mswindows knowledge to Android. Totally different and no comparison. UNUSED MEMORY IS WASTED MEMORY!!!
So here is how memory management works in Android; it *preloads* everything that it thinks you are most likely to actually use, so that when you DO use it, it is more likely already loaded and starts up very quickly. If you are switching to something that is NOT already loaded, then it just needs to dump lower priority programs out of memory, which basically only takes a few nanoseconds (billionths of a second). So that is NOT it.
If your device is acting slowly, then you need to figure out what the actual cause is. Trace the CPU utilization with something like the "top" command (the one with busybox is a lot nicer than the one that comes with Android) while you are experiencing slowdown. You can also look to see if there is excessive I/O happening (i.e. read/write to the internal storage), and of course, some software will require a network exchange before it will start up -- nothing you can do about network lags.

kacang87 said:
try flash custom kernel..the memory management is very good with custom kernel
Sent from my Nexus 9 using Tapatalk
Click to expand...
Click to collapse
Thanks. I am still on the official rom, I probably should switch.

Choochter said:
Try tapping on 'Memory used by apps' on that memory settings screen, should let you know what the culprit is
Click to expand...
Click to collapse
I have done it several times. As I said, I really have not so many apps and just the very common google apps are installed.

Masteryates said:
Firstly, you need to face the fact that 2GB was a bad decision by Google for this tablet. There is nothing that we can ever do about that. :crying:
If you want to stay on stock, Chrome is the main culprit in consuming Ram. Switching to Habit Browser makes things better as well as changing your DPI to 288. Do a search on XDA regarding this. Whilst it improved things, it was still not enough for me.
I snapped a week ago and have now rooted and flashed CM13 and stuck with Habit. I've been using a few days now, and for the first time, I can keep my 3 Fantasy Premier League Tabs open, (they are huge,) without constant refreshes, redraws and lag. :victory: Right now, I feel for the first time, I'm getting what I paid for and the Nexus Experience. The only bug so far, is that always listening doesn't work.
If you've just bought this tablet, I'd consider returning it if you are not prepared to root. The performance will never be acceptable on stock.
Click to expand...
Click to collapse
Thanks for your reply. Yeah, most of the times, the slow down happens while I am in chrome and browsing..it actually is not snappy at all in internet browsing...however, I remember it was back in the days that I had bought it.
No, I have this Nexus 9 since last May I think, but have not yet found the time to root it and flash a custom kernel and rom . Anywyas, I have done it previously for my other devices, so not that much rookie in it. Probably will give it a try,

doitright said:
Clearing dalvik cache will do precisely ONE thing and ONLY one thing; make it take a long time to boot next time as it regenerates it.
Ignore the amount of available memory. People who are concerned about the amount of free memory are trying to apply bad mswindows knowledge to Android. Totally different and no comparison. UNUSED MEMORY IS WASTED MEMORY!!!
So here is how memory management works in Android; it *preloads* everything that it thinks you are most likely to actually use, so that when you DO use it, it is more likely already loaded and starts up very quickly. If you are switching to something that is NOT already loaded, then it just needs to dump lower priority programs out of memory, which basically only takes a few nanoseconds (billionths of a second). So that is NOT it.
If your device is acting slowly, then you need to figure out what the actual cause is. Trace the CPU utilization with something like the "top" command (the one with busybox is a lot nicer than the one that comes with Android) while you are experiencing slowdown. You can also look to see if there is excessive I/O happening (i.e. read/write to the internal storage), and of course, some software will require a network exchange before it will start up -- nothing you can do about network lags.
Click to expand...
Click to collapse
Thanks for your kind reply and explanation.
I think that is exactly the problem as even sometimes switching between the apps that I have just opened is also so slow and the nexus lags badly....Yes, I am aware of the network lags, but the problem I was talking about does not have anything to do with it...I will try the command you said, but can I run it on stock rom? I have not yet rooted my nexus nor flashed a custom rom.
Thanks

arminvm said:
Thanks for your kind reply and explanation.
I think that is exactly the problem as even sometimes switching between the apps that I have just opened is also so slow and the nexus lags badly....Yes, I am aware of the network lags, but the problem I was talking about does not have anything to do with it...I will try the command you said, but can I run it on stock rom? I have not yet rooted my nexus nor flashed a custom rom.
You can do some investigation by watching the processes and seeing which are taking the CPU and memory on stock. The problem is, when you find out, there isn't much you can do about it.
Thanks
Click to expand...
Click to collapse
You can do some investigation by watching the processes and seeing which are taking the CPU and memory on stock. The problem is, when you find out, there isn't much you can do about it.
Its quicker and easier to just install a custom rom where this type of work has already been done for you. :victory:

Lately, I've discovered that loading Chrome immediately raises my CPU temp by 30+ degrees. Sometimes that's enough to make things run really slow

Yeah, I agree...I will try to fimd sometime amd go over flashing a custom rom. ??

Yes! I habe noticed that these slow downs mostly happen when I am browsing in Chrome...

Web browsers are DEFINITELY a source of slowdowns.
The problem, more often than not, is actually *javascript* that is written by MORONS. Even on a desktop machine, you can watch the web browser for CPU and RAM utilization, and it just grows and grows and grows until you finally kill the process and start a new one.
What this may come down to is actually quite simple; the CPU in the Nexus 9 is actually more suitable for use as a stovetop than an actual CPU. These things get way too hot way too fast. If you beat on them with a web browser, they'll get hot and throttle down to low/verylow frequency, which will make them generally unresponsive. So if that is what is happening to you, there really end up being a few options to deal with it;
1) disable javascript in the browser,
2) don't use the browser,
3) improve the ability to disperse heat from the CPU.
For #3, you may note that when it gets hot, it is pretty localized to the corner of the device up near the power button. An easy solution to distribute heat better might be something simple, like adding a layer of copper foil to the inside of the back cover. The thicker the copper foil the better. Copper is very good at conducting heat, so this would spread the heat around over the entire area covered by that foil. http://www.ebay.com/itm/Copper-Foil...nductive-Adhesive-Ship-from-USA-/162018486132

I also found chrome was slow starting up, switching tabs etc. Found that logging out of my Google account in chrome improved this. Seems that synching tabs etc triggers the pause. This might be an acceptable workaround for some but I appreciate it isn't a great fix if you want to use that feature. Actually I'm not bothered as I think Google know too much anyway. �� But the underlying problem is this tablet... I don't have this problem on my phone.

doitright said:
Web browsers are DEFINITELY a source of slowdowns.
The problem, more often than not, is actually *javascript* that is written by MORONS. Even on a desktop machine, you can watch the web browser for CPU and RAM utilization, and it just grows and grows and grows until you finally kill the process and start a new one.
What this may come down to is actually quite simple; the CPU in the Nexus 9 is actually more suitable for use as a stovetop than an actual CPU. These things get way too hot way too fast. If you beat on them with a web browser, they'll get hot and throttle down to low/verylow frequency, which will make them generally unresponsive. So if that is what is happening to you, there really end up being a few options to deal with it;
1) disable javascript in the browser,
2) don't use the browser,
3) improve the ability to disperse heat from the CPU.
For #3, you may note that when it gets hot, it is pretty localized to the corner of the device up near the power button. An easy solution to distribute heat better might be something simple, like adding a layer of copper foil to the inside of the back cover. The thicker the copper foil the better. Copper is very good at conducting heat, so this would spread the heat around over the entire area covered by that foil. http://www.ebay.com/itm/Copper-Foil...nductive-Adhesive-Ship-from-USA-/162018486132
Click to expand...
Click to collapse
Yeah, they do get hot...and the browser is the problem, I agree...however, I think they are not the main reason...there is something wrong with low memory or maybe some apps...

astralbee said:
I also found chrome was slow starting up, switching tabs etc. Found that logging out of my Google account in chrome improved this. Seems that synching tabs etc triggers the pause. This might be an acceptable workaround for some but I appreciate it isn't a great fix if you want to use that feature. Actually I'm not bothered as I think Google know too much anyway. �� But the underlying problem is this tablet... I don't have this problem on my phone.
Click to expand...
Click to collapse
Haha, I agree...google already knows a lot!..thanks

arminvm said:
Yeah, they do get hot...and the browser is the problem, I agree...however, I think they are not the main reason...there is something wrong with low memory or maybe some apps...
Click to expand...
Click to collapse
I don't agree with that.
We use our N9's *all of the time*, and there is never any perceptible slowdown. Possibly with the exception of straining them with web browsers, but web browsers are... poopy... on EVERY platform and device, so that doesn't really stand out. Typically just minimize the use of web browsers and all is well.
Web browsers were good in 1996 when they were simple things to display an html website. Since then, they've added all kinds of useless crap to them that bloat them out, hog up tons of memory, and just generally make them into a useless waste of space.

doitright said:
I don't agree with that.
We use our N9's *all of the time*, and there is never any perceptible slowdown. Possibly with the exception of straining them with web browsers, but web browsers are... poopy... on EVERY platform and device, so that doesn't really stand out. Typically just minimize the use of web browsers and all is well.
Web browsers were good in 1996 when they were simple things to display an html website. Since then, they've added all kinds of useless crap to them that bloat them out, hog up tons of memory, and just generally make them into a useless waste of space.
Click to expand...
Click to collapse
I know..but everyone knows that N9 should be faster!...
Sent from my HTC One_M8 using XDA-Developers mobile app

Update:
I think I have kind of find the problem of low speed of my Nexus 9...I uninstalled an app that was for weather prediction and from that time on my Nexus 9 is very fast and responsive...No problem so far. I also uninstalled some other apps alogaide that which I was never using them,so I am not sure if the weather app was exactly the reason of the slow downs...but the other apps where just some games or some simple apps....well, I hope this information helps! Let me know your idea. Thanks everyone
Sent from my HTC One_M8 using XDA-Developers mobile app

Related

What is the real advantage of...THE LAG FIX?

I'm curious... Do you apply/wanna apply a lag fix because your device is actually lagging or is it just the thing to do nowadays? I ask because I have never found a need for one. The only lag I had on the Vibrant was when I first took it out of the box and even that was kinda tolerable. But as things are right now, I really don't see how my device could get any faster and if it could...why? Quadrant scores? What is the real advantage (if any) to having it? .02¢
Lag fix? Never have, never will!
High quadrant scores. Do you see the first thing most people mention when they install the lag fix?
"My quadrant score went from 200 to 2000!!!!!!!!" as if it was an indicator of actual performance.
No good, controlled tests have been conducted.
I don't use it. The one time I did, when it was included in the kernel with BLN, I had horrible battery life. Most people use it to get higher scores. The N1 would run circles around the Vibrant in terms of scores but when in real world testing, both devices are just as fast.
It's not just scores...
It makes your system a bit faster people nowadays do it without needing to and there's nothing wrong with that.
I run a lagfix and it has improved my speed and response.
Without making me lose any battery
xriderx66 said:
It's not just scores...
It makes your system a bit faster people nowadays do it without needing to and there's nothing wrong with that.
Click to expand...
Click to collapse
Point taken, but looking at most of the threads in the Q&A section...it seems that the LF's do more harm than good, especially if you aren't too sure about what you're doing.
Lag fix? Never have, never will!
The lag fix circumvents RFS in many areas.
Galaxy S phones have terrible I/O performance. Notably Database Read/Writes and apps that work generally hit the storage often.
Run Touchdown on a Galaxy S phone without a lag fix and you'll see how sluggish that application runs due to RFS. The workaround is to move the database to the external SD Card (which results in frequent corruptions) or install a lag fix.
It also causes the phone to take an inordinate amount of time to boot up (Media Scanning... etc.) and lag randomly when applications sync and access the storage to write data. It lags when Installing and Uninstalling applications from the Android market as well.
If you think a Lag Fix is only to boost Quadrant Scores (those scores are bunk, anyways), then perhaps you're using a different phone in a Vibrant casing.
There are several applications littered with "laggy on my Galaxy S" in the market.
Also, there is a bug in the Samsung Android 2.1 kernel that breaks some applications. That's why there are apps popping up saying you need 2.2 on your Galaxy S phone to run them (Skype, Yahoo Messenger, etc.).
My Vibrant, both before and after JI6, was laggy to the point of not being usable - until I applied RyanZA's OCLF (I removed OCLF and tried voodoo but soft-bricked the phone in the process). I've never run the Quadrant score analysis - all I care about is usability of the phone, and after the OCLF was applied my phone became usable.
I tried Axura 2.0.x with no lag fixes and, while my phone was generally faster than JI6 pre-lag fix, it still suffered from lag in many user interactions (opening apps, launching email, reading individual emails, using gallery, etc.) I went back to stock + JI6 via ODIN, reapplied OCLF, and was happy again.
Are there different hardware revisions of the Vibrant that might account for the differences in user experience? I've seen many posts from users who claim they never had any lag or GPS problems, and many more (like me) who have been plagued with them.
Most of those users are fanboys and wouldn't admit it even if they fot one of those 5+ second lockups while making their post.
Sent from my SGH-T959 using XDA App
BlackElvis79 said:
I'm curious... Do you apply/wanna apply a lag fix because your device is actually lagging or is it just the thing to do nowadays? I ask because I have never found a need for one. The only lag I had on the Vibrant was when I first took it out of the box and even that was kinda tolerable. But as things are right now, I really don't see how my device could get any faster and if it could...why? Quadrant scores? What is the real advantage (if any) to having it? .02¢
Lag fix? Never have, never will!
Click to expand...
Click to collapse
It's cause the phone is laggy. I don't usr lag fixes because I don't lile tampering with phones at the system level, regardless, but I have freezes several times a day and have even had my phone completely lock up on me a couple of times - requiring a battery pull.
The less services you have running, and the less apps that sync data runnimg, the less the lag is. The lag happens mostly when the storagr is used (background syncing can cause it, for example).
Yes, people with no twit/fb/reader apps/accounts setup, among other things may be totally fine depending on their usage.
Sent from my SGH-T959 using XDA App
Once you go Lag Fix you never go back! Lol
Sent from my SGH-T959 using XDA App
It has made some apps actually usable.
Before the lag fix, the facebook app was basically unusable for me. Any action would have a 5-10 second pause before seeing a result.
Swipe to scroll, wait, click a picture, wait.
I think the facebook app was the worse for me because I did manual updates so every time I launched the app, it would be d/ling and writing while I was trying to scroll around and read stuff.
But in general, it has made my phone usable. Before I did the lag fix, I basically stopped using my phone because it got so annoying having to wait.
I've never run quadrant on my phone actually. I don't even really use root for anything. I did it primarily for the lag fix and the I changed my battery bar so that it's accurate. Everything else I'm happy with.
So, could this just be an issue that only certain phones have? Or, could some of it be mental? Like, if you hear enough ppl say that this is broken or that isn't working...you start to think that yours is broken also? I've never had an issue with gps...and I use foursquare and navigation on a regular basis. But everybody else seems to have broken gps.
Lag fix? Never have, never will!
N8ter said:
Yes, people with no twit/fb/reader apps/accounts setup, among other things may be totally fine depending on their usage.
Sent from my SGH-T959 using XDA App
Click to expand...
Click to collapse
This makes sense. Everything besides my work email account is synced manually. FB, TD, etc. And when I get really busy I even cut my data off. But on the other hand, I text and browse constantly. And switch back and forth between appear running simultaneously. And when im not working...
Lag fix? Never have, never will!
BlackElvis79 said:
This makes sense. Everything besides my work email account is synced manually. FB, TD, etc. And when I get really busy I even cut my data off.
Lag fix? Never have, never will!
Click to expand...
Click to collapse
hmm... I used a JFS lag fix for awhile, and it still hung slightly when syncing.
it did not seem better or worse really.
and the same thing happens on my mytouch so I think its just something that happens, lag fix running or not.
its really not that bothersome, but I do the same as you, I manually sync most everything.
I mean if I'm not looking at my facebook widget constantly, why should it be auto syncing?
lol it only takes a second to push the refresh button
but thats just me.
N8ter said:
It's cause the phone is laggy. I don't usr lag fixes because I don't lile tampering with phones at the system level, regardless, but I have freezes several times a day and have even had my phone completely lock up on me a couple of times - requiring a battery pull.
The less services you have running, and the less apps that sync data runnimg, the less the lag is. The lag happens mostly when the storagr is used (background syncing can cause it, for example).
Yes, people with no twit/fb/reader apps/accounts setup, among other things may be totally fine depending on their usage.
Sent from my SGH-T959 using XDA App
Click to expand...
Click to collapse
I have 2 email account, syncmypix, weather apps & news updating every hour and i have never had any lag problems, even running on JI2 stock, much less ever had phone freezes. The ONLY time I had phone freezing was messing with those OC kernels, which I promptly uninstalled.
Let me ask people that run lag fixes this, when playing with the Vibrant at the t-mobile store, why did you choose buy it if you were experiencing this "lag", especially when it was running stock firmware?
edit: I also ran JFS lag fix for a day, but that drained my battery faster than a fat kid ate cake. It was not even noticeably faster either.
BlackElvis79 said:
So, could this just be an issue that only certain phones have? Or, could some of it be mental? Like, if you hear enough ppl say that this is broken or that isn't working...you start to think that yours is broken also? I've never had an issue with gps...and I use foursquare and navigation on a regular basis. But everybody else seems to have broken gps.
Lag fix? Never have, never will!
Click to expand...
Click to collapse
Its not mental its on every phone. Unless lagfixed/hacked u have the same fileaystem as us.
The home switchers and unofficial roms are morw mental due to placebo effect - some lag fixes aren't even that good, but people claim tenfold improvements due to placebo effect...
Sent from my SGH-T959 using XDA App
anthonys2r said:
I have 2 email account, syncmypix, weather apps & news updating every hour and i have never had any lag problems, even running on JI2 stock, much less ever had phone freezes. The ONLY time I had phone freezing was messing with those OC kernels, which I promptly uninstalled.
Let me ask people that run lag fixes this, when playing with the Vibrant at the t-mobile store, why did you choose buy it if you were experiencing this "lag", especially when it was running stock firmware?
edit: I also ran JFS lag fix for a day, but that drained my battery faster than a fat kid ate cake. It was not even noticeably faster either.
Click to expand...
Click to collapse
The phone T the store wasn't syncing a google and corp accoumt, plus facebook, plus twitter, and other apps. It simply wadn't prone to lagging, brcausr no user in their righy mind sets their **** up on a display unit just to test it.
Btw, "why didn't you test it for 10 min before you bought it" is getting old.
Their were no other good phones in t-mo when many of us broughy yhis. Couldn't just swap for a g2, mt4g, or hd7.
Many people thought an update would fix it, like the gps.
We were wrong, obviously.
Sent from my SGH-T959 using XDA App
firefly6240 said:
hmm... I used a JFS lag fix for awhile, and it still hung slightly when syncing.
it did not seem better or worse really.
and the same thing happens on my mytouch so I think its just something that happens, lag fix running or not.
its really not that bothersome, but I do the same as you, I manually sync most everything.
I mean if I'm not looking at my facebook widget constantly, why should it be auto syncing?
lol it only takes a second to push the refresh button
but thats just me.
Click to expand...
Click to collapse
If not syncing, then you can miss direct message notifications on fb and twitter.
Symcing manually is unacceptable to many. Don't have to do that on other phones......
Sent from my SGH-T959 using XDA App
BlackElvis79 said:
Point taken, but looking at most of the threads in the Q&A section...it seems that the LF's do more harm than good, especially if you aren't too sure about what you're doing.
Lag fix? Never have, never will!
Click to expand...
Click to collapse
If you have stock rom then oclf is best and I'm on Axura so my choice is voodoo but I've read it causes too many problems.
People should know what their doing before messing with stuff like that..
They have a forum here to ask all these questions but they do it themselves then when their phones screwed they ask questions...
N8ter said:
If not syncing, then you can miss direct message notifications on fb and twitter.
Symcing manually is unacceptable to many. Don't have to do that on other phones......
Sent from my SGH-T959 using XDA App
Click to expand...
Click to collapse
I've done it on pretty much every phone I've owned, but like I said its not really nessicary, if anything its a slight stutter, but either way its not different than other android phones I've used (even my vibrant using a lag fix). its really just my preference to sync manually.

Only 100mbs of RAM free on SGS3 (and always clearing RAM in background)

Just what it says. I've had my Galaxy S3 for 4 days and I've noticed that I only ever have about 100mbs (out of 800) free on my phone at any one time.
On my SGS2 I have over 300mb even with many games/apps running.
Sure my SGS3 is far faster than my SGS2 but when it comes to Web surfing and watching flash videos on pages, as well as just browsing around the home screen sometimes the phone gets so low on memory that it just starts to randomly kill apps that I have open. Apps like: Avast (which I don't use for the Anti-virus but for the extensive Anti-theft protection), Viber - which I use for making and receiving VoIP calls and Tasker. Which I use for automating things.
Surely a phone like this needs RAM I'm sure. But leaving me with just 100mbs spare for everything else can't be right can it?
I don't have many things running. Just the normal stuff. The main point is that my SGS2 could easily handle all this.
Anyone else having the same problem? Is there anything I can do? I use the Opera Mobile (not lite) browser.
I'd be happy to provide more information if needed. I'm pretty gutted over this. Battery life is lovely but the phone's performance grinds to a total halt when it clears its RAM... Which I never did manually on my SGS2 because it drains battery when it caches everything instantly again anyway.
Thanks so much in advance.
P.S. I can't find a 'task manager' app anywhere. I know if hold down the home button that I can access the task manager by pressing 'task manager' but that doesn't show me anything useful like what the SGS2 does. I can't exit apps or see how much RAM and CPU they are using or anything. Does the SGS3 really not have this option??
Touchwiz for s3 is heavy! Normally you shouldn't worry about ram on Android but touchwiz is really little much... I would recommend cm9 maybe.. Lightweight and fast
Skickat från min GT-I9300 via Tapatalk 2
Free ram is wasted ram, that is all
Sent from my GT-I9300 using Tapatalk 2
Hey thanks a lot for your reply!
I will never be flashing a custom Rom over this phone. I like it the way that it is. I'm using Nova Launcher not TwLauncher.
Surely touchwiz can't be that big of a RAM hog. I have 4.0.3 on my SGS2 how can 4.0.4 be so much worse?
Edit: Obviously free RAM is wasted RAM but did you even read my post at all??? My phone keeps running out of RAM and killing apps, then reloading them instantly which slows down my phone to a halt and excessively drains my battery...
Ram handling is clearly flawed in SGS 3, lets hope the is no HW bug.
Hopefully future updates will fix the leaking memory.
Does people think that android is windows, or why someone allways complain about low ram? People, please learn how android ram management really works.
http://forum.xda-developers.com/showthread.php?t=1813018&highlight=memory
http://forum.xda-developers.com/showthread.php?t=1812620&highlight=memory
Search a bit more next time. Read these threads and you will know why it is silly to want more free RAM.
leijonasisu said:
Hey thanks a lot for your reply!
I will never be flashing a custom Rom over this phone. I like it the way that it is. I'm using Nova Launcher not TwLauncher.
Surely touchwiz can't be that big of a RAM hog. I have 4.0.3 on my SGS2 how can 4.0.4 be so much worse?
Edit: Obviously free RAM is wasted RAM but did you even read my post at all??? My phone keeps running out of RAM and killing apps, then reloading them instantly which slows down my phone to a halt and excessively drains my battery...
Click to expand...
Click to collapse
What are you even doing here? I'm running custom rom and the killing of apps is gone.
To those people spamming about "free ram is wasted ram" that is true BUT samsung set their priorities wrong to start killing apps you use, since touchwiz is pretty big it kills the apps you need instead. On cm9 the ram can be used for cache for stuff you actually need and use. This dude having issues with multitasking due to bad priorities wich is solved by mods / custom roms.. If you not are willing to try that I have no clue why you ask in xda for help.
Skickat från min GT-I9300 via Tapatalk 2
leijonasisu said:
Just what it says. I've had my Galaxy S3 for 4 days and I've noticed that I only ever have about 100mbs (out of 800) free on my phone at any one time.
On my SGS2 I have over 300mb even with many games/apps running.
Sure my SGS3 is far faster than my SGS2 but when it comes to Web surfing and watching flash videos on pages, as well as just browsing around the home screen sometimes the phone gets so low on memory that it just starts to randomly kill apps that I have open. Apps like: Avast (which I don't use for the Anti-virus but for the extensive Anti-theft protection), Viber - which I use for making and receiving VoIP calls and Tasker. Which I use for automating things.
Surely a phone like this needs RAM I'm sure. But leaving me with just 100mbs spare for everything else can't be right can it?
I don't have many things running. Just the normal stuff. The main point is that my SGS2 could easily handle all this.
Anyone else having the same problem? Is there anything I can do? I use the Opera Mobile (not lite) browser.
I'd be happy to provide more information if needed. I'm pretty gutted over this. Battery life is lovely but the phone's performance grinds to a total halt when it clears its RAM... Which I never did manually on my SGS2 because it drains battery when it caches everything instantly again anyway.
Thanks so much in advance.
P.S. I can't find a 'task manager' app anywhere. I know if hold down the home button that I can access the task manager by pressing 'task manager' but that doesn't show me anything useful like what the SGS2 does. I can't exit apps or see how much RAM and CPU they are using or anything. Does the SGS3 really not have this option??
Click to expand...
Click to collapse
Maybe free ram in android is wasted ram, but only if the ram is used for USEFUL apps. Samsung have made a lot of stupid apps run in the background at all time, like softwareupdate, Chaton, some clud service process, AllShare Service, and a lot more (google maps also run at any given time, eating 30 mb of ram). All of this apps run in the background and take up a lot of ram, even tho I NEVER use this apps. All of these running apps, prevent the apps that I USE from being kept in the ram, and thus leads to a longer load time (f.x. Handcent SMS take a sec or 2 to load if it is not already loaded in the ram). What I did was to download Autostarts from the market and prevent these apps from starting up by themself, and thus I made room for the apps I use to be kept in the ram. However, be carefull, disabling apps from starting up (especially system apps), can cause problems!
Lennyuk said:
Free ram is wasted ram, that is all
Sent from my GT-I9300 using Tapatalk 2
Click to expand...
Click to collapse
If someone has 300MB free ram and is asking about freeing up more ram this makes sense.
If free ram is always <100mb then there's a memory management problem.
OP try disabling unused apps in the app manager, streamline startup apps and use gemini to turn off auto launching of unneeded apps.
On stock I used to have about 150-200MB free ram at boot. With CM9 and 10 i get 300-400MB free RAM at boot.
http://www.androidcentral.com/ram-what-it-how-its-used-and-why-you-shouldnt-care
Simple question for Google
leijonasisu said:
Hey thanks a lot for your reply!
I will never be flashing a custom Rom over this phone. I like it the way that it is. I'm using Nova Launcher not TwLauncher.
Surely touchwiz can't be that big of a RAM hog. I have 4.0.3 on my SGS2 how can 4.0.4 be so much worse?
Edit: Obviously free RAM is wasted RAM but did you even read my post at all??? My phone keeps running out of RAM and killing apps, then reloading them instantly which slows down my phone to a halt and excessively drains my battery...
Click to expand...
Click to collapse
Just freeze all of the bloatware. Install a good custom kernel (eg Siyah) and move on! No one to blame but yourself for not doing that or wanting to.
Android is doing its job just fine with memory. It's just bogged down by Samsung and vendor crapware.
Be lucky you ain't in the US, DHS big brother software becoming mandatory soon lol
Sent from my GT-I9300 using xda app-developers app
tsangwc said:
http://forum.xda-developers.com/showthread.php?t=1813018&highlight=memory
http://forum.xda-developers.com/showthread.php?t=1812620&highlight=memory
Search a bit more next time. Read these threads and you will know why it is silly to want more free RAM.
Click to expand...
Click to collapse
mant thanks for your post, wasn't awared about this 2 topics... :good:
dfMails said:
http://www.androidcentral.com/ram-what-it-how-its-used-and-why-you-shouldnt-care
Simple question for Google
Click to expand...
Click to collapse
This has nothing to do with the issues op is facing, stop spamming all these in threads without reading the op at least.. I'm not talking to you directly but to everyone that just reads topic and "free ram wasted ram!"
Skickat från min GT-I9300 via Tapatalk 2
norpan111 said:
This has nothing to do with the issues op is facing, stop spamming all these in threads without reading the op at least.. I'm not talking to you directly but to everyone that just reads topic and "free ram wasted ram!"
Skickat från min GT-I9300 via Tapatalk 2
Click to expand...
Click to collapse
Tell me about it. Ive been here a week n already sick of all the 'You're a noob we're better than you' bs :-/
DocRambone said:
Ram handling is clearly flawed in SGS 3, lets hope the is no HW bug.
Hopefully future updates will fix the leaking memory.
Click to expand...
Click to collapse
I can see that from just normal use. If any webpage is open with any sort of flash container my SGS3 just starts killing background apps and throwing "Low RAM" errors. I wonder if Jelly Bean will fix this issue?
jnr21 said:
Does people think that android is windows, or why someone allways complain about low ram? People, please learn how android ram management really works.
Click to expand...
Click to collapse
Excuse me but not everyone who asks questions in the XDA forums are idiots. I don't know what's with the attitude here of everyone with a couple of hundred posts but I'm not impressed. Knowing how RAM management works has NOTHING to do with this thread. The complaint in question here is that my phone is constantly running out of RAM and when it does it starts to kill background apps to free RAM which in turn grinds my phone down to a halt, and drains the battery excessively. Are you just here to get your post count up or something?
tsangwc said:
http://forum.xda-developers.com/showthread.php?t=1813018&highlight=memory
http://forum.xda-developers.com/showthread.php?t=1812620&highlight=memory
Search a bit more next time. Read these threads and you will know why it is silly to want more free RAM.
Click to expand...
Click to collapse
UGHHHH!!! READ WHOLE DAMN POST! NOT JUST THE THREAD LINE.. I don't care about if my phone has 3MB of RAM free all the time or not as long as it works without a hitch, what I care about is that my phone is killing background apps that I need open and then constantly reloading them over and over when I'm web browsing and sometimes when I'm just at the home-screen.
norpan111 said:
What are you even doing here? If you not are willing to try that I have no clue why you ask in xda for help.
Click to expand...
Click to collapse
XDA isn't just about modding/using custom roms etc. There are multiple sections on the forums here for discussion about other topics. Including asking general questions about the device... I use ROMs on my other phones where I can because I love them and I don't mind the constant updating I have to do. But on this phone, I don't want to use partially-unstable roms that require me to constantly flash my phone over and over again just to get features that are already working fine in the general release version. There is no guarantee that this problem will be fixed in a rom anyway and some of us don't like breaking our warranty. Even if it's child's-play to return the phone back to stock settings and renew the warranty.
kbkrogs said:
Maybe free ram in android is wasted ram, but only if the ram is used for USEFUL apps. Samsung have made a lot of stupid apps run in the background at all time, like software update, Chaton, some clud service process, AllShare Service, and a lot more (google maps also run at any given time, eating 30 mb of ram).
Click to expand...
Click to collapse
I've frozen all of these... 'Talkback, OTA Updates, Bluetooth (I never use it) as well as turned off NFC and a bunch of other things etc. etc. etc. I don't have that much running in the background but my phone still bounces between 330MBs (after killing everything) of free RAM and under >90. (2 mins later after everything has reloaded) To which it then starts throwing warnings and killing apps I need.
jbonetwo said:
If someone has 300MB free ram and is asking about freeing up more ram this makes sense.
If free ram is always <100mb then there's a memory management problem.
OP try disabling unused apps in the app manager, streamline startup apps and use gemini to turn off auto launching of unneeded apps.
On stock I used to have about 150-200MB free ram at boot. With CM9 and 10 i get 300-400MB free RAM at boot.
Click to expand...
Click to collapse
^This. THANKYOU! Finally someone who didn't just read the tagline and post stupid retorts like "This isn't Windows" etc. I thought I was being plenty clear enough when I stated that the problem I was talking about was the fact that the phone goes from blisteringly fast, to painstakingly slow whilst browsing.
Disabling ALL addons (Javascript, Flash etc). from running while browsing stops this from happening 99.9% of the time. I also removed Tasker, much to my displeasure and froze a few more apps and it seems to happen less now but I'm still hovering around the 'workable' part of my phone. Which makes me feel a bit displeased because I didn't buy a phone to be limited by what I can do with it...
dfMails said:
http://www.androidcentral.com/ram-what-it-how-its-used-and-why-you-shouldnt-care
Simple question for Google
Click to expand...
Click to collapse
Thanks for being another jackass who posts unhelpful crap in threads without actually reading them at all. You might think you're doing people a favor but you're not, and if that's how you roll, then forums aren't the place for you.
KMino said:
Just freeze all of the bloatware. Install a good custom kernel (eg Siyah) and move on! No one to blame but yourself for not doing that or wanting to.
Android is doing its job just fine with memory. It's just bogged down by Samsung and vendor crapware.
Be lucky you ain't in the US, DHS big brother software becoming mandatory soon lol
Click to expand...
Click to collapse
It's hard to freeze bloatware when you have a bunch of people posting in forums that they don't know half of what the apps on the SGS3 do and if they are safe to freeze or not. I've done some searches but it seems that most people are generally confused about what is safe or not to freeze. Same thing happened with the SGS2. When I got it I googled (and found this place) what I could freeze and found people nitpicking over what they should, and shouldn't freeze. I have frozen everything that I've found is safe to, from multiple threads on the forums here.
I'll go and read a thread though as to why it's a good idea to flash a new kernel. I'd rather not have any restrictions as it is anyway, so that will be my next step, thanks!
------------------------------------------------------------------------------------------------
Thanks a ton to anyone who gave me the time of day and didn't just slam up some copypaste drama that has nothing to do with this thread. Free RAM is wasted RAM but when there isn't enough free RAM that background apps start getting killed (and usually instantly reloaded) then it goes without saying phone gets slower, battery drains faster, performance loss etc.
Excuse my retarded attitude but this isn't even the 10th time here I've had to dodge people who just post crap without even reading anything, and then just move on and do the same thing over and over.
I'm going to flash a new kernel, cross my fingers and freeze a few more apps, turn plug-ins to 'on demand' and cross my fingers again.
Thanks again to everyone who really helped and peace. I added thanks to you guys.
leijonasisu said:
Thanks for being another jackass......""
Click to expand...
Click to collapse
Thank you, the same to you!
jnr21 said:
Does people think that android is windows, or why someone allways complain about low ram? People, please learn how android ram management really works.
Click to expand...
Click to collapse
yeah. stop think like windows (even though windows 7 ram management is good). andoid load it's system/app in ram to provide faster response. but once you need it more, it will clear unused app to free more ram..not to worry about that..
ascariz said:
yeah. stop think like windows (even though windows 7 ram management is good). andoid load it's system/app in ram to provide faster response. but once you need it more, it will clear unused app to free more ram..not to worry about that..
Click to expand...
Click to collapse
The problem begins when it start killing apps you are using instead of killing those bloated apps.
Sent from my GT-I9300 using xda app-developers app
Are you rooted?
If yes:
1 freeze all the bloatware
2 install v6supercharger and set lowmemorykiller values as low as possible
3 install hardswap script
4 you are done...
Now, make your own search, it is all in xda.
I gave you the hint, Nov it is up to you
Sent from my GT-I9300 using xda premium

[APK] Seeder entropy generator to provide significant lag reduction

I found this today on reddit, thought I'd share it with everyone. All credit goes to Lambgx02
I'm running this on CM10 and I've noticed a difference.
Link to OP & Download
Hey everyone,
So, I was experiencing significant lag as we all do from time to time, and decided I was going to get to the bottom of it.
After tracing and debugging for hours, I discovered the source of 90% of Android's lag. In a word, entropy (or lack thereof).
Google's JVM, like Sun's, reads from /dev/random. For all random data. Yes, the /dev/random that uses a very limited entropy pool.
Random data is used for all kinds of stuff.. UUID generation, session keys, SSL.. when we run out of entropy, the process blocks. That manifests itself as lag. The process cannot continue until the kernel generates more high quality random data.
So, I cross-compiled rngd, and used it to feed /dev/urandom into /dev/random at 1 second intervals.
Result? I have never used an Android device this fast.
It is literally five times faster in many cases. Chrome, maps, and other heavy applications load in about 1/2 a second, and map tiles populate as fast as I can scroll. Task switching is instantaneous. You know how sometimes when you hit the home button, it takes 5-10 seconds for the home screen to repopulate? Yeah. Blocking on read of /dev/random. Problem solved. But don't take my word for it .. give it a shot!
Update!
I've built a very simple Android app that bundles the binary, and starts/stops the service (on boot if selected). I'll be adding more instrumentation, but for now, give it a shot! This APK does not modify /system in any way, so should be perfectly safe.
This is my first userspace Android app, so bear with me!
Note that this APK is actually compatible with all Android versions, and all (armel) devices. It's not at all specific to the Captivate Glide.
Caveats
There is a (theoretical) security risk, in that seeding /dev/random with /dev/urandom decreases the quality of the random data. In practice, the odds of this being cryptographically exploited are far lower than the odds of someone attacking the OS itself (a much simpler challenge).
This may adversely affect battery life, since it wakes every second. It does not hold a wakelock, so it shouldn't have a big impact, but let me know if you think it's causing problems. I can add a blocking read to the code so that it only executes while the screen is on. On the other hand, many of us attribute lag to lacking CPU power. Since this hack eliminates almost all lag, there is less of a need to overclock, potentially reducing battery consumption.
If you try it, let me know how it goes.
ROM builders - feel free to integrate this into your ROMs (either the .apk / application, or just the rngd binary called from init.d)!
If anyone's interested, I've launched a paid app on the Play store for non-xda users. As I add features I'll post the new versions here as a thanks to you guys (and xda community at large for being such a great resource). But if anyone's interested in the market's auto-update feature, just thought I'd mention it
Click to expand...
Click to collapse
Thank you OP. ...
I'm going to get the playstore version for support purposes ...regardless of the xda report.
The developer worked hard on this. ...g
Tried it out, noticed an immediate, significant improvement!! If that was a placebo, the OP must have played it up to be a damn good one
I might be crazy (and I'm sure it's just a coincidence) but I seemed to notice an actual IMPROVEMENT in battery life after installing this.
Thanks for sharing!
I'm not sure if I've noticed any major improvement myself, but it has been a little zippier. I keep a very close eye on my battery, so I should be able to report any battery improvements. Hopefully I didn't waste a 1.50 on this app
Sent from my SAMSUNG-SGH-I717 using xda app-developers app
CPA Poke said:
Tried it out, noticed an immediate, significant improvement!! If that was a placebo, the OP must have played it up to be a damn good one
I might be crazy (and I'm sure it's just a coincidence) but I seemed to notice an actual IMPROVEMENT in battery life after installing this.
Click to expand...
Click to collapse
If you're using the apk method, it's literally impossible to have better battery life as mentioned by the guy who made it. It keeps your device awake a lot more often to refill the entropy. The difference may be small enough that it won't affect you but it can't actually increase your battery life.
I've been trying the apk method as well as the other ones without really seeing any concrete difference. Currently running the sysctl method since it's "free" and doesn't use any system resources.
http://www.xda-developers.com/android/entropy-seed-generator-not-all-its-hacked-up-to-be/ just a heads up
ChronoReverse said:
If you're using the apk method, it's literally impossible to have better battery life as mentioned by the guy who made it. It keeps your device awake a lot more often to refill the entropy. The difference may be small enough that it won't affect you but it can't actually increase your battery life.
I've been trying the apk method as well as the other ones without really seeing any concrete difference. Currently running the sysctl method since it's "free" and doesn't use any system resources.
Click to expand...
Click to collapse
Haha yeah, that's why I said it was probably a coincidence Said battery "improvement" has since gone away, but my device still seems to be much snappier.
Been on it since its release and it has improved my phone. I will say, don't subscribe to the main thread though, omg notification every 2 secs....its crazy....well it has slowed down slightly but wow
Well. ..
Based on the report by arcee, whom I trust as being a top tier development expert, Im going to shut down the application.
His report is accurate in disecting the hack.
The resources used to run the hack, obviously outweigh the benefits.
It's a near placebo effect modification with no tangible performance advantage beyond what the CPU can already produce with governors and clocking tweaks.
None the less, I do believe the developer to be honest in his attempt in bringing us a well executed application with sincere intentions.
That being said, a thank you is still in order, and a small price of $1.50 is certainly not to high a price considering the work and coding involved. ...g
NO. This does NOTHING. Stop it, people.
Its been a night and day difference on my phone.
Sent from my SAMSUNG-SGH-I717 using xda premium
Another tweak is always great. Thanks for the contribution.
Sent from my SAMSUNG-SGH-I717
Tasty placebo... Seriously, people are still doing this? I thought all the threads were closed as nonsense.
Agreed ..please close this thread...
The mod does nothing...and has been confirmed by XDA ..g
Edit: reported ....people, don't waste your money.
As stated on XDA: http://www.xda-developers.com/android/entropy-seed-generator-not-all-its-hacked-up-to-be/
As is always the case, anything you use here on XDA is done at your own risk, and you assume all liability for your actions. That said, there are times we pass on inaccurate information, and this is one of those times. We do applaud all of our developers for working to find fixes for the things that nag at them. However, we jumped the gun on this, without letting adequate discussion and testing take place.
Click to expand...
Click to collapse

[Q] S4 UI is laggy and it pisses me off

It pisses me off to see me and many others complain about such a basic thing as LAG in this "super powerful" device.
What is the point of all this tons of CPU, huge RAM and etc., if it cannot manage basic tasks quickly. that's great that i can play 3D games, but I want my phone to be responsive as it used to be in the beginning.
How come I need to wait for 5 seconds for my contact list to load? 3 seconds for my SMS to load, 2 seconds for an app to load in the application center. 1.5 second until it responds to a home button. You expect this kind of basic tasks to be done INSTANTLY.
So what if I have lots of contacts? Doesn't Android follow BASIC programming concepts?
That is first load the frame, then show LOADING, then load the most necessary (in that case would be the first part of the list) and then load the rest. This way it doesn't feel laggy for the user. How come it simply loads for 5 seconds without any response and then shows ALL at once.
Everything is laggy, almost anything I press takes 1-2 seconds to respond the first time. Second time is mostly instant.
Tried to clean cache of all apps, using memory cleaners, disable double home click, I am at version 4.3, using Go Launcher.
How can I find if there's a specific app that causing it? Or what should I clean to make it go smooth as it used to be when it was new? all these task managers and such don't make ANY difference. Total waste of time.
Don't mind me being pissed and thank you for your input
P.S. - My device is not rooted.
yeah....that's why i put my S4 aside and bought the G2. it's touchwiz. it's horribly optimized and has been since JB. on ICS, touchwiz was great. it was snappy, fast, awesome. it was amazing on my S3. then the S3 got JB, and it turned to utter garbage. now, every samsung phone since JB is awful.
they really need to scrap TW and code it all over again.
I'm not getting this 5 second lag. 1 and a half seconds perhaps on the contact list and I have maybe 210 people on there.
If you're getting 5 seconds of lag I think something's up. I'm getting pretty quick responses WITH Power-Saving Mode enabled. With it disabled I don't really notice anything different tbh lol.
Sorry you're having a pain of a time. If you're going to get a new phone I would suggest the Nexus 5 :laugh:
I'm stock non-rooted.
Nova Launcher
That's it.
johno86 said:
I'm not getting this 5 second lag. 1 and a half seconds perhaps on the contact list and I have maybe 210 people on there.
If you're getting 5 seconds of lag I think something's up. I'm getting pretty quick responses WITH Power-Saving Mode enabled. With it disabled I don't really notice anything different tbh lol.
Sorry you're having a pain of a time. If you're going to get a new phone I would suggest the Nexus 5 :laugh:
I'm stock non-rooted.
Nova Launcher
That's it.
Click to expand...
Click to collapse
Nah, I'm not gonna get a new phone just because of that.
Could you perhaps tell me with which accounts you sync your contact list? I would assume that's related. Also are you trying it after your has been idle for a while? (it's much more responsive when I open it the second time)
Because of all the bloat you have installed...take off go launcher lol
Sent from my SCH-I545 using xda app-developers app
Go launcher is the worst. Go to the dev settings and change animation time to 0.5x or off, get apex or nova and use the fastest animation speeds, try different dialer & messaging apps. Don't use memory cleaners or task managers just delete whatever apps you don't use. Basically avoid using as much touchwiz crap as possible lol. Also know that live wallpaper and a lot of widgets cash slow things down too. I would think keeping all the stupid proximity sensor stuff on doesn't help either.
Sent from my SCH-I545 using XDA Premium 4 mobile app
It really does suck how slow this phone is considering it's hardware. Samsung needs to hire some new people because my girlfriend's htc one is very smooth and snappy with almost no lag (minus att 's slow 4g network) I wish htc would pull their heads out of their a**es and build good phones with good cameras with removable batteries and sd cards :banghead:
Sent from my SCH-I545 using Tapatalk 2
If you go through and disable stuff like crazy it improves, but that doesn't really speak well for Samsung.
Frankly I'm done with 'em as a company.
SomeGuyDude said:
If you go through and disable stuff like crazy it improves, but that doesn't really speak well for Samsung.
Frankly I'm done with 'em as a company.
Click to expand...
Click to collapse
I agree. But with htc in the sh*tter and Samsung heading in a similar direction, what other manufacturer is worth a damn? Or even half of one?
Sent from my SCH-I545 using Tapatalk 2
I'm using nova prime as well as quite a few xposed mods including XuiMod.
All my nova settings are at faster than light, XuiMod settings are also set to fast, and I've set the transition animation scales to 0 /. 5 as well.
My S4 flies. I have no complaints at all. I've used titanium and gotten rid of all the BS too.
I agree TW has a lot going on but can be set up quite good and run quite fast. I've looked at other phones over and over again, trying to get back into flashing ROMs, but I keep landing back at my S4. It's still an awesome phone
Verizon Galaxy S4
# MJ7 #
ALL Knoxed Up!
Don't mistaken transition speed for loading/processing speed which are two totally different things. The S4 is no slouch, if it's "lagging" like you said, it's an app for sure. I nor anyone I know with an S4 has experienced this phantom lag. But then again we don't blow up our phone with launchers, widgets, or 5 different apps telling me my battery level and apps running. Try using stock everything (launchers, dialers*lol*, messaging*lol*)
Sent from my SCH-I545 using xda app-developers app
whatever61 said:
It pisses me off to see me and many others complain about such a basic thing as LAG in this "super powerful" device.
What is the point of all this tons of CPU, huge RAM and etc., if it cannot manage basic tasks quickly. that's great that i can play 3D games, but I want my phone to be responsive as it used to be in the beginning.
How come I need to wait for 5 seconds for my contact list to load? 3 seconds for my SMS to load, 2 seconds for an app to load in the application center. 1.5 second until it responds to a home button. You expect this kind of basic tasks to be done INSTANTLY.
So what if I have lots of contacts? Doesn't Android follow BASIC programming concepts?
That is first load the frame, then show LOADING, then load the most necessary (in that case would be the first part of the list) and then load the rest. This way it doesn't feel laggy for the user. How come it simply loads for 5 seconds without any response and then shows ALL at once.
Everything is laggy, almost anything I press takes 1-2 seconds to respond the first time. Second time is mostly instant.
Tried to clean cache of all apps, using memory cleaners, disable double home click, I am at version 4.3, using Go Launcher.
How can I find if there's a specific app that causing it? Or what should I clean to make it go smooth as it used to be when it was new? all these task managers and such don't make ANY difference. Total waste of time.
Don't mind me being pissed and thank you for your input
P.S. - My device is not rooted.
Click to expand...
Click to collapse
whatever61, did your phone behave like you have explained (lag) when you first bought it? If the answer is no then you have an apps/widgets/or other software on the phone causing you the problem. The ole' saying 'keep it simple stupid' kind of applies here (not saying at all that you are stupid). There are only so many resources in our phones...cpu capabilities, memory etc. The resources in our S4s are pretty significant considering the size and the limited power available. It really boils down to this...the more task you demand your phone to perform the more resources it uses and at some point it has to slow down to reallocate the limited resources it has...lag. Task managers use more resources than they save...live wallpaper is a resource hog...widgets (weather, facebook, goggle now, goggle +, pandora etc) constantly updating and running are resource hogs...contracts with added thumbnails, although "neat", take up not only memory but take longer (resources) to process when you want to look at one (when you call up a contact do you want the information or do you want to look at a picture, which one of those do you NEED?)...email and messaging apps that have to sync more than a few days of old mail/messages is a waste time and resources...Samsung has put a lot of "cute" animations and gesture sensitive "crap" on our phones...they are "cute" but not necessary and use resources. Bottom line...do a factory reset, decide what you need and "keep it simple stupid". (Again, I'm not calling you stupid!!).
Don't worry, I didn't think you are calling me stupid
Yes, if I remember correctly in the beginning it was working faster (but cannot say for sure what and where was the lag already existing and where it wasn't) and what you're saying about widgets, lots of apps and all that is very obvious and very general (thanks for the input, though). The don't install too many apps or reset to factory approach is not something I think a correct approach. I bought a super powerful phone to be able to install whatever I want on it, right?
Besides an example that I provide is that when I am in the application manager and pressing on an application it takes like 2 seconds to open up. I don't think it's related to me having too many apps.
I think that I should be able to see which app is causing the lag in each case and then make my decision based on it. Yes, I can install different task managers to show me which app is taking how much CPU and RAM, but I don't see anything exceptional there. Problem is at specific actions I do, so it would be good to see what happens (like in Chrome inspect element) when I press on the action, which processes are being launched, how much time it takes for them to complete and how much CPU was used at each process. A log like that would do the job.
Besides my post was more about the wrong engineering (see the example of the Contact list lag) and the fact that many people complain about the lag in S4 and a question if someone knows about a tool that can help me find what is causing the lag (see description of the tool above).
Thanks
richii0207 said:
Don't mistaken transition speed for loading/processing speed which are two totally different things. The S4 is no slouch, if it's "lagging" like you said, it's an app for sure. I nor anyone I know with an S4 has experienced this phantom lag. But then again we don't blow up our phone with launchers, widgets, or 5 different apps telling me my battery level and apps running. Try using stock everything (launchers, dialers*lol*, messaging*lol*)
Sent from my SCH-I545 using xda app-developers app
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I don't like "stock everything", besides seems to me like stock stuff is even more laggy.
I don't blow up my phone with stuff neither and I think the reason lies in something else (see my post above for a better explanation)
whatever61 said:
I don't like "stock everything", besides seems to me like stock stuff is even more laggy.
I don't blow up my phone with stuff neither and I think the reason lies in something else (see my post above for a better explanation)
Click to expand...
Click to collapse
I understand your frustration and your point is well taken. I don't know of a utility/app that will enable you to clearly identify an app or process that is causing the lag you experience. I know doing a Factory Reset is a big PITA and I never recommend that to someone unless I know of no other "cure" for the problem. And, sometimes a Factory Reset isn't the cure either. But often it is. The reason I recommended Factory Reset is that it is about the only way you can (that I know of) start with a "clean" phone and nail down the app or apps that are causing a problem as you reinstall them one or two at a time. I have a developer edition S4, rooted and bootloader unlocked, and I usually will do a factory reset every two or three weeks even while running a ROM that has been debloated and "fine tuned". It usually improves battery life and the phone works smoother...or maybe it's just my imagination, but I don't think so. Anyway, good luck, hope you find the problem. Maybe some wise ole' guy will come along and point you in the right direction.
whatever61 said:
I don't like "stock everything", besides seems to me like stock stuff is even more laggy.
I don't blow up my phone with stuff neither and I think the reason lies in something else (see my post above for a better explanation)
Click to expand...
Click to collapse
Well, for the most reliable experience, it is always best to stick with stock.
My advice is to run stock everything for a day to see if that's the problem. Your other option would be a factory reset in which I am trying to make you avoid.
Do you have 3rd party apps installed like sms/launcher/dialer/lockscreen/etc.? I can't imagine the amount of processes going on if someone had all those apps installed.
Sent from my SCH-I545 using xda app-developers app
I really dont understand why people complain about this so called lag. I've had no such thing since I got my s4 right when they came out.
My girlfriend gets her S4 acting all strange sometimes too, can seem laggy. However she is constantly downloading music and she uses like 3 programs to do so. I've had to remove quite a few of those apps and then it's working like new again. Sometimes a lot of the apps available out there just aren't the best and can screw things right up I think. I've had none of the issues she's had. Mine has been fast as hell since day one. And hers is back to normal too, I just have to keep an eye on her!!
Verizon Galaxy S4
# MJ7 #
ALL Knoxed Up!
This post is ancient, but I still got the problem
I am just curious if other S4 users have the same problem or most don't ?
Then I will know that something is possible to do for sure, at least..

[Q] Phone doesn't run so great anymore

So, after 8 months of use, my M8 is finally in a situation where I'm kind of sick of it running so poorly. In the past I've always had these issues over time, but I always contributed it mainly to running custom ROM's. Well, when I got my M8, it ran so well I decided to leave it stock. Well it's finally starting to hit a wall and it's more of a frustration than a joy to use. Swype is borderline impossible to use since it lags so bad, freezes are infrequent but occur, etc etc.
So my question is, what are the most likely contributors? Apps that run in the background? Too many apps? Too much space used? I can't think of much else, since, like I said, it's still fully stock. Or is this just what I have to expect from a phone?
Do you clear the cache in your app settings. If you game a lot than I would definitely start with the game apps first.
Cachemate for root users
https://play.google.com/store/apps/...chemate&pcampaignid=APPU__rOUVPowg5TJBNTAgKAD
Android 5.0.1 is pretty lag free in my opinion
cgibsong002 said:
So, after 8 months of use, my M8 is finally in a situation where I'm kind of sick of it running so poorly. In the past I've always had these issues over time, but I always contributed it mainly to running custom ROM's. Well, when I got my M8, it ran so well I decided to leave it stock. Well it's finally starting to hit a wall and it's more of a frustration than a joy to use. Swype is borderline impossible to use since it lags so bad, freezes are infrequent but occur, etc etc.
So my question is, what are the most likely contributors? Apps that run in the background? Too many apps? Too much space used? I can't think of much else, since, like I said, it's still fully stock. Or is this just what I have to expect from a phone?
Click to expand...
Click to collapse
I kept my phone stock for quite some time because I felt I didn't need to change anything, until last week because I was tired of radio issues. Bottom line, ATT sucks at getting updates out, so if your running stock, your firmware is like three updates back. I see a massive improvements in speed and battery with 3.28.1540.5. If you know how, I would S-OFF and upgrade firmware to that and flash the debloated custom stock Rom that comes with root and SU. There are straight forward instructions in the att m8 development thread.
pwarr said:
I kept my phone stock for quite some time because I felt I didn't need to change anything, until last week because I was tired of radio issues. Bottom line, ATT sucks at getting updates out, so if your running stock, your firmware is like three updates back. I see a massive improvements in speed and battery with 3.28.1540.5. If you know how, I would S-OFF and upgrade firmware to that and flash the debloated custom stock Rom that comes with root and SU. There are straight forward instructions in the att m8 development thread.
Click to expand...
Click to collapse
I might look into this. What I don't get though.. I can understand if new updates are quicker. That makes sense. What doesn't, is how ridiculously poor my phone runs compared to the first few months I had it. It's been like this for every phone I've had. I don't game, I don't have all that many apps. In my running app list, the only self installed things there are Facebook and Swype. I have plenty of extra storage internal and on my SD. So what is it that causes such poor performance over time? I'll definitely have to check out the newer roms and finally s-off.. but I've done plenty of custom roms before with other phones and the same thing always happens, things run fine for a bit and then slowly go to crap.
Bump
Sent from my HTC One_M8 using XDA Free mobile app
cgibsong002 said:
I might look into this. What I don't get though.. I can understand if new updates are quicker. That makes sense. What doesn't, is how ridiculously poor my phone runs compared to the first few months I had it. It's been like this for every phone I've had. I don't game, I don't have all that many apps. In my running app list, the only self installed things there are Facebook and Swype. I have plenty of extra storage internal and on my SD. So what is it that causes such poor performance over time? I'll definitely have to check out the newer roms and finally s-off.. but I've done plenty of custom roms before with other phones and the same thing always happens, things run fine for a bit and then slowly go to crap.
Click to expand...
Click to collapse
Its hard to say what is causing your issue, and aside from saying Swype is lagging (might be an issue with that app itself) and the phone "doesn't run so great anymore" you really haven't provided any specifics of what the problem is. You also haven't indicated if you tried to clear cached as jball suggested, and if so, if it helped at all.
Might be some runaway (poorly coded) AT&T bloat apps. But in general, apps running in the background will not slow the system down much. There are various apps to track battery and memory usage, so you might try one of those, to determine if any particular apps are the culprit.
I can't say I've seen any lag on my M8, but I switch ROMs fairly occasionally, and keep it updated to current Android builds (thanks to s-off). Clearing up your data partition alone might help (but might now, on the other hand) so you might also consider backing up any personal data and doing a factory reset. Wiping the slate clean might solve your issue.
Ok.. well a lot info there but one step at a time. I realized my phone is Sunday unusable with Wi-Fi turned on.. which is quite interesting and I'm pretty lost on this one. With Wi-Fi on, it's like my entire phone stops, not just the actual internet speeds. Apps like Facebook take ten seconds just to load, and then the actual content takes sometimes 15 seconds to load or maybe not even at all. Also, keep in mind, my actual internet speeds are fine, and even test perfectly fine on my phone.
As soon as I turn off Wi-Fi, it seems everything on my phone I'd dramatically quicker and everything loads near immediate. I've tried restarting my phone, cycling airplane mode, not really sure what else to do.
Sent from my HTC One_M8 using XDA Free mobile app
cgibsong002 said:
Ok.. well a lot info there but one step at a time. I realized my phone is Sunday unusable with Wi-Fi turned on.. which is quite interesting and I'm pretty lost on this one. With Wi-Fi on, it's like my entire phone stops, not just the actual internet speeds. Apps like Facebook take ten seconds just to load, and then the actual content takes sometimes 15 seconds to load or maybe not even at all. Also, keep in mind, my actual internet speeds are fine, and even test perfectly fine on my phone.
As soon as I turn off Wi-Fi, it seems everything on my phone I'd dramatically quicker and everything loads near immediate. I've tried restarting my phone, cycling airplane mode, not really sure what else to do.
Sent from my HTC One_M8 using XDA Free mobile app
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Click to collapse
Does it happen anywhere you use WiFi? If so maybe try fully wiping and flashing the firmware, or just bust out the ruu to make it easier, can't hurt to try it should help tho
Did you even try to wipe cache, as has been suggested twice previously?
Otherwise, if no major system changes, and the phone has just been running worse and worse, a factory reset may help; as I would have to think it may be 3rd party apps that are to blame. Backup your personal data, factory reset, and just start to install a minimum of apps, and see how it runs.
If still no improvement, the above comment to try to RUU is not a bad idea, either. RUU provides a fully "blank slate" and may solve your issue.

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