Develop Bugs

[Q] GPU Acceleration

Been thinking about this for a while. Exactly what type of apps benefit the most from having GPU Acceleration enabled and what type of apps have bad side-effects from having it enabled? I noticed that if you have it enabled and try to click on the weather graph in the "News&Weather" app it produces a foreclosure.
Sent from my Galaxy Nexus using XDA

Hi,
I take you mean "force GPU acceleration"?
The setting in the dev section of the phone just forces it on, it doesn't "enable" it...
What I can think of is "old" games and graphic intense apps, not supported and developed anymore ... or very rarely apps that don't support this GPU.

SynFox said:
Hi,
I take you mean "force GPU acceleration"?
The setting in the dev section of the phone just forces it on, it doesn't "enable" it...
What I can think of is "old" games and graphic intense apps, not supported and developed anymore ... or very rarely apps that don't support this GPU.
Click to expand...
Click to collapse
You're right I did mean to put "force GPU acceleration" lol. It just seemed weird to me that it borks the weather graph in the News&Weather app and causes it to force close. I've had it enabled for a while then I disabled it didn't really see any difference in most apps[games & everyday apps] I've tried.

Double Post

Yeah I just left it off and I never had any problems ... if there EVER occurs to be any lag or something in a graphic intense app I'll turn it on.
As long as there aren't any problems, I'll just leave it off, I don't think there is much benefit, if at all, for 99,9% of the apps

Try Facebook without gpu acceleration just scroll down and look at the frame rate its just not smooth. Enable gpu acceleration swipe Facebook off from task and do the same scrolling again.
By scrolling I mean. Flick your finger and let go.... difference is massive in smoothness . If you can't see it theres clearly something wrong with your eyes
Sent from my Galaxy Nexus using xda premium

MattSkeet said:
Try Facebook without gpu acceleration just scroll down and look at the frame rate its just not smooth. Enable gpu acceleration swipe Facebook off from task and do the same scrolling again.
By scrolling I mean. Flick your finger and let go.... difference is massive in smoothness . If you can't see it theres clearly something wrong with your eyes
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
i just tried it, its horrible.
out of curiosity, leaving gpu acceleration on will impact battery life no?

sheek360 said:
out of curiosity, leaving gpu acceleration on will impact battery life no?
Click to expand...
Click to collapse
No.
10 characters

sheek360 said:
i just tried it, its horrible.
out of curiosity, leaving gpu acceleration on will impact battery life no?
Click to expand...
Click to collapse
What's horrible?? With or without gpu acceleration????
Sent from my Galaxy Nexus using xda premium

MattSkeet said:
What's horrible?? With or without gpu acceleration????
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
Think about it.....
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2D GPU aceleration doubts

Hi, what is the advantages and disadvantages of enable GPU acceleration 2D in development options?

That is a developer option for a reason. It leads to instability in some apps and benefits in others. The majority of the apps, it leads to instability.
Sent from my Galaxy Nexus using xda premium

msavic6 said:
That is a developer option for a reason. It leads to instability in some apps and benefits in others. The majority of the apps, it leads to instability.
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
not true. it does force some apps to use hardware acceleration instead of software acceleration, but it does not lead to instability. it will make ui animations and scrolling smoother overall.

And less batery, no?
Enviado desde mi Galaxy Nexus usando Tapatalk 2

coldrazor said:
And less batery, no?
Enviado desde mi Galaxy Nexus usando Tapatalk 2
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Click to collapse
in theory. but it might be too small a difference really.

simms22 said:
in theory. but it might be too small a difference really.
Click to expand...
Click to collapse
yeah, you're either consuming processor power to run the software, or using the power to run the gpu

simms22 said:
not true. it does force some apps to use hardware acceleration instead of software acceleration, but it does not lead to instability. it will make ui animations and scrolling smoother overall.
Click to expand...
Click to collapse
But apps that are smooth without the option ticked ( twitter for example ) become laggy after enabling the option. This is what I meant by *instability*
Sent from my Galaxy Nexus using xda premium

Two other people aside from me have android phones on ICS or JB in my office. Last week we all agreed to enable force 2d rendering.
Nobody is complaining about upset apps, and everyone complains less about their battery life (esp my friend with an evo 3d, worst BL ever on that device). My results aren't very scientific, especially with regard to battery life, but we def haven't experienced any app related issues.
Also miui has smoother animations on the lock screen and in other parts of the ROM. V4 Lock screen was choppy before, but now is very smooth.
Sent from my Galaxy Nexus using xda premium

jordanishere said:
Two other people aside from me have android phones on ICS or JB in my office. Last week we all agreed to enable force 2d rendering.
Nobody is complaining about upset apps, and everyone complains less about their battery life (esp my friend with an evo 3d, worst BL ever on that device). My results aren't very scientific, especially with regard to battery life, but we def haven't experienced any app related issues.
Also miui has smoother animations on the lock screen and in other parts of the ROM. V4 Lock screen was choppy before, but now is very smooth.
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
My experience with the option on has been a negative one. It all depends on the apps you have installed.
Sent from my Galaxy Nexus using xda premium

The SiriusXM app locks the F up and freezes the entire phone for me. No 2D for this kid!

Never encountered a problem with an app with that option enabled. Always had it enabled. Then again I am not an app person so I do not use many apps at all. Some of the apps I have the option definitely helps with the smoothness in scrolling. WhatsApp is one of them I believe.

simms22 said:
not true. it does force some apps to use hardware acceleration instead of software acceleration, but it does not lead to instability. it will make ui animations and scrolling smoother overall.
Click to expand...
Click to collapse
That is misleading. It can lead to instability in apps. The fact that you cannot choose the option for each app...that leads to general instability across the board.
Unless you don't use your phone for apps.

Not all apps perform better forcing acceleration.
Google made that abundantly clear with Project Butter in JB. They use acceleration from both GPU and CPU. Forcing acceleration removes CPU acceleration for the app as well.
That said, some of it is placebo too. Obviously most apps are closed source, but I wonder how many people are calling forced acceleration faster on apps, that have already been compiled with GPU acceleration to be used? Its literally just a checkbox to enable when building.

Try flipboard with and without GPU. Open a link within the app and you will see a huge difference.
Gesendet von meinem Nexus 7 mit Tapatalk 2

i remember when i was still on ICS, i enable this option, and all game were really noticeably ran smoother, but not anymore now on JB, may be now i have overclocked GPU

madphone said:
Try flipboard with and without GPU. Open a link within the app and you will see a huge difference.
Gesendet von meinem Nexus 7 mit Tapatalk 2
Click to expand...
Click to collapse
Flipboard works perfectly smooth with me not touching the Developer options. Probably because it was compiled with acceleration enabled.
Never underestimate the power of placebo. People will defend it with their dying breath.

The apps meant to be accelerated is, those who aren't I believe doesn't benefit from the option... It just makes the app working in ways it wasn't built for
Its just my thoughts.. No facts
Skickat från min Galaxy Nexus via Tapatalk 2

norpan111 said:
The apps meant to be accelerated is, those who aren't I believe doesn't benefit from the option... It just makes the app working in ways it wasn't built for
Its just my thoughts.. No facts
Skickat från min Galaxy Nexus via Tapatalk 2
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Click to collapse
You are 100% correct. The instability issues crop up because how the app was coded does not work properly with acceleration. This obviously isn't all apps, but certainly is some. I *think* the reasoning that not all apps are accelerated is for backwards compatibility. That, or the app simply runs better with the CPU pushing it and not the GPU. Google employees have posted in the past that some things simply work better with the CPU.

There are cases where it does make the app more smooth and all - but there's a caveat: some apps may break. For instance, the news and weather widget - tap the temperature scale and you're supposed to get a precipitation reading... that glitches out.
And for that, I turned it off cause I don't know what other apps get affected by it. Personally, I DO notice a difference in the app's performance.
On jelly bean, btw...despite project butter doing its "thang".
sent from my mini tractor

aeoveu said:
There are cases where it does make the app more smooth and all - but there's a caveat: some apps may break. For instance, the news and weather widget - tap the temperature scale and you're supposed to get a precipitation reading... that glitches out.
And for that, I turned it off cause I don't know what other apps get affected by it. Personally, I DO notice a difference in the app's performance.
On jelly bean, btw...despite project butter doing its "thang".
sent from my mini tractor
Click to expand...
Click to collapse
Hold on hold on hold on.. Wait a minute here... Mini tractor?
Skickat från min Galaxy Nexus via Tapatalk 2

(Q) CHUNKENESS (LAG) on all roms and stock....why?

I just did a full unroot twice and being on stock seems somewhat smoother and less "chunky" than any of thr custom roms I have tried. All clean installs. I would appreciate any idea why I still have stutters and not fluid motions on anything.
Sent from my SAMSUNG-SGH-I317 using xda app-developers app

Jt004 said:
I just did a full unroot twice and being on stock seems so much smoother and less "chunky" than any of thr custom roms I have tried. All clean installs. I would appreciate any idea why?
Sent from my SAMSUNG-SGH-I317 using xda app-developers app
Click to expand...
Click to collapse
Truthfully...it's not.
http://forum.xda-developers.com/showthread.php?t=2028661
This rom when installed correctly blows stock out of the water. Add the Nova launcher..and tweak the settings...and you will see exactly what I mean.Use the latest TWRP..and wipe correctly...and you won't want to go back to stock...ever.
He has a new update coming soon...which will add even more to it.
No need to go full unroot if you have Triangle away & TWRP
Mac

Whatever im on, scrolling is just chunky and switching between apps even with jelly thunder....it is much less on stock but still there
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Jt004 said:
Whatever im on, scrolling is just chunky and switching between apps even with jelly thunder....it is much less on stock but still there
Sent from my SAMSUNG-SGH-I317 using xda app-developers app
Click to expand...
Click to collapse
Don't know what to tell ya...mine doesn't. Are you using Nova ? In it..you can change the settings to increase the speed for what your wanting..
Mine even without it isn't chunky or stutter..but is much much faster with the tweaks enabled in Nova.
Mac

Mac11700 said:
Don't know what to tell ya...mine doesn't. Are you using Nova ? In it..you can change the settings to increase the speed for what your wanting..
Mine even without it isn't chunky or stutter..but is much much faster with the tweaks enabled in Nova.
Mac
Click to expand...
Click to collapse
Yea used nova and "speed of light setting" still stutters a bit
Anyone else having this problem???
Sent from my SAMSUNG-SGH-I317 using xda app-developers app

Im on the same side. Been a flashaholic for years and noticed stock ROM always equal or better. Maybe not about performance But MOST Are Battery Life which I need the most. Enjoying stock 4.12 int S. Africa ROM now and no need to flash anything else.
♥★★♥ AT&T Galaxy Note II ♡☆☆♡

sweetboy02125 said:
Im on the same side. Been a flashaholic for years and noticed stock ROM always equal or better. Maybe not about performance But MOST Are Battery Life which I need the most. Enjoying stock 4.12 int S. Africa ROM now and no need to flash anything else.
♥★★♥ AT&T Galaxy Note II ♡☆☆♡
Click to expand...
Click to collapse
Do you have any stutter or chunkness on stock?
Thanks for imput guys!
Edit: stutters on stock as well...expecially scrolling
Sent from my SAMSUNG-SGH-I317 using xda app-developers app

Jt004 said:
Do you have any stutter or chunkness on stock?
Thanks for imput guys!
Edit: stutters on stock as well...expecially scrolling
Sent from my SAMSUNG-SGH-I317 using xda app-developers app
Click to expand...
Click to collapse
No issues here with any of 3 different roms. What apps are you running or is it like this immediately after flashing? sounds like something is running in the background causing your problem. Is media scan running constantly? Need more info on what is going on in the background to diagnose.
Sent from my SAMSUNG-SGH-I317 using xda premium

lol.....WTF is Chunkness?????
is this an acceptable android term that i missed.....lol

Lol the chunkeness monster :what:
Sent from my SAMSUNG-SGH-I317 using Tapatalk 2

the2rrell said:
lol.....WTF is Chunkness?????
is this an acceptable android term that i missed.....lol
Click to expand...
Click to collapse
He is meaning thishttp:// http://www.thefreedictionary.com/_/dict.aspx?word=clunky
The stock rom is chunky. ..it's full of bloat. ..
Most custom roms are de-bloated already.
Sounds like he had a bad install. ..and flashed a stock rooted rom...
Mac

Maybe try to reduce the Animated Scale setting under Settings - Developer Options from 1x to 0.5x or below? Toggle GPU rendering setting in there as well.
I also agree that a lot is dependent on your launcher. Nova is good to compare too *only* if you optimize it's settings to set all to "Faster than light"

the2rrell said:
lol.....WTF is Chunkness?????
is this an acceptable android term that i missed.....lol
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Click to collapse
tyshemi said:
Lol the chunkeness monster :what:
Sent from my SAMSUNG-SGH-I317 using Tapatalk 2
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Click to collapse
haha...I am meaning the phone stutters and lags durring scrolling and moving between windows and applications even when using nova and faster than light settings with the transitions to 0.5. It does not seem smooth as it is supposed to be.

I agree. Rooted doesn't scroll as well.
tyshemi said:
Lol the chunkeness monster :what:
Sent from my SAMSUNG-SGH-I317 using Tapatalk 2
Click to expand...
Click to collapse
I'm on the newest version of CleanRom. I much prefer it to stock. There are a lot of features I can't live without. Still, the price you pay is with scrolling. It's jerky compared to stock, especially when you are slow scrolling. Fast scrolling is not an issue.

Yeah, I don't know what you talking about. I'm running Jedi X6.1.2 and I don't feel a performance difference, but I do have a lot of nice goodies stock doesn't have.

OP should make a video to show people his problem
I experience none of that with jedi or cleanrom
Sent from my SGH-I317M using xda app-developers app

I know what he means. I also started a thread about jerky scrolling. Some people seem to have decent eyes they just dont realize or never seen a fluid scrolling capable samsung rom. My stock browser is buttery smooth even with heavy picture loaded wep pages. However tapatalk and facebook and some apps are super jerky. Even setting menu of phone is very jerky. Unbelievable. They are jerky when u scroll only with medium speed. If you scroll very slow or very fast its smooth.
This is very annoying for me. So I flashed every available rom and kernel and tried every rom/kernel combo. I think I found the solution.
Seems like The problem is caused by cpu governer + rom type. So I tried some stock roms that are very smooth and that are jerky.
I got the best scrolling with note2core kernel and ONLY IF you select iNTERACTIVE governer. Perseus and other kernels only have pegasusq governer. Once I made it interactive they all became super smooth.
If you are running perseus kernel or such u can also test this by selecting "performance" governer. It basically keeps your cpu in highest level. And your scrolling becomes buttery smooth.
It has something to do with cpu levels I guess. With pegasusq there is not much load to trigger higher cpu levels so it uses low levels.
I suggest you to try note2core with interactive governer.
Sent from my SAMSUNG-SGH-I317 using Tapatalk 2

warfanax said:
I know what he means. I also started a thread about jerky scrolling. Some people seem to have decent eyes they just dont realize or never seen a fluid scrolling capable samsung rom. My stock browser is buttery smooth even with heavy picture loaded wep pages. However tapatalk and facebook and some apps are super jerky. Even setting menu of phone is very jerky. Unbelievable. They are jerky when u scroll only with medium speed. If you scroll very slow or very fast its smooth.
This is very annoying for me. So I flashed every available rom and kernel and tried every rom/kernel combo. I think I found the solution.
Seems like The problem is caused by cpu governer + rom type. So I tried some stock roms that are very smooth and that are jerky.
I got the best scrolling with note2core kernel and ONLY IF you select iNTERACTIVE governer. Perseus and other kernels only have pegasusq governer. Once I made it interactive they all became super smooth.
If you are running perseus kernel or such u can also test this by selecting "performance" governer. It basically keeps your cpu in highest level. And your scrolling becomes buttery smooth.
It has something to do with cpu levels I guess. With pegasusq there is not much load to trigger higher cpu levels so it uses low levels.
I suggest you to try note2core with interactive governer.
Sent from my SAMSUNG-SGH-I317 using Tapatalk 2
Click to expand...
Click to collapse
Thanks for your detailed response. ..will try and give some feedback
Sent from my SAMSUNG-SGH-I317 using xda app-developers app

Just changed to interactive and very laggy more than before even when forcing all cores online. Ran benchmark it ranged from 30 fps to 62 fps.
I want to exchange at att store but dont know what to tell them..any help is greatly appreciated
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Jt004 said:
Just changed to interactive and very laggy more than before even when forcing all cores online. Ran benchmark it ranged from 30 fps to 62 fps.
I want to exchange at att store but dont know what to tell them..any help is greatly appreciated
Sent from my SAMSUNG-SGH-I317 using xda app-developers app
Click to expand...
Click to collapse
the lag should be enough, i did it on my galaxy s3 i had one that seemed to have alot of micro lag......if they can see it they should replace it. Most likely they will ask you to show them the problem, tell them you have a friend with the note 2 and you dont see any of this on his phone and think that it must be a bad unit. they should just replace it if its within the alotted time. just keep complaining you didnt pay that much money for a device to be as laggy as a last years gen phone and so on blah blah blah.....they should give you a new one.

force gpu rendering and battery life

I've read conflicting things about this. Does this option use more battery or does it conserve it?

clankfu said:
I've read conflicting things about this. Does this option use more battery or does it conserve it?
Click to expand...
Click to collapse
From my under standing all it does is use more memory. But it does help with performance
Sent from my SPH-L710 using Tapatalk 2

bog3nator said:
From my under standing all it does is use more memory. But it does help with performance
Sent from my SPH-L710 using Tapatalk 2
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Click to collapse
So no effect on battery life?

This won't have much affect on almost anything we use due to almost all apps, if not all, already utilize the GPU for rendering so it really won't help us.
Sent from my SPH-L710 using Tapatalk 2

If you have the ability depending on your ROM, just disable HW overlays so you utilize the GPU better by only using it for screen compositing.
Sent from my Transformer using xda app-developers app

[Q] scrolling lags on XDA apps ?

Hi.
I want to you have some lag/freeze when you scroll in thread with xda apps.
Thanks

ppn7 said:
Hi.
I want to you have some lag/freeze when you scroll in thread with xda apps.
Thanks
Click to expand...
Click to collapse
i am using XDA Premium nothing noticed so far its smooth,
Could you clear Cache for this app and Data and re setup and try again .

I get it sometimes, depending on what kernel / rom I'm using. I use it to test kernel / rom smoothness as a test.
Sent from my GT-N7100 using xda premium

Thanks in fact i'm using perseus kernel, but i think it depend on which apps i'm using. On some apps i have no lag.
I also use pheonix rom, but if i want to eliminate these lags, i'll loose some battery life.
I think i'll buy zerolemon battery and put higher settings on the kernel. But i really need the settings for color on perseus kernel and i don't know if any other kernel use it?

If you're on Stock Rom then there'll be lag, in xda, in Tapatalk, when scrolling in my files and almost everywhere else. But since I moved to Android Revolution HD, almost 50% of those lag things are gone. Now when I scroll through Tapatalk, or in Twitter, it's just smooth as hell. Well not iOS or WP smooth, but for Android it's more than enough. Honestly I've never believed or seen a droid phone could perform this fluidly.
I sounded like a custom Rom fan, but let me tell you, I actually hate them, and always preferred stock ROMs, but this ARHD is something.
Sent from my GT-N7100 using Tapatalk 2

I just tick force GPU rendering and disable hardware overlays in developers options and lags are gone on my stick rom. Shrugs.
Sent from my GT-N7100

@rbiter said:
I just tick force GPU rendering and disable hardware overlays in developers options and lags are gone on my stick rom. Shrugs.
Sent from my GT-N7100
Click to expand...
Click to collapse
That does work, but some apps...most noticeably the email app doesn't play nice with that setting.

madpete said:
That does work, but some apps...most noticeably the email app doesn't play nice with that setting.
Click to expand...
Click to collapse
Really? Because I recently have left both those ticked because I haven't had any other problems in other apps. Never had a problem with email app ever. I ticked both of those approximately two months ago and still haven't run into any color or cache scrolling problems. Heck it seems a couple of other apps lost the infamous xda lag. Cant believe xda app is still laggy.
Sent from my GT-N7100

@rbiter said:
Really? Because I recently have left both those ticked because I haven't had any other problems in other apps. Never had a problem with email app ever. I ticked both of those approximately two months ago and still haven't run into any color or cache scrolling problems. Heck it seems a couple of other apps lost the infamous xda lag. Cant believe xda app is still laggy.
Sent from my GT-N7100
Click to expand...
Click to collapse
Try this: Set it on, go into the email app and click into an email (not just inbox but an email) now scroll quickly. For me I always see distortion...I've tried many times with different roms / kernels but its always the same. Not a biggy though, I just use another email app now
Edit: Im talking about the email app not gmail app btw.

Lol. That is due to Mali's slower fill rate. And once you scroll through all of it, it doesn't do it anymore. Same in the browsers. You're less likely to see that on a power vr or adreno platform.
Sent from my GT-N7100

@rbiter said:
Lol. That is due to Mali's slower fill rate. And once you scroll through all of it, it doesn't do it anymore. Same in the browsers. You're less likely to see that on a power vr or adreno platform.
Sent from my GT-N7100
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Click to collapse
Ahh I see, though distortion is distortion, whatever the reason
It annoyed me anyway, so i changed email app. All good now.

I already have gpu rendering enabled. But i didn't try to disable overlays hardware gpu. I'll try thanks!

@rbiter said:
I just tick force GPU rendering and disable hardware overlays in developers options and lags are gone on my stick rom. Shrugs.
Sent from my GT-N7100
Click to expand...
Click to collapse
God I am so stupid! I fell for this, flashed back Stock ROM and enabled those options! Now after half an hour I am flashing back ARHD and restoring backup.
Thanks a lot for wasting my 30 mins and the rickshaw tour from my Ferrari.

madpete said:
Ahh I see, though distortion is distortion, whatever the reason
It annoyed me anyway, so i changed email app. All good now.
Click to expand...
Click to collapse
It has nothing to do with gpu rendering. You can replicate it in many browsers with it with out GPU rendering ticked. It can minor or major issues but I just haven't run into any lately, so for now it stays permanently ticked til I come across something elsemucked up.
Sent from my GT-N7100

@rbiter said:
It has nothing to do with gpu rendering. You can replicate it in many browsers with it with out GPU rendering ticked. It can minor or major issues but I just haven't run into any lately, so for now it stays permanently ticked til I come across something elsemucked up.
Sent from my GT-N7100
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Click to collapse
Hmmm, I only see it with Force GPU enabled.

Lags still here even if i activate 2 options on developers tools about gpu.