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Did you know that Samsung has a system called DVFS that basically does nothing other than cripping your phone's performance with aggressive underclocking? There's a big thread about it here, but other than that, it seems that this issue is not very well known, which is surprising considering the SGS4 is a very mainstream phone. When I discovered about it I was shocked because this system does literally nothing useful, but it makes gaming or other high end smartphone activities (heavy browsing, 3D games, heavy multitasking, etc) lag like crazy.
It shocks me that Samsung has implemented such a thing and that you cannot disable without rooting (and obviously voiding the warranty and your Knox flag), and nobody except a few XDA users noticed.
MarkMRL said:
Did you know that Samsung has a system called DVFS that basically does nothing other than cripping your phone's performance with aggressive underclocking? There's a big thread about it here, but other than that, it seems that this issue is not very well known, which is surprising considering the SGS4 is a very mainstream phone. When I discovered about it I was shocked because this system does literally nothing useful, but it makes gaming or other high end smartphone activities (heavy browsing, 3D games, heavy multitasking, etc) lag like crazy.
It shocks me that Samsung has implemented such a thing and that you cannot disable without rooting (and obviously voiding the warranty and your Knox flag), and nobody except a few XDA users noticed.
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You say it does nothing useful, but what does it do for battery life?
s14sh3r said:
You say it does nothing useful, but what does it do for battery life?
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Nothing? The phone already has extensive battery saving options, and it already has an underclocking option right there. Not to mention, swappable battery. Why is this thing enforced on everyone? If you use your flagship tier phone like it was an old Nokia from the nineties then it might not affect you. Since I use my phone for browsing internet, multimedia, and games, it does affect me a lot. I don't give a flying **** about one hour of additional battery when my phone slows down to a crawl. If I wanted to enable crawl mode I should have the option, the phone shouldn't decide arbitrarily when to slow down.
Also, if you really want to get into conspiracy theories, what makes you think this isn't a marketing ploy by samsung? To force users to get the S5 because the old one has such poor performance in games and stuff like that? The average smartphone user is so dumb he wouldn't realize it's all planned right in the system itself, they'd go " hurr, my phone can't run games well anymore, better go out and buy the S5, that will surely play games better, with it's multiple megapixels and cores and newer stuff I have no clue about".
MarkMRL said:
Nothing? The phone already has extensive battery saving options, and it already has an underclocking option right there. Not to mention, swappable battery. Why is this thing enforced on everyone? If you use your flagship tier phone like it was an old Nokia from the nineties then it might not affect you. Since I use my phone for browsing internet, multimedia, and games, it does affect me a lot. I don't give a flying **** about one hour of additional battery when my phone slows down to a crawl. If I wanted to enable crawl mode I should have the option, the phone shouldn't decide arbitrarily when to slow down.
Also, if you really want to get into conspiracy theories, what makes you think this isn't a marketing ploy by samsung? To force users to get the S5 because the old one has such poor performance in games and stuff like that? The average smartphone user is so dumb he wouldn't realize it's all planned right in the system itself, they'd go " hurr, my phone can't run games well anymore, better go out and buy the S5, that will surely play games better, with it's multiple megapixels and cores and newer stuff I have no clue about".
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Good points. I'm not arguing against you, btw, I'm not even sure how to tell if my phone is using it since I'm using Omega ROM.
s14sh3r said:
Good points. I'm not arguing against you, btw, I'm not even sure how to tell if my phone is using it since I'm using Omega ROM.
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Well, if you play any game or if you browse a lot you'd probably notice because performance drops a lot and lag increases. I don't know what Omega Rom is, this is an issue in stock rom. Of course it doesn't affect me anymore because I have the knowledge to research this stuff and eventually find a solution (even though I obviously have no idea how the solution is made), but for the average user this should be an issue, I mean everyone should know about it, it's too shady to be ignored, this is planned obsolescence at its finest.
Also, if this was introduced to save battery, how come so many people are complaining about battery drain on Kitkat?
It's obviously a marketing strategy, and I will spread the word about it.
There's a technical paper on dvfs around which goes through some of the techniques samsung uses to optimise performance and battery use. https://events.linuxfoundation.org/images/stories/pdf/lcjp2012_ham.pdf
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planetf1 said:
There's a technical paper on dvfs around which goes through some of the techniques samsung uses to optimise performance and battery use. https://events.linuxfoundation.org/images/stories/pdf/lcjp2012_ham.pdf
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I don't care and I don't have the knowledge to understand anything in that document.
What I care about is:
Galaxy S4 on 4.3 and under: great performance, no issues.
Galaxy S4 on 4.4: awful performance, issues.
Other phones on 4.4: great performance, no issues.
It's no coincidence this happened only a few months before the S5 is released.
Either Samsung did something wrong with this implementation, or they did indeed do it to force users to upgrade because the older model is no longer viable for high end smartphone use.
planetf1 said:
There's a technical paper on dvfs around which goes through some of the techniques samsung uses to optimise performance and battery use. https://events.linuxfoundation.org/images/stories/pdf/lcjp2012_ham.pdf
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This has nothing to do with the user-space policies which you're complaining about.
Will deleting the twDVFS.apk be sufficient to disable this frequency scaling on my S4? Or is using the Xposed module necessary?
delete
Has Samsung debloating been quantified or are we operating on an 'action bias'? 'I took action so it MUST be effective. I even perceive more battery life !' This happens when we buy cars, golf clubs, computers and maybe when we debloat?
Has anyone compared two identical phones with identical software and shown before and after performance numbers over a significant time-frame? If not, we may be operating on assumption and action bias. This would be an outstanding XDA study and article.
FWIW I use a non-rooted S6, Nougat, and disabled stock apps and processes I don't need via BK Disabler 3 days ago. Can't perceive any improvement in battery. Had no performance issues before debloating and perceive no improvement post-debloat.
There are many guides on XDA that advertise the wonders of debloating your device, it's not rocket science really, less apps running in the background and less apps waking up the device from sleep equals more battery life out of your device.
Since you've disabled your apps, you can take it to the next step by reading this Well-known guide on getting the most out of your battery.
Good luck
So I just picked up a pixel 3 and the battery life is fairly mixed but I guess I was spoiled with my previous device (Oneplus 5).
Will installing a custom kernel improve my battery life? I haven't really bothered since my Galaxy S2 which was a shambles.
If so, are there any specific kernels which aim to do this by default?
My opinion is that this is all imaginary.
android8bit said:
So I just picked up a pixel 3 and the battery life is fairly mixed but I guess I was spoiled with my previous device (Oneplus 5).
Will installing a custom kernel improve my battery life? I haven't really bothered since my Galaxy S2 which was a shambles.
If so, are there any specific kernels which aim to do this by default?
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A custom kernel typically gives you the option to customize the way it behaves. Increased battery life will come at the expense of performance. But even then you won't see a major difference. The biggest battery killer is poor cell service. Also, eliminate apps that run in the background, at least the ones you don't need running all the time. Screen brightness is another large battery user. Google does a pretty good job of optimizing the kernel out of the box.
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They used to, quite a bit. But most of that went away with O. There just isn't that much left to optimize anymore. Now they are about extra features.
Good evening,
first of all excuse my bad english but i use google translator and if I dwell on it.
I've been looking for some ROMs and kernels for my s6 sm-g920f (with original android nougat 7.0, TWRP e Magisk) for a few days that improve battery life. I'm going crazy, there are so many, so I would like to ask you, that maybe you know them well or at least much better than me, if you know how to show me the best you know to improve the battery but without reducing the power too clearly. (In the features of the ROMs I understand something, in the kernels I don't understand anything). I know very well that it depends a lot on the use we make of the phone and the best thing is to test them, but in general there are ROMs and kernels optimized better than others for this, can you tell me more or less what they are?
Turning on the internet and here in the forum I found these:
on the internet I found this info:
_miui: I read that the battery improves a little;
_slimroms: it is light but I don't know if it improves the battery enough;
_nexus os rom: I read that it improves the battery a little;
_lineageOS: I don't know how much the battery can help;
_bliss rom and omnirom: I don't know if there are for s6 and how much they can help the battery.
While here on the forum there are many and it is not easy to find them without knowing any:
_ViperOS: they say it is very good for the battery;
_TeamExyKings Light ROM: I understand it is made specifically to improve the battery;
_So called oreo: they say it is very good but the camera does not work (I don't know if there is any way to fix it);
_The Ultimate Nougat S8 + Port v3.1: good battery life with the addition of Ultimate Kernel;
_Frankenstein ROM + Aldeon Kernel: here too good battery life.
I would like to ask you for a hand, on those listed, which ones to consider for this purpose by discarding the others, if you know better ones and last but least important which kernel I could match.
Thank you so much for the patience and kindness of those who will help me.
According to some news, the so called "Game Optimizing Service" is availeable on S22 Ultra devices - which potenially controlls about 10.000 Apps of the App-Store.
Can someone confirm if it is installed / active on S22 Ultra on SD & Exynos ?
[Update: Samsung reponds] Galaxy phones appear to be throttling 10,000 Android apps, like OnePlus did
According to recent findings, Samsung is throttling thousands of common Android apps on its Galaxy devices, and without a clear reason.
9to5google.com
https://twitter.com/i/web/status/1499009797035008002
Package Disabler Pro
krogoth said:
Package Disabler Pro
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Pay for the money greedy developer.
Here's a link to my thread, i debloat Samsung firmware including GOS (Game Optimizing Service) for the best performance and battery.
[DISCONTINUED] Samsung Galaxy One UI - Optimization Guide
THIS IS A SUGGESTED CONFIGURATION FOR SAMSUNG DEVICES OUT OF SUPPORT/CLOSED I - RECOMMENDED SETTINGS To Start With - Factory Reset before starting optimisations - Factory Reset after every Major update (One UI/Android) - Remove SIM before first...
forum.xda-developers.com
I remember that Samsung used something like this in my Note 5 and S7 Edge from Android 6 to limit game performance on purpose.
I advise you all to disable this "optimization".
Reports say that the GOS cannot be disabled the old way b'cos it's now system app since One UI 4.0?
Will it help to uninstall insted of disabling?
You can't disable it in OneUI 4.x
It's part of the Kernel now.
Maybe instead of panicking and basing decisions on headlines and mob mentality you think about the reasons why this might have been done to start with?
Most of if not all of these apps will be very poorly optimised in general but especially for the hardware in the S22 series of devices - this means that left unchecked they will use more resources than they really need to, warming up the devices causing thermal throttling to kick in and draining the battery fast (as well as possibly reducing the lifespan of certain components).
This APK keeps these things in check, but for games where you really need more performance you can use gamebooster to switch to performance mode and recovery virtually all the lost power (if not all of it) - making it your choice to sacrifice heat and battery life for performance when you need it, not all the time.
Yeah, I uninstalled it via ADB but it returns after reboot.
Yeah only thing working from the sounds of it is being rooted and using a package disabler but yeah then you lose widevine currently.
I've disabled all it's permissions including "Change system setting", maybe that helps.
Also here it's mentioned that it's possible to disable the GOS for non-game apps, still waiting for answer to how though:
https://www.reddit.com/r/samsung/comments/t56kta
Lennyuk said:
Maybe instead of panicking and basing decisions on headlines and mob mentality you think about the reasons why this might have been done to start with?
Most of if not all of these apps will be very poorly optimised in general but especially for the hardware in the S22 series of devices - this means that left unchecked they will use more resources than they really need to, warming up the devices causing thermal throttling to kick in and draining the battery fast (as well as possibly reducing the lifespan of certain components).
This APK keeps these things in check, but for games where you really need more performance you can use gamebooster to switch to performance mode and recovery virtually all the lost power (if not all of it) - making it your choice to sacrifice heat and battery life for performance when you need it, not all the time.
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It is more or less the same discussion as we had with the oneplus 9 pro.
I am not seeing bad intend - but i dont't support the overall approach.
Most of theses apps are poorly optimized .... Even if so: That's none of the OS to take care of - especially not if you can't change / edit the overall parameters as a user on a "per App" Solution. I would love to see MS introduce something like this into windows....
Also the oem now actively could impact the performance of an App and the developer ist reliable anymore: "Well Samsung decided our app has to run like this, thanks for buying the pro version, but we can't help you". Wonderfull. And if Samsung has a bad day - maybe we are dropping the performance of some famous apps even more.... cause samsung would love to push the own alternative. Which includes some new advertising service... One could get creative with this stuff.
The reduction of lifespan is also a argument which is... at least questionable. I would argue that this is then poor product design or use of wrong or not fitting-quality components for the job. Makeing up "flaws" in Hardware by Software isn't really a solution to the overall problem
OK, so apparently this GOS thing is what the "Processing speed" option controls. It enables all apps to run at native speeds. I thought it just raised the clock speeds or something. Hmm..
@omnimax
not really. The thing is that the term - "Game Optimizing Service" is a bit missleading.
It is not about allowing named applications to run "native" or "unristricted". Named applications run with predefined ressourcess which aren't by any means "native". It's not about "raising" clockspeeds. It is about restriction of availeable ressourcces.
Lennyuk said:
Maybe instead of panicking and basing decisions on headlines and mob mentality you think about the reasons why this might have been done to start with?
Most of if not all of these apps will be very poorly optimised in general but especially for the hardware in the S22 series of devices - this means that left unchecked they will use more resources than they really need to, warming up the devices causing thermal throttling to kick in and draining the battery fast (as well as possibly reducing the lifespan of certain components).
This APK keeps these things in check, but for games where you really need more performance you can use gamebooster to switch to performance mode and recovery virtually all the lost power (if not all of it) - making it your choice to sacrifice heat and battery life for performance when you need it, not all the time.
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Nah, this is the same situation as OP did with OP9 series, except US SD user's cant even root and remove it completely so you're stuck at their mercy. If it was configurable, not enabled by default, only affected games and didn't phone home all the time, they might get a pass.... but the way it's implemented is pretty much the definition of malware.
Can't even opt-out
Always runs, with permissions or not.
Phones home with potentially identifying information. (EU people, check out how GDPR is handled here, it's probably not)
Makes your device slow.
The road to hell is paved on good intentions and what not...
I am really amused to see so much discussion on this here on XDA and social media as well. For 98% of the folks, as long as your phone runs smooth and gives you an all day battery life, enjoy it. Many app developers are also not saints. They may leak data and bloat code etc so OEMs need to take the matter in their hands. For avid gamers, they should probably get a gaming machine and use phones only for casual gaming. With current tech limits, gaming on phones will necessitate some tweaks to optimize performance. Apple is polished because it simply stops everything else in the background and focuses ONLY on 1 task on the foreground. And iPhones also do heat up after sometime while gaming.
linom said:
I am really amused to see so much discussion on this here on XDA and social media as well. For 98% of the folks, as long as your phone runs smooth and gives you an all day battery life, enjoy it. Many app developers are also not saints. They may leak data and bloat code etc so OEMs need to take the matter in their hands. For avid gamers, they should probably get a gaming machine and use phones only for casual gaming. With current tech limits, gaming on phones will necessitate some tweaks to optimize performance. Apple is polished because it simply stops everything else in the background and focuses ONLY on 1 task on the foreground. And iPhones also do heat up after sometime while gaming.
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It's really not the OEM's place to "take matter into their own hands". Don't push your use case on everyone else. Samsung does not know my user case, just like Apple does not know my use case, just like YOU don't know my use case. People bought this (and other, like the OP9) phone partially due to benchmark scores that should translate into performance metrics for their use case. When that's not the case, then they should be mad they got a paperweight. Check out the GOS enabled geekscore, it's basically a GS10. Why should users be happy they got a smooth UI experience when the things they actually want to do on a phone is gimped?
Your sentiment on a gaming machine... are you serious? This phone costs more than an actual mid-upper tier gaming PC. Some people like to play games on their phones, and some games are mobile only.
Again, optimizing by itself is not necessarily a bad thing. They just need to make it an opt-in experience, explain what it does clearly, let the users choose which apps to "optimize", and start letting people use their hardware like their own.
craznazn said:
It's really not the OEM's place to "take matter into their own hands". Don't push your use case on everyone else. Samsung does not know my user case, just like Apple does not know my use case, just like YOU don't know my use case. People bought this (and other, like the OP9) phone partially due to benchmark scores that should translate into performance metrics for their use case. When that's not the case, then they should be mad they got a paperweight. Check out the GOS enabled geekscore, it's basically a GS10. Why should users be happy they got a smooth UI experience when the things they actually want to do on a phone is gimped?
Your sentiment on a gaming machine... are you serious? This phone costs more than an actual mid-upper tier gaming PC. Some people like to play games on their phones, and some games are mobile only.
Again, optimizing by itself is not necessarily a bad thing. They just need to make it an opt-in experience, explain what it does clearly, let the users choose which apps to "optimize", and start letting people use their hardware like their own.
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Yeah, maybe you're right. They need to be transparent on the optimization choices.
lokto7 said:
Reports say that the GOS cannot be disabled the old way b'cos it's now system app since One UI 4.0?
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Cannot disable, adb fails...