Question Any custom kernel available for SM-G998B ? - Samsung Galaxy S21 Ultra

Hello guys,
I have rooted my Exynos s21 ultra and was wondering if there is any available custom kernels for it. I looked at the different forums but didn't seem to find anything. Seems like the stock kernel drains the battery a bit too fast and wanted to try a different kernel.
Thanks

Nothing for now bud... They made something for the Snapdragon but nothing yet for the EXY. It seems the EXY is great and doesn't need an improved kernel haha

babyboy3265 said:
Nothing for now bud... They made something for the Snapdragon but nothing yet for the EXY. It seems the EXY is great and doesn't need an improved kernel haha
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An custom kernel is always an improvement mate. And yes the exynos could be faster

Related

[Q] mi3 tegra vs snapdragon

I have both the tegra and snapdragon version of mi3.I can keep only one. Which one should I keep. I don't care about 3G. The only thing I care about is which one is faster and better in terms of performance. Thanks.
Android_user11 said:
I have both the tegra and snapdragon version of mi3.I can keep only one. Which one should I keep. I don't care about 3G. The only thing I care about is which one is faster and better in terms of performance. Thanks.
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as far as i know the td version is only for china,
and snapdragon is for the rest of the countries,
regarding speed and performance,snapdragon is a beast its to fast,snappier and gives an awesome performance
and once the kernel sources are released you can expect a hell lot of stable custom roms and kernels for the snapdragon variant,
I know tegra is for China. I got them both from China. I installed international stable rom on both. They are same in all aspects other than processor.
You are saying that snapdragon version will be faster?(I thought the tegra would be faster)
Android_user11 said:
I know tegra is for China. I got them both from China. I installed international stable rom on both. They are same in all aspects other than processor.
You are saying that snapdragon version will be faster?(I thought the tegra would be faster)
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i feel snap is faster then tegra,but you have the devices you can compare the speeds better right ,
and i guess you are running miui roms,
well i was saying about other roms like aosp aisp carbon cm11 they are hell lot faster then the miui rom,so if you go for the snapdragon one,you can have all these roms ,
http://cpuboss.com/cpus/Qualcomm-Snapdragon-800-vs-Nvidia-Tegra-4
this might help you out in your decision
ZenR2 said:
i feel snap is faster then tegra,but you have the devices you can compare the speeds better right ,
and i guess you are running miui roms,
well i was saying about other roms like aosp aisp carbon cm11 they are hell lot faster then the miui rom,so if you go for the snapdragon one,you can have all these roms ,
Click to expand...
Click to collapse
You're right. More roms and kernels will be available for snapdragon version and since I will root my phone, snapdragon would probably be better. Can you please provide a benchmark so that I can convince myself that they are almost equal in terms of performance?
Android_user11 said:
You're right. More roms and kernels will be available for snapdragon version and since I will root my phone, snapdragon would probably be better. Can you please provide a benchmark so that I can convince myself that they are almost equal in terms of performance?
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i cant tell you about tegras benchmark,but snap gave me antu benchmark of 37-40,000 score sometimes even more say 42
Anyone here has tried benchmarking tegra 4 phones?
Android_user11 said:
Anyone here has tried benchmarking tegra 4 phones?
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Click to collapse
you have the phone, right?
Just keep the snapdragon version, all around better and there's lots of development for the snapdragon version, plus one day you might need 3g, you'll be stuck on edge with the tegra.
Sent from my MI 3W
Thanks everyone. The reason I wasn't trying to benchmark the phones was that I wasn't at home (no WiFi) and since tegra version doesn't have 3g I couldn't download antutu. Yesterday I ran antutu on them both. Snapdragon got 41000(40991 to be precise) and tegra got 36000.I am keeping snapdragon version.
Thanks again.Btw sometimes the back bottom and home buttons light don't work properly (turn off after some time). Is this hardware issue or what. I don't really have any problem. I just turn them all of from settings. just wanted to know if anyone knows how to fix this. the menu bottom lights work fine .

[Q] [ AnTuTu Benchmarks on Note 4! 50,000+ ??? ]

Post up your AnTuTu Benchmarks! (Snapdragon 805's ... well Exynos too I guess haha. Darn you with the 55k+'s!!!)
(In this format please to keep it organized. It's ideal to just copy/paste it and fill in your numbers.)
==================Copy==================
ROM Info:
FireKatN4 Deodex V2 w/ Stock Kernel
AnTuTu Score:
49,694
=================Paste=================
Let it fly!
here is mine..!!
Okarina26 said:
here is mine..!!
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hi can you tell me what did you change to get that high score. i m at 46 k and dont know how to get it better. thnks
capecubano said:
hi can you tell me what did you change to get that high score. i m at 46 k and dont know how to get it better. thnks
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Exynos
Okarina26 said:
Exynos
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got you. that sucks we are stuck on snapdragon.
Haha! Great answer.... I should have said, SD805'S only hahaha....
Okarina26 said:
Exynos
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Snapdragon 805's dream with a stock kernel. Even with a custom kernel, Exynos will always stomp.
What carrier are you running your international variant on?
Great score by the way! Best I've seen. Well of course, exynos lol.
Okarina26 said:
here is mine..!!
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Click to collapse
49,863 on STOCK KERNEL running FireKatv2 ROM!!!
Almost 50K on STOCK Kernel!!!!
Anyone break 49K on stock kernel? State your ROM you're using too...
This is all for fun, but has anyone hit 49K on the stock kernel?
I've tested all the available ROM's on the other N4 in my household and none has has hit 49K except, FireKatv2.
Show me! :good::good:
100% Stock rom and Stock kernel no root
I dont get it. I have been on a quest to make my phone better since the note 2. I always hit XDA and tinker and learn as much as I can but sometimes I see scores and I see people really excited about the "speed increase and battery life improvements with new roms etc, and I dont get it because for example this is my score without any work on the phone at all. My battery life is about 7.5 hours screen time with gps on and sync on all the time. Screen set to auto. Dont get me wrong I am a lover of modding and hate all the bs that carriers and sammy puts on the phones I am here because I love to work on my phone but I see no real difference right now even maybe I slow the phone down if I do anything to it. Whats going on? I remember on my note 3 I was able to see some improvement on my benchmarks over stock (not by much) and a little better battery life but again not a huge difference. Also I thought I should mention that on echoe rom I was able to score 24 to 25,000 on quadrant clocked at 2.2 ALL THE TIME I once even scored 27,000 when I was overclocked at 2.5. How come I never break 26,000 even tho I am clocked at 2.7 now. Also why am I scoring so high over modded phones
That's an excellent score! Well in your case it just proves that the stock software isn't terrible. It works....Simple as that. As for the modded peeps with custom ROM's, a lot of them have so much crap on there apps wise and have it heavily tweaked with wanam/xposed where it is really weighing down their phones.
I also have a theory about the CPU's in that they are not all created equal. Remember with the Note 3's there was a prompt in the dialer where you could go to a secret menu to see what type of processor you had. I think it was from 0-7 or something and the closer the number was to 7 meant you had a more efficient CPU, but not friendly / "as tolerant" to overclock as oppose to someone with a number closer to "0" which meant that it was more power hungry and more tolerant to over clocking. If you search for it you'll find what I'm talking about. ...
Anyway, I think we have the same thing going on here....where some of us just happen to have stronger CPU's. It's just like car engines.....not all are the same as every one of them have their own unique character. I remember when I got my AMG C Class and my buddy had the same one but a year newer. He used to smoke me (stock) where I had intake/exhaust/flashed chip. I just didn't get it. Sometimes you just end up with a [email protected]$$ CPU coming from a good batch LOL.
Another example is microSD cards...you can buy the same brand / type and all, but will always have different results. My Samsung 64GB PRO is faster than my other Samsung 64GB Pro that I have in another N4. Same phone, same chip...different speeds.
You have an awesome piece. Great score! I can't wait to break 50K's on a stock kernel!
triman13 said:
I dont get it. I have been on a quest to make my phone better since the note 2. I always hit XDA and tinker and learn as much as I can but sometimes I see scores and I see people really excited about the "speed increase and battery life improvements with new roms etc, and I dont get it because for example this is my score without any work on the phone at all. My battery life is about 7.5 hours screen time with gps on and sync on all the time. Screen set to auto. Dont get me wrong I am a lover of modding and hate all the bs that carriers and sammy puts on the phones I am here because I love to work on my phone but I see no real difference right now even maybe I slow the phone down if I do anything to it. Whats going on? I remember on my note 3 I was able to see some improvement on my benchmarks over stock (not by much) and a little better battery life but again not a huge difference. Also I thought I should mention that on echoe rom I was able to score 24 to 25,000 on quadrant clocked at 2.2 ALL THE TIME I once even scored 27,000 when I was overclocked at 2.5. How come I never break 26,000 even tho I am clocked at 2.7 now. Also why am I scoring so high over modded phones
Click to expand...
Click to collapse
50,429! FireKatv2 (Stock Kernel) No CPU app. Bone stock.
Finally did it! Woke up, ran it....bam! As stated above this is with FireKatv2, Stock Kernel, Bone Stock and No App. I cleaned up a lot of my apps and my set up is real clean and simple. This is crazy....maybe I'm dreaming right now as I just woke up. No wait, I am awake. :victory:
For fun...enjoy.
Mine is 58483
Im using Galaxy Note 4 T mobile running on marshmallow, I am using beastmode kernal

[Q] Do any TouchWiz ROMs (i.e. FireKat) really speed up the phone?

I have a new T-Mobile Note 4 (that I'm using on AT&T) and the phone is quite fast, but I enjoy tweaking and am planning to root the phone for Xposed and a few other things, so I was also thinking about flashing a new ROM.
I also use GearVR so I need a compatible (TouchWiz?) ROM and was thinking about FireKat.
Does it really make that big of a difference?
I'm more concerned about performance than battery life, but of course battery life is important too.
Yes, it makes a huge difference.
To go into a bit more detail for ya, yes they do help. Most of the custom roms have been de-bloated and tweaked for "power users" for lack of a better term. They have been adjusted to allow better usability and eliminate some of the useless features. Some devs (not all, be sure to do your research and read the boards) but extra effort into making their roms perform better and allow customization. Be warned though, from my experience, with more customizations and tweaks to appearance you will take a hit to performance.
Thanks very much for the help.
It seems like a lot of ROMs are tweaked for battery life and I often wonder if the performance isn't that good as a result.
sofakng said:
Thanks very much for the help.
It seems like a lot of ROMs are tweaked for battery life and I often wonder if the performance isn't that good as a result.
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Click to collapse
FireKat is tweaked for both performance and battery life. My phone is 10 times faster than stock with FireKat V9 and the good battery life is a nice side effect. Make sure your follow the instructions in the first and second posts for maximum performance/battery life.
Maybe everyone can submit performance benchmarks here.
how about this, I used Nova Launcher when im not rooted but when I am rooted (like now running firekat) im on TW all the way.
Don't go by benchmarks, go by feel. Like someone said above read through the different Dev posts and in most, people have done what your talking about and posted numbers. To the original poster, FireKat is awesome. Mega does an incredible job and its definitely worth trying his efforts if you don't mind flashing. The speed difference as well as battery performance is nothing short of incredible on this device. I've tried many different ROMs and always come back to this one.
Of course your experience may vary, but that's what's so awesome is the ability to try a different ROM. Like you, I have a TMobile Note 4 on AT&T. Fortunately for us there are many talented devs for this phone which gives us many options. Give them a try and see for yourself, and trust me, you won't be disappointed.
Just do yourself a favor and don't go by benchmark numbers, and go by what you feel is the fastest and smoothest. Numbers are artificial and change so often that it's much better in my opinion to feel for yourself.
Good luck and enjoy the device man, it's awesome.
I am a power user. I have a gear vr. None of the custom ROMs support vr. I have a backup nandroid of stock ROM, whenever I want to use vr, I nandrood back to it. Daily driver is cm12.
This is my benchmark score anyway.
http://imgur.com/aMxJEac
Touch above 50k using the latest cm12 build.
This is the smoothest running ROM I've used.
Most stable is firekat for sure.
Ugh. Gear VR doesn't work on FireKat?
I've been reading the thread and it says that it would work with a custom kernel. Has anybody tried that?
yes, it's my favorite ROM so far.
lamuertex said:
This is my benchmark score anyway.
http://imgur.com/aMxJEac
Touch above 50k using the latest cm12 build.
This is the smoothest running ROM I've used.
Most stable is firekat for sure.
Click to expand...
Click to collapse
I checked ur screen shot, how are you getting lte? is there a fix on cm12?
michwolverines00 said:
I checked ur screen shot, how are you getting lte? is there a fix on cm12?
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Click to collapse
I haven't had connectivity issues like some may be experiencing.
sofakng said:
I have a new T-Mobile Note 4 (that I'm using on AT&T) and the phone is quite fast, but I enjoy tweaking and am planning to root the phone for Xposed and a few other things, so I was also thinking about flashing a new ROM.
I also use GearVR so I need a compatible (TouchWiz?) ROM and was thinking about FireKat.
Does it really make that big of a difference?
I'm more concerned about performance than battery life, but of course battery life is important too.
Click to expand...
Click to collapse
If you want to speed up the appearance of your phone...make it snappier....go into Developer settings and reduce all animations to 0.5 or turn them off completely. It makes a big difference.
Firekat + AEL kernal = ROM bliss with VR function.
Face_Plant said:
FireKat is tweaked for both performance and battery life. My phone is 10 times faster than stock with FireKat V9 and the good battery life is a nice side effect. Make sure your follow the instructions in the first and second posts for maximum performance/battery life.
Click to expand...
Click to collapse
Really ten times? Not even close to twice as fast, maybe half as fast. While Firekat and Dynamic Rom are faster than stock touchwiz......Slim roms or Cyanogenmod are the only thing that REALLY speed up the phone. Touchwiz will always be touchwiz
It's more of a speed upgrade than that. Mega has been tweaking the speed for 9 versions. He's got skills.
Do any of the ROMs speed up gaming at all?
For example, I also have an iPhone 6 Plus and several games are silky smooth on it (Galaxy On Fire 2 HD, Terraria, Shadowgun), but on the Note 4 the performance is much lower. It's not horrible, but it's nowhere near as smooth as iOS. (note: this isn't meant to disrespect Android or the Note 4, but I'm honestly wondering about the difference because I have both phones and compare them side-by-side)
I think what you may really be looking for is a custom kernel. A lot of them are in original android development. I can link you to others.
I'm testing hyperdrive rom today on this phone, however and just downloaded those games. Very zippy.
http://forum.xda-developers.com/showthread.php?t=2919441
We'll pretend you didn't just admit you have an iPhone.

Better ROM or kernel configuration for games?

Hi, I have a one plus 3t and I would like if someone knows a configuration to play, if it exists or something.
Thank you
As long as the Kernel does not underclock your CPU/GPU for Battery Life, any Kernel/ROM should be fine.
thes3usa said:
As long as the Kernel does not underclock your CPU/GPU for Battery Life, any Kernel/ROM should be fine.
Click to expand...
Click to collapse
That's what I would think. The hardware on this phone is killer. Only bettered by Snapdragon 835 phones (or the upcoming phones for this year).
I wonder if the top poster is having a specific issue with games? Or just looking to tweak/overclock, despite no real issues?
redpoint73 said:
That's what I would think. The hardware on this phone is killer. Only bettered by Snapdragon 835 phones (or the upcoming phones for this year).
I wonder if the top poster is having a specific issue with games? Or just looking to tweak/overclock, despite no real issues?
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Click to collapse
I'm guessing the latter. He's probably on Stock, and he just wants to know if there's any possibility on increasing Performance in Workloads/Games. Nothing much else.
If he does want some recommendations, Caesium Kernel or ElementalX paired with Stock or a highly AOSP based ROM like NOS should do well. Not that the other Kernels or ROMs will be much different, this is just my experience.
thes3usa said:
I'm guessing the latter. He's probably on Stock, and he just wants to know if there's any possibility on increasing Performance in Workloads/Games. Nothing much else.
If he does want some recommendations, Caesium Kernel or ElementalX paired with Stock or a highly AOSP based ROM like NOS should do well. Not that the other Kernels or ROMs will be much different, this is just my experience.
Click to expand...
Click to collapse
right now I am using the z-unleasht, it runs well the games but it was out of curiosity if there was some configuration of Kernel so that it does not drink so much battery and render better
You should try helix engine: https://forum.xda-developers.com/oneplus-5/themes/app-helix-engine-v1-0-beta-3-t3745746/
Then use "AKT balanced" (change in settings). You can choose for every App other profiles -> change it to performance for your games.
Then you have a fast smartphone with great battery life, and performance while gaming.
You need to be rooted
isaac.mesacorpas said:
right now I am using the z-unleasht, it runs well the games but it was out of curiosity if there was some configuration of Kernel so that it does not drink so much battery and render better
Click to expand...
Click to collapse
It's not possible to go after battery economy while wanting to perform heavy duty tasks.
It's either one or the other.
Unleashed by my rooted OP3T on 8.0
thanks for the app i am researching to have ..
Hi guys, i have tried many custom kernel such as ElementalX, Flash kernel, Boeffla, Blu_spark, Wolfram..... etc and I still find that my OnePlus 3T can't handle big games..... unstable FPS even at low settings.... and It heats up pretty quick and render the CPU to lower its frequency, etc.....

Benchmark score with custom roms

Hi guys, if you guys are using custom roms please post your benchmark scores. Because asus6z scores higher than our model, i need to move to custom rom and the fastest one...
It's also help peoples who all are searching for performance roms.
Why not try maxing out your cpu and change the governor to performance?
Turbine1991 said:
Why not try maxing out your cpu and change the governor to performance?
Click to expand...
Click to collapse
That will cost battery life too, compared to miui , there are lot of stock type roms provide better performance with battery life.
Custom rom evox 3.3 build 30th November
My Phone is 8gb/256gb Chinese varient with stock miui 11.0.4
leon s.kennady said:
Hi guys, if you guys are using custom roms please post your benchmark scores. Because asus6z scores higher than our model, i need to move to custom rom and the fastest one...
It's also help peoples who all are searching for performance roms.
Click to expand...
Click to collapse
If I recall correctly, many reports say that MIUI-based roms significantly faster, even if lacking in some other aspects.
xiaomi.eu ROMs have a number of optimizations that should make it faster than others, though I'm not sure if only marginally or significantly.
AvgZing said:
If I recall correctly, many reports say that MIUI-based roms significantly faster, even if lacking in some other aspects.
xiaomi.eu ROMs have a number of optimizations that should make it faster than others, though I'm not sure if only marginally or significantly.
Click to expand...
Click to collapse
Stock Roms always have better Benchmark results.
Abir the boss said:
My Phone is 8gb/256gb Chinese varient with stock miui 11.0.4
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Click to collapse
Im using indian version with 11.0.1 i got 41**** ......
My point is, if you want to compare underlying efficiency, apples with apples, at least clock them at the same frequency.
I've tried 3 of the roms, benchmarks aside, they can be really sluggish at times and offer dismal battery life. I just don't think custom kernels/roms have really matured enough to focus on performance on our device.
MiUI 11+ latest v3 of Quax kernel v

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