Undervoltage kernel for oneplus 3t? - OnePlus 3T Questions & Answers

Looking for a kernel with undervoltage capabilities.
And maybe control the charging current rate (charge fast via usb and limit the charging to a specific current).
Please don't explain why i don't need the undervoltage, i think i need it...
Thanks.

That's probably gonna make your 821 pretty unstable as this SoC doesn't seem to like undervolting from what I've heard. Or at least that's why neither Boeffla or Fusion supports it, only cause problems.

On my opo (snapdragon 801 i get - 75mv undervoltage that works great!
What about charging current limiter?

chenrp said:
On my opo (snapdragon 801 i get - 75mv undervoltage that works great!
What about charging current limiter?
Click to expand...
Click to collapse
I have an opo and op3t too but as 821 is very different from 801 as there are 2 types if clusters , so just research before doing anything.
As for your question elementalx may support undervolting also give akt profiles a shot

Cool.
What about current limiter?

Related

Undervolting vs Underclocking vs Hotplugging for battery life

Can anyone explain to me what is better?
I know that underclocking reduces cpu frequency, which means lower temperatures and also better battery, but performance is worse, so it takes longer to complete tasks...but if it takes longer to complete tasks, it means it will also have screen on for a longer time right?so it saves power from the cpu, but keeping the screen on for that extra time also means it will consume extra power right?
About undervolting, is it better to undervolt or to underclock when it comes to battery life?i know that with undervolting there is less heat produced because of the reduced voltages. From what i have read (i dont know if it is correct) the power consumption is given by this equation: P = f*c*(V^2) where f is frequency, c is capacitance and v is voltage. It makes sense that reducing voltage means less heat, but if i reduce CPU frequency it also produces less heat because it reduces power. Most of the time i read that underclock is better for battery because it uses less power, but like i said earlier, it takes longer to complete tasks and in result i have to keep the screen on for a longer time.
About hotplugging, i have seen some users with good battery life screenshots, and mentioning that they disabled hotplugging, because they said that turning cores on and off also wastes energy. So is it better to hotplug or not?
would really like to get some answers because i know nothing about this..I also know that i could test each setting and and see which is better, but i dont use my phone the same way everyday so its kind of hard to determine...
Short version and after extending testing (2 cores max, -175Uv, underclocking at 1000 or 1300mHz) with different kernels and always on stock Rom,
the result was that there was no noticeable difference at the battery life with a normal setup of using of 4 cores at normal max freq of 1512mhz.
A custom kernel in comparison to the stock kernel makes more sense cause of the optimization they offer for performance and battery life.
Unleashed from Onda v957m on TDT
RASTAVIPER said:
Short version and after extending testing (2 cores max, -175Uv, underclocking at 1000 or 1300mHz) with different kernels and always on stock Rom,
the result was that there was no noticeable difference at the battery life with a normal setup of using of 4 cores at normal max freq of 1512mhz.
A custom kernel in comparison to the stock kernel makes more sense cause of the optimization they offer for performance and battery life.
Unleashed from Onda v957m on TDT
Click to expand...
Click to collapse
nice to have some feedback from someone that tested=p. what about hotplugging? Today i disabled hotplugging and had always 4 cores on and it does not seem to be wasting more battery than with hotplugging enabled
These studies were done by bedalus on the Nexus S, but alot pertains today. Alot of useful information here
http://forum.xda-developers.com/nexus-s/general/ref-battery-drain-benchmarks-t1478406
Sent from my Nexus 4
n2d551 said:
These studies were done by bedalus on the Nexus S, but alot pertains today. Alot of useful information here
http://forum.xda-developers.com/nexus-s/general/ref-battery-drain-benchmarks-t1478406
Sent from my Nexus 4
Click to expand...
Click to collapse
Also lot of discussion about Uv here
http://forum.xda-developers.com/showthread.php?t=2137034
Unleashed from Onda v957m on TDT
n2d551 said:
These studies were done by bedalus on the Nexus S, but alot pertains today. Alot of useful information here
http://forum.xda-developers.com/nexus-s/general/ref-battery-drain-benchmarks-t1478406
Sent from my Nexus 4
Click to expand...
Click to collapse
totally forgot about bedalus experiments!i had a Nexus S at the time and saw that post, but back then i didnt mess around with anything on my phone so i completely forgot=p.thanks!
The only thing he doesnt adress is hotplugging(the Nexus S was single core so he couldnt even if wanted=p). Anyone care to shed some light on hotplugging?is it really worth it or there are minimal gains?
migueldbr said:
totally forgot about bedalus experiments!i had a Nexus S at the time and saw that post, but back then i didnt mess around with anything on my phone so i completely forgot=p.thanks!
The only thing he doesnt adress is hotplugging(the Nexus S was single core so he couldnt even if wanted=p). Anyone care to shed some light on hotplugging?is it really worth it or there are minimal gains?
Click to expand...
Click to collapse
There are different hotplugging methods.
The stock one as a boost feature, as soon as u touch the screen ur decvice goes to dual core 1026mhz for a couple seconds even if the load is super low.
Custom kernels have many variants on the hotplugging "style". Most of them dont have the touch boost included to save battery (but u can have the same kind of touch boost enabled by the governor, ex: franco kernel). Others simply advise u to turn off hotplugging == less calculation of the load to decide if the device needs to plug it or not + no waiting time to get the performance boost of many cores online (since all 4 are already online) + somewhat more heat since all cores are allways draining battery.
Im no expert and i hope all i said is right, at leats its what i know.
What i personally look for is:
Min core 1
Max cores 4
No touch boost (no heat while u are simply texting via sms on 2G with data and wifi OFF)
sent from my diabetic Nexus 4 (too many KitKats).
C4SCA said:
There are different hotplugging methods.
The stock one as a boost feature, as soon as u touch the screen ur decvice goes to dual core 1026mhz for a couple seconds even if the load is super low.
Custom kernels have many variants on the hotplugging "style". Most of them dont have the touch boost included to save battery (but u can have the same kind of touch boost enabled by the governor, ex: franco kernel). Others simply advise u to turn off hotplugging == less calculation of the load to decide if the device needs to plug it or not + no waiting time to get the performance boost of many cores online (since all 4 are already online) + somewhat more heat since all cores are allways draining battery.
Im no expert and i hope all i said is right, at leats its what i know.
What i personally look for is:
Min core 1
Max cores 4
No touch boost (no heat while u are simply texting via sms on 2G with data and wifi OFF)
sent from my diabetic Nexus 4 (too many KitKats).
Click to expand...
Click to collapse
actually touch boost and hotplugging are different things...touch boost is a feature where as soon as you touch the screen, the cpu ramps up the frequency to the specified touch boost frequency. Hotplugging is a different thing, where cores of the cpu are turned on and off when the phone does not need them to be on all at the same time. I know that touch boost drains more battery, but i dont know about hotplugging...would like to see some tests/benchmarks, but i dont think there are any...
migueldbr said:
actually touch boost and hotplugging are different things...touch boost is a feature where as soon as you touch the screen, the cpu ramps up the frequency to the specified touch boost frequency. Hotplugging is a different thing, where cores of the cpu are turned on and off when the phone does not need them to be on all at the same time. I know that touch boost drains more battery, but i dont know about hotplugging...would like to see some tests/benchmarks, but i dont think there are any...
Click to expand...
Click to collapse
Different things but on stock kernel touch boost is implemented on the hotplug and not the governor.
Any difference btw 4 cores online or hotplugging must minor, and have draw backs on heat wich affects the battery capacity.
Eventhough u can say that hotplugging may drain an amount of battery to plug and unplug cores, i would say its minor.
Talk to @simms22 , he is the "trinity kernel guy", four cores online is a must for him
sent from my diabetic Nexus 4 (too many KitKats).
From my experience, under clocking as well as running a 2 core setup doesn't change anything for the better. Most times for the worst due to a worse user experience.
Undervolting is something that, solely from the physical side, cannot make things worse (unless you under clock too much). Undervolting will make your CPU cores use less current. Less current running through an electric circuit always means less heat, too.
To put it simple:
If my regular voltage at 384mhz is 950mv and I lower the voltage to 800mv and after testing it proves to run stable my device now uses 150mv less on that frequency.
Sent from my Nexus 4 using XDA Free mobile app
Oxious119 said:
From my experience, under clocking as well as running a 2 core setup doesn't change anything for the better. Most times for the worst due to a worse user experience.
Undervolting is something that, solely from the physical side, cannot make things worse (unless you under clock too much). Undervolting will make your CPU cores use less current. Less current running through an electric circuit always means less heat, too.
To put it simple:
If my regular voltage at 384mhz is 950mv and I lower the voltage to 800mv and after testing it proves to run stable my device now uses 150mv less on that frequency.
Sent from my Nexus 4 using XDA Free mobile app
Click to expand...
Click to collapse
no matter what you do , its still going to be a mediocre battery life , best leave it as it is because the way nexus 4 is designed its still going to be getting annoyingly warm on games
Well, from my own experience undervolting definetly reduced heat and made the battery last longer. Don't expect 2 hours more sot, though. Its most notably while the device is idle.
Sent from my Nexus 4 using XDA Free mobile app
nice man
very helpful...
Help pls..
Can any1 help me undervolting Unleashed kernel.. providing tips or the link ll be vry helpfull..

[Kernel]NN-J-Kernel-LP-T710/810-5.1.1-3/10/16

This is the BOJ1 version of NN-kernel. It's going to go in a little different direction than the previous kernel. And I'm not very good with Git. So may I present to you.....
NN-J-Kernel​
This will work on the T710 and 810 Wifi only models. I built this for my BNN Nook, but it works with other 710's and 810's.
You flash this at your own risk. There's the discaimer. :silly:​
Install instructions:
You MUST HAVE ROOT and TWRP installed to flash this!!
It's built on Lollipop 5.1.1 - I have no idea what will happen if you flash this on anything else!!
REMOVE SYNAPSE "set on boot" BEFORE INSTALLING!!!
Flash kernel then wipe cache and dalvic
Reboot and profit!!
Changelog
V1.3
GPU Control
UV now possible as well as select frequency
Samsung has the Max listed as 600Mhz. I'm pretty sure its 700 as thats what I've been using this at. Just an FYI
V1.2
Charge Control for battery - It's the best I can do for a "Faster Charge". Be careful. This can shorten the life of your battery. Or worse, ruin it if you change from default. You have been warned.
Maybe some other minor stuff
Also see/read this post
_______________
V1.1
Hotplug Big cores - They are the only ones that can be
OC/UC Big and Little - 2.1Ghz-500Mhz, 1.6Ghz-200Mhz
UV all CPU's
650Mhz step added to GPU
FIOPS Scheduler
Booting freq to 1.4Ghz
Lots of Optimizations
Gentle Fair Sleepers
Synapse stuff added
HMP controls - Big little cores
Memory controls
_______________
V1
OJ1 source
Synapse tuner - it's the only one that seems to work. Finally, after much effort.
Selinux Permissive
KNOX removed
Init.d support
Enabled OTG
Updated Frandom
Govs enabled- Powersave, Conservative, Ondemand - removed Userspace
Some optimizations
_____________________________
This is a Tablet, so I won't be adding things like I would for a phone.
Use "Synapse" from the Playstore for your Kernel tuner
______________________________
Downloads:
NNJ-Kernel-V1.3-710
NNJ-Kernel-V1.3-810
NNJ-Kernel-V1.2-710
NNJ-Kernel-V1.2-810
NNJ-Kernel-V1.1-710
NNJ-Kernel-V1.1-810
NNJ-Kernel-V1-710
NNJ-Kernel-V1-810
Thanks to:
ashyx
BigBot96
UpInTheAir
djmax81
And other peoples gits I can't remember
XDA:DevDB Information
NN-J-Kernel-LP-T710/810, Kernel for the Samsung Galaxy Tab S2
Contributors
engine95
Source Code: https://github.com/engine95/Exynos5433-BOJ1-gts28-210wifi.git
Kernel Special Features:
Version Information
Status: Stable
Stable Release Date: 2016-02-24
Created 2016-02-24
Last Updated 2016-02-24
And yes, Schedulers are fixed in this.
Flashed, running perfectly so far....
Thank you for your work.
Gesendet von meinem SM-T810 mit Tapatalk
I flashed this kernel (oj1-based) and the NN kernel (oh7-based) and let antutu benchmark the performance of both kernels (both default settings). This kernel wins outstanding!
Is this the "newer" one yes ?
Awesome! Thanks, it's nice to see some development on thus tablet. Otherwise there is nothing to flash
Sent from my LG-D855 using Tapatalk
halloarno said:
I flashed this kernel (oj1-based) and the NN kernel (oh7-based) and let antutu benchmark the performance of both kernels (both default settings). This kernel wins outstanding!
Click to expand...
Click to collapse
I did the same and the OJ Kernel is slower for me. Did 2 tests. 69-70k in old Kernel while i getting 62-65 with OJ1. Any idea ? How much do you get?
I tried setting max core to 2.x ghz but its not working, is it fixed to 1.9 ghz=no oc enabled so far?
Very strange, worked before i think. Just have Synapse installed and also wiped caches after flashing.
Any idea?
IngoPan said:
I tried setting max core to 2.x ghz but its not working, is it fixed to 1.9 ghz=no oc enabled so far?
Very strange, worked before i think. Just have Synapse installed and also wiped caches after flashing.
Any idea?
Click to expand...
Click to collapse
This kernel has no OC function, at least until now.
Actually, right now, it has no OC or extras. This is just the start. It's in the changelog.
Antutu scores, for me are 66-67000.
OC/UC and UV will be coming shortly. It's done. I just can't find out why Big 1500 ghz and Little 1300ghz are favored. Messed with a lot of stuff to no avail. Yet
V1.1 is up!!
SEE/READ changelog as there is a ton of stuff in it now. Both Kernel and Synapse. Yea for Hotplug!!!
Google "HMP" so you can understand it better. Big/Little core control. Little cores are ALWAYS online.
Think I found a way to get us a Fast Charge. Gotta finish and test it. So far it's looking good.
engine95 said:
Think I found a way to get us a Fast Charge. Gotta finish and test it. So far it's looking good.
Click to expand...
Click to collapse
Incredible. Fast charge on our tab s2? I hope so?
Great job! Thanks! Flashed and works perfectly, new synapse settings seems cool. UC seems to work fine.
Shiuldnwebuse the DVFS app as mentioned in synapse?
Sent from my SM-T810 using Tapatalk
whynottoday said:
Incredible. Fast charge on our tab s2? I hope so
Click to expand...
Click to collapse
Gugus38 said:
Great job! Thanks! Flashed and works perfectly, new synapse settings seems cool. UC seems to work fine.
Shiuldnwebuse the DVFS app as mentioned in synapse?
Sent from my SM-T810 using Tapatalk
Click to expand...
Click to collapse
Thanks. I have no idea if that app helps as I'm new to Samsung. If you try it, make a backup first.
Everything works fine without it though.
Can you say Fast Charge?!!!!!
I had to port Hotplug and Fast charge, but I think we're good to go. I still need to put finishing touches and build for both 710/810. But it should be out tomorrow IF my Tab doesn't meltdown while charging tonight. :silly:
Edit: Also, remember that as with everything computer, Fast Charge will be limited by Thermals. Just like CPU/GPU.
engine95 said:
Thanks. I have no idea if that app helps as I'm new to Samsung. If you try it, make a backup first.
Everything works fine without it though.
Can you say Fast Charge?!!!!!
I had to port Hotplug and Fast charge, but I think we're good to go. I still need to put finishing touches and build for both 710/810. But it should be out tomorrow IF my Tab doesn't meltdown while charging tonight. :silly:
Edit: Also, remember that as with everything computer, Fast Charge will be limited by Thermals. Just like CPU/GPU.
Click to expand...
Click to collapse
It wont really be fast charge as our tab doesn't support it
Reuben_skelz92 said:
It wont really be fast charge as our tab doesn't support it
Click to expand...
Click to collapse
Interesting. Guess we'll find out. I have been able to vary the voltages while charging. Up and down. But as I said, thermals will probably limit it.
Edit. Let's call it "Charge Control" then.
engine95 said:
Interesting. Guess we'll find out. I have been able to vary the voltages while charging. Up and down. But as I said, thermals will probably limit it.
Edit. Let's call it "Charge Control" then.
Click to expand...
Click to collapse
Sorry me being an idiot. Will be cool to see our tabs charge a little.bit quicker
Thank you very much for the kernel!
Running 1.1 with
A57 cores at 1300/500 and UV 50mV
A53 cores at 1000/200 and UV 25mV
2 A57 cores online
FIOPS scheduler, 2048 readahead
Gentle Fair Sleepers enabled
It's running snappy! Will watch battery life
P. S.: Why doesn't Synapse have live monitoring where one can see which frequency each core has at the moment? Just like other kernel tuners?
hasenbein196601 said:
Thank you very much for the kernel!
Running 1.1 with
A57 cores at 1300/500 and UV 50mV
A53 cores at 1000/200 and UV 25mV
2 A57 cores online
FIOPS scheduler, 2048 readahead
Gentle Fair Sleepers enabled
It's running snappy! Will watch battery life
P. S.: Why doesn't Synapse have live monitoring where one can see which frequency each core has at the moment? Just like other kernel tuners?
Click to expand...
Click to collapse
They are there. On the core screen at the top. Just wiggle the screen and you'll see it change. Big cores don't move as much until there is demand for them.
V1.2 is in the OP! With "Charge Control" See/read changelog for warnings.
This was a big port, and everything seems to be working. Just watch your tab for temps just to be sure it can handle the voltages. We should be ok, as it's built in and not on it's own. Meaning that all of Samsungs limits are still there. So Thermals should hold it from melting down. My Tab has been plugged in all night and is just fine.
This has all kinds of cable configurations, so it should cover about everything out there. I only use AC and USB but left all the others in for all of you.
One more time, we should be OK using Charge Control, but BE WARNED that it may ruin your battery and shorten battery life span. You use this at your own risk.

One plus 3 overclock to max possible power

Anyone is able to do a kernel ( possible based on cyanogenmod) with overclock support?
If is possible, add the maximum overclock on snapdragon 820...
This will get us more performance and higher benchmark
gersdvges said:
Anyone is able to do a kernel ( possible based on cyanogenmod) with overclock support?
If is possible, add the maximum overclock on snapdragon 820...
This will get us more performance and higher benchmark
Click to expand...
Click to collapse
But why is that needed?
Cobalt Cresent said:
But why is that needed?
Click to expand...
Click to collapse
U can overclock with elementalX.
Next time search before post
matze19999 said:
U can overclock with elementalX.
Next time search before post
Click to expand...
Click to collapse
I already knew that? I'm not the OP. I were simply just asking why a OC is needed. That's all
I mean @gersdvges
Because oc improve games and apps loading
matze19999 said:
u can overclock with elementalx.
Next time search before post
Click to expand...
Click to collapse
but elementar x only can overclock to 2.2 ghz
i know that snapdragon 820 can be oc over 2.2 ghz
>2016
>SoC's are as powerful as older PC's
>someone stiil needs OVER90000 GHZ OC COZ ANTUTU GOES FASTA
CraZY_BoY^ said:
>2016
>SoC's are as powerful as older PC's
>someone stiil needs OVER90000 GHZ OC COZ ANTUTU GOES FASTA
Click to expand...
Click to collapse
This +1000
This phone/CPU/GPU handles almost all content the Play Store can throw at it with ease. You may have slight FPS drops with the odd game, but you are not going to rewrite history gaining 4fps from a marginal over clock and even then you'd be better over clocking the GPU not the CPU anyway.
I agree with others. This obsession with Antutu scores is utterly pointless. And overclocks are a monumental waste of battery in the form of heat.
This obsession is almost as annoying as the folk that don't use any apps and wake their screen every now and then too increase screen on time, to then boast that they managed 12hours SOT.
Sent from my ONEPLUS A3003 using XDA-Developers mobile app
gersdvges said:
Because oc improve games and apps loading
Click to expand...
Click to collapse
That is false... The storage solution is what makes things Load quicker and what governor/io scheduler youre using. Over clocking is useless and trust me I know, I've over clocked every phone of mine until I realized all it does is cause instability, less battery life and more heating. The only viable over clocking is the GPU.
gersdvges said:
Anyone is able to do a kernel ( possible based on cyanogenmod) with overclock support?
If is possible, add the maximum overclock on snapdragon 820...
This will get us more performance and higher benchmark
Click to expand...
Click to collapse
Are you retarded? The phone's already super fast. But no, MUH MAXIMUM POWER FOR ANTUTU!
gersdvges said:
Anyone is able to do a kernel ( possible based on cyanogenmod) with overclock support?
If is possible, add the maximum overclock on snapdragon 820...
This will get us more performance and higher benchmark
Click to expand...
Click to collapse
I agree

CPU undervolting concept and results

This is an outdated device, but since SD801 is so efficient, I gave it a try.
Warning - undervolting is a risky process. It may constantly crash your device, make it unusable or you can actually lose all of your data. Be aware.
So, after reading various articles about CPU binning concept, I thoroughly examined my device's potential. Note, that every device is different, regarding CPU quality and etc.
Anyways, I am running stock rom with Boeffla kernel. I actually gave up, when my device was getting hot - I don't like that at all. Since thermal throttling is really aggresive, I wanted to get away from that completely. And I did.
Currently my phone is heavily undervolted (by 0.1V to be exact) and to be honest, CPU temperatures now never ever exceed 50ºC. With stock voltages, I could easily reach 80ºC.
Anybody else tried doing undervolting? Share your experiences. I would greatly appreciate that.
what is the benefit of it?
does it give a better battery life............?
binadam23 said:
what is the benefit of it?
does it give a better battery life............?
Click to expand...
Click to collapse
The only real benefit of undervolting is to reduce temps. Even so it isn't recommended because of the risk of instabilities.
Saber.
Saber said:
The only real benefit of undervolting is to reduce temps. Even so it isn't recommended because of the risk of instabilities.
Saber.
Click to expand...
Click to collapse
lower temperature = lower power consumption = better battery life.
Kriomag said:
lower temperature = lower power consumption = better battery life.
Click to expand...
Click to collapse
Not necessarily. In my experience in kernels, undervolting only brings marginal power savings. Most battery drain is from open apps and from the display.
Saber.
Wake locks play a big role too I always turn off as may features as I can on my s5 verizon and settings database editor App to turn off more features than normally possible
Sent from my iPhone using Tapatalk
Saber said:
Not necessarily. In my experience in kernels, undervolting only brings marginal power savings. Most battery drain is from open apps and from the display.
Saber.
Click to expand...
Click to collapse
Not exactly marginal from my experience. It also depends on which frequency CPU is running. At higher clocks, lower power consumption is more noticeable than on lower frequencies.
airidosas252 said:
Not exactly marginal from my experience. It also depends on which frequency CPU is running. At higher clocks, lower power consumption is more noticeable than on lower frequencies.
Click to expand...
Click to collapse
Well, that's not quite the same as what I was saying.
Different CPU frequencies use different current levels which will affect the power draw. So in this case, it will affect the battery savings. Whereas undervolting alone doesn't bring much of a difference due to the already efficient design of our SOC (well, at least in my case ).
Saber.
Undervolting -> Lower Temp -> Less Throttling -> Better Performance with slightly better battery life.
Sent from my SM-G900F using XDA Labs
Throttling is really noticeable with stock voltages. Play some games for a while and you'll start to feel that phone is getting slower and hotter. Not the case anymore after undervolting. If your phone can handle upto 0.1V undervolt, then your SOC is in good shape.
Wlld1 said:
Undervolting -> Lower Temp -> Less Throttling -> Better Performance with slightly better battery life.
Sent from my SM-G900F using XDA Labs
Click to expand...
Click to collapse
i can confirm this, i feel my phone is really snappy now and slightly worm, not hot anymore
I use 300-2000Mhz and heavy UV 620-850V. I also use "use_spi_crc=0".
After phone reboot on stock i get 80'C (cpu tem module in xposed) and on my settings it is not reaching 60'C
What about battery life? it needs long testing, i can assume that its slightly better because less energy is converted in to heat
There seems to be some misconception on undervolting.
In theory undervolting should translate to better battery life. However....
Real world results tell a different story as it shouldn't really make much difference at all. For example, not all S5 phones run the same voltage tables (different CPU quality require more/less voltage), yet they achieve the same battery life. So what voltage was set by the manufacturer (Samsung) is already the optimum voltage.
You will definitely achieve better thermals after undervolting, but in the custom kernel world, most kernel developers will not be able to provide help in the case of instabilities. Some kernel developers may not even provide undervolting support because there just isn't a great enough benefit other than improving thermals.
Saber.
What about undervolting Busses, Image processing System, MMC Memory, GPU and CPU?
I`ve got the exynos variant of the S5. I undervolted to -85 all of that stuff and the phone now doesn't heat at all and battery life isn't that amazing but it is noticeably better
Rudy1967 said:
What about undervolting Busses, Image processing System, MMC Memory, GPU and CPU?
I`ve got the exynos variant of the S5. I undervolted to -85 all of that stuff and the phone now doesn't heat at all and battery life isn't that amazing but it is noticeably better
Click to expand...
Click to collapse
I'm using the snapdragon variant with boeffla kernel so only the CPU is allowed to be undervolted.
Undervolting other components alongside the CPU will make a more noticeable difference in terms of battery savings. It still isn't recommended by many kernel devs as these other components are more sensitive to slight voltage changes (including the bus).
Saber.
Saber said:
I'm using the snapdragon variant with boeffla kernel so only the CPU is allowed to be undervolted.
Undervolting other components alongside the CPU will make a more noticeable difference in terms of battery savings. It still isn't recommended by many kernel devs as these other components are more sensitive to slight voltage changes (including the bus).
Saber.
Click to expand...
Click to collapse
Yeah it actually makes a slight difference in battery life, But I don't think anyone should go below these values since I started to get Screen of death and all that kinda stuff that happens when phones are very undervolted haha
If there's a kernel that allows users of Snapdragon phones to undervolt that hardware, I really recommend you to do it, it really helps battery's performance if you need that extra hour of Screen On time
Now, all of this changes are not recommended cause there could be problems with your phones if you're not sure bout the parameters you're playing with.
does anybody else have problem with gpu oc ? no matter what settings i use there is no performance increase at all, its like the 600Mhz is permanent even when all monitoring programs show 700-800Mhz :/ I have tested gpu many times using 3dmark - always the same fps (600-800Mhz). With 200Mhz increase in frequency it should be significant increase in fps!

overclocking not possible?

When i open cpu control apps like 3c cpu manager and rom toolbox pro, the maximum frequency is set to 1.59 Mhz by default and i can't increase it. When i increase it, it again comes to 1.59. Any solution?
Using oneplus 3t
Overclocking depends on the kernel. If you are using the stock ROM and stock kernel, don't even hope.
If you have a supported kernel (not likely), use Kernel Adiutor. Much more up to date.
Also there's core control which will interfere as to make sure your CPU doesn't melt into a beautiful pile of liquid metal ?
As far as I know you shouldn't overclock your CPU, there may be some design problems with it, and becomes unstable. Sultanxda investigated the problem back in December, and it looks like even the stock rom must use some tricks (aggressive thermal throttling?) to reach maximum spec. frequency. Overclocking on custom roms lead to crashes.
Radioactive kernel for los based roms by @acuicultor has overclock. I use it and love it. Great sot, 7-9 hours easy, less if I game. I actually have the large cores underclocked to 2. though so that may help a little with my sot but it shouldn't affect it much at all
noushadpottippara said:
When i open cpu control apps like 3c cpu manager and rom toolbox pro, the maximum frequency is set to 1.59 Mhz by default and i can't increase it. When i increase it, it again comes to 1.59. Any solution?
Using oneplus 3t
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That is normal although the max frequency of the little cluster is 2.15Ghz as advertised by Qualcomm for Snapdragon 821.
According XDA review of oneplus 3T dated November 2016 https://www.xda-developers.com/oneplus-3t-xda-review-what-has-changed-and-by-how-much/ the Little cluster was clocking to 1.6Ghz (round off) as opposed to 2.15Ghz which is its maximum clockrate, it is safe to say that oneplus intentionally did that in order to save more battery.
Btw im using custom kernel ElementalX kernel based on Oxygen OS 4.1.1 and even I set the little cluster to its maximum 2.15Ghz it always reverts to 1.6Ghz.
As you can see OnePlus 3T is still blazing fast even the little cluster is a bit downclocked.
https://youtu.be/otwED6s3rCQ
Oneplus 3T manage to beat LG G6 which is a 2017 device
https://youtu.be/8JoPC8UsE0w
exaflare said:
Btw im using custom kernel ElementalX kernel based on Oxygen OS 4.1.1 and even I set the little cluster to its maximum 2.15Ghz it always reverts to 1.6Ghz.
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Click to collapse
Radioactive kernel stays at 2.188Ghz for the little cluster for me even after reboot if I set it that way. I prefer 1.6Ghz, I like my insane sot. The big cluster oc at 2.419Ghz does not stay though, it automatically reverts back to 2.3Ghz. But I actually prefer to set it uc at 2.15Ghz. Still blazing fast.
EDIT: Using exkm aswell
OC more than possible

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