Develop Bugs

Best route for overclocking with CM10?

This is my first rooted device and I'd like to set the CPU frequency higher. I've read that 1600 is moderately safe and 1800 is feasible. After installing setcpu I've realized that CM10's kernel does not allow overclocking. What is the best action to take? Am I out of luck if I want to stick with CM10? Or is there another kernel I can use compatible with CM10? Thanks for reading.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app

Try kt kernel in original development, I've used it with great success. Has oc up to 1.89. Also allows you to under volt to save some battery. In conjunction with ktoonz kernel get voltage control from the market to adjust cpu clock and voltages.
Sent from my SGH-I747M using Tapatalk 2

I use Leankernel to go up to 1.9Ghz :good:

Rocket Nine said:
This is my first rooted device and I'd like to set the CPU frequency higher. I've read that 1600 is moderately safe and 1800 is feasible. After installing setcpu I've realized that CM10's kernel does not allow overclocking. What is the best action to take? Am I out of luck if I want to stick with CM10? Or is there another kernel I can use compatible with CM10? Thanks for reading.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
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Mine has been getting pretty damn hot just at stock clock speeds...you sure you want to do that? CM10 is so fast already!

fortesquieu said:
I use Leankernel to go up to 1.9Ghz :good:
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Thanks for the suggestion. I used Leankernel all day without a single issue that isn't specific to CM10 right now.
P.S. I also upgraded the modem to I747UCLH1 from this thread. To anyone interested, test your data speed on all three modems to find the best one to keep. My rates doubled with this new modem.

Kt new kernel up. 2.1ghz ktweeker app. Running Sammy version and it's blazin fast.
Sent from my SAMSUNG-SGH-I747 using xda premium

ovwerclock
Hey this might be a bit late on this thread, but Siyah has just released an updated, which works with cm10 and allows for overclocking up to 1600, and undervolting to save on that ole battery... currently for the galaxy s3

Obligatory reminder:
Not all phones are the same. Some tolerate overclock/undervolt better than others. What you WANT your phone to do may not actually be what it WILL do. Start slow, only change one step at a time. I would recommend finding the perfect oc point for your phone, then slowly, slowly working the undervolt into it.

Galaxy Nexus Kernel?

Hey guys,
recently rooted my phone (for the first time) and flashed CM10. I've been reading about Kernels and how they can improve battery life and performance and stuff.
I haven't really understood how a kernel would work. Can I just flash it like how I flashed a ROM? Would it 'delete' my earlier CM10 kernel?
Which kernels are compatible with CM10? Which is the best for battery life and snappiness of the processor?
I've heard of Lean,PopcornKernal, and of course, francos.
Thanks,
Sahil

All of them are good. There isn't a best kernel. You should really stay away from asking those questions. And if you don't tune the kernel there is no way to get any difference than from stock.
Sent From My Toro+ via RED Tapatalk

Im not sure if cm10 requires its own set of kernels but my phone liked the air kernel (ran cooler) and lean (as a bonus removed the purply tint at lower brightness)
--------------
God is an invention by people with nowhere else to turn

ÜBER™ said:
All of them are good. There isn't a best kernel. You should really stay away from asking those questions. And if you don't tune the kernel there is no way to get any difference than from stock.
Sent From My Toro+ via RED Tapatalk
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Please explain how you tube your kernel.
Sent from my Galaxy Nexus using Tapatalk 2

jakeneal22 said:
Please explain how you tube your kernel.
Sent from my Galaxy Nexus using Tapatalk 2
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depends on the kernel, on the device and on the user.
mpu/core/iva voltages, smartreflex and color control are a few examples.
Sent from my i9250

SahilC said:
I haven't really understood how a kernel would work. Can I just flash it like how I flashed a ROM? Would it 'delete' my earlier CM10 kernel?
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kernels are like the engine to a car/rom. They're pretty much what manages and drives everything, whereas the rom is like the entire OS.
Every ROM comes with a kernel by default but it can be replaced simply by flashing a kernel on top of it. Conversely, flashing a rom will replace whatever kernel you're running now with the rom's kernel.
jakeneal22 said:
Please explain how you tube your kernel.
Sent from my Galaxy Nexus using Tapatalk 2
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Many kernels come with their apps (which can be found in their threads), or some apps might have access to some properties. Also, some roms (cm comes to mind) have access to some properties of some kernels, though there was a recent fuss made about incompatibility so its not perfect.

Franco Kernel
Hey guys! I want to root my GN and I'm a bit confused about what Kernel use...
I have seen this: http://forum.xda-developers.com/showthread.php?t=1367341
Did anyone try the newest version of Franco Kernel (r292)? What's about stability, battery drains, lags... ?

I'd recommend trying Franco's kernel out, it is supported by a nice updater app that can auto-flash the kernel and keep you informed of updates. Doing a bit of research yourself is also always recommended here - this site is for learning about your device. Good luck!

James bond kernal claims to be best in battry life , bt acc. To me trinity alpha 67 with setcpu profiles provide best results.

PoorOldMoot said:
I'd recommend trying Franco's kernel out, it is supported by a nice updater app that can auto-flash the kernel and keep you informed of updates. Doing a bit of research yourself is also always recommended here - this site is for learning about your device. Good luck!
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OK thanks! I'll test it as soon as!

The Best trinity alpha 67 for 4.1.2. .
Sent from my Galaxy Nexus using xda premium

Cyanogenmod 7 and 10 overclocking questions

hi i'm looking to overclock my sprint epic 4g cpu up to 1.8ghz and also the gpu to 300mahz and 72hz refresh rate
on either cyanogenmod 7 or 10
what kernel and ROM and CPU/GPU overclocking apps should I use with voltage control and what (safe) voltages should I try for the cpu and gpu ARM and Internal voltages (what build number do I need for cm 7 or 10 (either stable or nightly)
also I noticed that the slide out keyboard shift and function keys don't work on cyanogenmod 10 stable build not sure about a nightly build
I'd like to fix the keyboard too
i'd like to be able to turn the boot logo on and off and possibly change it to a different one and also add a boot up sound to the logo
should I use the franko or samurai or maybe a different kernel ?
what modem should I use for max speed (EL30 FC09 FC19 or Nexus LF2 K2 ?) and compatible rom
I know how to install everything just need advice
If all of the above isn't possible at least I'd like to get the CPU to the highest possible speed past 1.2 ghz if possible most of all and not have random reboots or lockups or sleep of death and woking keyboard and least amount of bugs in the rom
Thank you so much in advance for any advice

Do your shift and Fn keys work if you hold them down when using them? Kind of like the way you would use them on a PC keyboard?
Sent from my SPH-D700 using Tapatalk 2

Last thing I know of that had what you're looking for is CM9 with Samurai Kernel. The processor clocks to 1.5 Ghz and I believe the gpu is overclocked to 400Mhz. Idk what the refresh rate for the screen is, but that combo would probably be the closest to what you're looking for
Sent from my SPH-D700 using Tapatalk 2

jeffreyjicha said:
Last thing I know of that had what you're looking for is CM9 with Samurai Kernel. The processor clocks to 1.5 Ghz and I believe the gpu is overclocked to 400Mhz. Idk what the refresh rate for the screen is, but that combo would probably be the closest to what you're looking for
Sent from my SPH-D700 using Tapatalk 2
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I used it before, it really messed up my phone.
glad to hear/see any follow ups.
using CM10.1 overclocked.

jeffreyjicha said:
Last thing I know of that had what you're looking for is CM9 with Samurai Kernel. The processor clocks to 1.5 Ghz and I believe the gpu is overclocked to 400Mhz. Idk what the refresh rate for the screen is, but that combo would probably be the closest to what you're looking for
Sent from my SPH-D700 using Tapatalk 2
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^^^^this... there is no franco kernel here, that's for the epic touch... nobody has been able to overclock this phone past 1.6 Ghz... samurai had 1.6 at one point, but it was removed because there were stability issues with most phones trying to overclock that high... samurai has always been my favorite kernel from tw gb roms all the way to cm9... sadly development stopped when earthbound upgraded and there is no samurai kernel for cm10 or 10.1... everybodies phone is different and handles overclocking differently... best bet is to just keep trying combinations until you find your perfect match...

SubCool said:
Bump
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I don think you can get what you're looking for . the answers provided should be enough to tell you that this phone can't be oc'ed that much
Sent from my LG-MS770 using xda app-developers app

lmsomb said:
I don think you can get what you're looking for . the answers provided should be enough to tell you that this phone can't be oc'ed that much
Sent from my LG-MS770 using xda app-developers app
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Um- the responses tell me its capable..
HOw do you individually OC the GPU?

SubCool said:
Um- the responses tell me its capable..
HOw do you individually OC the GPU?
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Not possible on cm10... with cm7 you'll have to dig around and search for samurai kernel...

flastnoles11 said:
Not possible on cm10... with cm7 you'll have to dig around and search for samurai kernel...
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I have a link to the CM9 kernel that goes to 1.5Ghz.

flastnoles11 said:
Not possible on cm10... with cm7 you'll have to dig around and search for samurai kernel...
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I have used it on CM9, and got it to 1.4 comfortably, but the kernel itself was quarky as hell. The battery died when unclocked and- just all in all at bad kernel.
im curious on what he did to make it do that though. Was it an app he combined into the kernel? Did he expand something?
Technically- OC"ing is just like any normal OC. INcrease the multiplier or frequency and then manipulate the voltage to handle the work. But- THe couple app i foudn that do that- like uh... setcpu, targek or something all arent supported by our rom/kernel/ something. Its rather frustrating.
With the Packman ROM im using, he combined the Performance control into the rom, and you can actually change the voltages- but.. i cant make it go faster.
TO go on with that- i still cant find a way to OC the GPU. i see people saying they got it up to 400mhz. or something. But- HOW!? an app? Kernel again!? heck, i dont even know what the stock settins are. :/

GPU overclocking is achieved in the kernel.
Friendly Neighborhood Moderator

SubCool said:
I have used it on CM9, and got it to 1.4 comfortably, but the kernel itself was quarky as hell. The battery died when unclocked and- just all in all at bad kernel.
im curious on what he did to make it do that though. Was it an app he combined into the kernel? Did he expand something?
Technically- OC"ing is just like any normal OC. INcrease the multiplier or frequency and then manipulate the voltage to handle the work. But- THe couple app i foudn that do that- like uh... setcpu, targek or something all arent supported by our rom/kernel/ something. Its rather frustrating.
With the Packman ROM im using, he combined the Performance control into the rom, and you can actually change the voltages- but.. i cant make it go faster.
TO go on with that- i still cant find a way to OC the GPU. i see people saying they got it up to 400mhz. or something. But- HOW!? an app? Kernel again!? heck, i dont even know what the stock settins are. :/
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1. He did it by being a kernel master... 2. they aren't supported because of the kernel you're using. 3. And again, the kernel you're using. The only way to overclock the gpu is with the samurai kernel.
4. And most importantly, for everything you want out of a kernel, it's about time to learn Linux and build your own kernel...

flastnoles11 said:
3. And again, the kernel you're using. The only way to overclock the gpu is with the samurai kernel.
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Aww man I miss Samurai's 400MHz GPU OC... But the Voodoo defaults there is VERY terrible... Just why isn't there a kernel with ONLY GPU OC (i.e. no CPU OC up to like 1.4GHz (I think games depend more badly on GPU) and no Voodoo and such)...
Sent from HTC Incredible S @ PACman v21

If you build it, they will flash it!

Yes, for those looking for an easy way out, it's not going to happen. Learn to make a kernel then learn how to manipulate the settings. If it was easy then everyone would be doing it. No one has any other spoon fed answers.

I think not having an easy way out may be the definition of xda-developers. Forget where I read it but it's about the journey rather than the destination, which I know doesn't hold true for every one but I know it does for me.

GPU overclocking kernel request

Found this in another forum. Wanted to get exposure to the possibility.
http://forum.xda-developers.com/showpost.php?p=30087853&postcount=2
From another poster: He references using "siyah" kernel in his S3, which appears to be an international version with the same processor as we have. He indicates the need for "stweaks". He talks about GPU "steppings" so I'm not sure if Andrielux has changed these in his kernel. I installed the app "stweaks" but it wouldn't load as it said "no kernel support".
Wow!!! What in the world. Is this for real? I wonder how stable it is. From 440 up to 800?! They are using some app called Stweaks (and the kernel of course) to do it. Love to see that on our Note 2.
And since it seems that the GPU wasn't changed much....from the Galaxy s2 series... "700 Mhz - 1100 mv" is only 75mv higher than the stock 440...and accoring to the forums stable. A 70% increase in speed and stable. This is a must have for any newer kernels.

His kernel does have it. Read the n7100 thread for directions
Sent from my SPH-L900 using xda app-developers app

Rudyblah said:
His kernel does have it. Read the n7100 thread for directions
Sent from my SPH-L900 using xda app-developers app
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"his kernel". Can you be more specific? Do you have a link to this kernel that we can use on the Sprint GSNII that supports GPU OC?

ZenInsight said:
"his kernel". Can you be more specific? Do you have a link to this kernel that we can use on the Sprint GSNII that supports GPU OC?
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http://forum.xda-developers.com/showthread.php?t=1927852
It's about 1/3 the way down the OP with a beige arrow and a GPU frequency table. The few paragraphs below explain how to overclock the GPU via adb/terminal.
** Edit: AndreiLux just posted a new update which includes STweaks support.

Perseus kernel supports GPU overclocking now using STweaks. And it FLIES. Wow.

ZenInsight said:
Perseus kernel supports GPU overclocking now using STweaks. And it FLIES. Wow.
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Stweaks slow overclocking but if you OC it by 100mhz laugh amd giggles numbers. What kind of actual gpu performance are you getting. I see with.stock better real life performance.during.gaming versus his kernel. So if I were to oc just to match stock is pointless to me.
why overheat the gpu when I can get the same performance on stock kernel.
It has to be the way he has it coded. Till it matches stock and further progress dev for it ill step in. I do appreciate his work and time. But for me I need something better than stock. I got this phone for a reason haha.
Sent from my SPH-L900 using xda premium

XxLostSoulxX said:
Stweaks slow overclocking but if you OC it by 100mhz laugh amd giggles numbers. What kind of actual gpu performance are you getting. I see with.stock better real life performance.during.gaming versus his kernel. So if I were to oc just to match stock is pointless to me.
why overheat the gpu when I can get the same performance on stock kernel.
It has to be the way he has it coded. Till it matches stock and further progress dev for it ill step in. I do appreciate his work and time. But for me I need something better than stock. I got this phone for a reason haha.
Sent from my SPH-L900 using xda premium
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What kind of performance? I beat the Nexus 4 as the highest rating 3D for a GPU in the market on Antutu. And it's noticeably different. Fun for extrme gaming I guess. But it affect the entire speed of the phone too.
Did you try it yet? The kernel is EXCELLENT. Going to donate from my next paycheck to dev. Thanks again.

ZenInsight said:
What kind of performance? I beat the Nexus 4 as the highest rating 3D for a GPU in the market on Antutu. And it's noticeably different. Fun for extrme gaming I guess. But it affect the entire speed of the phone too.
Did you try it yet? The kernel is EXCELLENT. Going to donate from my next paycheck to dev. Thanks again.
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NFSMW, GTA 3, Heavy Gaming. I noticed it was bleh on the kernel. And stock was virtually amazing no fps in fps either even during benchmark. On his kernel the 3d test for quadrant ghe fps dipped below than 58 which was consistent on stock
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XxLostSoulxX said:
NFSMW, GTA 3, Heavy Gaming. I noticed it was bleh on the kernel. And stock was virtually amazing no fps in fps either even during benchmark. On his kernel the 3d test for quadrant ghe fps dipped below than 58 which was consistent on stock
Sent from my SPH-L900 using xda premium
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Strange! I'm on Project ROM Ultra lite 1.2. Have you tried N.E.A.K? He said his kernel is set to 700mhz already (no need for STweaks). Can you test that one?

ZenInsight said:
Strange! I'm on Project ROM Ultra lite 1.2. Have you tried N.E.A.K? He said his kernel is set to 700mhz already (no need for STweaks). Can you test that one?
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Why would I need a kernel to overclock the gpu to match stock gpu clock from stock kernel to get same performance performance. Neak is on the s3 not Note 2 unless he or it in that Rom but still.
I want a custom kernel that can match the GPU performance on the stock kernel without the need of overclocking
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XxLostSoulxX said:
Why would I need a kernel to overclock the gpu to match stock gpu clock from stock kernel to get same performance performance. Neak is on the s3 not Note 2 unless he or it in that Rom but still.
I want a custom kernel that can match the GPU performance on the stock kernel without the need of overclocking
Sent from my SPH-L900 using xda premium
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Note 2 N.E.A.K.-
http://forum.xda-developers.com/showthread.php?t=2000328
Should we test it? I asked him if it will work on the Sprint version of the Note 2. I can't imagine why it would not.

FYI, STweaks is working for the Perseus kernel as of build 27. My GPU is currently at 733Mhz and I've undervolted all settings by 25 - no issues.

honki24 said:
FYI, STweaks is working for the Perseus kernel as of build 27. My GPU is currently at 733Mhz and I've undervolted all settings by 25 - no issues.
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Yep. Seems like a very stable kernel to me. But the guy above is saying that the kernel has low framerates compared to stock. I am hoping he will test the Neak kernel out.

ZenInsight said:
Yep. Seems like a very stable kernel to me. But the guy above is saying that the kernel has low framerates compared to stock. I am hoping he will test the Neak kernel out.
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Sorry but I will not ill be sticking to stock maybe in the future. That kernel seems weird not sure which to choose. And like I said, I don't see the point of downloading a kernel know that will I will basically need to overclock the gpu just to get the same performance as I would on the stock kernel.
Sent from my SPH-L900 using xda premium

overclock problem

I just downloaded the Thor kernel and every time I try to over clock it to 2ghz it says it worked then I exit out of ROM toolbox and go back into it and it turns it all the way back down to 800mhz?

Try a different OC app. Such as voltage control

I've tried 3 different OC apps and they say that its at 2ghz then I run antutu and I get really low scores then I go back into the OC app and it says 800mhz?

Did you try "setcpu"?
sent from my att note II running 4.1.2 jedi xp 9
@yankeesfan714

Are you running a TW based rom or a CM based rom?
Sent from my GT-N7105 using xda premium

I don't know if its a tw or cw based ROM, its cm10.1

Aaron_Woolery said:
I don't know if its a tw or cw based ROM, its cm10.1
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Just a little friendly advice.. honestly I would do a lot more reading before you start OCing that high. The touchwiz/CM difference is at the most basic level of what you need to know to be messing with kernel settings, and while it's obviously up to you what you do with your phone, there's a lot you should learn between what rom your running, and what you're trying to do now.
Sent from my Note 2

zoso28 said:
Just a little friendly advice.. honestly I would do a lot more reading before you start OCing that high. The touchwiz/CM difference is at the most basic level of what you need to know to be messing with kernel settings, and while it's obviously up to you what you do with your phone, there's a lot you should learn between what rom your running, and what you're trying to do now.
Sent from my Note 2
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AMEN to that..overclocking is NOT for Noobs...

Aaron_Woolery said:
I don't know if its a tw or cw based ROM, its cm10.1
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That'll be CM based, is it straight CyanogenMod 10.1 or is it a variant (like jellybam, paranoid android, ect.)?
Sent from my GT-N7105 using xda premium
---------- Post added at 06:27 PM ---------- Previous post was at 06:22 PM ----------
Never mind, guess you said it was cm 10.1. What rom are you using to get to 2ghz?? And on cm? I've been searching all over for a kernel that worked for cm based roms on 4.2+ and haven't found anything. Anyway, try locking the clock speed (there should be a box you can check). If that doesn't work, try changing the governor to "performance". This will lock your phone at the max clock speed (that you have it set to, not the limit the kernel allows). If none of those work, it's probably because it's a phone safeguard -- you're not supposed to have it clocked that fast, it'll overheat your phone. The highest clock speed I've seen is 1.9ghz and that's PLENTY fast in my opinion
Sent from my GT-N7105 using xda premium

I already know that tw is touchwiz and cw is clockwork, I just didn't know if cm was cm or tw. I get what ROMs and kernels are and I understand over clocking, I just don't get why when I try to oc to 1.8ghz it works perfectly fine then when is use 2.0ghz it kicks it back down to 800mhz? The kernel I'm using is the Thor kernel, one of the people on the forums put a pic up of them getting 22,000 on antutu with their note 2 with the exact same setup that I have and it just doesn't work with me whenever I try to do a benchmark is when it kicks it back down. I know that every phone reacts different to over clocking and undervolting and everything but I just don't get why it kicks me back down?

Each processor is a little different. Yours might not be able to handle 2ghz so it might kick back down to protect itself from overheating/crashing. Just a guess

Sweet! Finally found what I've been looking for! Yeah just try a different governor, mine works (and sticks) at 2GHz
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Which governor are you using?

I use either on demand or performance
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