[Q] Undervolting Dorimanx Kernel [init.d Script (2 choices)]] - HD2 Android Q&A, Help & Troubleshooting and Genera

To reduce Battery Drain I focused on undervolting my HD2.
Therefore I use Dorimanx's 3.8 Kernel that uses an init.d script in which you can set your voltages.
So far so good.
But as I look into the script, there are two rows of VDD Tables, probably one of them to prevent a bootloop.
What am I supposed to change?

Push?
/10char

domimatik said:
To reduce Battery Drain I focused on undervolting my HD2.
Therefore I use Dorimanx's 3.8 Kernel that uses an init.d script in which you can set your voltages.
So far so good.
But as I look into the script, there are two rows of VDD Tables, probably one of them to prevent a bootloop.
What am I supposed to change?
Click to expand...
Click to collapse
The one on the left is minimum value and the one on the right is the maximum value . Also I'm using the same kernel . And I can't find the 96Mhz clock speed in the script . Are the speeds in kHz format ?
Sent from my HTC HD2 using Tapatalk

No, it has to be mHz. (mHz, thanks)
Thanks for your help. Do you have any experience on how far you can undervolt the HD2?

domimatik said:
No, it has to be mHz.
Thanks for your help. Do you have any experience on how far you can undervolt the HD2?
Click to expand...
Click to collapse
Um the speeds in the script are in the formats of kHz and I went down to 900 stable for the 128mhz speed . Just gotta test each one .
Sent from my HTC HD2 using Tapatalk

Related

SetCPU best speed

Hey everyone, just wanted to post this to see what cpu speed works best for you guys.. Im using these preset things with the program like performance or power saver etc but i dont seem to notice a difference all of them seem to be the exact same.. Wondering how to make it good for like 50% power and 50% performance, basicly balancing the 2 out as long as its better than stalk and not burning out my cpu.. so thanks, let me know what works for you guys as ive heard its slightly different for everyone else
(HTC EVO 4G)
I use the standard "ondemand" governor with a 998max-245min, but the thing I found makes the most difference are the settings under "Advanced".
I use the below "Advanced" settings along with a 245-245 screen off profile.
Seems to get me the best battery and cpu scaling.
It also helps to use an undervolting kernel like Freedom-More.
Try that for a couple days.
NOTE: click the apply button a couple of times (might be bug but they sometimes don't take on 1 button click). Try them as is without "Set on Boot", until you are sure that your phone likes them. Plus, check after a reboot that you verify/reapply them.
Sampling rate: 20000
Up Threshold: 85
Ignore nice load: 0
Powersave Bias: 14
I'm at 691200 on smartass governor with 245000 as min on Rcmix rom
Sent from my PC36100 using XDA App
ReapersDeath said:
Hey everyone, just wanted to post this to see what cpu speed works best for you guys.. Im using these preset things with the program like performance or power saver etc but i dont seem to notice a difference all of them seem to be the exact same.. Wondering how to make it good for like 50% power and 50% performance, basicly balancing the 2 out as long as its better than stalk and not burning out my cpu.. so thanks, let me know what works for you guys as ive heard its slightly different for everyone else
(HTC EVO 4G)
Click to expand...
Click to collapse
The "presets" are how the cpu scales i'd use "interactive" or "smartassv2" 245 min and max at 998+ then search around for here for various profile set-ups
I'm running the Gingerbread-Evo-Deck 1.3 with a Savaged Zen 2.2.1 CFS HAVS Kernel. I'm also undervolted 50mV, and using the interactive x governor set at 128MHz-768mhz. Running a few other simple tweaks learned from Carhauler, and I've got excellent battery life and great performance.
I currently run mine on an ICS rom & it comes standard with a tiatmat 4.1.0+ kernel & the cpu is running at about 245mhz-1036mhz with smartass governor(I usually set it to smartass v2 but it switches back to smartass haha). My battery life for me is enough to get me thru the day.
vulcan001 said:
I currently run mine on an ICS rom & it comes standard with a tiatmat 4.1.0+ kernel & the cpu is running at about 245mhz-1036mhz with smartass governor(I usually set it to smartass v2 but it switches back to smartass haha). My battery life for me is enough to get me thru the day.
Click to expand...
Click to collapse
Which ICS rom are you running?
I currently running RCMix3d Runny® Sense 3.5. Should I just got with ICS to overclock or just find a kernel that allows it?
oidrtybtrd said:
I currently running RCMix3d Runny® Sense 3.5. Should I just got with ICS to overclock or just find a kernel that allows it?
Click to expand...
Click to collapse
Get a new kernal. Try Tiamat 4.1
I have my SetCPU at 128min 1152max smartassV2(i CAN overclock up to 1267) with 1 profile:
Screen Off 128min 245max
My battery life is extremely good.

Undervolting the GT-N7000 for better Battery life

Hey there ,
so i wanted to share share my awsome Undervolting results with you
At first im running on Chasmodo's latest CM 10.1 i really appreciate his work ! I use the latest CM 10.1 Kernel.
With his rom and this voltages u find under this introduciton text i could get nearly a month with Standby time
(without doing anything , Wlan turned on , Data off) i attached a screenshot (29 Days and 5 Hours sorry for the German language)
Every day i plug my N7000 out from the Loading station its 5am on 3pm i lost 1%.
to change the Voltages i use SetCPU (full version)
1400 MHz
1200 mV (Stock: 1350mV)
1200 MHz
1100 mV (Stock: 1275mV)
1000 MHz
1000 mV (Stock: 1175mV)
800 MHz
925 mV (Stock: 1100mV)
500 MHz
900 mV (Stock 1000mV)
200 MHz
800 mV (Stock: 975mV)
So i dont know my Voltage group sorry guys , if this values are not working just go in 25mV steps lower from your stock voltage
until the CPU gets unstable or crashes than u know that u cant go lower just do this with every clocking !
I also used this voltages on XXLSC Ultimate Rom with the HydraCoreNirvana Kernel i had fantastic results too but not that good like i get with the Asylum CM 10.1.
PS: Just this Voltages wont give you very good Battery life if your Rom / Settings is/are eating your battery. If you get better results with
lower results (stable) just go ahead and post it but im sure this values are nearly the lowest stable u can get
Code:
Its [U]impossible [/U]to hard brick your device with Undervolting , you only could get a soft brick if you use (Set on Boot) and your voltages will crash your System after boot. thats easy to fix just after the phon booted up fast go into SuperSU and delete the root rights for your Undervolting tool.
Thanks for Reading and if i you liked this push the Thanks button =) !:victory:
Thanks man
I think you should say which Voltgroup (A, B or C) your note is. Because those freq are really low (I think too much low for my note, that's voltgroup B).
Do you remember which voltgroup has your note, when you installed hydracore kernel?
Better i would buy a spare battery rather than spoiling my devices performance. We arr not in 1000BC with no electricity. Sure every one can charge a spare and can switch it.
Sent from my GT-N7000 using xda app-developers app
Bad-Pixel said:
I think you should say which Voltgroup (A, B or C) your note is. Because those freq are really low (I think too much low for my note, that's voltgroup B).
Do you remember which voltgroup has your note, when you installed hydracore kernel?
Click to expand...
Click to collapse
Hey there i dont remember never looked at the Voltgroup sorry so there is no other way to view my Voltgroup ?
Btw just try the voltages without autostart and u will see if your system reboots or if it works if not just go in 25mV steps higher :highfive:
qazibasit said:
Better i would buy a spare battery rather than spoiling my devices performance. We arr not in 1000BC with no electricity. Sure every one can charge a spare and can switch it.
Sent from my GT-N7000 using xda app-developers app
Click to expand...
Click to collapse
Why ?
I cant get your argument my performance is the same speed while im gaming browsing same performance than before .. no impact , drops .. a spare battery ? So what about i dont want to switch my battery ? there is no need for it my battery stays alive for atleast 2-3 days when im doing something with it .
how to do if i only have rom toolbox
SkyKer93 said:
Hey there i dont remember never looked at the Voltgroup sorry so there is no other way to view my Voltgroup ?
Btw just try the voltages without autostart and u will see if your system reboots or if it works if not just go in 25mV steps higher :highfive:
Click to expand...
Click to collapse
It's a feature of the hydracore kernel only I think, because its read a particular value (something about mainboard and/or cpu) and the kernel automatically apply dedicated undevolt values. You could see it in system information, where hydracore kernel is detected. Without it, I think you can't do anything :/
Anyway, sincerely I remember some time ago I tried to lower my already undervolted cpu voltages, and I got freezes. I will try to go lower a bit, hoping it will works. A very important thing, is not only the lower battery drain, but also the lower cpu temps.
ahhl said:
how to do if i only have rom toolbox
Click to expand...
Click to collapse
I bought rom toolbox full sometime ago, when there was sales. If I remember correctly, there is a section relative to the cpu control, but I don't remember if it was undervolting capable also. You should start to search it from there (I'm sorry, I don't have the app installed anymore, so I can't help you properly... In case, use voltage control app)
Sent from my GT-N7000 using xda premium
I dont think it has UV feature. Just CPU freq control
nokiamodeln91 said:
I dont think it has UV feature. Just CPU freq control
Click to expand...
Click to collapse
Yes, you're right, I just checked (installing my bought pro version) and it hasn't the uv features. Anyway, as I suggested, he can use voltage control (even if I don't know if his kernel support the uv/oc)
Sent from my GT-N7000 using xda premium
nokiamodeln91 said:
I dont think it has UV feature. Just CPU freq control
Click to expand...
Click to collapse
Bad-Pixel said:
Yes, you're right, I just checked (installing my bought pro version) and it hasn't the uv features. Anyway, as I suggested, he can use voltage control (even if I don't know if his kernel support the uv/oc)
Click to expand...
Click to collapse
What do you mean by Rom Toolbox doesn't have voltage control?
Tap kernel tweaks, then any frequency and you'll find a voltage slider in there.
chasmodo said:
What do you mean by Rom Toolbox doesn't have voltage control?
Tap kernel tweaks, then any frequency and you'll find a voltage slider in there.
Click to expand...
Click to collapse
Maybe it depend from the kernel I'm using now (philz 3.99 on BurtRom tw rom) but I can't able to do what you said. I checked on rom toolbox pro again, and I didn't see any uv feature. Just goverors/kernel tweaks (like vm or fs features) or profiles management... Nothing else.
Anyway I'm using tegrak ultimate app to Undervolt my cpu and gpu, and it works perfectly, so I don't miss so much that feature.
Sent from my GT-N7000 using xda premium
I don't know - I am not sure if Undervolting could hard-brick or damage the hardware but back then running GB roms I had undervolted FM Kernel and there was trrrr trrr trrr like sound from my Note.
Be careful.
I have to do a custom rom just to see if its all true....otherwise am not interested at all in undervolting my phone. Hope its true...
Sent from my GT-N7000 using xda app-developers app
Boy124 said:
I don't know - I am not sure if Undervolting could hard-brick or damage the hardware but back then running GB roms I had undervolted FM Kernel and there was trrrr trrr trrr like sound from my Note.
Be careful.
Click to expand...
Click to collapse
never had any problems and just logical cpus could brick if you give them too mutch voltage , if you give them less voltage the system only can crash your sound could have been beacuse it crashed so really u cant hard brick your device with undervolting ... maybe a softbrick if your unstable voltage settings are on autostart.
qazibasit said:
I have to do a custom rom just to see if its all true....otherwise am not interested at all in undervolting my phone. Hope its true...
Sent from my GT-N7000 using xda app-developers app
Click to expand...
Click to collapse
no need for a custom rom mate , you just need a custom kernel wich is able to uv for example HydraCoreNirvana
Bad-Pixel said:
Maybe it depend from the kernel I'm using now (philz 3.99 on BurtRom tw rom) but I can't able to do what you said. I checked on rom toolbox pro again, and I didn't see any uv feature. Just goverors/kernel tweaks (like vm or fs features) or profiles management... Nothing else.
Anyway I'm using tegrak ultimate app to Undervolt my cpu and gpu, and it works perfectly, so I don't miss so much that feature.
Sent from my GT-N7000 using xda premium
Click to expand...
Click to collapse
Hey there , you cant uv with Philz kernel just read his thread check his FAQ there hes writing that hes not supporting
oc/uv its just a repacked stock kernel
use HydraCoreNirvana but when you download the kernel check that its the OC version if not than you cant change your voltage like with Philz kernel.
:highfive:
SkyKer93 said:
Hey there , you cant uv with Philz kernel just read his thread check his FAQ there hes writing that hes not supporting
oc/uv its just a repacked stock kernel
use HydraCoreNirvana but when you download the kernel check that its the OC version if not than you cant change your voltage like with Philz kernel.
:highfive:
Click to expand...
Click to collapse
You can you can
Just use tegrak ultimate Overclock app. I bought it because I think it's the only who give you the possibility to Undervolt the gpu also. Initially, philz kernel wasn't supported, but now it is. I undervolted my cpu setting the values that I had using the hydracore kernel oc. And today I lowered them of another - 25mV also. Everything works nicely until now
Sent from my GT-N7000 using xda premium
qazibasit said:
Better i would buy a spare battery rather than spoiling my devices performance. We arr not in 1000BC with no electricity. Sure every one can charge a spare and can switch it.
Sent from my GT-N7000 using xda app-developers app
Click to expand...
Click to collapse
Nice attitude you are showing there. Oh, there is plenty of power, let's waste.it! Really, that kind off attitude is definitely going to make the world a better place
What's more why do you think undervolting does influence the performance? It only influences the power consumtion and if you go too far it does render the phone unstable. But it certainly does not in-, or decrease the cpu's performance.
Sent from my revived Galaxy Note
---------- Post added at 01:50 AM ---------- Previous post was at 01:45 AM ----------
Bad-Pixel said:
You can you can
Just use tegrak ultimate Overclock app. I bought it because I think it's the only who give you the possibility to Undervolt the gpu also. Initially, philz kernel wasn't supported, but now it is. I undervolted my cpu setting the values that I had using the hydracore kernel oc. And today I lowered them of another - 25mV also. Everything works nicely until now
Sent from my GT-N7000 using xda premium
Click to expand...
Click to collapse
Yep tegrak definitely does the trick with PhilZ kernels. I have been using it for at least 8 months now and my phone is undervolted too. Only the highest cpu state is overvolted because I overclocked it to 1552 MHz instead of 1400.
Sent from my revived Galaxy Note
I would love this kernel under ubls4 if it has a proper exfat support. Until this is not fixed like philz kernel, I can not test or try
Sent from my GT-N7000 using xda premium
altae said:
Nice attitude you are showing there. Oh, there is plenty of power, let's waste.it! Really, that kind off attitude is definitely going to make the world a better place
What's more why do you think undervolting does influence the performance? It only influences the power consumtion and if you go too far it does render the phone unstable. But it certainly does not in-, or decrease the cpu's performance.
Sent from my revived Galaxy Note
---------- Post added at 01:50 AM ---------- Previous post was at 01:45 AM ----------
Yep tegrak definitely does the trick with PhilZ kernels. I have been using it for at least 8 months now and my phone is undervolted too. Only the highest cpu state is overvolted because I overclocked it to 1552 MHz instead of 1400.
Sent from my revived Galaxy Note
Click to expand...
Click to collapse
Please explain why you overvolted AND overclocked the highest cpu state. Doesn't this shorten your batteries performance?
Did you changed cpu governor or something else (like screen off profile to reduce CPU) to achieve 1% battery loss at 3pm?
And was that with mobile data on?
jcbobeda said:
Please explain why you overvolted AND overclocked the highest cpu state. Doesn't this shorten your batteries performance?
Click to expand...
Click to collapse
I overcloked the highest cpu state from 1400 Mhz to 1552 Mhz because I want more performance. And because my phone became unstable with the 1552 Mhz and the standard voltage. So now my phone saves energy when the lower cpu states are active and it has a bit of extra power at the expense of battery life when it needs the most processing power. All in all that gives me better battery life than with stock settings and a snappier device when needed. For me this is the ideal solution.
Sent from my revived Galaxy Note

[Q] Undervolting and cpu binning ?

Hi,
I'm reading topics like franco kernel or faux kernel or cpu binning, and i don't understand what undervolting is using for... And how doing it ?
Plus, i don't understand what cpu binning is for, even if i get there is cpu slow and some fast.
Thanks for your answer !
Sent from my Blade S using xda app-developers app
AutruiP said:
Hi,
I'm reading topics like franco kernel or faux kernel or cpu binning, and i don't understand what undervolting is using for... And how doing it ?
Plus, i don't understand what cpu binning is for, even if i get there is cpu slow and some fast.
Thanks for your answer !
Sent from my Blade S using xda app-developers app
Click to expand...
Click to collapse
The binning decides which voltages you can run your cpu on, those with better "quality" cpu (faster) can run a lower voltage. This does not affect frequencies, so you don't have to worry if you have a nominal binned cpu for example.
As a general guideline, I've read that faster can be undervolted -150 mV, fast -100 mV and nominal -50 mV.
YOUR MILEAGE MAY VARY, SO ALWAYS USE PRECAUTIONS WHEN DEALING WITH UNDERVOLTNING. USE ON YOUR OWN RISK
How to find out which binning you have and more information:
IAmAN00bie said:
Hey fellow Nexus 4 owners, I heard a lot of rumors that the "Nexus 4 uses left-over parts" from the Optimus G. To that end, I want to find out the general quality of our CPUs.
Basically, when Qualcomm makes the APQ8064 chip that you see in our Nexus 4, there are 4 different "types" based on how it meets their quality standards. These are Slow, Nominal, Fast, and Faster. The main difference IIRC between these types is how stable each can handle undervolting. CPUs that are "Fast" for example come pre-configured at a lower nominal voltage than a "Nominal" type CPU, and more so than a "Slow" type. (Does this account for how some people's phones generate less heat? Maybe, maybe not. IIRC, there's like only a -100mV difference between Faster and Slow out of the box, however Faster CPUs should be able to handle lower voltages than Slow-type.)
To find out what binned CPU you have, I recommend the following:
YOU MUST BE ROOTED!
1) Install Terminal Emulator
2) Reboot your phone
3) Open Terminal Emulator, and type:
Code:
su
dmesg | grep PVS
A line should be outputted that tells you what type you have.
For example, mine is NOMINAL. http://i.imgur.com/MUXrs.png
...
Click to expand...
Click to collapse
Sent from my Nexus 4
Is running a lower voltage is dealing with performances or only with battery ?
Sent from my Blade S using xda app-developers app
AutruiP said:
Is running a lower voltage is dealing with performances or only with battery ?
Sent from my Blade S using xda app-developers app
Click to expand...
Click to collapse
It only affects battery (mostly temperature actually). Basically how good your chip is determines how much voltage it requires to run at a certain speed. Because not all chips are created equal and the manufacturer has to make sure that all of the chips run stable, they set the voltage levels at a conservatively high number. This means that unless your chip is the worst chip that LG expects to produce, you can run your cpu at lower voltages than stock.
It was theorized that the binning of the cpu would be a good indicator of how good your chip is but it looks like it might not be the case.
To undervolt, you have to first flash a kernel that supports it (most custom kernels do) and then download an app like Franco kernel updater or system tuner and you can start adjusting voltages.
Some things to note before you start: if you undervolt too low your cpu becomes unstable which means it will freeze your phone and force it to restart. This does NOT damage anything physically so don't be afraid of it. But this means that you should not have the app set voltages on boot while you are experimenting with them. This would open up the possibility that you set a voltage to an unstable level, forcing your phone to reboot, upon which the app will reapply the instable voltage. This will keep you in a boot loop and force you to re flash the kernel) and/or rom. Just keep it manual until you have set of stable voltages.
Good luck!
AutruiP said:
Is running a lower voltage is dealing with performances or only with battery ?
Sent from my Blade S using xda app-developers app
Click to expand...
Click to collapse
I have a nominal one. The default for the lowest frequency (384, i dont remember exactly) is 900. I made a -150 for all frequencies. it has been running for 3 days without a restart. And for my own feeling, games as well as the whole phone run normally. And when running games, it is less hot than using the default one (900).
Hm, i see, thanks !
Another (and i hope the last one) question, how could i know if i set the voltage to the right value ? Is this any app for testing if it crash ?
AutruiP said:
Hm, i see, thanks !
Another (and i hope the last one) question, how could i know if i set the voltage to the right value ? Is this any app for testing if it crash ?
Click to expand...
Click to collapse
Basically if it runs, you're fine. You want to find the lowest voltage for each frequency at which your phone will run normally. One way of doing this is setting your min and your max cpu frequency to the one that you're testing and adjust the voltage and run a cpu intensive task like a benchmarking or playing a video. However, I find that they are a little more finicky than that and you may find that in normal usage, a voltage that you tested doing that will still crash your phone.
I personally do it over a week or so normally using my phone and gradually adjusting the voltages down to the lowest stable

[Q] Nexus 4 Franco Kernel

I Currently flashed franco kernel on my nexus 4 . My question should I leave everything to default ? And how to exactly do I under volt in franco. I have really never under volted
Thanks
dia_naji said:
I Currently flashed franco kernel on my nexus 4 . My question should I leave everything to default ? And how to exactly do I under volt in franco. I have really never under volted
Thanks
Click to expand...
Click to collapse
Default settings are fine for a decent battery life. UV doesn't really increase the battery life; its used to reduce the heating when using processor intensive apps (games). But if you don't know what you are doing, its recommended that you don't change any settings.
Sent from my Nexus 4
blitzzz3434 said:
Default settings are fine for a decent battery life. UV doesn't really increase the battery life; its used to reduce the heating when using processor intensive apps (games). But if you don't know what you are doing, its recommended that you don't change any settings.
Sent from my Nexus 4
Click to expand...
Click to collapse
That's really my intention. Right now I am running
384 mhz- 725mV
1026 Mhz-900mV
1512 Mhz-1024 mV
Do you have the Franco kernel app?
dia_naji said:
That's really my intention. Right now I am running
384 mhz- 725mV
1026 Mhz-900mV
1512 Mhz-1024 mV
Click to expand...
Click to collapse
I have UV about 100mV with the franco kernel app. so pretty much like what you have done and I haven't noticed any loss of performance.
Sent from my Nexus 4
Yes
Sent from my Nexus 4
decided to bump this instead of starting a new thread
Is it pretty much the consensus that undervolting w franco kernel on the N4 doesn't noticeably increase battery life?
spitswap said:
decided to bump this instead of starting a new thread
Is it pretty much the consensus that undervolting w franco kernel on the N4 doesn't noticeably increase battery life?
Click to expand...
Click to collapse
I haven't notice any significant increase in battery life, if any. However, the device runs so much cooler than before.
I am now experimenting with 150mV UV. Haven't had any problems with stability or camera.
Sent from my Nexus 4
Undervolting can somewhat increase battery life. Undervolting is meant for lowering CPU power to reduce thermal heat and it will definitely increase the life of the CPU. It doesn't really increase battery life, it might save a little bit but not much.
Sent from my Nexus 4 using Tapatalk 2
Got a question for Franco kernel + Franco Kernel updater app user
Do you have the hotplug control in Frequencies/Voltages menu? It seems to be not there for me. If I flash it with stock kernel then the hotplug control is there but can't change anything. If I flash it with Franco's kernel, then the hotplug control is missing.
Using Franco's latest R119 kernel
frozzbyte said:
Got a question for Franco kernel + Franco Kernel updater app user
Do you have the hotplug control in Frequencies/Voltages menu? It seems to be not there for me. If I flash it with stock kernel then the hotplug control is there but can't change anything. If I flash it with Franco's kernel, then the hotplug control is missing.
Using Franco's latest R119 kernel
Click to expand...
Click to collapse
Franco didn't add hotplugging feature back yet. He might add it back in the next app update.
Sent from my Nexus 4 using Tapatalk 2
frozzbyte said:
Got a question for Franco kernel + Franco Kernel updater app user
Do you have the hotplug control in Frequencies/Voltages menu? It seems to be not there for me. If I flash it with stock kernel then the hotplug control is there but can't change anything. If I flash it with Franco's kernel, then the hotplug control is missing.
Using Franco's latest R119 kernel
Click to expand...
Click to collapse
Something similar happened to me while I was using faux. You have to flash the rom first and kernel later. If you flash kernel first and then the rom some of the features on kernel settings might disappear.
Hotplug is available since quite long time.
Nothing to do with flashing Roms.
Unleashed by my Nexus 4
thought I'd bump instead of starting a new thread.
what's the best settings for the cpu hotplug control? I've set suspend frequency to 384000, suspend frequency is the CPU frequency when the screen if off?
cores on touch is how many CPU cores get used when screen is touched? I kept this to 2.
now I'm not too sure what first_level is used for though. so I left it at 60.
the new app is good but lacks description for some of the settings.
alpha-dog said:
thought I'd bump instead of starting a new thread.
what's the best settings for the cpu hotplug control? I've set suspend frequency to 384000, suspend frequency is the CPU frequency when the screen if off?
cores on touch is how many CPU cores get used when screen is touched? I kept this to 2.
now I'm not too sure what first_level is used for though. so I left it at 60.
the new app is good but lacks description for some of the settings.
Click to expand...
Click to collapse
Do u want to apply the 'best settings' to increase battery life or performance? And I'm using the ones you have stated, pretty balanced stuff. Keep it that way

[Q&A] Samsung Kernel

While we don't have any custom kernel as of yet, there are few apps that can change how the cpu behaves.
My findings are that the app kernel adiutor works the best for changing parameters.
Hopefully we can share experience with tweaks in this thread. I have been using cpu input boost at 1305 mhz and cpu sync freq at 1344. This to prevent fast jumps to 1401 mhz and 1190 mhz.
Have you ever noticed that if you boot the device with just wifi ticked in, the cpu0 rests at 300 mhz? (While the other cores are turned off.)
Enable mobile data and the idle state becomes 1190mhz.
There is a parameter that can be changed. However this parameter is soon changed by some unspecific process.
check it with
Code:
cat /sys/power/cpufreq_min_limit
Disabling qualcomm hotplug solution makes all the cores run at 300 mhz, is it bad for battery life?
Can you solve otg problem with making custom kernel?
Samsung Kernel
sk1887 said:
While we don't have any custom kernel as of yet, there are few apps that can change how the cpu behaves.
My findings are that the app kernel adiutor works the best for changing parameters.
Hopefully we can share experience with tweaks in this thread. I have been using cpu input boost at 1305 mhz and cpu sync freq at 1344. This to prevent fast jumps to 1401 mhz and 1190 mhz.
Have you ever noticed that if you boot the device with just wifi ticked in, the cpu0 rests at 300 mhz? (While the other cores are turned off.)
Enable mobile data and the idle state becomes 1190mhz.
There is a parameter that can be changed. However this parameter is soon changed by some unspecific process.
Click to expand...
Click to collapse
Disable APP freq_min_limit Kernel for stok firmware
has anyone tried this kernel, does it work?
Nekto78 said:
Disable APP freq_min_limit Kernel for stok firmware
Click to expand...
Click to collapse
How do you do that? I'll test your kernel. please elaborate
I've created 2 custom kernels, one for cm11 and one for stock fom, give a look and try.
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sk1887 said:
How do you do that? I'll test your kernel. please elaborate
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Is compiled from source, after making the necessary changes.
sev3n1985 said:
I've created 2 custom kernels, one for cm11 and one for stock fom, give a look and try.
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Yup I've been trying your stock kernel; you have implemented new governors, which are great.
I've been testing alucard and darkness since yesterday. They seem to both provide less high frequency spikes. But I will test more.
Nekto78 said:
Is compiled from source, after making the necessary changes.
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I've just tested your kernel and the freq_min_limit "problem" (or feature whatever it is) is solved.
Using mobile data, the cpu idles at 300MHZ, finally :good:
Why don't you two join forces and compile kernel with both your features? sev3n1985 's kernel with the disabled freq_min_limit. That would benefit a lot.
The next feature to include would be the quick charge. Thanks guys

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