[Q] SetCPU on stock kernal, anyone have results? - EVO 4G Q&A, Help & Troubleshooting

I really do not want to flash a new rom/kernal.
Has anyone used SetCPU on their stock kernal? SetCPU now has that perflock disabler that automatically activates on start-up. I was wondering if anyone can post results that they have had with SetCPU and the stock kernal.
Thanks.

doesnt matter it doesnt work on stock kernels from what i know....
as i understand it you still need a oc enabled kernel.
you can underclock i think right.. but not overclock.
again i think.
but i dont oc... havs...undervolting.. it doesnt matter. you just destroy battery life when you oc the phone.
Sent from my PC36100 using XDA App

Why don't you just try it yourself? I don't mean for that to sound condescending or anything, I'm just curious why you wouldn't just take 2 mins to try it yourself.
Sent from your mom's phone.

There was a pretty big thread about this on ppcgeeks a while back when the Evo first came out and no custom kernels were around. Back then, it had no impact because the kernel didn't support it like the custom ones do. However, there were some that swore it did (placebo effect).
EDIT: I haven't read the thread with the newer RUU releases, so it might be possible now if HTC built support in the kernel. As mentioned above, give it a try and see how it works for you.

nukedukem said:
Why don't you just try it yourself? I don't mean for that to sound condescending or anything, I'm just curious why you wouldn't just take 2 mins to try it yourself.
Sent from your mom's phone.
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Because by the time I can see results, 24 hours would have already passed and I lose out on my refund if it doesn't work.
But, I am going to give it a try, screw it. I've spend $2 on stupider things. I'll report back after I have had ample time to test it with the Perflock off function.

ritzbrie said:
Because by the time I can see results, 24 hours would have already passed and I lose out on my refund if it doesn't work.
But, I am going to give it a try, screw it. I've spend $2 on stupider things. I'll report back after I have had ample time to test it with the Perflock off function.
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It's here for XDA members ...
http://forum.xda-developers.com/showthread.php?t=505419

SetCPU works just fine for setting the CPU on a stock kernel. You just can not overclock. And I don't know why everyone is so obsessed with overclocking. I mean it is 12% or 13% at best which isn't a lot. IMHO. And the drain on already poor battery life isn't worth it. 1Ghz is plenty fast enough. However, underclocking is a great thing.
Sent from my iPhone with the bigger Gee Bees.

Related

Setcpu

Is anyone using setcpu? I bought it back when I had the hero but I'm not sure if it will work now on this phone. I'm rooted using toast's method if that even matters for something like this. thanks in advance!
It's the same CPU as the Nexus and it has settings for the Nexus, so in theory it should work. I had a Nexus before this phone and it worked fine.
I believe, like the Hero, you need a kernel tweak to have true overclocking.
yeah I dont wanna overclock i just want to downclock when the screen is off to save battery. I tried using the nexus one settings but it didnt seem like it was working using on demand. The clock speeds it was showing were kind of goofy. Guess i should wait for the programmer to update it
tkrechel said:
yeah I dont wanna overclock i just want to downclock when the screen is off to save battery. I tried using the nexus one settings but it didnt seem like it was working using on demand. The clock speeds it was showing were kind of goofy. Guess i should wait for the programmer to update it
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what?!? what do you mean u dont want to oc... theres always room for more speed!
true that but i have always been nervous about burning up the processor hehe
Overclocking would be nice, but I'd also like to save some battery with the on demand profile. Does anyone have it working?
I posted a patch in a thread in the development forum that would enable full support, plus overclocking, but nobody seems to have noticed it.
I might have to buy an EVO just to compile and test kernels... Or, if anybody wants to help me, shoot me a PM.
I used the unrevoked method to root and picked the N1 for the device in setcpu and it seems to be working great with the on demand setting. I have noticed a nice increase in battery life so far.
coolbho3000 said:
I posted a patch in a thread in the development forum that would enable full support, plus overclocking, but nobody seems to have noticed it.
I might have to buy an EVO just to compile and test kernels... Or, if anybody wants to help me, shoot me a PM.
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Is it linked or built-in?
If it's linked I'd be more than happy to test!
yea i use 1.5.4 pro edition... i make it go to 245mhz while idle/sleep... it works perfectly... and it runs 'ondemand'... if you dont need speed it wont go... i keep it to start at boot, and have ATK to ignore it so it doesnt close... theres no lag btw when it moves back to 998mhz

battery drain and Snap with CM6?

CM6 is definitely great, I think without question it is a vast improvement.
The only issue I have is my battery life is ABSOLUTELY HORRIBLE. Could be the worst battery life I've had with any phone. But maybe that's just the EVO, with it's big screen and speedy processor. I underclock to 384 mhz sometimes but then the thing slows down and even freezes. I have 3 different batteries and they all perform about the same (not good.) Before I had a partial wake issue but that's gone, and battery life still stinks. I've also tried calibrating but nothing really seems to make it better.
I hear the snap thing is good for battery life but I everytime I open that thread I get a headache. I love this phone and am obsessed wtih it but that thread is a bit much even for me!
Can anyone give me a quick and dirty explaination of what snap is / how to use snap? Which kernel to flash? Some day I hope to digest that mammoth of a thread, but right now I'm too busy reading texts for college and Just want better battery life.
Thanks!
Download app System Panel. Will help show you what is eating up your battery/resources.
Then, download app Juice Defender. Worth it to get the paid version. Its like 3 bucks IIRC. This will help you get more battery life out of your phone.
-Sent from my Evo.
nyc_zx10 said:
Download app System Panel. Will help show you what is eating up your battery/resources.
Then, download app Juice Defender. Worth it to get the paid version. Its like 3 bucks IIRC. This will help you get more battery life out of your phone.
-Sent from my Evo.
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Yeah, I tried System Panel but the things eating my battery were mostly system things, like Browser. I guess I could give it another go.
Why are Juice Defender reviews so bad? I've considered it before also, maybe will try playing with it again
snap 8.2 is the current release. you can try any of the kernels, but i would avoid the 7.0/7.1 SD Card implementations since that technology has been put on the back burner for a bit.
Snap allows you to you Overclock and Undervolt (aka: UV).
Overclocking of course is for speed and Undervolting may save battery.
all EVOs are not created equal. some like undervolting some do not. so snap is available in multiple flavors. each with a different UV floor. the lower the floor the more potential battery saving..but also the more chance for a random reboot or wifi/gps acting funny. remember UV retards the amount of power so things can act goofy. the different UV floors are 800mv - 925mv. for example...i use the 8.2_900 because it works well with my EVO. the 8.2_800 booted great but after a while started rebooting itself. 8.2_850 just hung at bootup. the 8.1 kernels didn't work for me at all. 7.3b1 was great.
HAVs is adaptive..so don't get stressed if your device fails to boot properly the first time. wipe the cache/dalvik and try again.
so download a few of the 8.2 kernels.
make your nandroid
begin trial and error (I'd suggest starting at 800, 850 then 900 to get a feel)
don't be afraid to wipe the Cache and Dalvik multiple times.
don't worry about the whole thread. just grab the last few pages and read the OP. then feel free to ask.
i also recommend setCPU. you can find some threads for SetCPU configurations to help. BUT....make sure SetCPU is disabled when flashing the new kernel. once you get a working kernel you can enable SetCPU...but during testing phase it will give you gray hair.
jmxp69 said:
Just a few quick thoughts on voltages/freqs after seeing a handful of discussion in the thread:
1) Every 8.2 kernel has voltages lower than stock. The default stock voltage @ 245 is something around 1050.
2) No real effort is made to UV at the top end. It's a little lower, but the objective at the highest CPU frequency is not to UV. Most of the benefit of UV comes at the low end of the scale when your phone is idle (most of the time). Less voltage = less draw.
3) nHAVS scales voltage at each step. There is a min.max voltage at every cpu frequency. This range is fairly small--50-75mv, but it enables HAVS to decide based on feedback from the CPU which one to apply. And the max at each step is lower than stock. So no matter how you slice it, even if you're running 925, you are undervolted. This becomes a question of how undervolted.
4) OC is not about undervolting, it's about overclocking. The differences is voltage vs. frequency. OC means we're increasing the CPU frequency beyond stock which is 998mhz in the case of Evo. If you move your SetCPU slider beyond 998mhz, you're overclocking.
The objective of overclocking is speed. The objective of undervolting is battery savings. Snap gives you both. We overclock when we increase the fequency with SetCPU. We undervolt automatically via nHAVS. As of this writing, UV is handled in the kernel, it happens most at the bottom end of the frequency scale.
I hope this helps clear up some of the questions. Great conversation by the way.
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GREAT EXPLANATION Dragin!!!
and also, to the OP.... dont forget, if you do go with setcpu, do NOT 'set on boot' mmmmkay??? lol
Thank you Dragin!!!
That helps a lot! So once you have Snap setup at what you feel is "good" does your phone seem to perform as well as before you had it undervolted? Man, sounds like a pretty involved process - maybe I better wait until I can really sit down and play with it.
goodelyfe said:
GREAT EXPLANATION Dragin!!!
and also, to the OP.... dont forget, if you do go with setcpu, do NOT 'set on boot' mmmmkay??? lol
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Do you mean for the first flash? Or every time you boot your phone?
If not set on boot, it means you have to start SetCPU manually after each boot. Doesn't seem right
Sent from my PC36100 using XDA App
foueddyf said:
Do you mean for the first flash? Or every time you boot your phone?
If not set on boot, it means you have to start SetCPU manually after each boot. Doesn't seem right
Sent from my PC36100 using XDA App
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I think he's talking about when ur figuring out the best setup
Regarding Juice:
I didn't really read too much into the reviews for this particular app. It works. I was having battery issues. Downloaded Juice, got the settings somewhat right to my liking and so far no complaints. Unplugged my phone from charger this morning at roughly 9am, been using it moderately all day, and as of right now at 12:50am, I am at 29%.
Bad reviews or not, I can attest to it working and making a difference in battery life.
Sent from my PC36100 using XDA App
I had the same issue, left to stock with kingx.
Sent from my PC36100 using XDA App
nyc_zx10 said:
Regarding Juice:
I didn't really read too much into the reviews for this particular app. It works. I was having battery issues. Downloaded Juice, got the settings somewhat right to my liking and so far no complaints. Unplugged my phone from charger this morning at roughly 9am, been using it moderately all day, and as of right now at 12:50am, I am at 29%.
Bad reviews or not, I can attest to it working and making a difference in battery life.
Sent from my PC36100 using XDA App
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Do you know what in particular Juice is doing to give you better battery life? like what does Turn off certain things based on conditions or?
That is some good battery life.
Correct.
You can set conditions to do certain things. Such as disable data/3g/wifi while screen is off. Also if you need data synced you can set a condition to enable data wifi or 3g for X minutes every X minutes/hours.
I am not affiliated with the dev in anyway but it def made a difference and was worth the price for it.
Sent from my PC36100 using XDA App
nyc_zx10 said:
Correct.
You can set conditions to do certain things. Such as disable data/3g/wifi while screen is off. Also if you need data synced you can set a condition to enable data wifi or 3g for X minutes every X minutes/hours.
I am not affiliated with the dev in anyway but it def made a difference and was worth the price for it.
Sent from my PC36100 using XDA App
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Meh... see I really don't want to do those things. I can turn off data sync myself and just have gmail forward me a text message when I have an email. I just was hoping there was a way to get decent battery life without going back to the days of Winmo
I absolutely adore CM6, but I'm really starting to think that it is not battery friendly. Last night my battery went from full to 25% in 8 hours. I had nothing running, my partial wake was fine, and Android system took up 60%+. I really don't feel like doing another wipe, but it looks like I may have to. Just want it to work right at this point.
Again, I truly love CM6, the open source concept, the transparency, the whole clean idea of it, but there is something seriously wrong with the battery life (at least in every install I have tried)
berardi said:
I absolutely adore CM6, but I'm really starting to think that it is not battery friendly. Last night my battery went from full to 25% in 8 hours. I had nothing running, my partial wake was fine, and Android system took up 60%+. I really don't feel like doing another wipe, but it looks like I may have to. Just want it to work right at this point.
Again, I truly love CM6, the open source concept, the transparency, the whole clean idea of it, but there is something seriously wrong with the battery life (at least in every install I have tried)
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i agree with you. but i also feel that CM6 is on par with the Official HTC/Sprint ROM when it comes to battery life expectancy. however, after i put on the snap kernel and copied someones setcpu config....i got 26+hrs of 'use it as i wish' time + still had about an hour of in-pocket time left. i was hooked. i bet you an imaginary dollar the same will happen for you.
as for finding your EVOs kernel made in heaven...
it's not too bad so long as you have some time. but if you are time strapped, need your phone in 20min and don't read the OP... you will curse and swear. expect to get hung up at the HTC splashscreen a few times and it will bootloop on you before your done. <I'd suggest just leaving your battery cover off until you are done muckn about for that session>
klick may be easier for the some end users because of fewer selections. I've never used his kernels. if i try them, i'll prolly wait till he's put out a few AOSP versions...to work out any bugs.
oh yeah...one odd thing, it seems that sometimes folks flash a incompatible kernel it gets 'stuck'. after that 'bad flash' they are unable to flash any kernel until after they have nandroided back and rebooted...then they can flash again. i had this happen twice....i was unable to get a known good kernel to load until after i restored from backup. /shrug
oh....try this. download the snap7.5_925 kernel. if it runs smooth. call it a day and you should be pretty happy with that until the new versions come out. yeah, if you got one of the _800 kernels running you may pull an extra 30-45min of time...but that requires a level of geekdom that not everyone has.
DraginMagik said:
i agree with you. but i also feel that CM6 is on par with the Official HTC/Sprint ROM when it comes to battery life expectancy. however, after i put on the snap kernel and copied someones setcpu config....i got 26+hrs of 'use it as i wish' time + still had about an hour of in-pocket time left. i was hooked. i bet you an imaginary dollar the same will happen for you.
as for finding your EVOs kernel made in heaven...
it's not too bad so long as you have some time. but if you are time strapped, need your phone in 20min and don't read the OP... you will curse and swear. expect to get hung up at the HTC splashscreen a few times and it will bootloop on you before your done. <I'd suggest just leaving your battery cover off until you are done muckn about for that session>
klick may be easier for the some end users because of fewer selections. I've never used his kernels. if i try them, i'll prolly wait till he's put out a few AOSP versions...to work out any bugs.
oh yeah...one odd thing, it seems that sometimes folks flash a incompatible kernel it gets 'stuck'. after that 'bad flash' they are unable to flash any kernel until after they have nandroided back and rebooted...then they can flash again. i had this happen twice....i was unable to get a known good kernel to load until after i restored from backup. /shrug
oh....try this. download the snap7.5_925 kernel. if it runs smooth. call it a day and you should be pretty happy with that until the new versions come out. yeah, if you got one of the _800 kernels running you may pull an extra 30-45min of time...but that requires a level of geekdom that not everyone has.
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Thanks man, appreciate the breakdown.
You have inspired me, I'm going to bite the bullet and try this snap7.5_925 kernel. I'll report back my luck
I do enjoy this stuff, really - just right now it would be irresponsible for me to spend too much time on it. School comes first right now.
DraginMagik said:
... after i put on the snap kernel and copied someones setcpu config....i got 26+hrs of 'use it as i wish' time + still had about an hour of in-pocket time left. i was hooked. i bet you an imaginary dollar the same will happen for you.
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Wow, I'd love to have that kind of time with CM6, right now I drain at about 10% an hour with no usage at all; where can I find that setcpu config? I really like CM6 but battery life is killing me right now.
loupy said:
Wow, I'd love to have that kind of time with CM6, right now I drain at about 10% an hour with no usage at all; where can I find that setcpu config? I really like CM6 but battery life is killing me right now.
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Yeah dragin, don't hog those sweet settings! I'm enjoying Snap 7.6 and it seems to be helping out my battery life a bit, but I'd love to see your SetCPU details.
I've found that the issue for me is bluetooth. If I have it on constantly my battery will drain 10-15% per hour. With bluetooth off it's only draining 1%-2% per hour.
Seems like the bluetooth needs work on CM6 in order to have the efficiency that the other ROMs i've tried (Fresh and EViO) have. Nonetheless, I'm sticking with CM6 and just use the bluetooth when necessary.
I have the same issue with bluetooth on CM 6.0.0. I am running the stock kernel that comes with cyanogenmod, so this is definitely not a snap issue. There was a bug submitted about a month ago:
code.google.com/p/cyanogenmod/issues/detail?id=2136
I *really* hope this can get fixed for the 6.1 release, but it is currently listed with a low priority. I really love CM6, but basically making bluetooth unusable for more than a few hours really makes me struggle with the using this rom.
Why not the 7.6 with turbo...just wonderin

Is it worth overclocking and undervolting Sprints galaxy s 2?

Running EL29 Odexed Blue Rom with EL26 stock kernal.
Just came from eVo 4G and have no idea if its worth it and if so what setting.
Any advice would be appreciated.
Sent from my SPH-D710 using XDA App
I've not done the undervolting yet but I'm thinking about it just still reading on what I want to do. I did however do the overclocks for a few days and imo only I really saw no need for it from the stock settings so I just went back to normal. The phone is fast enough for me even playing games that extra 1-2-3-400 mhz really didn't show that much of a difference.
Again this is my opinion others see the need for it I just didn't.
cidica said:
I've not done the undervolting yet but I'm thinking about it just still reading on what I want to do. I did however do the overclocks for a few days and imo only I really saw no need for it from the stock settings so I just went back to normal. The phone is fast enough for me even playing games that extra 1-2-3-400 mhz really didn't show that much of a difference.
Again this is my opinion others see the need for it I just didn't.
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Thanks for you're opinion. Let me know how the undervolting goes if you decide to do it.. I wonder if vipermod would work with this device. I had it with my evo and it was pretty easy to use.
feelingnerdi said:
Thanks for you're opinion. Let me know how the undervolting goes if you decide to do it.. I wonder if vipermod would work with this device. I had it with my evo and it was pretty easy to use.
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I think viper mad some stuff for the phone. I know he has a rom out for the phone already so maybe his tweaks are there you could always check the dev section.
My phone had freezing issues at anything higher than 1.4ghz, but even then the only real difference I saw was quadrant scores. Games ran the same, in fact I think the UI actually was choppier when OC'ed. Never really looked into it much though.
I don't even know why I tried it in the first place, I never said to myself "gee, this could be faster.." I guess coming from an HTC Hero it was a habit.
this phone does NOT need to be over clocked; it is so much faster than your Evo, that you won't believe it!
Undervolting and under clocking can give you extra battery life; do a search on the Dev thread, and you will learn lots about it..

Screen gets HOT

I know for a fact the phone gets hot when playing some games like Asphalt 7 and that is understandable but it never used to get hot while in regular use such as browsing the web or text messaging on stock and i could have the screen on for an hour. Ever since i installed CM10 and now on AOKP by task650 I have noticed the bottom half of the phone gets very warm even when doing simple things. I have the brightness set to auto at all times and within 15 minutes or so it starts to get hot.
Does this happen to anyone else or its just me? Also maybe there is a tweak for the screen in the ROM?
How long has it been since you installed these AOSP roms. In my experience, it takes one or two days for everything to settle down after installation, during which the phone might overheat and battery life takes a hit. My advice would be to give it some time, but if you're really worried, try fixing permissions or even going back to a touchwiz ROM.
jebise101 said:
I know for a fact the phone gets hot when playing some games like Asphalt 7 and that is understandable but it never used to get hot while in regular use such as browsing the web or text messaging on stock and i could have the screen on for an hour. Ever since i installed CM10 and now on AOKP by task650 I have noticed the bottom half of the phone gets very warm even when doing simple things. I have the brightness set to auto at all times and within 15 minutes or so it starts to get hot.
Does this happen to anyone else or its just me? Also maybe there is a tweak for the screen in the ROM?
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I am having the same problem with CM10. I have tried multiple nightlies with the stock CM10 kernel and my phone just seems to run warmer. I can't figure it out. When I flash back to the stock ROM it doesn't do it unless like you said, I am playing Asphalt or some other games.
Nah not worried because i have extended warranty on my phone. Its just i like my electronics to function the way they should and when they don't i HAVE to fix them or i will loose my mind, plus its kinda annoying when hold it.
I know it needs a few charge cycles and installed CM earlier this week so its been at least 3 days, but still noticed the phone heating up. I installed AOKP today and will try cycling the battery a few times.
Pardon my ignorance but why would fixing permissions have anything to do with this? Also there is no negative effects to doing this? I don't see any as it wil just mark everything rwx-r--r-- or whatever the default is, but just want to confirm.
RobbieL811 said:
I am having the same problem with CM10. I have tried multiple nightlies with the stock CM10 kernel and my phone just seems to run warmer. I can't figure it out. When I flash back to the stock ROM it doesn't do it unless like you said, I am playing Asphalt or some other games.
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I was thinking it maybe the CM kernel, would you mind flashing Kooz kernel? If you have CM for a few days. I still testing AOKP so might be a while before i can flash.
The bottom of mine gets real hot after about 15 minutes of browsing on LTE. It did it right out of the box, and I'm on stock.
Stock ICS on my S3
I disabled LTE yet its still gets hot.
jebise101 said:
Nah not worried because i have extended warranty on my phone. Its just i like my electronics to function the way they should and when they don't i HAVE to fix them or i will loose my mind, plus its kinda annoying when hold it.
I know it needs a few charge cycles and installed CM earlier this week so its been at least 3 days, but still noticed the phone heating up. I installed AOKP today and will try cycling the battery a few times.
Pardon my ignorance but why would fixing permissions have anything to do with this? Also there is no negative effects to doing this? I don't see any as it wil just mark everything rwx-r--r-- or whatever the default is, but just want to confirm.
I was thinking it maybe the CM kernel, would you mind flashing Kooz kernel? If you have CM for a few days. I still testing AOKP so might be a while before i can flash.
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That's what I was thinking it might be and no, I don't mind flashing the other kernel. As a matter of fact, I was wanting to try that myself but I couldn't figure out wich download I needed off the link that you just posted. Wich one should I download and flash with CM10? He's got several flashable kernels posted under the "Downloads" section. I just need to know wich one I need to use with CM10.
jebise101 said:
Nah not worried because i have extended warranty on my phone. Its just i like my electronics to function the way they should and when they don't i HAVE to fix them or i will loose my mind, plus its kinda annoying when hold it.
I know it needs a few charge cycles and installed CM earlier this week so its been at least 3 days, but still noticed the phone heating up. I installed AOKP today and will try cycling the battery a few times.
Pardon my ignorance but why would fixing permissions have anything to do with this? Also there is no negative effects to doing this? I don't see any as it wil just mark everything rwx-r--r-- or whatever the default is, but just want to confirm.
I was thinking it maybe the CM kernel, would you mind flashing Kooz kernel? If you have CM for a few days. I still testing AOKP so might be a while before i can flash.
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Fixing permissions tends to remedy certain glitches on my end. I don't nearly have enough knowledge to tell you why though. However, there are certain aspects of this phone that will lead to heat production no matter what you do: lte chip; powerful dual core CPU, etc. Furthermore, aosp ROMs are not stable nor are they fully optimized for the phone at this point, this will also lead to more resources being spent, which ultimately results in faster heat production. If it really bothers you, stick to what works and flash a stock ROM.
Sent from my SGH-I747 using xda premium
RobbieL811 said:
That's what I was thinking it might be and no, I don't mind flashing the other kernel. As a matter of fact, I was wanting to try that myself but I couldn't figure out wich download I needed off the link that you just posted. Wich one should I download and flash with CM10? He's got several flashable kernels posted under the "Downloads" section. I just need to know wich one I need to use with CM10.
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You need to flash one of the AOSP JB kernels since you are on CM10. I can't tell you which one because that depends on which nightly you have installed. I guess there was major code changes after the 14th.
IUH1991 said:
Fixing permissions tends to remedy certain glitches on my end. I don't nearly have enough knowledge to tell you why though. However, there are certain aspects of this phone that will lead to heat production no matter what you do: lte chip; powerful dual core CPU, etc. Furthermore, aosp ROMs are not stable nor are they fully optimized for the phone at this point, this will also lead to more resources being spent, which ultimately results in faster heat production. If it really bothers you, stick to what works and flash a stock ROM.
Sent from my SGH-I747 using xda premium
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Yeah but it never did that with stock and its not a deal breaker i love AOKP no way am i flashing back to touchwiz. You know the ROM has been so stable that I expected everything to work but your right its not stable yet and some things are probably not optimized and that is the cause for the phone to heat up more then usual or kernel. Guess it can't hurt to make a nandroid and then fix permissions and if it goes south i have a backup:victory:
jebise101 said:
Yeah but it never did that with stock and its not a deal breaker i love AOKP no way am i flashing back to touchwiz. You know the ROM has been so stable that I expected everything to work but your right its not stable yet and some things are probably not optimized and that is the cause for the phone to heat up more then usual or kernel. Guess it can't hurt to make a nandroid and then fix permissions and if it goes south i have a backup:victory:
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Yeah, to my understanding, chipsets are designed to withstand a heat threshold of about 60 degrees Celsius. It is extremely hard to get it to that temp at stock speeds, so I wouldn't worry too much about something going awry with your phone.
Sent from my SGH-I747 using xda premium
jebise101 said:
You need to flash one of the AOSP JB kernels since you are on CM10. I can't tell you which one because that depends on which nightly you have installed. I guess there was major code changes after the 14th.
Yeah but it never did that with stock and its not a deal breaker i love AOKP no way am i flashing back to touchwiz. You know the ROM has been so stable that I expected everything to work but your right its not stable yet and some things are probably not optimized and that is the cause for the phone to heat up more then usual or kernel. Guess it can't hurt to make a nandroid and then fix permissions and if it goes south i have a backup:victory:
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Ok. Thanks. I'll figure it out.
Can a mod please delete this unintended post?
RobbieL811 said:
Ok. Thanks. I'll figure it out.
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hehe keep me posted. I fixed permissions, we will see how it goes.
jebise101 said:
hehe keep me posted. I fixed permissions, we will see how it goes.
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I've clean flashed the new nightly and task's kernel. My phone still seems to be running warm! I'll run it for about 24 hours or so and see how it does. IDK what the hell it could be. Is there other people running CM10 that are having this same problem? And by the way...Do you know of a fix for the MMS? My pictures that were taken vertically show up in an MMS horizontally and visa versa. Is there no way to fix that?
RobbieL811 said:
I've clean flashed the new nightly and task's kernel. My phone still seems to be running warm! I'll run it for about 24 hours or so and see how it does. IDK what the hell it could be. Is there other people running CM10 that are having this same problem? And by the way...Do you know of a fix for the MMS? My pictures that were taken vertically show up in an MMS horizontally and visa versa. Is there no way to fix that?
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It seemed a bit better today, but then i been out all day and its been wet and cold so might not have noticed. Its not Task's kernel but rather Kooz but they do work together. Can you also keep an eye on battery life? his kernel is suppose to have amazing battery life and CM/AOKP for me have very bad battery life. Also make sure to cycle the battery at least 3 time.
NOTE: Battery cycling mean charging it to 100% and letting it die to 0% and repeating, this will calibrate the battery and maybe will help.
Just a recommendation for you to give AOKP a try. I always used CM, but CM had some bugs when i tried so i thought might as well give AOKP a try and its actually been solid and has more features then CM. Best part is the build in LED configuration for apps/notifications.
These devs make it so hard to choose, both are very good ROMS.
Yeah. That's a problem I have too. I can't decide which one I want. The KT 747 kernel has seemed to take care of my heat problems. I was cycling the battery anyways. Where can I get the AOKP ROM? Is it posted under original development? The 747 kernel also gave me some much better benchmark scores!
Edit - I see in ktweaker where you can change some voltages but I have NO clue about any of that! Any advice? I think there is a thread on here somewhere about it. I'll have to find it & read it I guess.
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RobbieL811 said:
Yeah. That's a problem I have too. I can't decide which one I want. The KT 747 kernel has seemed to take care of my heat problems. I was cycling the battery anyways. Where can I get the AOKP ROM? Is it posted under original development? The 747 kernel also gave me some much better benchmark scores!
Edit - I see in ktweaker where you can change some voltages but I have NO clue about any of that! Any advice? I think there is a thread on here somewhere about it. I'll have to find it & read it I guess.
Sent from my SAMSUNG-SGH-I747 using XDA Premium App
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go into the ktweaker voltages then hit menu and you have an option to add or subtract 5-25 mv. Take away a bit and do a stress test if its good then try some more etc etc. You get the picture
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thatsupnow said:
go into the ktweaker voltages then hit menu and you have an option to add or subtract 5-25 mv. Take away a bit and do a stress test if its good then try some more etc etc. You get the picture
Sent from my SGH-I747M using xda premium
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Yeah. But the lower I set my voltages, will that affect the speeds that my phone runs at? Idk how to word my question. I guess what I'm saying is, if I lower the voltage on my 1.5GHz setting will it make my benchmark lower?
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RobbieL811 said:
Yeah. But the lower I set my voltages, will that affect the speeds that my phone runs at? Idk how to word my question. I guess what I'm saying is, if I lower the voltage on my 1.5GHz setting will it make my benchmark lower?
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Pfft! You should know at this point in the game that benchmarks mean nothing, its all about real world performance. Basically I'd just start playing around its the only way to learn what works and what doesn't on your device! Cause afterall every device is different no 2 chips are the same, what works on one device might not work on another
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Yeah. I know. I guess I didn't necessarily mean my benchmark. I guess I meant speed.
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Ktoon's KT747 2/8/13 Kernel vs Task650's 2/10/13 Kernel

What are your guys' opinions on the performance of these two kernels? From what I've gathered it seems like KToon's kernel is meant for overclocking, but then what would one use task's for?
Task's recent update to his kernel makes me want to try it because I've been using KToon's kernel with the ktoonservative governer and row scheduler UV'ed a little bit but unlocked to 2.1GHz and have been having some pretty bad battery life in mu opinion, do you think switching to task's kernel would be better on the battery?
Well what do you guys think?
Fun Fact for the day. Versus threads get shut down in no time here on XDA.
P.S- Why wouldn't you just try it first before making a thread about it? Kernels take about 3 seconds to flash. Also. No one can tell you that you will get better battery life on one or the other considering all of the variables. We are all in different locations, use different apps, have different settings, and we all use our devices differently. You need to try them both out and see which one works better for YOUR device.
Man why are ya giving me a hard time? You kicked me out of your thread, which I understood and respect, but then you come here and tell me the same thing you told me before and that my thread's gonna go to the bin in no time.
I'm just trying to find out what the DIFFERENCES between the kernels are, because it isn't very clear in reading the descriptions/OP's,
They wouldn't co-exist if they were exactly the same.
I'm not too interested in tweaking the hell out of my device nor do I care too much about overclocking...I just want a lot of screen time and the ability to play games and SMS with little lag.
I have tried out both kernels and didn't really notice much difference because I didn't really know what to look for.
Like, okay or example, it seems to me that your kernel is less for tweaking and isn't for overclocking (max 1.6GHz or something?) while KToons can go to 2.1.
berryman13 said:
Man why are ya giving me a hard time? You kicked me out of your thread, which I understood and respect, but then you come here and tell me the same thing you told me before and that my thread's gonna go to the bin in no time.
I'm just trying to find out what the DIFFERENCES between the kernels are, because it isn't very clear in reading the descriptions/OP's,
They wouldn't co-exist if they were exactly the same.
I'm not too interested in tweaking the hell out of my device nor do I care too much about overclocking...I just want a lot of screen time and the ability to play games and SMS with little lag.
I have tried out both kernels and didn't really notice much difference because I didn't really know what to look for.
Like, okay or example, it seems to me that your kernel is less for tweaking and isn't for overclocking (max 1.6GHz or something?) while KToons can go to 2.1.
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I'm not giving you are hard time. I'm just telling you the facts here. If you're not into tweaking and messing with things then this is simple and really shouldn't make a difference to you which one you use other than battery life, less lag, ect... Which no one can tell you one is better than the other for. Flash one and don't touch the settings for it and use it how you normally would for a day or two. Then do the same for the other kernel. See which one gets you the best results. Its the only way to find out. Not quite sure why you're refusing to take my advice here. Its pretty straight forward.
There's kernel source in both threads that explain in DETAIL all the DIFFERENCES between the two. It literally only takes seconds to flash and see for yourself. This shouldn't be a big deal at all.
I think they re two of the same.Task just doesnt want KT to know he borrowed his kernel...lol jk. But seriously,they're pretty similar.KT seems better on the performance end but I never got the exceptional battery stats that ppl keep posting,IdK it may be something on my end. On the other hand, task's seemed better on my battery as I could not noticeably see my battery drain during use as I did on Kt's. Furthermore my phone does get hot really fast on task kernel,I'm guessing its cuz we use performance control and can't really play in the voltages as much.
gilo123 said:
I think they re two of the same.Task just doesnt want KT to know he borrowed his kernel...lol jk. But seriously,they're pretty similar.KT seems better on the performance end but I never got the exceptional battery stats that ppl keep posting,IdK it may be something on my end. On the other hand, task's seemed better on my battery as I could not noticeably see my battery drain during use as I did on Kt's. Furthermore my phone does get hot really fast on task kernel,I'm guessing its cuz we use performance control and can't really play in the voltages as much.
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Or all or any of that could be due to the apps your have on your device, the settings you choose, ect...
P.S- My phone has never gotten hot. Probably due to what I mentioned above.
task650 said:
If you're not into tweaking and messing with things then this is simple and really shouldn't make a difference to you which one you use other than battery life, less lag, ect... Flash one and don't touch the settings for it and use it how you normally would for a day or two. Then do the same for the other kernel. See which one gets you the best results. Its the only way to find out. Not quite sure why you're refusing to take my advice here. Its pretty straight forward.
There's kernel source in both threads that explain in DETAIL all the DIFFERENCES between the two. It literally only takes seconds to flash and see for yourself. This shouldn't be a big deal at all.
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I have flashed both kernels. And I don't mean that I am not planning on doing ANY tweaking whatsoever, I just don't mean like messing with voltages adding or subtracting 25 at a time until my CPU crashes so I can find the under/overclock limit...that's the kind of tweaking I have no interest in trying. I'm not gonna look through he sources of both kernels, come on dude you know I'm not a dev and that level of detail is un-necessary.
Your kernel being capped at 1.6GHz probably is better on battery but I also have a sixaxis controller and like to game, does it affect 3D performance at all?
gilo123 said:
Ithey're pretty similar.KT seems better on the performance end but I never got the exceptional battery stats that ppl keep posting,IdK it may be something on my end. On the other hand, task's seemed better on my battery as I could not noticeably see my battery drain during use as I did on Kt's. Furthermore my phone does get hot really fast on task kernel,I'm guessing its cuz we use performance control and can't really play in the voltages as much.
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This is the kind of posts I'm looking for in this thread. Do you personally find task's kernel's performance to be any worse than KT's? Cause you said bettery life seemed better.
Also, are the same governers and I/O schedules available between both kernels? The only settings I'm used to using is ktoonservative and row, I wouldn't really know what to do in performance control to emulate what I've done in KTweaker.
berryman13 said:
This is the kind of posts I'm looking for in this thread. Do you personally find task's kernel's performance to be any worse than KT's? Cause you said bettery life seemed better.
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He cannot answer this question honestly. He doesn't have your device. You're not understanding. He can have the best battery life possible on my kernel but if you use it, you could have the worst battery life possible. IT'S DEVICE DEPENDENT. Will you please just do yourself a favor and take 3 seconds, flash the kernel, and see. You say you've tried them both, but you are also asking about playing games and what not with them? You would know if you had tried them dude. Same goes for the governors & schedulers. You would also know that if you had actually tried them both. I need to ask you this. Why won't you just try them and see for yourself. Are you really the type of person to flash what people tell you to your expensive device?
Look dude. I'm only trying to help you here. I'm not quite sure why you wouldn't just take my advice here. I have quite a bit of experience with this stuff and I'm trying to help you get the best experience possible. But it seems as though you think that personal opinions of others are whats best for your device when in all reality they are not. Real life testing is what will prove to be best for your device. Trust me.
berryman13 said:
I have flashed both kernels. And I don't mean that I am not planning on doing ANY tweaking whatsoever, I just don't mean like messing with voltages adding or subtracting 25 at a time until my CPU crashes so I can find the under/overclock limit...that's the kind of tweaking I have no interest in trying. I'm not gonna look through he sources of both kernels, come on dude you know I'm not a dev and that level of detail is un-necessary.
Your kernel being capped at 1.6GHz probably is better on battery but I also have a sixaxis controller and like to game, does it affect 3D performance at all?
This is the kind of posts I'm looking for in this thread. Do you personally find task's kernel's performance to be any worse than KT's? Cause you said bettery life seemed better.
Also, are the same governers and I/O schedules available between both kernels? The only settings I'm used to using is ktoonservative and row, I wouldn't really know what to do in performance control to emulate what I've done in KTweaker.
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What You won't have on underwear kernel vs kt747: ktoonservative gov, vibration strength control, screen off max freq control, screen off gov control, fast charge, MHz range from 96 to 2106, undervolting capabilities and adjustments to governors and schedulers.
If you don't want to undervolt or tweak anything, I recommend you use underwear kernel. It is stable fast and oc to 1674mhz is alright for any gaming and it doesn't affect 3d performance.
If you wanna use ktoonservative governor then you will have no choice but to use kt747.
But anyway, what you really need is to try both and familiarize yourself with their features.
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liltitiz said:
What You won't have on underwear kernel vs kt747: ktoonservative gov, vibration strength control, screen off max freq control, screen off gov control, fast charge, MHz range from 96 to 2106, undervolting capabilities and adjustments to governors and schedulers.
If you don't want to undervolt or tweak anything, I recommend you use underwear kernel. It is stable fast and oc to 1674mhz is alright for any gaming and it doesn't affect 3d performance.
If you wanna use ktoonservative governor then you will have no choice but to use kt747.
But anyway, what you really need is to try both and familiarize yourself with their features.
Sent from my SGH-I747 using xda app-developers app
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Comprehensive list. I like it. Now I gotta figure out which gov I'm gonna use when I flash the underwear kernel.
Thanks everybody for their input, if anyone else has anything to say then please go for it!
Wiping cache + dalvik and flashing underwear kernel then fixing permissions and rebooting and gonna take a look around performance control to see whats up.
task650 said:
Or all or any of that could be due to the apps your have on your device, the settings you choose, ect...
P.S- My phone has never gotten hot. Probably due to what I mentioned above.
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Ohh Thnx man. While you're here any suggestions as to how I go about fixing/finding out which apps are responsible? Also,any combinations/settings you might recommend trying with your kernel,despite the phone dependent variables and what not. Thnx )
Running the underwear kernel today, changes frequencies min and max to the farthest it can go. Will report back with my results.
Sent from my SGH-I747 using xda app-developers app
Sorry man, but no need to report back here as it has already been stated that each User's experience will differ upon usage, apps, personal habits, planet alignment,... Boils down to a flash and see type thing.
Thread Closed
Here is some info on Governor and I/O schedulers. Obviously it isn't going to include Ktoonservative or ROW but you get the idea.

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