Better battery life? - Nexus S Q&A, Help & Troubleshooting

Hey, I have been playing around with some rom to find the best battery life and recently I wonder if underclocking my CPU to 1000 MHz and below does extend nexus s battery life?
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It does, but it also makes the OS noticeably less smooth and can often take a little longer to get things done. 1000MHz is a good compromise. However, TEUV for example defaults at 880Mhz with an overclocked GPU (220MHz over 200MHz) which is particularly smooth if your phone can handle it and saves an extra little chunk of battery through undervolting. I would go that route rather than 800MHz/200MHz GPU.

Is there any posibl
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Is there any possible way to overclock gpu on 2.3.5 rom?
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Any kernel with LiveOC. Matr1x 11.5 i believe was the latest for GB. You might find a link somewhere for Trinity TEUV for GB too. Unsure of others, wasn't on GB for very long myself.

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Officially Overclocked

Snagged Drod's 1.5gz kernel from ROM Manager and pulled a 2495 on quadrant and 53mflops on Linpack :]
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I saw this as well (although I'll probably stick with adryn's kernel for now). The future is certainly looking bright for the tbolt.
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It's nice. It doesn't have the interactive/smartass governors so I'm definitely sticking with Adrynalyne's kernel. The conservative kernel is just too slow to ramp up (probably due to the huge number of slots) and I'd be worried that ondemand would keep it running at full speed too much and drain my battery.
im not exactly concerned about battery life, ill take the kickass performance thank you very much. no seriously, thank you very much drod!
If your so worried about battery. Use Setcpu profiles with overcook kernal.
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[Q] OC - noob - should I go for it? Risks? Worth it?

Hi.
I a speed freak! If there is something I hate, is lag.
I therefore thought of using a better kernel for my G2x.
As I understand, some kernels can OC the cpu. Wow. That's cool, first of all.
Second - any conclusions about this? Is it safe? Does it really make a difference (i don't game on my G2x)?
THANKS!
Since you obviously don't know how to use the search function, I'll just tell you that it is perfectly safe to install a kernel and constantly run it at 1.5 Gh.
Go buy setcpu from the market to set your processor speed at Max, and leave it there. All the time. No matter what.
Beekersguy said:
Since you obviously don't know how to use the search function, I'll just tell you that it is perfectly safe to install a kernel and constantly run it at 1.5 Gh.
Go buy setcpu from the market to set your processor speed at Max, and leave it there. All the time. No matter what.
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Haha, good answer..Or you can go and download CPU master for free. =)... But honestly overclocking is not good
There's no real speed difference when overclocking install a custom kernel but don't overclocking it its a waste of battery
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risks? yes. it kills your battery faster, and battery life will drop. by battery life, i mean the amount of recharge/discharge cycles it normally will allow will drop.
pros? makes your phone much faster. and no its not a placebo. if you bump up your kernel from 1ghz to 1.5ghz, thats obviously a speed increase. how can it not be faster.
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But also the risk at a constant 1.5 of overheating and burn out of the processor.
if you're a noob and don't know exactly what OC is, don't do that.
it can kill your battery and processor much faster, make you're phone unstable and accidentally overheat and burn out your processor, if you have a constant OC
processor life is worth the wait imo
I oc mine tops 1.2 and its as fast as it needs to be for my needs. I also bump up the minimal speed to about 500-800 cuz our g2x's should never be running that slow even when idle/screen off imo.
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Just saying setcpu is free on XDA
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GTWalling said:
But also the risk at a constant 1.5 of overheating and burn out of the processor.
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I set my cpu to run at minimum when the temp reaches a certain level. It's never actually happened though...my phone runs real cool at 1.4ghz
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Good CPU voltages?

I recently got faux's kernel for GB and I'm wondering what voltages I should use in SetCPU or PimpMyCPU for optimum battery life and performance.
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Every phone is different some can handle extreme uving others can't even boot the phone after flashing the kernel. You have to just try and test until you find something stable and up to your needs.
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I have no experience with cpu overclocking so I really don't know what it means like a -100mv undervolt @1.4 GHZ. Would I get the same performance but use less power??
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GPU Overclocking

I'm that this has been brought up before but could someone tell me how overclocking the GPU is done? It seems to me that the CPU is the most stable and is fine at 1200 MHz and going any higher is just a battery killer. But the GPU seems like it's severely underclocked. (or at the very least could do with some OCing )
Are there any apps that support it on the Charge or some tutorials that can show me where I can experiment with some numbers. I know my bro's Galaxy Nexus kernel has GPU overclocking built into it.
Feel free to give me bad news but if there is any hope i'm up to some leg work and phone sacrificing. lol.
It requires kernel support. PBJ overclocks the GPU some, but it isn't customizable. Beyond that, there isn't a way on the Charge.
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GPU OCing from a UI isn't possible on this device-AFAIK its only possible on the GSII (maybe the nexus). The PBJ kernel OCs it a bit, but imnuts wants to ensure stability vs raw speed.
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What are you overclocked to?

I guess you can consider this thread part survey and part for my knowledge so I know how far I can push this phone. I am at 1728MHz max with the interactive governor and cfq scheduler. Not sure if I'm going to do any undervolting, I can get through the day with about 40% remaining, and I have profiles set up for low battery and such. I am running CM10 with the 747 (I think that's what its called..) kernel and can push it to 2.1GHz. Is it stable at that high of a clockspeed? I can assume it turns your pretty Galaxy S3 into a convenient portable stove
By the way, sorry if this is the wrong section.
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It really depends on your phone, I had mine at 2100 and it was stable. However it can very I had,a, Droid charge that ran the 1440 no problem, had it replaced and the new one could go above 1300 without hot boots. Some phones just hold up better
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kintwofan said:
It really depends on your phone, I had mine at 2100 and it was stable. However it can very I had,a, Droid charge that ran the 1440 no problem, had it replaced and the new one could go above 1300 without hot boots. Some phones just hold up better
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Stock. I've had it clocked to 1.9. But can't tell a difference with real day to day function except for worse battery drain and phone hotter.
Sent from a SYNERGIZED GalaxySIII
I have run the KT747 AOSP kernel at 2.1 ghz for a day or more and had no noticeable increase in heat, or decrease in battery life. (lulzactive or smartass v2 with either cfq or sio scheduler, no voltage changes in KT tweaker) I also saw very little or no gain in real world performance increase, and the benchmarking apps seemed to back that up. Typically run mine at 1.809 currently. Every phone cpu is different in terms of top speed, and voltage settings. Best thing to do, is to test them and see what works best for you. These 2 links, courtesy of the Ktoonez thread, provide some great info on kernel governor and scheduler settings. Given the number of options in KT Tweaker, these helped me a great deal in terms of making changes.
http://forum.xda-developers.com/showthread.php?t=1687578
http://forum.xda-developers.com/showthread.php?t=1369817
I've tried 1998MHz and as you said, it didn't yield much. I think I screwed something up, because now oc settings refuse to stick (resets itself to 1512) and short/long benches are not as great.
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xrawritsjack said:
I've tried 1998MHz and as you said, it didn't yield much. I think I screwed something up, because now oc settings refuse to stick (resets itself to 1512) and short/long benches are not as great.
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Are you on CleanKernel by chance?

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