just bought a Le Pro 3 and couldn't find any kernel or rom that could under volt. is there any rom or kernel to under volt?. Thx
To undervolt you mean to make the cpu frequencies lower? I am doing that with a program called Kernel Tuner. You can set the CPU and GPU speed and set the CPU governor from there.
The phone it has to be rooted.
motanel_pufos said:
To undervolt you mean to make the cpu frequencies lower? I am doing that with a program called Kernel Tuner. You can set the CPU and GPU speed and set the CPU governor from there.
The phone it has to be rooted.
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what i mean is to lower the CPU or GPU voltage.
I don't know how to do that. As I said, I use Kernel Tuner to set the maximum cpu/gpu speed the phone can go. It's not the same thing. But is better than nothing. The phone works really good even with lower frequencies and I don't need top speed except some greedy games. Now I can reach a sot of over 6 hours with 4-5 hours of heavy gaming.
If you can find a way do undervolt please post it.
Claire2001 said:
what i mean is to lower the CPU or GPU voltage.
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No kernels offer access to the voltage table yet. UV isn't available and I don't think it'll come.
Ace42 said:
No kernels offer access to the voltage table yet. UV isn't available and I don't think it'll come.
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thanks for confirming, time to return the pro 3 or sell it at a loss. was just hoping that out there somewhere there would be a kernel that has the feature to undervolt.
I still don't see the point of undervolting the CPU/GPU on a phone. As long as it works fine and the battery last long enough (and honestly this phone have plenty of battery, I recharge every 2 or 3 days), why?
ZeblodS said:
I still don't see the point of undervolting the CPU/GPU on a phone. As long as it works fine and the battery last long enough (and honestly this phone have plenty of battery, I recharge every 2 or 3 days), why?
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Because he used to do that on older device, and thinks this is some kind of a must function lol. I also have no clue why on earth you would need to underclock pro 3, it doesnt overheat, and it has probably best battery life of all snapdragon 821 devices. Undervolting this device would gain you absolutely nothing, nonsense.
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The question is simple, the higer the freq. the more battery consumption? i am asking because i cannot see any difference from 1.4GHZ to 1.0GHZ, the battery consumption is the same under oxygen and francos kernels. i would be grateful if the experts would give us some advise or their opionion. I know it is subjective but i would like a second opinion.
Thanks alot guys
If you look with any cpu spy app, you cab see on what clock the processor is used. I mainly have it the lowest and sometimes higher. When you change the max, it should still automatically choose what clock is used, so battery should last as much as before, if not used in high clock.
Sent from my Huawei u8800 using XDA App
Invicta said:
The question is simple, the higer the freq. the more battery consumption? i am asking because i cannot see any difference from 1.4GHZ to 1.0GHZ, the battery consumption is the same under oxygen and francos kernels. i would be grateful if the experts would give us some advise or their opionion. I know it is subjective but i would like a second opinion.
Thanks alot guys
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Probably not much difference, when you overclock, think the cpu voltage remains the same as it is on 800mhz... And the highest cpu freq is rarely even at use...
Invicta said:
The question is simple, the higer the freq. the more battery consumption? i am asking because i cannot see any difference from 1.4GHZ to 1.0GHZ, the battery consumption is the same under oxygen and francos kernels. i would be grateful if the experts would give us some advise or their opionion. I know it is subjective but i would like a second opinion.
Thanks alot guys
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Well, thanks to most devoted users of U8800, we have somewhat better speed+battery life than stock also. To answer your question, yes depending on your activity the frequency have some impact, but overall shouldn't be huge in change, for example from .800 to 1.0GHz will not affect so much in daily use. However from .800 to 1.5GHz would make a somewhat huge gap difference. This doesn't mean it will drain faster if you do same activity as with .800 to 1.0GHz, for example check the watch, answer sms or few "entertainment" breaks. Only when using the phone over a longer period of time that's when you will notice the change of battery life with different frequency. Hope it clears up most hums and huhs for you. I am pretty sure some expert within this field will give a better explanation than me.
Bye~
higher freqs uses more energy, but lower uses less energy but do things slower (so energy consumption is longer). ALSO imo - if you set cpu to 1Ghz the lowest value so it always is 1ghz - it will not consume the same amount of energy if it's in idle mode - it's like your laptop - if cpu is working only in 4-7% of it's power - then the power consumption is lower no matter what freq - how do we know that? - because of heat - the more heat you get - the more energy was used. and when cpu is idle - it will not be hot.
So the answer is - if it saves then in VERY minimal amounts. But even so - i use min freq - 360mhz. it's good for me i do not get any lag so i use it.
I use the "Root System Tool Free", option CPU and I see the graphics of all clocks.
For ex. now at 245 mhz ->46%, at 368 ->10%, at 768 mhz ->18% .... and at 1612 mhz -> 1,8%, at 1804 mhz ->4,9%. Not very mutch use at 1804.
Oxygen-test-140911 + Franco.Kernel1709#1. Clock at 1804 Mhz by Menu-settings-cpu ... and smartassV2 (no profils).
The battery, I charge it all 24 hours. But I like my work... and testing things. When then will dead...I see...
ValenteL said:
I use the "Root System Tool Free", option CPU and I see the graphics of all clocks.
For ex. now at 245 mhz ->46%, at 368 ->10%, at 768 mhz ->18% .... and at 1612 mhz -> 1,8%, at 1804 mhz ->4,9%. Not very mutch use at 1804.
Oxygen-test-140911 + Franco.Kernel1709#1. Clock at 1804 Mhz by Menu-settings-cpu ... and smartassV2 (no profils).
The battery, I charge it all 24 hours. But I like my work... and testing things. When then will dead...I see...
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cpu spy is more pretty, anyway all those apps just reads text file of cpu stat and that's it
Tommixoft said:
cpu spy is more pretty, anyway all those apps just reads text file of cpu stat and that's it
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Thanks
But I like more the Root System Tool, because has also a Linux Console. I use it when I want make some cmd's Linux in #. I don't like the Terminal Emulator.
Well, there is a "catch" somewhere in there. The frequency does indeed affects the power consumption of the CPU and greatly at that too! But the thing is, your CPU is not the worst enemy of your battery life. Even though CPU consumes more power in higher frequencies, it still can not compete with what your screen LEDs or your GSM module or your GPS chip consumes leisurely. So, if you're looking at the overall picture -meaning if you're wondering if it will affect how long you'll be able to use your battery in your phone- the answer is, "yes but not so much". Especially if you're switching the CPU frequency based on the demand (like using smartass or on-demand governors)
Here are the thing that sucks your batteries life juice like a vampire :
Your Screen (especially background LEDs)
GSM module (talking, using GPRS/Edge/3G network communication)
GPS chip
Wireless module (this also includes Bluetooth, even though it does not consume as much as Wireless network access but everything is relative -think about playing music through A2DP headphones compared to having your wireless network active but not using it much-)
(oh yes, I love to use lots of parenthesis -and even this hyphenation thingy- )
Correct me if I'm wrong about anything by the way ..
Regards ..
I did some experiments with a msm8250 a while back and there's a graph here:
http://forum.xda-developers.com/showpost.php?p=14324649&postcount=3786
msm7x30 should be fairly similar though the graph is probably shallower since it's a smaller process size.
The CPU uses no power when it's not in use, even with the display on, the CPU is powered down completely when idle (power collapse).
Has anyone treid undervolting I used the setxperia its pretty useful i dnt know if it does undervolt or not does anyone know im using doomkernel latest
If you mean underclock then yes you can underclock using even the stock kernel. The only advantages you will get with underclocking is slightly better battery life but your phone will be slower.
I dont recommend underclocking your phone any lower than 800mhz, If you clock it any lower than that you will start to notice the slowness.
faisaldante said:
Has anyone treid undervolting I used the setxperia its pretty useful i dnt know if it does undervolt or not does anyone know im using doomkernel latest
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I'm undervolted pretty good, my 1.5 GHz runs at the stock 1GHz voltage (1200) it does help a little. The lower frequencies are where you're going to see better battery while your screens off.
Sent from my R800i using Tapatalk
Clienterror said:
I'm undervolted pretty good, my 1.5 GHz runs at the stock 1GHz voltage (1200) it does help a little. The lower frequencies are where you're going to see better battery while your screens off.
Sent from my R800i using Tapatalk
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So you noticed d difference in batteries and stuf
faisaldante said:
So you noticed d difference in batteries and stuf
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Yea, I notice the most battery gain from when its sleeping with a setcpu profile to keep it at minimum mhz when the screen is off.
Sent from my R800i using Tapatalk
I think your all mixing underCLOCK and underVOLT, underCLOCK means you lower the clock speed below the stock clock making the phone consume less power, you can use SetCPU to do that
http://www.appbrain.com/app/setcpu-for-root-users/com.mhuang.overclocking
underVOLT is when you reduce the power to the CPU at various frequencies an app such as setxperia like the OP said or myrt undervolt can do that for you,
http://www.appbrain.com/app/myrt-undervolt-gui/com.myrt.myrtundervoltgui
This helps you save more power but can lead to shutdowns if you really reduce the power too much. So yeah, stop confusing the two, it's annoying
also you can use system tuner pro !
it can do all the options at once .
ff7fan4eva said:
I think your all mixing underCLOCK and underVOLT, underCLOCK means you lower the clock speed below the stock clock making the phone consume less power, you can use SetCPU to do that
http://www.appbrain.com/app/setcpu-for-root-users/com.mhuang.overclocking
underVOLT is when you reduce the power to the CPU at various frequencies an app such as setxperia like the OP said or myrt undervolt can do that for you,
http://www.appbrain.com/app/myrt-undervolt-gui/com.myrt.myrtundervoltgui
This helps you save more power but can lead to shutdowns if you really reduce the power too much. So yeah, stop confusing the two, it's annoying
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Me? No I'm not confused. I notice the most battery savings when I undervolt the lowest frequency and set the profile in setcpu to keep the frequency at the lowest possible. This is because your phone is sitting with the screen off 80%-90% of the time. I don't notice as much of a battery savings by undervolting higher frequencies but I'm sure its there.
Sent from my R800i using Tapatalk
ff7fan4eva said:
I think your all mixing underCLOCK and underVOLT, underCLOCK means you lower the clock speed below the stock clock making the phone consume less power, you can use SetCPU to do that
http://www.appbrain.com/app/setcpu-for-root-users/com.mhuang.overclocking
underVOLT is when you reduce the power to the CPU at various frequencies an app such as setxperia like the OP said or myrt undervolt can do that for you,
http://www.appbrain.com/app/myrt-undervolt-gui/com.myrt.myrtundervoltgui
This helps you save more power but can lead to shutdowns if you really reduce the power too much. So yeah, stop confusing the two, it's annoying
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My bad at least I learned something new
Undervolting's great, I've actually got my 1Ghz frequency running stable at voltage of 975 instead of 1200. In fact, that's the farthest drop I could get with any of the frequencies though (voltage of 950 almost works, but it's not friendly when booting)
i see that some kernels have the GPU overclocked by default
is it safe for the gpu to be overclocked all the time?
dannaoj said:
i see that some kernels have the GPU overclocked by default
is it safe for the gpu to be overclocked all the time?
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Yes, I'm pretty sure it is.
I'm not sure how it affects your battery though, but I assume that there's a sleep mode/downclock/whatever for the GPU too(not just the CPU).
even if you play games for a couple of hours?
dannaoj said:
even if you play games for a couple of hours?
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As long as the numbers aren't crazy high (like over 700MHz) and it doesn't crash it should be safe.
Battery life will probably be shorter if you play games with an overclocked GPU though.
okay, thanks for the help
You'll also probably want a rather moderate overclock if you don't want your battery life to suck.
Clocks over 600MHz are very high and will probably suck lots of power. Try to find something in the range of 450-600MHz
Searz said:
You'll also probably want a rather moderate overclock if you don't want your battery life to suck.
Clocks over 600MHz are very high and will probably suck lots of power. Try to find something in the range of 450-600MHz
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i am currently using faux kernel, GPU is overclocked to 512MHz
So I've been following this section for months and just got my a2017u 2 weeks ago. I'm rooted with tenfars tool still locked on b20. I've noticed in the last few weeks a tapering off of new and useful info for this phone and would really like to see what and where everyone is with it? LSpeed? Kernel Auditor? Or any tweaks that have helped either performance or battery life!!! Looking for anything to make this already great phone better!!! TIA
I have been using EX Kernel manager to tweak the settings as kernel auditor was not working properly with the big.LITTLE arrangement. I have upped the readahead value and underclocked the cpu to 1036mhz on the little cores and 1401 mhz on the big cores. working still as snappy and getting +2h SOT. I'm a heavy gamer and Asphalt 8 still plays as fluid as before, even better tbh due to less heating.
If you don't like to underclock, you could try these:
http://forum.xda-developers.com/htc-10/development/pnp-tweak-custom-butterfly-ghostpepper-t3431307
+2h? That's really good! I know overclocking can/could/might damage the CPU. Does underclocking have any of the same risks? I'm rooted and unlocked atm. So no warrenty anyway
aPexalpha said:
+2h? That's really good! I know overclocking can/could/might damage the CPU. Does underclocking have any of the same risks? I'm rooted and unlocked atm. So no warrenty anyway
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Overclocking can't really harm anything. The excess heat might but it would take a long time and really high temps (you couldn't keep the device in your hands). The only thing you risk by overclocking is a system crash. Just reboot, lower the clock values and voilà ! So no, underclocking can't hurt anything. Overvolting however poses a real threat to the integrity of the components. It's quite the same thing as in computers (except for the heat, you don't always realize it's too hot in a computer).
That being said, is overclocking still even possible on smartphones nowadays ? Just for the fun of it because it's not needed in the least on the Axon 7 .
That's impressive results ! Not sure those hours are needed since the battery is doing well with the software power saver but still a good thing to know.
Still any extra sot is welcome. I'm not a gamer, don't really have any apps that truly need the full power of the sd820 so might give it a shot. Greenify does wonders for standby time.
Not sure if the built in 'intelligent country control' does anything tbh
I'm on my phone most of the day whether it be YouTube play music, texts,calls,etc.. I'm just hoping to find a balance between battery and my multitasking ADHD LOL
Nik2424 said:
I have been using EX Kernel manager to tweak the settings as kernel auditor was not working properly with the big.LITTLE arrangement. I have upped the readahead value and underclocked the cpu to 1036mhz on the little cores and 1401 mhz on the big cores. working still as snappy and getting +2h SOT. I'm a heavy gamer and Asphalt 8 still plays as fluid as before, even better tbh due to less heating.
If you don't like to underclock, you could try these:
http://forum.xda-developers.com/htc-10/development/pnp-tweak-custom-butterfly-ghostpepper-t3431307
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Mine keeps switching back to 'normal' modes with CPU full on. Any idea how to fix that?
aPexalpha said:
Mine keeps switching back to 'normal' modes with CPU full on. Any idea how to fix that?
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Yup, I had that problem too initially.
First, I made system changes persistent upon reboot by running this command in Terminal emulator(you can also use adb shell):
reboot disemmcwp
Secondly, you have to disable smart power in the quick toggles.
Once this is done, set your new max values, select the arrow next to it to make it applied on every boot and then reboot your device. It should work.
Note: Everytime you open the EX Kernel manager you will see the speeds jump to max for like 1 sec but if you actually check the cpu statistics you'll see that your settings are sticking and the max clock speed was just for everytime you open the app.
The smart power! I forgot that thing controls the CPU.
So that round arrow thing means apply on boot? I selected that, figured it meant something like that.
Cheers!
Hi there,
Is it possible to overclock the cpu and gpu?
If so how? Or which rom/kernel?
Running G model 4gb ram
Even if you can, it will chew the battery and heat up.
RobboW said:
Even if you can, it will chew the battery and heat up.
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Not a problem as I would only be using it sometimes not permanently
Kendal21 said:
Not a problem as I would only be using it sometimes not permanently
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in theory it is, we had a a kernel that OC'd the CPU way back then, but the SoCs on the Axons are probably low-binned - shutdowns and stuff like that are commonplace
But still, do you know what OC does to a phone? New phones are thermally constrained devices, starting from the snapdragon 800 series onwards. remember the sd805/810 disaster? Well...
If you run your phone at 100% load, it will run at max speed (1.56/2.15) for a very short time (say, 30 seconds), until the SoC reaches a specific temperature. After that it'll go down to a more manageable frequency, eventually going even further down or staying at 1.8 ghz, depending on your specific situation (the pink thermal blob might be bad).
That's why VR mode sets your cores at around 1.8 ghz, to keep them from going hot and lowering frequency even more. Sustained performance is better than burst performance on gaming.
Day to day usage is another matter, because more frequency won't mean thermal throttling when opening apps or unlocking the phone, beside the obvious battery usage
TL/DR: Be prepared to make your own kernel if you want to OC. It might not work