Undervolting/overvolting? - GT540 Optimus General

Does any ROM for our old GT540 support undervolting/overvolting?
Thanks!

noobovski said:
Does any ROM for our old GT540 support undervolting/overvolting?
Thanks!
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Over and under clocking?
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andyabc said:
Over and under clocking?
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Click to collapse
no -volting.
its something different and for saving some battery juice or extra power.
many other (newer) phones/kernels support it.

andreas__ said:
no -volting.
its something different and for saving some battery juice or extra power.
many other (newer) phones/kernels support it.
Click to expand...
Click to collapse
Oh lol, its just i never heard of such thing
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if you know how overclockers clock their pc-s , then you should know about volt-mods/overvolting (vdimm,vdroop and etc.)

hani93 said:
if you know how overclockers clock their pc-s , then you should know about volt-mods/overvolting (vdimm,vdroop and etc.)
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Click to collapse
Oh yeah.
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i think the only "undervolting" our phone can do is change the stock frecuency from 245 to 122 lower is unstable....up is 806 some people a little more or a little less...thast regarding the cpu frecuency in terms of Voltage i think is more than imposible due to inestability.

here is full overview of overvolting and so. : link
but shortly:
overvolting gives more voltage to hardware (cpu in this case) .
more voltage=more overclock , but also alot more heat.
undervolting decreases voltage of cpu, to save battery juice for longer time, but instability occurs @ same clock.
(need to lower cpu clock for more stability).
and also cpu is cooler.

Related

Overclocking official 2.1

Is there any chance of overclocking official 2.1 rom
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mohnim said:
Is there any chance of overclocking official 2.1 rom
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Click to collapse
Yeah, install Quarx Kernel, MMXTREM kernel etc.
How do I install the kernel
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mohnim said:
How do I install the kernel
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Click to expand...
Click to collapse
Flash the zip in recovery (for MMXTREM)
does anyone if it is safe to underclock??
About (122MHz ~ 245MHz)
Probably
It's stable on 122mhz on mine. But it's super slow and laggy. But battery saving
y
jhonnyx1000 said:
It's stable on 122mhz on mine. But it's super slow and laggy. But battery saving
Click to expand...
Click to collapse
So is it safe???
Or should I just put it to powersave mode??
I heard that it may decrease ur phones battery life. And from others that u need to put it at least to 245MHz so that the system can run!
Sent from my GT540 using Tapatalk
safe on mine
122mhz works on mine and is very consistent. It never crashed on that frequency. Don't know if it'll work on other phones.
Anyways thanks gonna underclock!!!
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I would also say two hundred better safe than sorry
Also battery on mine at eight hundred mega hertz is still eight or nine hours so really its only if you had no charger for longer than that that you would under clock
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Danzano said:
I would also say two hundred better safe than sorry
Also battery on mine at eight hundred mega hertz is still eight or nine hours so really its only if you had no charger for longer than that that you would under clock
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Click to collapse
my phones usually lasts about 2 and a half days!!
I've noticed that the battery level is very unstable. For example the LG Optimus 2x's battery level changes every 1% but on the LG-GT540 it changes every 3-10%
jhonnyx1000 said:
I've noticed that the battery level is very unstable. For example the LG Optimus 2x's battery level changes every 1% but on the LG-GT540 it changes every 3-10%
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Click to collapse
Yes I have noticed that too!!
We should try and fix it!!
That would be great!!
Goππa ®o©k & ®o//
This is a kernel issue. Charging table is not properly written.
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pebe94 said:
This is a kernel issue. Charging table is not properly written.
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so is it like impossible to fix??
androidboss7 said:
so is it like impossible to fix??
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Click to collapse
Possibly not (as in it won't be impossible to fix)

What is a safe level to over clock?

Hi all,
I am using a rooted n7.
I have over clocked my galaxy s2 to 1.5ghz before, but I am not sure what is a safe level to over clock the n7 to.
What is a is is for battery life and performance?
And which kernel do u guys recommend
?
Thanks in advance
Cheers
Corey
Sent from my GT-I9100 using xda premium
fishingfon said:
Hi all,
I am using a rooted n7.
I have over clocked my galaxy s2 to 1.5ghz before, but I am not sure what is a safe level to over clock the n7 to.
What is a is is for battery life and performance?
And which kernel do u guys recommend
?
Thanks in advance
Cheers
Corey
Sent from my GT-I9100 using xda premium
Click to expand...
Click to collapse
I run trinity kernel on my Gnex and N7 and on my N7 I keep it stock speeds because I've seen no reason to realistically OC it. Most of the improvements I see are from the kernel software changes over stock. You can OC to 1.6 safely but I'm not sure of the power usage difference but I'm pretty sure the loss in power isn't worth the gain from OCing.
Sent from my Galaxy Nexus using xda app-developers app
I have mine at 1.6 just for the hell of it, I get a good 4 or 5 hours of continuous usage out of it.
brando56894 said:
I have mine at 1.6 just for the hell of it, I get a good 4 or 5 hours of continuous usage out of it.
Click to expand...
Click to collapse
For the benefit of the community, can you tell us any major changes at 1.6 GHz?
Is there anything noticeably faster?
Hi, I have a related question but can't post since I'm new.
Using the glazed rom which i like but it apparently has gpu overclock. I would like to know how to adjust that back to stock setting or at least see what it currently is. I found the CPU section but there is no gpu I can see.
Is there a tool I can use?
Sorry for the hijack...at least its sort of on topic
IMO over clocking is a gimmick, its the kernel build
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Harry GT-S5830 said:
IMO over clocking is a gimmick, its the kernel build
Sent from my Nexus 7 using xda app-developers app
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My thoughts exactly. I play some light games and web browse on my Nexus 7.
For those purposes, my Nexus 7 is already extremely fast, so I don't think I would be able to notice if it was over clocked.
But I guess it depends, maybe there's a big difference when running GPU heavy games.
I have OC mine upto 1640 MHz for bench marking alone for half and hour or probably more and it went fine although the tablet was getting warmer more than usual.
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Hi,
I decided to flash trinity kernel.
I am currently OC to 1.5yghz, is that a safe level to keep it at full time? Or can that burn the cpu out?
Thanks again
Cheers
Corey
Edit,
I over clocked my galaxy s2 ages ago, and I noticed a huge difference in performance.
So that is why I want to over clock my n7 too lol
Corey
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there is no such thing as a safe overclock. overclocking, by nature, carries some risk. that said, i havent seen anyone brick their device from overclocking.
fishingfon said:
Hi all,
I am using a rooted n7.
I have over clocked my galaxy s2 to 1.5ghz before, but I am not sure what is a safe level to over clock the n7 to.
What is a is is for battery life and performance?
And which kernel do u guys recommend
?
Thanks in advance
Cheers
Corey
Sent from my GT-I9100 using xda premium
Click to expand...
Click to collapse
Just wondering
Why do you feel the need to OC?
I go to 1.6 but use the Trinity App to go back to stock when OC not needed
Sent from my GT-I9300 using xda app-developers app
I have not over clocked the Nexus 7 yet but one way to test your devices max is to use setcpu. Make sure you do not have "set on boot" option selected. Then step up your cpu. If your cpu can not handle the over clock it will force restart. If you do not have the set at boot selected it will revert back to the last good state on restart.
Each device is different on what it can handle for over clock.
Sent from my Nexus 7 using xda app-developers app
fishingfon said:
Hi,
I decided to flash trinity kernel.
I am currently OC to 1.5yghz, is that a safe level to keep it at full time? Or can that burn the cpu out?
Click to expand...
Click to collapse
To be honest I doubt you'll notice much increase from oc the CPU since the CPU already is so powerful nothing pushes it to max really.
Only thing worth overclocking is GPU really. And at that, your not going to notice a difference unless your playing some intense games.

Battery

Hey fellas.
I just want to know which is the best settings for governer and i/o scheduler so that i get more battery life.
Im using Ussr v5 and i' ve set max frequency 624MHz and min 312MHz.
use gov:conservative i/o sched:deadline
this wud save ur batteryy..
Droidwall is a much better app than juice defender, it saves a lot more juice than juice defender does and that too without any RAM and battery consumption.
Best Power Saving Governors
Best for Screen ON: Ondemand
Best Screen ON + performance: SmartassV2
- Good choice if you need a performance governor with some power saving
What about when my Screen is OFF?
Best Governor for Screen OFF
Without Deep Idle: Same as Screen ON > Ondemand
With Deep Idle: Any governor
Click to expand...
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Ref : http://forum.xda-developers.com/showthread.php?t=1507204
U need root access for droid wall.. And juice defender is fine for un rooted devices.. Was talking about an unrooted phoneView attachment 1320249
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The OPs phone was rooted..btw juice defender might save some battery but it takes a lot more since it runs background all the time, monitors every system function (wifi disabling per app settings) which needs more juice than normal, it depends whether it saves battery or not, for an aggressive user who shifts to wifi, 2g very frequently, it definitely saves, but for those who use 2g/wifi rarely or not actively, it wont matter much on the battery
How to setup droidwall after downloading to save battry....ihave downloaded it but cant undestand waht to do
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very useful
When i enebled androidwall it is giving this error message...
Exit code:11
Ipatables : no chain/target/match by that name
Ipatables : no chain/target/match by that name
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yashuperia said:
When i enebled androidwall it is giving this error message...
Exit code:11
Ipatables : no chain/target/match by that name
Ipatables : no chain/target/match by that name
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Click to collapse
Its because galaxy y stock kernel does not support droidwall.
Use a custom kernel which supports droidwall.
Does merruk kernel supports it?
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yashuperia said:
Does merruk kernel supports it?
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No, it doesnt, its really outdated, use savies kernel rev 73 or kuros kernel..
yashuperia said:
Does merruk kernel supports it?
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Click to collapse
my kernel has it.
yashuperia said:
Does merruk kernel supports it?
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Click to collapse
yup, it supports. U can check its features.
Animus03 said:
yup, it supports. U can check its features.
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Click to collapse
Nope, check once again, it still needs to be fixed, no complete droid wall support
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hitme987 said:
Nope, check once again, it still needs to be fixed, no complete droid wall support
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Hmm.. I don't use merruk kernel, so m not sure. I just checked its features which says "NETFILTER Compatibility with DROIDWAL." so thought it supports.
Though it also have a to do list listing "DROIDWALL App Fully Working"
Animus03 said:
Hmm.. I don't use merruk kernel, so m not sure. I just checked its features which says "NETFILTER Compatibility with DROIDWAL." so thought it supports.
Though it also have a to do list listing "DROIDWALL App Fully Working"
Click to expand...
Click to collapse
Yeah, thats what I meant, it need to be fixed
btween guys wats d best governor n i/o for performance n battery saving
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harigavara said:
btween guys wats d best governor n i/o for performance n battery saving
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Click to collapse
Smartassv2 and vr
from my experience governor give very small impact on battery live. if your phone mostly in sleep, like mine, i find best governor is performance. performance does not save power but it's maximize suspend (aka deep sleep). faster cpu working, faster it's job done, faster it's go to sleep. for moderate usage like browsing, any governor that design to work with android phone will work. the different is not too much. for heavy work, none governor can save your power.
for i/o scheduler, it does not have any impact to your battery.

[Q] Lowest power consumption state

I have read in some forums about the "sweet spot" of cpu frequency (The cpu frequency at which power consumption by the phone is the least possible).
I want to know what's the "sweet spot" of MB526.
Anyone?
300 mHz, because the vsel is lowest at that frequency? Not sure what exactly is meant by sweet spot
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reply
thekguy said:
300 mHz, because the vsel is lowest at that frequency? Not sure what exactly is meant by sweet spot
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Sweet spot is the cpu frequency at which power consumption is the lowest.... Any frequency lower than that will actually increase power consumption...Apparently, for the Galaxy SL, it is 400Mhz....
hotdog125 said:
Sweet spot is the cpu frequency at which power consumption is the lowest.... Any frequency lower than that will actually increase power consumption...Apparently, for the Galaxy SL, it is 400Mhz....
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I think we need experiment for this. I am trying 350 mhz now
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Doesn't power consumed=>vsel logically? So 300mHz
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reply
thekguy said:
Doesn't power consumed=>vsel logically? So 300mHz
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Apparently not. Too low frequencies can make the phone unuseably slow + increase power consumption:cyclops:
I can understand the phone being slower, but why consume more battery at lowest vsel
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thekguy said:
I can understand the phone being slower, but why consume more battery at lowest vsel
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No answer for that. But tests have shown that it's true.
How have you found that out? I have personally had a positive experience with lower vsels
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thekguy said:
How have you found that out? I have personally had a positive experience with lower vsels
Sent from my MB526 using Tapatalk 2
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I think 300Mhz is the sweet spot.
hotdog125 said:
I think 300Mhz is the sweet spot.
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Click to collapse
Exactly. As vsel decreases, power consumption decreases and because 300 mHz has lowest vsel, it is the least power consuming state
hotdog125 said:
I think 300Mhz is the sweet spot.
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Click to collapse
OK, well...
I also don't understand this relation between low frequency and higher power consumption, but there is no real difference in battery usage between 300 and 600mHz for me at least. Just set Max Freq to 300 or 600 and use ondemand/conservative governor.

[DISCUSSION]Governors and Schelduers

Okay,so i made this thread so that development thread become less spammed with your questions.
Please,share your opinions here and ask questions,someone will answer you,and share your screenshots of battery life.
I personally use PegasusQ+VR,it gives great performance and good battery life.
My second choice would be Abyssplug+SIO,especcialy for the hotplug feature.
(In case you dont know what Hotplug is,its the feature that turns off the second core when your phone is not in use.)
I cant decide wich is better,tommorow ill test Hotplug+sio,and ill post screenshots of both tommorow.
Please,ask any questions here,dont spam Benz's threads.
Thank you
DeHuMaNiZeD said:
Okay,so i made this thread so that development thread become less spammed with your questions.
Please,share your opinions here and ask questions,someone will answer you,and share your screenshots of battery life.
I personally use PegasusQ+VR,it gives great performance and good battery life.
My second choice would be Abyssplug+SIO,especcialy for the hotplug feature.
(In case you dont know what Hotplug is,its the feature that turns off the second core when your phone is not in use.)
I cant decide wich is better,tommorow ill test Hotplug+sio,and ill post screenshots of both tommorow.
Please,ask any questions here,dont spam Benz's threads.
Thank you
Click to expand...
Click to collapse
OnDemand + CFQ (Like in stock ROM) the only way that don´t dry my battery.
With that combination my phone is slow like hell..have you tried those that i wrote.
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DeHuMaNiZeD said:
With that combination my phone is slow like hell..have you tried those that i wrote.
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Click to collapse
Yes, but my batteryd doesn't like them very much
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thats odd
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Hi, can you tell me the best combination of governors to use. I'm using latest cm
10.1 maclaw build with hotplug and noop, but i think CPU its not sleeping cause i loose about 5% battery in 2hours withought using my fone at all. Thanks
Sent from my GT-I8190 using xda app-developers app ?
Hotplug governor is indeed a joke, at least in Maclaw's CM (not surprised). There is no way to set it up for low battery drain /and/ reasonably smooth functionality. Right now I am using Ondemand + CFQ while playing with the powersave bias and up threshold parameters. The only thing I wish I had from Maclaw/Benz's kernel is the vr/sio schedulers.
You have VR and sio schelduer in Benz's kernel,and Abyssplug governor with real hotpulg feature,when you dont use the phone cpu shuts down one core and the remaining core runs on 200Mhz and 1% usage.
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I would gladly use that kernel if it didn't have the dirty flickering fix. And if it didn't require CM10.1 reboot edition.
Also, when I was on CM i ran a logcat with hotplug activated. The second core would often reactivate even if the phone wasn't doing anything, with the screen turned off, then soon turn off and after a few seconds repeat the process. Maybe this phone really needs the core.
What flicketing fix? I got no flickering on the latest Maclaws cm and benzs kernel..and it shuts down the core,you can see with system monitor when your screen is on..dunno for screen off,but i get like 1% drained for a hour with screen off
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The 63 fps refresh rate, which "fixes" the UI flickering.
And yes, I saw the second core turning off myself. However, I am not sure if it keeps being off enough time.
Well in maclaws rom i dont have flickering,but in olivers i had. I dont know,i got decent battery life. Not good as stock,but its ok
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Which is more battery friendly? Abyssplug or Pegasusq?
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Nemo1984 said:
Which is more battery friendly? Abyssplug or Pegasusq?
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Click to expand...
Click to collapse
Read this. It will help you to decide which is the best for your needs:good::good:
P.S: BTW, @DeHuMaNiZeD, if you want, add this link to your OP, so people can read it & learn.
Nemo1984 said:
Which is more battery friendly? Abyssplug or Pegasusq?
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Click to expand...
Click to collapse
Pegasusq said to have hotplugging but doesnt seem to work with screen on
Based on what I read, my best guess would be Abyssplug. I'll run some tests and will post my results.
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AssToast said:
Pegasusq said to have hotplugging but doesnt seem to work with screen on
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Click to collapse
Yes, it only turn off one core when the screen off. I'm testing pegasusq + sio
For the next days, I'll be on abyssplug + sio.
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metalboy94 said:
The 63 fps refresh rate, which "fixes" the UI flickering.
And yes, I saw the second core turning off myself. However, I am not sure if it keeps being off enough time.
Click to expand...
Click to collapse
And what exactly is so wrong with 63 fps refresh rate? Will your screen fry because of it? No it won't because it can't. Will your phone explode while being used? No it won't because it can't. What's the issue here then? Tell me.
Benzonat0r said:
And what exactly is so wrong with 63 fps refresh rate? Will your screen fry because of it? No it won't because it can't. Will your phone explode while being used? No it won't because it can't. What's the issue here then? Tell me.
Click to expand...
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Have you considered the battery drain implications? The battery is weak enough as it is, a higher than normal refresh rate only wastes more GPU power thus more battery.

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