Related
I have tried just about every kernel i have come across. The 2 with the best performance i have noticed are:
1. http://www.ziggy471.com/ "scroll down"........ quadrant 3000 @1.8
2. http://forum.xda-developers.com/showthread.php?t=1022460 quadrant 2750 @ 1.8
My question is that when i have these kernels on ondemand with a min and max at 1800. i can run a stress test and confirm its stable. however when i start to scale and bring a minimum into the equation. Is when i start to expierience freezes. Is this possibly a scaling issue? set cpu issue?
Thanks
If you are basing performance upon quadrant scores and speed, you are doing it all wrong. And there is no need to run it at that speed, you don't notice a difference from 1.4-1.8. Don't run it so fast and you probably won't get the lockups anymore. Just because you can run a stress test doesn't mean that it won't lock up during everyday use.
Please post in the correct section next time.
Sent from my ADR6400L using XDA App
Paulb787 said:
I have tried just about every kernel i have come across. The 2 with the best performance i have noticed are:
1. http://www.ziggy471.com/ "scroll down"........ quadrant 3000 @1.8
2. http://forum.xda-developers.com/showthread.php?t=1022460 quadrant 2750 @ 1.8
My question is that when i have these kernels on ondemand with a min and max at 1800. i can run a stress test and confirm its stable. however when i start to scale and bring a minimum into the equation. Is when i start to expierience freezes. Is this possibly a scaling issue? set cpu issue?
Thanks
Click to expand...
Click to collapse
I am also interested in kernel dev responses concerning the min scaling. I have tried quite a few kernels as well and have noticed that when scaling to a min they become more fragile over time. Is this due to dropping/adjusting the voltages versus a set voltage at a set speed? How is that handled by the cache?
I guess the overall stability of the kernel when scaling is what I am wondering about as well. I doubt it is the handling by setpcu. I wish I knew more so I could expound upon the original question.
What factors are we looking at for stability when scaling multiple voltages and clock speeds?
As an observation of mine....
If I do NOT install setCPU and modify the settings maually, I do not have any lockups. I do recall reading that setCPU can cause some issues with certain kernels. Could be that using setCPU to modify the settings causes some misconfiguration that leads to the lockups.
Sent from my ADR6400L using XDA Premium App
I was looking into manually setting the freq. I do believe that setcpu is corky and causing some problems. Is there a page that you can direct me 2 for more info?
have you tried using one of Adrynalyne's kernels?
http://forum.xda-developers.com/showthread.php?t=1024338
try installing the latest one and use the 'smartass' governor. that particular governor should alleviate your need for using setcpu other than to overclock it.
Samsung Fascinate CDMA
Rooted MIUI 1.9.16
Did a brief search here looking to understand how to operate overclocking kernals, but find it/me relatively limited.
I have installed and ran Glitch v11 and v12, played around with HL to LL, and made adjustments to undervoltage utilizing Pimp My CPU and Voltage Control. I have also ran Tweak (though not really a kernal).
My question is this,
am I overclocking when I reduce voltage on Mhz's above 1,000?
If not, could someone point me to, or explain how to achieve overclocking on our phones, and
which kernel and governor do you prefer for overclocking?
As an ammended note, I've installed Tegrak Overclock, but am still looking for a user guide...
Thank you for your time.
If you're the running the glitch kernel...use voltage control, not tegrak overclock...over clocking is when you turn the CPU speed above its normal speed..anything over 1GHz.
under volting is when you turn down the voltage frequency to achieve better battery life...
Any one clock speed may perform more or less stable with different under volting unfortunately all of our phones will vary in performance so one setting that works for one may not be the best for another so experimentation is really the best option...this applies for schedulers and governors as well.
I personally overclock as high as I can until it freezes or crashes..then I go 1 setting down...I then try undervolting different steps observing the stability of my phone...when I find what I like,I run it for a few days, then if its still nice and stable I will apply on boot.
The different leakage values are affected by the hardware quality of the chips in our phones which also vary..I start with high and see how high I can overclock..note the setting, then try medium..see how high I can overclock and so on...just as a reference..high leakage creates the most heat and is the least efficient, but works for most phones, while low leakage is the most efficient and generates the least heat and will work with not as many phones
Sent from my SCH-I500 using XDA App
efan450 said:
If you're the running the glitch kernel...use voltage control, not tegrak overclock...over clocking is when you turn the CPU speed above its normal speed..anything over 1GHz.
under volting is when you turn down the voltage frequency to achieve better battery life...
Any one clock speed may perform more or less stable with different under volting unfortunately all of our phones will vary in performance so one setting that works for one may not be the best for another so experimentation is really the best option...this applies for schedulers and governors as well.
I personally overclock as high as I can until it freezes or crashes..then I go 1 setting down...I then try undervolting different steps observing the stability of my phone...when I find what I like,I run it for a few days, then if its still nice and stable I will apply on boot.
The different leakage values are affected by the hardware quality of the chips in our phones which also vary..I start with high and see how high I can overclock..note the setting, then try medium..see how high I can overclock and so on...just as a reference..high leakage creates the most heat and is the least efficient, but works for most phones, while low leakage is the most efficient and generates the least heat and will work with not as many phones
Sent from my SCH-I500 using XDA App
Click to expand...
Click to collapse
Efan450,
Thanks.
How do you over-clock using Glitch and Voltage Control? I see that Voltage Control goes up to 1,300Mhz, but it's at 0 above 1,000Mhz and can be dropped down to -200mV. Is overclocking just the process of decreasing that voltage on Mhz's above 1,000Mhz's
FJRSport said:
Efan450,
Thanks.
How do you over-clock using Glitch and Voltage Control? I see that Voltage Control goes up to 1,300Mhz, but it's at 0 above 1,000Mhz and can be dropped down to -200mV. Is overclocking just the process of decreasing that voltage on Mhz's above 1,000Mhz's
Click to expand...
Click to collapse
come on man.. Clock speed (mhz) and undervolting are 2 completely different things.. Forget the voltage.. No changing the voltage is NOT overclocking.. You overclock by changing your maximum clock above 1000mhz which is stock for this phone.. Try long pressing 1200mhz and selecting set as max.. Now your overclocked to 1200mhz..
Sent from the fascinate that holds the record benchmark on antutu
No decreasing the voltage is simply undervolting whether it's over 1000 or under. The idea behind undervolting is increasing battery life, but you can't necessarily go and set each level to the maximum undervolt (200) you half to see what works. Increasing the processor speed is overclocking, stock speed is 1000 so anything over that is over clocked. As far as how far as how far you can over clock depends mostly on 2 things, 1. the kernel your using, ( for example if it shows 1300 in the list that means thats all that specific kernel supports) 2. It varys greatly between phones. For example with glitch you can overclock to 1700 but very few phones can run that high for longer than a few minutes!
Hope that helps.
Sent from my SCH-I500 using xda premium
Yes.. And the fact you say your running glitch and your max oc is only 1300 my guess is you broke your kernel with tegrak overclocks module.. Delete tegrak and stop downloading overclock apps. or any other root app unless you know fully the consequences first.. If after deleting tegrak, and rebooting, if your voltage control don't show a maximum clock of 1700 mhz, then you will need to reflash your glitch kernel
Sent from the fascinate that holds the record benchmark on antutu
Neh4pres,
Yeah, I kind of feel like a heel. For some reason, I had a brain fart when looking in the 'General' section of Voltage Control. I see now how to overclock.
Regarding ost #6:
When I flashed MIUI 1.9.16, I did not install any kernel; so it was kind of a half truth in that while running 1.9.9 I did have Glitch installd. Nevertheless, I still have Voltage Control installed.
mkropf,
I see that now, and thought as such earlier, but needed some clarification.
Having so many issues with Glitch and 1.9.9, I'm hesitant to install Glitch, but interested to see if it runs better on the newer MIUI...
Thank you two for answering my newbie questions.
FJRSport said:
Neh4pres,
Yeah, I kind of feel like a heel. For some reason, I had a brain fart when looking in the 'General' section of Voltage Control. I see now how to overclock.
Regarding ost #6:
When I flashed MIUI 1.9.16, I did not install any kernel; so it was kind of a half truth in that while running 1.9.9 I did have Glitch installd. Nevertheless, I still have Voltage Control installed.
mkropf,
I see that now, and thought as such earlier, but needed some clarification.
Having so many issues with Glitch and 1.9.9, I'm hesitant to install Glitch, but interested to see if it runs better on the newer MIUI...
Thank you two for answering my newbie questions.
Click to expand...
Click to collapse
There are no issues with glitch.. It is what I run.. Very smooth.. Just have to give your phone time to adjust and build cache
Sent from the fascinate that holds the record benchmark on antutu
Landscape
Re-installed Glitch v12 ML last night and have it overclocked @ 1,200 with no under-voltage...yet. Want to see any adverse effects.
I started at 1,300 and it locked up then rebooted within 5 minutes.
A concern I have is that now my phone will not Auto Rotate to Landscape even though I have Auto-Rotate 'on' in Settings.
I've scoured Sixstrings Glitch thread to no avail. Though it's not needed anymore, I also flashed the cleaning script just to see if it would make a difference.
Is there a work around or fix for this?
Make sure you're on the latest 9/15 version of the kernel. Anything before that will kill all of your phone's sensors.
http://forum.xda-developers.com/showthread.php?t=1252871
sageDieu said:
Make sure you're on the latest 9/15 version of the kernel. Anything before that will kill all of your phone's sensors.
http://forum.xda-developers.com/showthread.php?t=1252871
Click to expand...
Click to collapse
That was it. I had re-installed the older Glitch v12 that was already on my PC. Deleted them and downloaded the newer Glitch kernels to experiment with.
Thanks!
FJRSport said:
Re-installed Glitch v12 ML last night and have it overclocked @ 1,200 with no under-voltage...yet. Want to see any adverse effects.
I started at 1,300 and it locked up then rebooted within 5 minutes.
A concern I have is that now my phone will not Auto Rotate to Landscape even though I have Auto-Rotate 'on' in Settings.
I've scoured Sixstrings Glitch thread to no avail. Though it's not needed anymore, I also flashed the cleaning script just to see if it would make a difference.
Is there a work around or fix for this?
Click to expand...
Click to collapse
under volting helps stability.. I use -50 for everything above 1ghz.. Your phone may vary
Sent from the fascinate that holds the record benchmark on antutu
OC & UV settings
neh4pres said:
under volting helps stability.. I use -50 for everything above 1ghz.. Your phone may vary
Sent from the fascinate that holds the record benchmark on antutu
Click to expand...
Click to collapse
Yeah, locking and rebooting was while using the older version of Glitch v12. With the 9/15 dated Glitch I'm at 1300 now with the following settings:
Deadline / ondemand
200 - 1300
1300 -25
1200 -25
1000 -50
800 -50
400 -75
200 -75
1.2GHz is the best I say if you want good battery with a higher frequency. 1.4GHz is the best for anyone who uses their phone alot. Samsung did add 1.2GHz overclock in their source.
Sent from my SCH-I500 using XDA App
Back to running MIUI without Glitch.
Things that make you go, Hmmm?
For some reason, every time I accessed the keyboard for Google+, it hung, then froze, and 3 of the four times rebooted. The fourth time I needed to remove the battery to reboot. So I re-flashed MIUI 1.9.16 (effectively removing Glitch) and have 0 problems.
Bummer, I like Glitch too.
I'm in the same boat, however they redone the latest glitch merge and posted it last night so I'm thinking we'll be back in good times
Sent from the most custom, custom rom Miui 1.9.16 and currently the best kernel Jt
mkropf said:
I'm in the same boat, however they redone the latest glitch merge and posted it last night so I'm thinking we'll be back in good times
Sent from the most custom, custom rom Miui 1.9.16 and currently the best kernel Jt
Click to expand...
Click to collapse
are you using JT's 9/12 kernel?
if so...did you overclock it?
i'm on jt's 9/12 with miui 1.9.16 and wondering if I can / should overclock and undervolt it. I'm just trying to maximize battery life at this point.
Try the new glitch posted last night, it is fantastic.
Sent from my MIUI SCH-i500
sageDieu said:
Try the new glitch posted last night, it is fantastic.
Sent from my MIUI SCH-i500
Click to expand...
Click to collapse
what voltages are you running?
also for anyone..
is there any way to directly compare two kernels? like a test or something?
I can't decide between JT's 9/12 and the new glitch..
worshipNtribute said:
what voltages are you running?
also for anyone..
is there any way to directly compare two kernels? like a test or something?
I can't decide between JT's 9/12 and the new glitch..
Click to expand...
Click to collapse
You wouldn't want to use my voltages, I put everything way lower than anybody else does or recommends and am just lucky that it is stable for me but it causes the sleep of death for anyone else.
For comparison, just run JT's kernel for a bit and then flash glitch and try it... once you play with OC/UV and voodoo color you won't be able to go back. (you'll be able to but you'd have to be insane.)
Undervolting and profiles.
I have tried a crap ton of different undervolting setting, but none work
Also the profiles in set cpu don't seem to work for me. I have a few of them set and it always sits on the top one I need some guidence with both please!
Another thing my xda premium app isn't pushing my notafications yes its set
Sent from my MB860 using xda premium
Undervolting is a delicate process. It takes time to find the max undervolt that is stable. With that being said, try undervolting everything by the lowest amount which is -25mv. Check to see if that is stable. If so proceed to go further. Remember lower freq will typically undervolt farther than higher frequencies.
As far as profiles go your probably not using the priority values right. The higher priority is what determines which profile setcpu uses. So for instance if you want a safeguard against overheating, you could set the profile for when the cpu goes above 55C to throttle the processor way down. If you set this profile to 100(max) it will overide all other profiles at 98, 99, 75, 50...etc. Also this may be obvious to some but be sure to tick(enable) the profiles button. If thats not ticked then it doesnt matter how many profiles you have set up. It simply wont use them.
jack_slapped said:
Undervolting is a delicate process. It takes time to find the max undervolt that is stable. With that being said, try undervolting everything by the lowest amount which is -25mv. Check to see if that is stable. If so proceed to go further. Remember lower freq will typically undervolt farther than higher frequencies.
As far as profiles go your probably not using the priority values right. The higher priority is what determines which profile setcpu uses. So for instance if you want a safeguard against overheating, you could set the profile for when the cpu goes above 55C to throttle the processor way down. If you set this profile to 100(max) it will overide all other profiles at 98, 99, 75, 50...etc. Also this may be obvious to some but be sure to tick(enable) the profiles button. If thats not ticked then it doesnt matter how many profiles you have set up. It simply wont use them.
Click to expand...
Click to collapse
When I was on alien rom, I tried 25 on all and it restarted after like a minute. What worked for me was 25 25,50,50,75,75,100 fromm bottom to top. I tried it with cm7 and total no go lol
Lemme tryi 25 on all and see what I get and I didn't know that. They all werent working, so I set them all to 100 lmao, I understand that now
Sent from my MB860 using xda premium
Aparently its been running 125,125,50,75,75,75,75bottom to top cm7 with 1.3 kernel.
It did restart a couple min ago randomly. Will keep posted
Sent from my MB860 using xda premium
Glad your getting some results. If it restarts even once it means at least one of your undervolted freq isn't stable. With your settings I would wager its in the uper freq considering your undervolt in the lower freq isn't too extreme. You might try decreasing the undervolt for your upper freq to -50 -50 -50 starting at the top. Might help to stabilize bc higher freq just require more voltage. If that proves to be stable continue trying to reduce the lower freq as much as possible. Mainly bc if you set your profiles right(screen off is the most important really) your phone will spend the majority of its time on the 200mhz freq. Thus the more undervolt on that freq should theoretically give the most benefit from undervolting. This is just all from personal experience. I'm no guru. Just spent way too much time adjusting voltages on phones . And of course having the upper freq undervolted as much as possible cant hurt either.
jack_slapped said:
Glad your getting some results. If it restarts even once it means at least one of your undervolted freq isn't stable. With your settings I would wager its in the uper freq considering your undervolt in the lower freq isn't too extreme. You might try decreasing the undervolt for your upper freq to -50 -50 -50 starting at the top. Might help to stabilize bc higher freq just require more voltage. If that proves to be stable continue trying to reduce the lower freq as much as possible. Mainly bc if you set your profiles right(screen off is the most important really) your phone will spend the majority of its time on the 200mhz freq. Thus the more undervolt on that freq should theoretically give the most benefit from undervolting. This is just all from personal experience. I'm no guru. Just spent way too much time adjusting voltages on phones . And of course having the upper freq undervolted as much as possible cant hurt either.
Click to expand...
Click to collapse
25,50,50,50,50,75,75
Still getting a reboot:'(
Only good thing about the reboot is it turns on instantly
PROFILES CONFIRMED WORKING trying to indwrvolt this thing
I think I'm gonna order another battery too bc this one isn't getting the 16 hours it was, I cant say much bc I'm screwing with the settings hardcore xD I will show.all settings in a sec
Sent from my MB860 using xda premium
Sent from my MB860 using xda premium
Blahhh
Put blah there so it would post lol. Also going to download a stress test or quadrent thing to test the stress and find maximum uv
Sent from my MB860 using xda premium
Undervolting COMPLETE=D
QUAD SCORE! OCED 1.3 CM7
Right now I'm thinking my battery life is going to be amazig and if I turned the data off when not using it... omg I would last like 2 straight days prolly=D
So pumped to test everything morrow!!
Side note:800mhz or above wont go past 75 >:/
Had really important question to ask you but forgot
Also tried putting 215 to 275 that was a no go lol. My question was is there a battery manager and info like the stock one for cm7?!!!
Sent from my MB860 using xda premium
Smittyzz said:
Undervolting COMPLETE=D
QUAD SCORE! OCED 1.3 CM7
Right now I'm thinking my battery life is going to be amazig and if I turned the data off when not using it... omg I would last like 2 straight days prolly=D
So pumped to test everything morrow!!
Side note:800mhz or above wont go past 75 >:/
Had really important question to ask you but forgot
Also tried putting 215 to 275 that was a no go lol. My question was is there a battery manager and info like the stock one for cm7?!!!
Sent from my MB860 using xda premium
Click to expand...
Click to collapse
well my battery was draining mad quick so I am not overclocking It anymore unless I want to show off or play games lol, lost 20% in one hour. Now its stable and undervolted
Sent from my MB860 using xda premium
First off, regarding SetCpu and over / undercloking, dev has said it'll only underclock/overclock ONE core at a time. It's a bug and he's working on it from what I understand. If both cores are needed to be in use at the same time, no over / underclocking will be applied. Secondly, profiles work as they should in SetCpu, so that's a problem on your end. Third, the undervolting can't be more than 100mv differnce between jumps. See screen shot.
http://www.multiupload.com/YUK0KPXZLJ
Phalanx7621 said:
First off, regarding SetCpu and over / undercloking, dev has said it'll only underclock/overclock ONE core at a time. It's a bug and he's working on it from what I understand. If both cores are needed to be in use at the same time, no over / underclocking will be applied. Secondly, profiles work as they should in SetCpu, so that's a problem on your end. Third, the undervolting can't be more than 100mv differnce between jumps. See screen shot.
http://www.multiupload.com/YUK0KPXZLJ
Click to expand...
Click to collapse
I understand the 100 thing and I got the undervolting and profiles done. I hope he gets both cores supported soon and thank you dmfor the reply
Sent from my MB860 using xda premium
Yea Im skeptical about not setcpu not having support for dual cores... Did some searching on the net and couldnt find anything to support that. As far as not the tegra 2 not being able to do over 100mv jumps. That's not true. My lowest frequency is 600mv (-150) and my next frequency is at 750mv. That's a 150mv difference right there... And I'm completely stable. Its entirely dependent on your processor. They are all different and respond differently to undervolting. You just have to find what works for you. Generally though the lesser the jumps in voltage will give you more stability.
a good kernal helps too im useing faux123 v2.0 0C1.3 its undervolts quite well
us/alienv4UL/OC1.3{webtop2sd{fixed}
Ever since I got my hands on MIUI and the Glitch ML kernel, I've been amazed at the undervolt results I've been able to achieve.
I assume I'm not the only one messing around with their voltage settings, nor am I the only one doing so on the Glitch kernel.
Question is, how low can you go? My settings are in my signature, but how far have the rest of you Glitch folk been able to go using the ML or LL kernels? Post your results below!
For myself, I'm currently testing out the low end of the spectrum, seeing how low I can get the 100mhz and 200mhz range and still be stable. Even using 200/100 as my Screen Off profile. I never get sleep of death with Glitch ML.
Either no one reads the General forums, or few people care much for battery savings. Oh well.
It's not that, the lower the volts, the slower the phone. I'm undervolt; games lag
Sent from my GT-I9000 using Tapatalk
Why would undervolting lag the phone? I'm undervolting, not underclocking. Games I play are as snappy as they've ever been.
It depends on phone i cant go under 25 my other vibrant could go -200 on 100mhz
Sent from my SGH-T959 using XDA App
I'm running stock, unlocked 198_7 with jokers 1.4Ghz kernel with various tweaks and what not. I'm also using the Myrt Undervolt app as well...my question is how low should I undervolt it? What are safe and suggested settings running my setup and in general? And does undervolting only save battery life or are there other benefits?
Sent from my MoPho
I would also like to know the answer to this question i only lowered mine a little bit havent tried going any lower but i am on 1.3 oc with jokers rom
Hello fellow mopho owner!
Undervolting is quite trivial! Each phone is different. There is no magic number for which you can UV or OC to and not have stability issues without proper testing.
A good way to start would be to pick a frequency, UV it in increments of -25, then proceed to run stability tests. If you encounter no issues, then decrease the voltage by -25 again and repeat the stability tests. You can do this until you encounter issues. If all is stable with this frequency, then proceed to UV another one. And repeat the same stability tests.
I recommend not to UV any higher than -50. You're just begging for a system failure. -50 should easily yield a noticably increase in battery life.
The benefit of UV only yields extended battery life at the cost of some said performance in various ways.
With having said that. Next time you have a question about an specific app, post in the Q&A section of the forums.
If you would like to share an app or theme, post it here. In the "Theme/App" section of the forum.
-cheers
Sent from my MB855 using XDA App
Custodian said:
Hello fellow mopho owner!
Undervolting is quite trivial! Each phone is different. There is no magic number for which you can UV or OC to and not have stability issues without proper testing.
A good way to start would be to pick a frequency, UV it in increments of -25, then proceed to run stability tests. If you encounter no issues, then decrease the voltage by -25 again and repeat the stability tests. You can do this until you encounter issues. If all is stable with this frequency, then proceed to UV another one. And repeat the same stability tests.
I recommend not to UV any higher than -50. You're just begging for a system failure. -50 should easily yield a noticably increase in battery life.
The benefit of UV only yields extended battery life at the cost of some said performance in various ways.
With having said that. Next time you have a question about an specific app, post in the Q&A section of the forums.
If you would like to share an app or theme, post it here. In the "Theme/App" section of the forum.
-cheers
Sent from my MB855 using XDA App
Click to expand...
Click to collapse
This is the only forum it would let me post in...the new member restrictions are frustrating.
Lol. I felt the same way. All good
BigSketchySeaBeast said:
This is the only forum it would let me post in...the new member restrictions are frustrating.
Click to expand...
Click to collapse
Sent from my MB855 using XDA App
The tegra is picky and only likes booting at certain voltages. So many of the clocks could be uv'ed by up to 100. Loki manged 175 somehow... test till see causes issues but be thorough. Oh and my next kernels will require new values as im changing uv code to be more compatible with uv apps.
Custodian said:
Hello fellow mopho owner!
Undervolting is quite trivial! Each phone is different. There is no magic number for which you can UV or OC to and not have stability issues without proper testing.
A good way to start would be to pick a frequency, UV it in increments of -25, then proceed to run stability tests. If you encounter no issues, then decrease the voltage by -25 again and repeat the stability tests. You can do this until you encounter issues. If all is stable with this frequency, then proceed to UV another one. And repeat the same stability tests.
I recommend not to UV any higher than -50. You're just begging for a system failure. -50 should easily yield a noticably increase in battery life.
The benefit of UV only yields extended battery life at the cost of some said performance in various ways.
With having said that. Next time you have a question about an specific app, post in the Q&A section of the forums.
If you would like to share an app or theme, post it here. In the "Theme/App" section of the forum.
-cheers
Sent from my MB855 using XDA App
Click to expand...
Click to collapse
Sent from my MB855 using XDA App
1gHz and higher tend to float around -75 to -100 on average. Below 1Ghz it's anywhere between -250 and -150 on average. Attached you will find a list of all reported undervolts on the Atrix minus the ones that are the same undervolt for every clock speed. I've noticed that it's hard to fine tune the jump between the 700Mhz range and 1Ghz. Keeping the jump no greater than 100mV seems to be best.
I would kill to have profiles, under/over clocking and undervolting all in the same app and working. Maybe if enough of us get together we may be able to convince the app devs to put it in. I'd personally love to see it in setcpu or romtoolbox.
Maybe i should build a battery life kernel
Lokifish Marz said:
1gHz and higher tend to float around -75 to -100 on average. Below 1Ghz it's anywhere between -250 and -150 on average. Attached you will find a list of all reported undervolts on the Atrix minus the ones that are the same undervolt for every clock speed. I've noticed that it's hard to fine tune the jump between the 700Mhz range and 1Ghz. Keeping the jump no greater than 100mV seems to be best.
Click to expand...
Click to collapse
Sent from my MB855 using XDA App
jokersax11 said:
Maybe i should build a battery life kernel
Sent from my MB855 using XDA App
Click to expand...
Click to collapse
That would be cool. Just a posting of all successful settings would be nice too.
One thing I've never understood are a bit more of the specific on how uv affects performance, from the comments it seems to have even more of an effect the more you oc (you don't seem to be able to uv as much when you oc).
Sent from my Photon 4G
MinceMan said:
That would be cool. Just a posting of all successful settings would be nice too.
One thing I've never understood are a bit more of the specific on how uv affects performance, from the comments it seems to have even more of an effect the more you oc (you don't seem to be able to uv as much when you oc).
Sent from my Photon 4G
Click to expand...
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My undervolt txt are all the successful settings for our sister phone the atrix. From what I've seen, the results are in line with both my mopho's. Overclock/undervolt is more an art than science. There are many factors that affect results such as cpu batch, ambient temps, mainboard variances and the list goes on. This is why pc overclockers will hunt for specific batch numbers when overclocking. The same goes for undervolting.
With regards to performance. There is a very fine line between efficient and inefficient when oc'ing and uv. I'll be honest, I've spent hours fine tuning an oc/uv to get the best performance at a given clock rate. I've used the following formula (benchmark score/uv= efficiency @ tested clock speed) and it has paid off in the past (the art vs science thing still applies though). I have, in some cases, found the device to be more efficient with a tuned undervolt than stock. However no to devices are the same, EVER.
Lokifish Marz said:
1gHz and higher tend to float around -75 to -100 on average. Below 1Ghz it's anywhere between -250 and -150 on average. Attached you will find a list of all reported undervolts on the Atrix minus the ones that are the same undervolt for every clock speed. I've noticed that it's hard to fine tune the jump between the 700Mhz range and 1Ghz. Keeping the jump no greater than 100mV seems to be best.
I would kill to have profiles, under/over clocking and undervolting all in the same app and working. Maybe if enough of us get together we may be able to convince the app devs to put it in. I'd personally love to see it in setcpu or romtoolbox.
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Thanks man...all these posts have been very informative...this is the most info on undervolting I've seen in one place. You guys are awesome...I'll post some nudes soon in appreciation....HA!..just kidding...unless you ask nicely...then it'll be $5.
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Thanks Loki!
Sent from my Photon 4G