Develop Bugs

[Q] How fast is your Epic?

Ok, I have search, but didn't find anything like this. I am wondering for those that can overclock, what speed do you use for your daily driver? I don't mean what speed you use just to play with benchmarks.
I know the faster you overclock you have more battery drain, so answer honestly!
I'll be first, I normally run at 1.3ghz, but am now trying 1.4ghz to see how much more battery drain I will have. I love my epic, it has always been fast and stable. What I run is in my signature.
If you feel like it, list your rom, kernel, and what you use to set it. It will be cool to see how fast you guys like to run on a daily diet!

I run at 1ghz... But when aosp roms come out probly 800mhz... My phone doesnt lag at all i see no need for overclocking other than banchmarks.
Sent from my SPH-D700 using XDA App

I run at 1.2 whenever I can, it shouldn't drain your battery unless yur playing games and shhtuff.
Sent from my SPH-D700 using XDA Premium App

Same as deano, 100-800mhz conservative, 90% of the time, 100-1200 ondemand rare. I UV also so the 100-800mhz really gets great life.

I run at 1400/100 "on demand" all of the time when on Froyo. No undervolting. I have 2 stock batteries so battery life isn't my #1 priority...everything working and stability is and fortunately 1400 is totally stable for me. I saw a greater performance increase from 1300 to 1400 than I did from 1200 to 1300
Sent from my SPH-D700 using Tapatalk

JohnCorleone said:
I run at 1400/100 "on demand" all of the time when on Froyo. No undervolting. I have 2 stock batteries so battery life isn't my #1 priority...everything working and stability is and fortunately 1400 is totally stable for me. I saw a greater performance increase from 1300 to 1400 than I did from 1200 to 1300
Sent from my SPH-D700 using Tapatalk
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I can almost echo your findings, except I have been running 1300. Out of curiosity how much more battery did you use when you jumped from 1300 to 1400 if you remember?.
I also undervolt a little more from 600 on down than 800 and up, but I rather have more stable than more undervolt. I can't believe how nice hte eipic is even against the current crop of phones. I love it!

Running "on demand" I have noticed very little difference going up to 1400 because its only there maybe 30 minutes per battery charge. It only uses that top setting when its needed. Keeping the undervolt away from those high states will ensure more stability since most of our phones require the voltage on those overclocked states like 1300 and 1400. If you get -25 or -50 stable on those high states, you are pretty lucky
Sent from my SPH-D700 using Tapatalk

I use CFQ and run -50 on 100 - 200 - 300 - 400 - 600 and -25 on 800 - 1000 - 1200 - 1400 and is rock solid thru all of those frequencies.
Do you know if it is better to run less steps, something like 100 - 300 - 600 - 1000 - 1400 rather than how I have it set as above?
Don't forget to vote!

My phone doesn't like 1.4 jiggawatts. I stay at 1.2GHz. I'm running stock ec05 rfs with genocide. 4 hours and 10 minutes in I'm at 68%. With moderate to heavy use. I've been in bed for 2 days with a corneal abrasion. My phones the only thing I can play with lol
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mouseglider said:
I use CFQ and run -50 on 100 - 200 - 300 - 400 - 600 and -25 on 800 - 1000 - 1200 - 1400 and is rock solid thru all of those frequencies.
Do you know if it is better to run less steps, something like 100 - 300 - 600 - 1000 - 1400 rather than how I have it set as above?
Don't forget to vote!
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Click to collapse
I ise 100, 200,400,600,800,1000,1100 or 1120 (depends on kernel) and 1400. Its as smooth as can be so I don't try going with less frequencies
Sent from my SPH-D700 using Tapatalk

RushAOZ said:
...1.4 jiggawatts....
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I like that! If you don't mind, I like to use that in my sig if it works! LOL

Beasty!!!!!....EDIT...1.45 giggawatts...lol
Sent from my SPH-D700 using XDA Premium App

mouseglider said:
I like that! If you don't mind, I like to use that in my sig if it works! LOL
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Click to collapse
Lmao sure. Don't quote me though. I saw someone else use it and it made me rofl
Sent from my SPH-D700 using XDA Premium App

1.4 jiggawatts!!! I'm surprised my phone didn't lock up. Usually does at 1.4 lol.
Ec05 stock rfs
3.1.0.1 rooted
Genocide yo
Sent from my SPH-D700 using XDA Premium App

RushAOZ said:
1.4 jiggawatts!!! I'm surprised my phone didn't lock up. Usually does at 1.4 lol.
Ec05 stock rfs
3.1.0.1 rooted
Genocide yo
Sent from my SPH-D700 using XDA Premium App
Click to expand...
Click to collapse
The best way to test stability is to max out both sliders, delect "performance" DON'T SET ON BOOT, and run benchmarks. If it doesn't crash after a few minutes, you should be ok.
Sent from my SPH-D700 using Tapatalk

I'm using voltage control. You mean to force the phone to stay at 1.4ghz?
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RushAOZ said:
I'm using voltage control. You mean to force the phone to stay at 1.4ghz?
Sent from my SPH-D700 using XDA Premium App
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Click to collapse
yup exaxtly. do that for a few benchmark tests and try YouTube, etc....pushing the envelope on this one...
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I'm at 1.3ghz. CM7 doesn't like 1.4 for whatever reason.
Not undervolted, but i'm getting 24 hours with 65% leftover.
I'm quite happy!

JohnCorleone said:
yup exaxtly. do that for a few benchmark tests and try YouTube, etc....pushing the envelope on this one...
Sent from my SPH-D700 using XDA Premium App
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Trap lol got some lock ups during dungeon defenders. All's good at 1.3 though. Thanx for the heads up dood!
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darkierawr said:
I'm at 1.3ghz. CM7 doesn't like 1.4 for whatever reason.
Not undervolted, but i'm getting 24 hours with 65% leftover.
I'm quite happy!
Click to expand...
Click to collapse
Damn darkie, you can't get much better than that!
Sent from my SPH-D700 using Tapatalk

SetCPU, What are your settings?

Anyone try SetCPU after rooting? I can adjust the min down to 192mhz. Anyone have any idea how safe it is yet as far as sleep of death?
Sorry if this is not in the correct forum

You can test whatever you'd like. I tried it too so just don't check the option for set at boot.
-Hercules composed this post and threw it at your face to be read-

Just worried since it is my alarm clock too, a sleep of death could lead to a sleep of no job

Some believe tegrak is better for samsungs
Sent from my SGH-T989

i believe there was something about needing a custom kernel that supports a cpu oc app. something about it not engaging both cores... just one of them. somebody out there knows more than me about this i'm sure.

I think i remember dsexton702 talkin about needing a kernel for tegrak to function properly
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luckyduck69 said:
i believe there was something about needing a custom kernel that supports a cpu oc app. something about it not engaging both cores... just one of them. somebody out there knows more than me about this i'm sure.
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Click to collapse
A custom Kernel is only needed Fri overclocking.
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Had mine set on 192 min all night and no issues with waking up so far.

mbernusg said:
Some believe tegrak is better for samsungs
Sent from my SGH-T989
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Click to collapse
Tegrak probably won't work properly if I'm correct set cpu or oc/uv beater should be fine. Tegrak was used for samsung processors. Qualcomm processors are able to scale better at lower or higher frequencies.
---------- Post added at 09:00 AM ---------- Previous post was at 08:55 AM ----------
luckyduck69 said:
i believe there was something about needing a custom kernel that supports a cpu oc app. something about it not engaging both cores... just one of them. somebody out there knows more than me about this i'm sure.
Click to expand...
Click to collapse
It will never engage both cores that is asynchronous. Both processors work independently from each other. This is why you see lag. Both processors are never at their full potential. Qualcomm design the processors for best battery life in mind with good performance. There is a way to get both cores to be synchronized though if it matters to you. But expect worst battery life.

Almost forgot we have a snapdragon lol
Sent from my SGH-T989

Moved to proper forum.

I put mine at 384 min and 1350 max .
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mbernusg said:
Almost forgot we have a snapdragon lol
Sent from my SGH-T989
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The one we have should also overclock very nicely. The APQ8060 is the same one in the Touchpad and that one easily does 1.9Ghz.

When I installed setcpu and had it auto dectect speeds It atuomatically set the min at the max and the min at the highest clock speed. Is that normal? Did anyone else notice that?

hazard99 said:
When I installed setcpu and had it auto dectect speeds It atuomatically set the min at the max and the min at the highest clock speed. Is that normal? Did anyone else notice that?
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I noticed that too but lowered the min and was able to setup profiles

agrover5279 said:
I noticed that too but lowered the min and was able to setup profiles
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Click to collapse
That's normal. I have noticed the same thing on the g2x and g2. I wouldn't worry about it unless it won't let you change it.
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I have mine set @ max 1512 min 384. Temps range from 77-84.
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I have mine at 192 min and 1512 Max with no issues
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Is it currently safe to overclock the phone using this app?

saltmine said:
Is it currently safe to overclock the phone using this app?
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Click to collapse
Yes. But you would need a kernel that supports Overclocking and Undervolting.
Sent from my SGH-T989 using Tapatalk

Undervolting//how low can your phone go :D

just a little information/ competition to see which SGS2 is the best , i want to see how low of a voltage you can go. I am using Stability test to test out the voltage, 3 round of classic test at 1.73ghz at 1125mV, and it stable, a little scare to go down more but here some info on my SGS2
running
beastmod 4.2
kernel 2.3.6
Was running originally at 1175 but i undervolt to 1125 and running stable at a stable temp of 41-42..
what's yours

be careful with such drastic undervolting at those frequencies, could result in corrupt nand.

G1_enthusiast said:
just a little information/ competition to see which SGS2 is the best , i want to see how low of a voltage you can go. I am using Stability test to test out the voltage, 3 round of classic test at 1.73ghz at 1125mhz, and it stable, a little scare to go down more but here some info on my SGS2
running
beastmod 4.2
kernel 2.3.6
Was running originally at 1175 but i undervolt to 1125 and running stable at a stable temp of 41-42..
what's yours
Click to expand...
Click to collapse
This isn't undrevolting..... this is underclocking.
Undervolting is pretty dangerous with trial and error. The lowest I'll go is -75.
And my frequencies at min 384 and mas 1350 ondemand
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xxKamikazexx said:
This isn't undrevolting..... this is underclocking.
Undervolting is pretty dangerous with trial and error. The lowest I'll go is -75.
And my frequencies at min 384 and mas 1350 ondemand
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no underclocking meaning i would use less ghz than the stock, this is minimizing the voltage on the core.
what your doing is underclock, i put mine fixed on 1.73ghz at 1125mV of voltage

icenight89 said:
be careful with such drastic undervolting at those frequencies, could result in corrupt nand.
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Click to collapse
I have never heard of such thing, i'm not doubting you but from over the years, i heard undervolting have positive affect on the CPU by lowering temp and give battery more juice.
where did you get those facts from?

G1_enthusiast said:
no underclocking meaning i would use less ghz than the stock, this is minimizing the voltage on the core.
what your doing is underclock, i put mine fixed on 1.73ghz at 1125mV of voltage
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Ohhhh my mistake, I didn't catch the mv after the 1125 lol that's why I thought you were only messing with ghz ha ha ha
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xxKamikazexx said:
This isn't undrevolting..... this is underclocking.
Undervolting is pretty dangerous with trial and error. The lowest I'll go is -75.
And my frequencies at min 384 and mas 1350 ondemand
Sent from my SGH-T989 using xda premium
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Click to collapse
As far as I know, there are no dangers associated with undervolting. I run at those frequencies too at -112.5 and have never had a problem of any sort.

I run about 1ghz. No under volt with this ics kernel but with my old gb kernel I undervilted with faux -100 at 1ghz...ran cool even with games and video, great battery life. And honestly 1ghz is plenty for snappy fast speed
Sent from my SAMSUNG-SGH-T989 using XDA

i also run 1ghz, runs super smooth across the board

zander21510 said:
I run about 1ghz. No under volt with this ics kernel but with my old gb kernel I undervilted with faux -100 at 1ghz...ran cool even with games and video, great battery life. And honestly 1ghz is plenty for snappy fast speed
Sent from my SAMSUNG-SGH-T989 using XDA
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Click to collapse
How did you undervolt by -100?

yoft1 said:
As far as I know, there are no dangers associated with undervolting. I run at those frequencies too at -112.5 and have never had a problem of any sort.
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Click to collapse
I don't know if you're familiar with overclocking, but the same type of stability issues can occur. When you're undervolting you can think of your stock speed as an "overclock" and you're just trying to minimize the voltage necessary for stability. If you undervolt too much you can experience freezing, corruption, bad lag, etc. It's all the same process for desktop computers, laptops, and anything else you can play with the voltage.
Personally I'm at -62.5, but after seeing how low people are going I might be a bit more adventurous. Don't use the "Set at Boot" option when you're experimenting.

SupaKid said:
How did you undervolt by -100?
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I did it gradually...and the fact that I was at 1ghz might have also made it possible. Started at -50 since most had said it was safe...then tried 60 then 75 then 90 then maxed at 100...worked beautifully.
I have heard and it is true that phones are made very different. Some exact same models can't oc or UV as high or low as others...I got lucky with a really good model...my old nexus S couldn't oc to 1.4 without freezing while others could.
Sent from my SAMSUNG-SGH-T989 using XDA

Nice!
Could I try your script?

SupaKid said:
Nice!
Could I try your script?
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Click to collapse
My bet is he used romanbb's FauxClock (which maxes out at -100mv).

What's the best app to under volt with?
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asting said:
I don't know if you're familiar with overclocking, but the same type of stability issues can occur. When you're undervolting you can think of your stock speed as an "overclock" and you're just trying to minimize the voltage necessary for stability. If you undervolt too much you can experience freezing, corruption, bad lag, etc. It's all the same process for desktop computers, laptops, and anything else you can play with the voltage.
Personally I'm at -62.5, but after seeing how low people are going I might be a bit more adventurous. Don't use the "Set at Boot" option when you're experimenting.
Click to expand...
Click to collapse
Right, I meant that there are no risks to undervolting in terms of physical damage to your phone, only stability issues which is fixed with a reboot, assuming you didn't set at boot. Overclocking is a bit different in that the risk overclocking presents in addition to stability issues is the risk of overheating which can permanently damage your phone. Undervolting can compensate for this somewhat by letting the power supplied to the processor and thus reducing the risk of overheat.

hiz99 said:
What's the best app to under volt with?
Sent from my SGH-T989 using XDA
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Click to collapse
I use system tuner, you can also look for Gideons script that is flashable in cwm to undervolt.

Im undervolted to -75mv for quite some time running a script clocked at 1.518min384
Sent from MY Juggernaut!!!:thumbup:

I have Gideon's OC/UV script. How could I edit it to undervolt by -100?

SupaKid said:
Nice!
Could I try your script?
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Click to collapse
yup that's what I used lol.

Undervolt Question

Alright question for some devs or some peeps that understand architecture better then I do..
I am playing with undervolting,
so I set my max and min cpu speed to say1400, then I can successfully lower the voltage to something crazy like 800 mV (which i know should never work) but it does.. until the cpu tries to switch to a different level.
If i turn the screen off and back on, it works just fine, but if i turn it on long enough to hit deep sleep it wont turn back on.
Now is this because the voltage has not infact been changed until the cpu switches off that frequency and back onto it, or is this because there is more strain on the cpu when it first switches?
i can successfully boot into 1400 mhz at 850 mv. but im assuming again that set on boot isnt occuring till after the processor is already in 1400 mhz at the default mv and it wont switch till it gets off that freq and back on..?
Thanks for some input guys

I'm not a dev but i wrote up my undervolting successes on the note 2 here
http://forum.xda-developers.com/showthread.php?t=1997838
Sent from my SGH-I317M using xda app-developers app

lmike6453 said:
I'm not a dev but i wrote up my undervolting successes on the note 2 here
http://forum.xda-developers.com/showthread.php?t=1997838
Sent from my SGH-I317M using xda app-developers app
Click to expand...
Click to collapse
Good thread..thank you

its almost like you didnt read my post.
I am not asking how to undervolt.. If you read what I posted youd be shocked to see it work too. but more then likely it cant dynamically change the voltage and just needs to switch off it and back on to try the new voltage.
I did however ask HOW to undervolt the gpu

gundal said:
its almost like you didnt read my post.
I am not asking how to undervolt.. If you read what I posted youd be shocked to see it work too. but more then likely it cant dynamically change the voltage and just needs to switch off it and back on to try the new voltage.
I did however ask HOW to undervolt the gpu
Click to expand...
Click to collapse
You stated that you were having issues with the phone not waking from deep sleep at 800mv.
Even though I couldn't answer your question in full, the link I posted will show you that multiple users could only get a stable undervolt of 813mv...
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800 mv at 1400 MHZ
and i stated that I KNEW it should not work. but then again running at that clockspeed/voltage at all should be impossible..
all i wanted to confirm was that it does r doesnt alter the voltage while the processor is fixed on that clockspeed.
go try it, set your min and max to 1400 then drop the voltage to 800mv. it will keep wrking FINE, if u did one cpu jump it would restart.
Sent from my Transformer Prime TF201 using xda app-developers app

oh and btw. I am running 750 mv at 200 and 775mv at 300 and its 100% stable, got 26 hours of battery life with 4 hours of talk time on that, and over 3 hours was spent at 200 mhz
Sent from my Transformer Prime TF201 using xda app-developers app

CM 10 Clock Speed

So I have recently installed CM 10 on my S3 and I'm loving it. However i am a bit worried. The S3 is said to run at 1400 Mhz or 1.4 Ghz. But when I go into settings then performance, the max is set to 1512 Mhz and I didn't touch anything! CM sets it to this by default. My question is does Cyanogenmod overclock your device? Or is that the clock speed that S3 really runs on? My phone has also been getting hot lately but I'm not sure if that has to do with anything at all. Any help is Greatly appreciated!!!

dima470 said:
So I have recently installed CM 10 on my S3 and I'm loving it. However i am a bit worried. The S3 is said to run at 1400 Mhz or 1.4 Ghz. But when I go into settings then performance, the max is set to 1512 Mhz and I didn't touch anything! CM sets it to this by default. My question is does Cyanogenmod overclock your device? Or is that the clock speed that S3 really runs on? My phone has also been getting hot lately but I'm not sure if that has to do with anything at all. Any help is Greatly appreciated!!!
Click to expand...
Click to collapse
If the kernel supports it. But stock touchwiz runs at 1.5.
Sent from my SGH-I747 using xda premium

dxwilliams40 said:
If the kernel supports it. But stock touchwiz runs at 1.5.
Sent from my SGH-I747 using xda premium
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Click to collapse
I never changed the kernel. So I shouldn't worry right?

dima470 said:
I never changed the kernel. So I shouldn't worry right?
Click to expand...
Click to collapse
1400 mhz is the max stock clock frequency on the international version (i9300) and 1512 mhz is the stock max freq for the at&t version (i747).
I haven't had any issues with heat. Try running an app to check the CPU temp.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app

Also how is or battery life? I know when my phone gets hot its because something is eating my battery. I by some controls on said apps and I am running at 1.9 with ko heat issues
Sent from my SAMSUNG-SGH-I747 using xda premium

Pbwizkid said:
Also how is or battery life? I know when my phone gets hot its because something is eating my battery. I by some controls on said apps and I am running at 1.9 with ko heat issues
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Click to collapse
The battery life is great I'm not sure why its getting hot

I would use better battery stats just to see what is accessing or CPU. Also u may wipe and do a fresh full clean install. Like I said I have mine over clocked to 1.9 with no undervolting with no issue. But also keep in mind every phone is different.
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