Develop Bugs

[Q] help setting cpu

i am running cm7 with stock kernal i go into settings then to cyanogen settings then to cpu settings the min. i can do is 245 mhz and max i can do is 1113mhz and it was set to 998 mhz what would be a good setting to set the max at for better battery if able and also not have bad performance?
all of the options are:
245 mhz
384 mhz
422 mhz
460 mhz
499 mhz
537 mhz
576 mhz
614 mhz
652 mhz
691 mhz
729 mhz
768 mhz
806 mhz
844 mhz
883 mhz
921 mhz
960 mhz
998 mhz
1036 mhz
1075 mhz
1113 mhz

I would just leave it at 998. You really don't notice that much of an extra boost by overclocking IMO. You can underclock, I had mine at 768 and didn't notice any slowdown, but can't say it helped battery life tremendously. Try out what you want and take note of your findings. See what combination works best for you.

Defaults are actually pretty good. However if you want to increase your battery life look at some of the other kernels out there. I've choosen Chad's incredikernel. It charges up very fast and has a min CPU of 128 which improves the battery life when the screen is off.
Sent from my ADR6300 using XDA App

ctinsley said:
Defaults are actually pretty good. However if you want to increase your battery life look at some of the other kernels out there. I've choosen Chad's incredikernel. It charges up very fast and has a min CPU of 128 which improves the battery life when the screen is off.
Sent from my ADR6300 using XDA App
Click to expand...
Click to collapse
yeah i have the incredikernal on my computer ready to put on my SD card cause ive seen pretty much everything good about that one but then i also see everyone saying that kernals dont really show a difference.. i guess my only option to do is try it out and see where it takes me...

g00s3y said:
I would just leave it at 998. You really don't notice that much of an extra boost by overclocking IMO. You can underclock, I had mine at 768 and didn't notice any slowdown, but can't say it helped battery life tremendously. Try out what you want and take note of your findings. See what combination works best for you.
Click to expand...
Click to collapse
thanks for the reply and yes thats what im going to do

the latest one from cm7 gives me a great battery life

+1 for Chads.

anything with the smartass gov. rocks imo.

Voltage and overclocking on blazer 2.0

Hi i was wondering if anyone had some good voltages to undervolt the blazer 2.0 rom. What apps did you have success with and what voltages at what speeds? Also some ideas for blazer 2.0 rom with desperado kernel. Either or both would be great
Sent from my SPH-D710 using xda premium

Anyone help me with these dang voltages lol. I tried tegrak and setcpu and i tried just tegrak on the stock kernel that comes with the blazer 2.0 ROM. After little success i switched to desperado and tried the same methods and even gave voltage control a try. My only problem is anything over 1.4g i freeze up and reset regardless of now high i overvolt the speeds. I'm looking to run 1.6g smoothly and maybe even get some ideas from you guys on undervolting the lower speeds
Sent from my SPH-D710 using xda premium

Under/Over
I've been looking at the same thing.
For undervolting, I'm starting with -75mV across the board to run for a day or two to evaluate improved battery life.
HondaCop reported success with -100mV across the board with Tegrak:
http://forum.xda-developers.com/showpost.php?p=18259820&postcount=105
Suggestions from that thread include:
a) leave internal voltages alone
b) let the 300 sec "stability watch" finish before testing
c) don't set to apply at boot until you've run long enough to ensure stability
d) 1.6-1.65Mhz is likely the performance ceiling on our devices
e) run 'CF-Bench' as part of stability testing
Some settings I'm testing this AM:
1504Mhz @ 1375mV (then 1275mV)
1600Mhz @ 1375mV (then 1350mV)
1652Mhz @ 1450mV
1700Mhz @ 1500mV (then 1450mV)
I'm keeping a log to share results on the aforementioned thread.
Good luck!

That is wonderful advice! Thanks so much
Sent from my SPH-D710 using xda premium

Test Results
Glad to be of help!
Here are my test results; as they say YMMV.
Methodology
o used the same governor for each test (ondemand)
o tested with Quandrant, then Linpack, then CF-Bench
o tested with battery cover removed for physical CPU heat check
o gave ~min between benchmark tools
o used phone to update an app, pull up a page, watch a vid, etc
o re-ran benchmarks to confirm consistent results & stability
Config
Baseband/modem EL13 (big up Calkulin)
Kernel 2.6.37-7-SPH-D710.EL13-CL806382 (chris41g via sfhub auto root, danke!)
ROM/Build GB.EK02 (via OFA update)
Tegrak Overclock Ultimate 0.8.4.5 / driver 2.2.0.2
Tested Successfully
1452Mhz @ 1350mV
1452Mhz @ 1300mV : Quadrant 4741, LP 112, CF-B 13636/3910/7800
1500Mhz @ 1375mV
1500Mhz @ 1350mV : Quadrant 4888, Linpack 117, CF-B 13852/4045/7967
1560Mhz @ 1400mV : benchmarks falling off..
1560Mhz @ 1375mV : and going back up?! (nominal heat)
Tested Unsuccessfully
1700Mhz @ 1500mV : immediate freeze
1652Mhz @ 1450mV : froze in Linpack
1608Mhz @ 1425mV : Quadrant FC, froze during Linpack
1608Mhz @ 1400mV : Quadrant looked epic (5180), froze during Linpack
1600Mhz @ 1375mV : Quadrant > 4800, Linpack 120, froze during CF-B
1592Mhz @ 1375mV : Quadrant = 4988, froze during multiple Linpack runs
1564Mhz @ 1350mV
1504Mhz @ 1300mV
1500Mhz @ 1325mV : reboot during CF-B
Observations
There is a V sweet spot for each CPU speed.
Others have reported being able to go up to 1.7Ghz whereas my phone begins to become unstable ~1.6Ghz.
1.5Ghz appears all day long stable on my phone with minimal heat (mean of 4874 from three Quadrant runs, Linpack regularly >110, consistent CF-B results as noted above).
Next to Try
o put into airplane mode
o use the 'performance' governor and set the min = max for benchmark testing (with attention given to CPU temp!)
I set all the slower speeds at -75mV with the max at 1.5Ghz @ 1350mV. I'll report back after a couple days to see what battery life and long-term stability look like.

OK sounds good!
Sent from my SPH-D710 using xda premium

Bullet kernel with stock Tmobile ROM

I have a stock Tmobile ROM, I rooted the phone.
Can I use the bullet kernel with it?

Yes you can use any though I don't see why you would want to use the Bullet kernel. Not to say that its not good but it hasn't been updated in a long time and all the current ones are better performance-wise.

the bullet was good when I had the vibrant. I woild like to try it again with the S2
Sent from my SGH-T989 using XDA

But you upgraded your phone right? Maybe it's time to upgrade your kernel too
(darkside kernel's the best of the best)

yoft1 said:
But you upgraded your phone right? Maybe it's time to upgrade your kernel too
(darkside kernel's the best of the best)
Click to expand...
Click to collapse
I think Eugene's kernel is one of the best but I just say that because I haven't really given dark sides to much of an opportunity. I'm guessing that's the same with you and Eugene's kernel
Sent from my SGH-T989 using Tapatalk

darkside is def beast!

kiingJ said:
darkside is def beast!
Click to expand...
Click to collapse
I'm actually gonna give it a go for a couple of days and see how that works out for me. What are your settings?

iLeopard said:
I think Eugene's kernel is one of the best but I just say that because I haven't really given dark sides to much of an opportunity. I'm guessing that's the same with you and Eugene's kernel
Sent from my SGH-T989 using Tapatalk
Click to expand...
Click to collapse
Guilty as charged! I gave macnut a twirl but LG is not really to my liking and so I never got to use streamline again. But with darkside I'm running it underclocked @1.35Ghz and undervolted by -112.5mV. Your mileage will vary with how much you can undervolt it and get away with it.

yoft1 said:
Guilty as charged! I gave macnut a twirl but LG is not really to my liking and so I never got to use streamline again. But with darkside I'm running it underclocked @1.35Ghz and undervolted by -112.5mV. Your mileage will vary with how much you can undervolt it and get away with it.
Click to expand...
Click to collapse
K so I know how to under clock but I'm a noob with undervolting. Do I have to under volt the amount you said to all the frequencies?

iLeopard said:
K so I know how to under clock but I'm a noob with undervolting. Do I have to under volt the amount you said to all the frequencies?
Click to expand...
Click to collapse
Start with -50mV across the board and work your way down from there to see how your phone reacts. I have Darksides ROM at Min 384/Max 1.51GHz and undervolted at -50mV across the board and it works quite well. I might give -100mV a shot to see how it goes.

Jdom58 said:
Start with -50mV across the board and work your way down from there to see how your phone reacts. I have Darksides ROM at Min 384/Max 1.51GHz and undervolted at -50mV across the board and it works quite well. I might give -100mV a shot to see how it goes.
Click to expand...
Click to collapse
Yesssir I'll give that a go. I'll update later, the minimum for each frequency is 800mV correct? At -50 I have the first bottom five at 800mV

iLeopard said:
Yesssir I'll give that a go. I'll update later, the minimum for each frequency is 800mV correct? At -50 I have the first bottom five at 800mV
Click to expand...
Click to collapse
You can technically go lower than 800 but it was posted at one point that any lower than that causes more battery drain than it saves (I'm not sure why though). Things to look for when you're undervolting: if you're off the mark by more than 2-3 steps (12.5mV per step), your phone will reboot on the spot. If you're off by just one step, your phone well generally work fine but will randomly reboot on occasion. For me, if I go to -125 and I leave my phone alone for around 20 min it will reboot. But I get no reboots at 112.5.
Something to keep in mind though: undervolting isn't linear which means that while my 112.5 works for my underclocked processor at 1.3GHz, it doesn't work at 1.7 GHz. The higher you run your processor the less you can globally undervolt.

yoft1 said:
You can technically go lower than 800 but it was posted at one point that any lower than that causes more battery drain than it saves (I'm not sure why though). Things to look for when you're undervolting: if you're off the mark by more than 2-3 steps (12.5mV per step), your phone will reboot on the spot. If you're off by just one step, your phone well generally work fine but will randomly reboot on occasion. For me, if I go to -125 and I leave my phone alone for around 20 min it will reboot. But I get no reboots at 112.5.
Something to keep in mind though: undervolting isn't linear which means that while my 112.5 works for my underclocked processor at 1.3GHz, it doesn't work at 1.7 GHz. The higher you run your processor the less you can globally undervolt.
Click to expand...
Click to collapse
Okay cool I'll keep that in mind. I'm on stock frequency at 1.51GHz and at -50mV. So far so good, I'll give it like 2-3 marks less later and see how that works. Thanks again for your help

iLeopard said:
Okay cool I'll keep that in mind. I'm on stock frequency at 1.51GHz and at -50mV. So far so good, I'll give it like 2-3 marks less later and see how that works. Thanks again for your help
Click to expand...
Click to collapse
Here's the full list of what the default voltages are, work your way down from there.
(Mhz/Ghz) - (mV)
192 - 800
310 - 825
384 - 825
432 - 850
486 - 850
540 - 875
594 - 875
648 - 900
702 - 900
756 - 925
810 - 975
864 - 975
918 - 1000
972 - 1025
1.02 - 1025
1.08 - 1050
1.13 - 1075
1.18 - 1100
1.24 - 1125
1.29 - 1150
1.35 - 1150
1.4 - 1175
1.45 - 1200
1.51 - 1225
1.62 - 1250
1.67 - 1275
1.72 - 1300
1.78 - 1312.5

Jdom58 said:
Here's the full list of what the default voltages are, work your way down from there.
(Mhz/Ghz) - (mV)
192 - 800
310 - 825
384 - 825
432 - 850
486 - 850
540 - 875
594 - 875
648 - 900
702 - 900
756 - 925
810 - 975
864 - 975
918 - 1000
972 - 1025
1.02 - 1025
1.08 - 1050
1.13 - 1075
1.18 - 1100
1.24 - 1125
1.29 - 1150
1.35 - 1150
1.4 - 1175
1.45 - 1200
1.51 - 1225
1.62 - 1250
1.67 - 1275
1.72 - 1300
1.78 - 1312.5
Click to expand...
Click to collapse
Thanks much for this, I undervolted too much and now my battery is draining like crazy. I was at -100mV and was fixing to flash the kernel all over again, saved me a good 5 minutes thanks

Agat 0.4.2 Volts versus Stock?

Hey everyone I'm a bit new here, I mostly lurk lol. But I just had 2 questions on stock volts/undervolting
I'm running Agat 0.4.2 (http://forum.xda-developers.com/showthread.php?t=1767421) and
I couldn't find the stock voltages for the phone listed anywhere. Can anyone confirm these are the same as stock kernel within the 200-1200mhz range?
Also would -50mV drops be safe across the board on Agat Kernel?
1600Mhz __1400mV
1500Mhz __1375mV
1400Mhz __1325mV
1300Mhz __1300mV
1200Mhz __1274mV
1100Mhz __1225mV
1000Mhz __1175mV
900Mhz ___1125mV
800Mhz ___1075mV
700Mhz ___1025mV
600Mhz ___1000mV
500Mhz ___975mV
400Mhz ___975mV
300Mhz ___975mV
200Mhz ___950mV
100Mhz ___925mV
50Mhz ____900mV
25Mhz ____875mV

Yes that is what I was running for a while....
Sent from my SPH-D710 using xda app-developers app

I usually run 200Mhz @ 800mV, 500Mhz @ 900, 800Mhz @ 950mV and so on. I had a stable UV of about 25-50mV lower but i swapped ROMs and a little reboot gremlin appeared. These things UV quite well until you start overclocking. I haven't been able to get a stable OC yet but I'm sure it's my device that's being a party pooper ;-p

[Q] [POLL-TYPE]Poll about overclock

Hey everyone,
Was just wondering, what is your Maximum overclock on your Note II. At what voltage?

1.8GHz for daily usage at 1250mv

[email protected]
Latest antutu 22570.
Sent from my cm_tenderloin using Tapatalk 4

Don't actually overclock, don't really need it so far

Overclocking Benefits
Wow, 1.86 GHz. Great. Nice low voltage too!
I run at 1.92 GHz, 1350 mV (Sometimes I can get 1325 mV, but I overclocked the GPU. It seems if the GPU is faster the processor needs more voltage?)
Latest Antutu Score: 25545, beating the stock S IV

Hitman7987 said:
Wow, 1.86 GHz. Great. Nice low voltage too!
I run at 1.92 GHz, 1350 mV (Sometimes I can get 1325 mV, but I overclocked the GPU. It seems if the GPU is faster the processor needs more voltage?)
Latest Antutu Score: 25545, beating the stock S IV
Click to expand...
Click to collapse
Don't you undervolt all CPU clocks from 200Mhz to 1900Mhz?

nukeman239 said:
Don't you undervolt all CPU clocks from 200Mhz to 1900Mhz?
Click to expand...
Click to collapse
Yep! All clocks are undervolted, each step decrease 25 mV from previous. I found this to give best benchmark and stability!
If you know of any clocks I can decrease further, please share.
Also, does anybody know if 2000 MHz is possible? I heard overclocking should be between 10-20% increase otherwise the CPU could malfunction (device freeze, SOD, ect) Now, 1600 MHz + 20% = 1920 MHz so I don't think any higher is possible.... But anything is possible on XDA/Android!

Tried your setting hitman but best antutu I could get was 23049.
Sent from my cm_tenderloin using Tapatalk 4

snake65 said:
Tried your setting hitman but best antutu I could get was 23049.
Sent from my cm_tenderloin using Tapatalk 4
Click to expand...
Click to collapse
Ok. What ROM are you using? I'm running CM 10.2
Also, governor to Pegasusq. I customised that to give best performance I can get.
And, what kernel are you using? I'm using Devil Kernel 0.35 or something (the latest devil kernel)
Use TricksterMod to overlook GPU to 800 MHz, you'll need extra volts.
Download all in one toolbox from Play, or Clean Master. Run this before running Antutu
Using TricksterMod, make sure CPU temp is below 30 Degrees Celsius.