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[KERNEL] Clemsyn Version 11 PimpMyGtab Underclocking control

Releasing my kernel ver10 which has NO OVERCLOCKING but has Undervolting. I'm pretty happy with the speed of Tegra 2 and I think there are a few advantages in keeping our speed in stock. Advantages IMO are as follows
1. Better Battery life
2. Less heat
3. Stability (unless it is too undervolted)
Update 4/25/11
Releasing PimpMyGtab and My latest kernel ver 11 with no Overclocking, just stock Speeds..Underclock using PimpMyGtab
Here is the link on how to use PimpMyGtab
http://forum.xda-developers.com/showthread.php?t=1018411
** If you get a scaling_governor error upon starting PimpmyGtab. It means you need to set your governor by going to Terminal and typing echo powersave > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor or by installing CPU Master and choosing powersave in governor.
BIG THANKS TO CPASJUSTE for the app and kernel codes.
BTW, If you like my work, don't hesitate to buy me a beer
If you ike PimpMyGtab, make sure you buy PimpMyCPU (Source) from the market by Cpasjuste
Thanks.

Nice. I'm not a fan of overclocking, however undervolting DOES interest me. As soon as I get an opportunity, I may try this out.
Curious, what's the stock voltage?

OK, LMK how it goes.

Phoenix84118 said:
Nice. I'm not a fan of overclocking, however undervolting DOES interest me. As soon as I get an opportunity, I may try this out.
Curious, what's the stock voltage?
Click to expand...
Click to collapse
stock - 750mv - 1000mv

Well I tried it out real quick, it works well (haven't verified battery life changes), but I had some questions:
Is there anyway to set the voltages explicitly? SetCPU didn't work with it (couldn't even change the freq or scaling governor).
I forgot your kernel doesn't support mounting the internal SD over USB. Is that something that will be fixed soon (assuming it's actually broken)?
I won't have my tab for a few weeks, sending it in for warranty replacement. So I won't be able to do further testing.
Thanks for the great work!

Hello clemsyn,
Try it out and battery life is soooooo gooood ... lot better than the OC 1.5GHZ one, of cause it run slower, but it's where i came to ask, if you could release one with the same voltage but for 1.2Ghz (which i guess it's stock speed)?
Many thanks for your hard work

y2k-inc said:
Hello clemsyn,
Try it out and battery life is soooooo gooood ... lot better than the OC 1.5GHZ one, of cause it run slower, but it's where i came to ask, if you could release one with the same voltage but for 1.2Ghz (which i guess it's stock speed)?
Many thanks for your hard work
Click to expand...
Click to collapse
Will do, just busy with life at the moment

y2k-inc said:
Hello clemsyn,
Try it out and battery life is soooooo gooood ... lot better than the OC 1.5GHZ one, of cause it run slower, but it's where i came to ask, if you could release one with the same voltage but for 1.2Ghz (which i guess it's stock speed)?
Many thanks for your hard work
Click to expand...
Click to collapse
OK here it is...this is basically stock voltage with OC to 1.2 ghz.

Thanks. Right now I'm tryingout the 700-900. Quadrant dropped from 2350 to 2150 going from ver9 to the UV.

I've been using the original kernel posted in this thread for a little while now. It has some strange slowdowns when the tablet first boots (from being powered off), but after that it runs great. Have not had any freezes, so it seems stable. Quadrant scores are ~ 2300.

clemsyn said:
OK here it is...this is basically stock voltage with OC to 1.2 ghz.
Click to expand...
Click to collapse
Thanks clemsys for this OC, but got FC every time i run Quadrant ... anyway back to version 10 uv for now

Hmmm, for some reason my pad won't run any of your Ginger undervolted offerings (can't get past my splash screen). But I'm very happy with Ginger9... Thanks!

dschach said:
Thanks. Right now I'm tryingout the 700-900. Quadrant dropped from 2350 to 2150 going from ver9 to the UV.
Click to expand...
Click to collapse
While the quadrant is down a little, I can't really tell any difference in performance when using the tablet. If the battery life improves then I will stick with this one.

sorry if this has been answered before, but the undervolted
kernel still has cifs support?
(just to check, you need clockworkmod to install this, right?)

albright said:
sorry if this has been answered before, but the undervolted
kernel still has cifs support?
(just to check, you need clockworkmod to install this, right?)
Click to expand...
Click to collapse
Yes it does and cwm is required to install

thanks soo much for this. I've been wanting to undervolt but the overclocking for me was a deal breaker. 1ghz is fast enough for any android app imo. Gonna try this soon!!!!!

clemsyn said:
OK here it is...this is basically stock voltage with OC to 1.2 ghz.
Click to expand...
Click to collapse
This one is perfect for me, and for some reason I am able to use quadrant for once... beer is on it's way...

Wont go past splash vegan 5.11. Installed it via cwm then whiped Calvin and cache partition. Any ideas?

extensive said:
Wont go past splash vegan 5.11. Installed it via cwm then whiped Calvin and cache partition. Any ideas?
Click to expand...
Click to collapse
Seems like your tegra can't take the underclocked settings.

Well that sucks

Trinity Kernel...1400mhz max?

I recently flashed the newest Trinity Kernel on my Nexus 7. I still have the stock ROM. I tried to tweak the CPU settings with ROM Toolbox and the most I can overclock is 1400mhz. Why can't I overclock to 1600? Is it because of the stock ROM? I'm looking into Glazed Jelly Bean as a custom ROM but I'm not sure I want or need to use a custom ROM at this point.
Any suggestions?

Because he dropped the Max. You probably flashed A111 correct? That's a TSVZ meaning it is slightly over clocked and undervolted kernel meant for battery not for performance.
Sent from my Nexus 7 using Xparent White Tapatalk 2

U2Bono269 said:
I recently flashed the newest Trinity Kernel on my Nexus 7. I still have the stock ROM. I tried to tweak the CPU settings with ROM Toolbox and the most I can overclock is 1400mhz. Why can't I overclock to 1600? Is it because of the stock ROM? I'm looking into Glazed Jelly Bean as a custom ROM but I'm not sure I want or need to use a custom ROM at this point.
Any suggestions?
Click to expand...
Click to collapse
try a96, its one of my faves. it has a max of 1700mhz http://goo.gl/mLUCZ

Mildly on topic question ... do you notice any imporvments with overclocking? My first experience with overclocking as on my Hero, and then Galaxy S1, but this N7 just feels so fast i cant see overclocking making it any smoother? lol
thanks

myke66 said:
Mildly on topic question ... do you notice any imporvments with overclocking? My first experience with overclocking as on my Hero, and then Galaxy S1, but this N7 just feels so fast i cant see overclocking making it any smoother? lol
thanks
Click to expand...
Click to collapse
yes. its noticeable, but not like on the older devices.

simms22 said:
yes. its noticeable, but not like on the older devices.
Click to expand...
Click to collapse
Nice, ill have to look into rooting sometime soon.

Ok, I got the a96 and I've flashed it...
Is there a detailed changelog for each version? The a111 said it was a 1600mhz kernel so I don't understand why it was dropped down to 1400. That's where my confusion was.
I did notice some increase in speed at 1400. I was having some stuttering issues with Dead Trigger and Minecraft PE, and they were less with the 1400. I've got it running at 1600 now but I don't know what it will do to the battery or how well it will perform. I'll find out later. I've run through the battery pretty quickly today, but I was tinkering with it A LOT so it's not accurate.
What kind of tweaks could I do using Rom Toolbox that would help me maximize my battery while overclocking to 1.6?

Dont over clock.. i dont even see a need to. I use the ondemand gov which stutters a little but using interactive clears that up. Also using the CFQ IO as it is the stock IO used. Its stock so its gotta be good . Also you should turn F-Sync off that helps quite a bit. Also you could toggle auto hotplug and make it only run two cores while gaming and then turn it back on when finished so that way it will hotplug cores as it sees necessary. You could also up the voltages a little bit, some CPU's dont like the lower voltage and that will cause stuttering and glitching just up them by 25mV and see if it clears if not try another 25mV.

I will try those things, but I really want to play with overclocking and learn what happens. This is my first Android device so I'm experimenting and playing around.
But I have one more question...I've overclocked to 1.5...I found 1.6 to be the same as 1.5. But it seems that after an hour or so, it resets to 1.3. in ROMToolbox. Why is this?

Don't use rom toolbox. Use the Trinity app. It sticks just fine for me. Besides you support the dev to make better kernels.
Sent From My Toro+ via White Tapatalk

simms22 said:
try a96, its one of my faves. it has a max of 1700mhz http://goo.gl/mLUCZ
Click to expand...
Click to collapse
i **** my pants a little when it says "system succesfully corrupted, please freak out now"

MRsf27 said:
i **** my pants a little when it says "system succesfully corrupted, please freak out now"
Click to expand...
Click to collapse
Lol its a joke... its the updater-script you can make it say anything... :laugh:

MRsf27 said:
i **** my pants a little when it says "system succesfully corrupted, please freak out now"
Click to expand...
Click to collapse
ha!
youre not the first

Overclocking past 1.4 Ghz doesn't result in any major usability improvements. I've gone up to 1.7 Ghz and the only thing it does is make my tablet really warm and unstable. All you really need for improving system performance is I/O tweaks to speed up app and page loading, and a little bit of GPU overclocking to help with the transitional effects.

and, to be honest, depending which trinity kernel im using, im using either 1100 or 1150mhz mostly. on a111 im using 1100mhz and on a96 i used 1150mhz. with those speeds everything is still fast but a bit better on battery

Overclocking
If you want a little more information about the the overclocking if you havent already you might want to check out http://forum.xda-developers.com/showthread.php?t=1788759 its the official thread of the trinity kernel for grouper.

[Q] Performance difference from different kernels on different roms

Hi,
I've noticed a huge performance difference between kernels and the roms they're used with.
For example:
I was using AOKP and Franco kernel and got around 20000 antutu points, I've switched to Carbon Rom (because of the build in pie control) and Franco kernel and only get around 13000 points, that's a huge difference.
As a test I've installed Matr1x-kenel on Carbon and get around 21000 points.
I really like Franco-kernel and all the tweaks it offers but don't like the huge drop in benchmarks, I know benchmarks are not a real representation of actual performance but it's still a big difference.
This also occurs in Quadrant and Geekbench.
So my question is why does this happen?
Aren't most roms supposed to be compatible with most kernels?
Thank you in advance.
Best regards.

I can't answer your question as to why that happens (no doubt someone else will) but you seriously should just stop bothering with benchmarks and use your own eyes and experiences as a measure of how good a kernel/ROM is. I doubt you could find a kernel which made the phone visibly slow or that affected usability so I don't see what your concern is tbh.

Thanks for your answer.
Yeah, I read that a lot on XDA, don't trust benchmarks...I understand that but they must have some meaning.
I mean, if not why do they exist or do people bother using them?
To be honest I don't really notice any real performance difference between most kernels I've tested.
Best regards

some roms include many optimizations(like skia/dalvik, krait optimizations, and others), while some dont. its not thekernel thats crapping out on you, its the rom.
---------- Post added at 07:02 PM ---------- Previous post was at 06:58 PM ----------
Nigeldg said:
I can't answer your question as to why that happens (no doubt someone else will) butcomseriously should just stop bothering with benchmarks and use your own eyes and experiences as a measure of how good a kernel/ROM is. I doubt you could find a kernel which made the phone visibly slow or that affected usability so I don't see what your concern is tbh.
Click to expand...
Click to collapse
your eyes can be decieved.. they can see whats happening in the ui for example, but you can not see the complex calculations that are being performed or how your cpu is really performing. you can have a slow device whos ui is quick.

OK, I can understand that not all roms are equal but why does changing the kernel have such a seamingly big impact?
If a rom is bad to begin with it should stay that way no matter what kernel you use with it.
Offcourse what do I know, I'm not a developer so my knowledge on the subject is limited.
I'm just trying to understand what's going on...
Best regards

Pihkal said:
OK, I can understand that not all roms are equal but why does changing the kernel have such a seamingly big impact?
If a rom is bad to begin with it should stay that way no matter what kernel you use with it.
Offcourse what do I know, I'm not a developer so my knowledge on the subject is limited.
I'm just trying to understand what's going on...
Best regards
Click to expand...
Click to collapse
kernels vary too, and they impact greatly because they control just about everything in the phone, kinda like a brain. since the kernels themselves vary, one kernel might be better set up than another to deal with certain code from a certain rom. and then also, every phone reacts differently to each kernel(and roms to a point). thats why its recommended to try out different kernels, combos. only then you can find the perfect combo for you/your device. what works great for somebody, can be lousy for another.

OK, so if i understand correctly it boils down to this:
1. You can do benchmarks but don't base your opinion on just the benchmark scores.
2. Roms can vary greatly in optimizations and efficiency of coding.
3. Kernels can also vary greatly in optimizations and efficiency of coding.
4. There's no such thing as a "best for everyone rom/kernel combo".
5. Not all roms/kernels play equally nice with each other.
6. Play around with as many roms / kernels as possible and decide what works best for ME based on MY experience.
Thanks for the advice.
Best regards.

Its been well over a year since I ran any benchmark of any sort but I tested Franco and carbon because that's what I'm on and you mentioned low scores. I'm on Franco m3 with some tweaked settings and carbon nightly from 7-5. Antutu gave me 20636. I'm using stock CPU and GPU frequencies.

username8611 said:
Its been well over a year since I ran any benchmark of any sort but I tested Franco and carbon because that's what I'm on and you mentioned low scores. I'm on Franco m3 with some tweaked settings and carbon nightly from 7-5. Antutu gave me 20636. I'm using stock CPU and GPU frequencies.
Click to expand...
Click to collapse
Maybe the nightly Carbon rom is more optimized?
I'm on Carbon 1.7 Stable and used Franco nightly 162 to test with.
When I benchmark I try to be as consistent as possible ie same temperature, performance governor, airplane mode etc.
I even cooled my Nexus in the freezer for some minutes to eliminate thermal throttling (yeah I know, watchout for condensation) but still got the same low scores.
Best regards.

Pihkal said:
Maybe the nightly Carbon rom is more optimized?
I'm on Carbon 1.7 Stable and used Franco nightly 162 to test with.
When I benchmark I try to be as consistent as possible ie same temperature, performance governor, airplane mode etc.
I even cooled my Nexus in the freezer for some minutes to eliminate thermal throttling (yeah I know, watchout for condensation) but still got the same low scores.
Best regards.
Click to expand...
Click to collapse
It might be, I didn't do anything special. I left all my background apps running, didnt close anything in the recents, didn't cool the phone first. I just downloaded it and hit start. I use the interactive governor tweaked a bit, and I also tweaked the hotplug settings so it more readily onlines all 4 cores instead of waiting for some of the higher loads to trigger it.

username8611 said:
It might be, I didn't do anything special. I left all my background apps running, didnt close anything in the recents, didn't cool the phone first. I just downloaded it and hit start. I use the interactive governor tweaked a bit, and I also tweaked the hotplug settings so it more readily onlines all 4 cores instead of waiting for some of the higher loads to trigger it.
Click to expand...
Click to collapse
Well, I had to try it myself so I did a factory reset, cleared system,data and dalvik, installed latest carbon nightly.
With stock kernel I almost reached 21000 points, with franco I barely get 17000 points.
Very strange...
edit:
I stand corrected, did a second benchmark and am now getting 20880 points...

are you benchmarking with your cpu speed benchmarked set as highest and lowest cpu speed? you should. if you dont put the same cpu speed as highest and lowest then itll scale up and down. if it scales, you dont actually know what speed its testing and it gives you inconsistamt scores. you want the cpu speed to be the same throughout the test.

When I benchmark I set the governor to performance, this should keep the cpu running at maximum speed without scaling unless I'm mistaking...

Pihkal said:
When I benchmark I set the governor to performance, this should keep the cpu running at maximum speed without scaling unless I'm mistaking...
Click to expand...
Click to collapse
meh, performance is the worst for benchmarking. its such a deceiving name. try either ondemand or interactive. set your cpu speed to be the same high and low.

simms22 said:
meh, performance is the worst for benchmarking. its such a deceiving name. try either ondemand or interactive. set your cpu speed to be the same high and low.
Click to expand...
Click to collapse
Woow, that's a great tip, I now get 22003 points with Matr1x-kernel.

Pihkal said:
Woow, that's a great tip, I now get 22003 points with Matr1x-kernel.
Click to expand...
Click to collapse
better :highfive:

[Q] Hey guys, newbie here, got a question

I am sorry if what im about to ask is already posted somewhere (probably is), but this forum is pretty vast and I couldnt find what im looking for. The question is this, Im using Vanir ROM. Now with the inbuilt kernel I had around 20k benchmark on antutu. I flash hells core, excited to see any difference and whoop, i got 14k. Also i checked the part with 3D testing and fps was higher for about 5-7 points. So what Im asking is this,What is the meaning of this and also how can I, how to put it to not sound noobish, tweak the kernel to perform/save battery etc.?Because Im assuming thats not the top what HellsCore kernel can do, am I right? Or if you guys have any kernels to recommend, all is appreciated. Also if this helps, Im using Nexus 4, Vanir ROM(as posted above) and dont know what else would you need to know to answer.
Thanks in advance
/So I rebooted and now I am on 20840 for some reason.

Benchmarks are not very conclusive abnout anything. Each phone is different each user has different needs and how and where there phone is used. Everyone will tell u to try this kernel and that kernel but u just have to find one that works for you
Sent from my GT-P3110 using Tapatalk

mymeatb18 said:
Benchmarks are not very conclusive abnout anything. Each phone is different each user has different needs and how and where there phone is used. Everyone will tell u to try this kernel and that kernel but u just have to find one that works for you
Sent from my GT-P3110 using Tapatalk
Click to expand...
Click to collapse
I get that, i was more concerned about those numbers. Why did it drop to 14k and then went to 20k again.

Probably some patches were included in the rom's kernel, which can affect the scores.
When you flashed another kernel (helldoctor), you stopped using these patches, so scores went down.
Sent from my NookColor using Tapatalk

Almayce said:
I am sorry if what im about to ask is already posted somewhere (probably is), but this forum is pretty vast and I couldnt find what im looking for. The question is this, Im using Vanir ROM. Now with the inbuilt kernel I had around 20k benchmark on antutu. I flash hells core, excited to see any difference and whoop, i got 14k. Also i checked the part with 3D testing and fps was higher for about 5-7 points. So what Im asking is this,What is the meaning of this and also how can I, how to put it to not sound noobish, tweak the kernel to perform/save battery etc.?Because Im assuming thats not the top what HellsCore kernel can do, am I right? Or if you guys have any kernels to recommend, all is appreciated. Also if this helps, Im using Nexus 4, Vanir ROM(as posted above) and dont know what else would you need to know to answer.
Thanks in advance
/So I rebooted and now I am on 20840 for some reason.
Click to expand...
Click to collapse
Anututu and other benchmarks depend on a number of factors/conditions which affect the final result . The major conditions which affect it result are below
1) The CPU temperature !! When ur phone gets hot the CPU throttle will automatically reduce the active cores and the clock speed to cool down your CPU !! This results in decrease in performance !! When you flash new kernels its possible that ur phone is hot and hence performance decreases
2) Using your phone while running tests also affect the results . for eg if there is a notification during the test or background sync going on it will affect the result
3) probably the kernel packed with vanir had 4 cores active all the time to increase scores and hells core has just 2 cores active ( at a given moment) will mean decreased performance
The ideal way to test kernels is as follows
1) Dirty flash your ROM before flashing kernel
2) Reboot your device after the first boot
3) Let it settle down for an hour
4) turn of data/WiFi during the test
5) see the kernels specs( like cores active/the maximum CPU speed) through an app like trickster/faux clock
6) Now run the test
7) after test let your phone cool down for 15 mins
8) repeat the test a few times and take the average of all scores
Kindly hit the thanks button as a token of appreciation

Antutu was never accurate if you ask me. Sometimes it goes down and the other it went up..so..

I see, thank you guys.

Benchmarks are like putting makeup on.
Sent from my Nexus 4 using Tapatalk

Overclocking S3 Neo

Is it at all possible to overclock my phone I've heard about it but not sure

NutJob_Gaming said:
Is it at all possible to overclock my phone I've heard about it but not sure
Click to expand...
Click to collapse
Yeap, but you to have to flash either a custom rom and kernel, or just a stock based custom kernel.
For example you can flash CM 12.1 and use Renix63's kernel which features CPU overclock, custom governors & I/O schedulers etc. Search the S3 Threads, there's everything to answer any of your questions. If you need help by finding something specific, I can you list you the corresponding threads for unlocking/rooting and a rom&kernel to keep up with the latest progress.

I would not be too excited however, overclock is not really needed on our device, only if you need to run an heavy game

The phone gets pretty hot as it is so I wouldn't do it if I were you.

Excuse me fellas, but I have my phone overclocked without any issues. I'm getting a faster response and I haven't faced any high temp. So, before replying, have it tested, because it seems that you got the answers from the back of your head. He doesn't care if there are problems, you won't prevent him, or better, you dont have the privilege to do so.
Check my signature. @1497Mhz (I had it @1593 for a while), with a great enough battery life, better responsiveness and a cool phone.