Am I the only one that's aware of this? Many devs reccomend apps like setcpu and such, but none support separate governers for dual core or quad core. The app "kernel tuner" does let you change the governor on each core (only two for us), and I've noticed by changing governor with most kernel apps that it only changes the first cores governor. Why is there such a lack in per-core control? I find this should be known to all.
Sent from infamous Galaxy SII X
Interesting...
I thought so too, also most apps that change the kernel frequency only affect the first core as well.
Sent from infamous Galaxy SII X
Not totally true. Most kernels link the two so changing the freq or gov will change it across the board. Also the stock CM/AOSP kernel does this along with the stock based twiz kernels.
But some don't.. And may require a different CPU controller.
Sent from my SGH-T989 using xda app-developers app
PJcastaldo said:
Not totally true. Most kernels link the two so changing the freq or gov will change it across the board. Also the stock CM/AOSP kernel does this along with the stock based twiz kernels.
But some don't.. And may require a different CPU controller.
Sent from my SGH-T989 using xda app-developers app
Click to expand...
Click to collapse
Was only sharing my findings thanks !
Sent from infamous Galaxy SII X
The first core does 90% of the work load anyway, so performance gain would be negligible in the end.
there is no spoon.....
PJcastaldo said:
Not totally true. Most kernels link the two so changing the freq or gov will change it across the board. Also the stock CM/AOSP kernel does this along with the stock based twiz kernels.
But some don't.. And may require a different CPU controller.
Sent from my SGH-T989 using xda app-developers app
Click to expand...
Click to collapse
Agreed, the latest Cerux kernel lists a feature that links the frequencies of both cores automatically. FYI from checking many kernel releases they almost unanimously advise against using different govs on each core citing major performance issues.
But from what I understand you are correct in that some performance management apps would only affect the frequency of one core unless the kernel forces it such as Cerux does.
Related
This is my first rooted device and I'd like to set the CPU frequency higher. I've read that 1600 is moderately safe and 1800 is feasible. After installing setcpu I've realized that CM10's kernel does not allow overclocking. What is the best action to take? Am I out of luck if I want to stick with CM10? Or is there another kernel I can use compatible with CM10? Thanks for reading.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
Try kt kernel in original development, I've used it with great success. Has oc up to 1.89. Also allows you to under volt to save some battery. In conjunction with ktoonz kernel get voltage control from the market to adjust cpu clock and voltages.
Sent from my SGH-I747M using Tapatalk 2
I use Leankernel to go up to 1.9Ghz :good:
Rocket Nine said:
This is my first rooted device and I'd like to set the CPU frequency higher. I've read that 1600 is moderately safe and 1800 is feasible. After installing setcpu I've realized that CM10's kernel does not allow overclocking. What is the best action to take? Am I out of luck if I want to stick with CM10? Or is there another kernel I can use compatible with CM10? Thanks for reading.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
Click to expand...
Click to collapse
Mine has been getting pretty damn hot just at stock clock speeds...you sure you want to do that? CM10 is so fast already!
fortesquieu said:
I use Leankernel to go up to 1.9Ghz :good:
Click to expand...
Click to collapse
Thanks for the suggestion. I used Leankernel all day without a single issue that isn't specific to CM10 right now.
P.S. I also upgraded the modem to I747UCLH1 from this thread. To anyone interested, test your data speed on all three modems to find the best one to keep. My rates doubled with this new modem.
Kt new kernel up. 2.1ghz ktweeker app. Running Sammy version and it's blazin fast.
Sent from my SAMSUNG-SGH-I747 using xda premium
ovwerclock
Hey this might be a bit late on this thread, but Siyah has just released an updated, which works with cm10 and allows for overclocking up to 1600, and undervolting to save on that ole battery... currently for the galaxy s3
Obligatory reminder:
Not all phones are the same. Some tolerate overclock/undervolt better than others. What you WANT your phone to do may not actually be what it WILL do. Start slow, only change one step at a time. I would recommend finding the perfect oc point for your phone, then slowly, slowly working the undervolt into it.
Found this in another forum. Wanted to get exposure to the possibility.
http://forum.xda-developers.com/showpost.php?p=30087853&postcount=2
From another poster: He references using "siyah" kernel in his S3, which appears to be an international version with the same processor as we have. He indicates the need for "stweaks". He talks about GPU "steppings" so I'm not sure if Andrielux has changed these in his kernel. I installed the app "stweaks" but it wouldn't load as it said "no kernel support".
Wow!!! What in the world. Is this for real? I wonder how stable it is. From 440 up to 800?! They are using some app called Stweaks (and the kernel of course) to do it. Love to see that on our Note 2.
And since it seems that the GPU wasn't changed much....from the Galaxy s2 series... "700 Mhz - 1100 mv" is only 75mv higher than the stock 440...and accoring to the forums stable. A 70% increase in speed and stable. This is a must have for any newer kernels.
His kernel does have it. Read the n7100 thread for directions
Sent from my SPH-L900 using xda app-developers app
Rudyblah said:
His kernel does have it. Read the n7100 thread for directions
Sent from my SPH-L900 using xda app-developers app
Click to expand...
Click to collapse
"his kernel". Can you be more specific? Do you have a link to this kernel that we can use on the Sprint GSNII that supports GPU OC?
ZenInsight said:
"his kernel". Can you be more specific? Do you have a link to this kernel that we can use on the Sprint GSNII that supports GPU OC?
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=1927852
It's about 1/3 the way down the OP with a beige arrow and a GPU frequency table. The few paragraphs below explain how to overclock the GPU via adb/terminal.
** Edit: AndreiLux just posted a new update which includes STweaks support.
Perseus kernel supports GPU overclocking now using STweaks. And it FLIES. Wow.
ZenInsight said:
Perseus kernel supports GPU overclocking now using STweaks. And it FLIES. Wow.
Click to expand...
Click to collapse
Stweaks slow overclocking but if you OC it by 100mhz laugh amd giggles numbers. What kind of actual gpu performance are you getting. I see with.stock better real life performance.during.gaming versus his kernel. So if I were to oc just to match stock is pointless to me.
why overheat the gpu when I can get the same performance on stock kernel.
It has to be the way he has it coded. Till it matches stock and further progress dev for it ill step in. I do appreciate his work and time. But for me I need something better than stock. I got this phone for a reason haha.
Sent from my SPH-L900 using xda premium
XxLostSoulxX said:
Stweaks slow overclocking but if you OC it by 100mhz laugh amd giggles numbers. What kind of actual gpu performance are you getting. I see with.stock better real life performance.during.gaming versus his kernel. So if I were to oc just to match stock is pointless to me.
why overheat the gpu when I can get the same performance on stock kernel.
It has to be the way he has it coded. Till it matches stock and further progress dev for it ill step in. I do appreciate his work and time. But for me I need something better than stock. I got this phone for a reason haha.
Sent from my SPH-L900 using xda premium
Click to expand...
Click to collapse
What kind of performance? I beat the Nexus 4 as the highest rating 3D for a GPU in the market on Antutu. And it's noticeably different. Fun for extrme gaming I guess. But it affect the entire speed of the phone too.
Did you try it yet? The kernel is EXCELLENT. Going to donate from my next paycheck to dev. Thanks again.
ZenInsight said:
What kind of performance? I beat the Nexus 4 as the highest rating 3D for a GPU in the market on Antutu. And it's noticeably different. Fun for extrme gaming I guess. But it affect the entire speed of the phone too.
Did you try it yet? The kernel is EXCELLENT. Going to donate from my next paycheck to dev. Thanks again.
Click to expand...
Click to collapse
NFSMW, GTA 3, Heavy Gaming. I noticed it was bleh on the kernel. And stock was virtually amazing no fps in fps either even during benchmark. On his kernel the 3d test for quadrant ghe fps dipped below than 58 which was consistent on stock
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XxLostSoulxX said:
NFSMW, GTA 3, Heavy Gaming. I noticed it was bleh on the kernel. And stock was virtually amazing no fps in fps either even during benchmark. On his kernel the 3d test for quadrant ghe fps dipped below than 58 which was consistent on stock
Sent from my SPH-L900 using xda premium
Click to expand...
Click to collapse
Strange! I'm on Project ROM Ultra lite 1.2. Have you tried N.E.A.K? He said his kernel is set to 700mhz already (no need for STweaks). Can you test that one?
ZenInsight said:
Strange! I'm on Project ROM Ultra lite 1.2. Have you tried N.E.A.K? He said his kernel is set to 700mhz already (no need for STweaks). Can you test that one?
Click to expand...
Click to collapse
Why would I need a kernel to overclock the gpu to match stock gpu clock from stock kernel to get same performance performance. Neak is on the s3 not Note 2 unless he or it in that Rom but still.
I want a custom kernel that can match the GPU performance on the stock kernel without the need of overclocking
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XxLostSoulxX said:
Why would I need a kernel to overclock the gpu to match stock gpu clock from stock kernel to get same performance performance. Neak is on the s3 not Note 2 unless he or it in that Rom but still.
I want a custom kernel that can match the GPU performance on the stock kernel without the need of overclocking
Sent from my SPH-L900 using xda premium
Click to expand...
Click to collapse
Note 2 N.E.A.K.-
http://forum.xda-developers.com/showthread.php?t=2000328
Should we test it? I asked him if it will work on the Sprint version of the Note 2. I can't imagine why it would not.
FYI, STweaks is working for the Perseus kernel as of build 27. My GPU is currently at 733Mhz and I've undervolted all settings by 25 - no issues.
honki24 said:
FYI, STweaks is working for the Perseus kernel as of build 27. My GPU is currently at 733Mhz and I've undervolted all settings by 25 - no issues.
Click to expand...
Click to collapse
Yep. Seems like a very stable kernel to me. But the guy above is saying that the kernel has low framerates compared to stock. I am hoping he will test the Neak kernel out.
ZenInsight said:
Yep. Seems like a very stable kernel to me. But the guy above is saying that the kernel has low framerates compared to stock. I am hoping he will test the Neak kernel out.
Click to expand...
Click to collapse
Sorry but I will not ill be sticking to stock maybe in the future. That kernel seems weird not sure which to choose. And like I said, I don't see the point of downloading a kernel know that will I will basically need to overclock the gpu just to get the same performance as I would on the stock kernel.
Sent from my SPH-L900 using xda premium
Subject: undervolting
Uv values are device specific.
Sent from my i9250
You mean no two galaxy nexus phones can be tuned to the same UV values or it is build specific ?
Sent from my Galaxy Nexus using xda premium
Android addiction said:
You mean no two galaxy nexus phones can be tuned to the same UV values or it is build specific ?
Click to expand...
Click to collapse
Just like desktop hardware, voltage requirements and temperatures at different frequencies will vary device to device. No standard set of undervolting settings will work for every device.
What build would you recommend to achieve optimal battery life and low CPU temps? ROM / kernels / frequencies etc?
Sent from my Galaxy Nexus using xda premium
Android addiction said:
What build would you recommend to achieve optimal battery life and low CPU temps? ROM / kernels / frequencies etc?
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
Cpu temps frequencies and voltage vary from device to device. There is no optimal build.
So do you have some before and after temps and battery stats so people can at least gauge if this is worth it?
Maybe I'm not wording it right. I understand each device may vary. I'm asking for the results of others who have undervolted their galaxay nexus. The Best results they received and what build it was? Even if it may change from device to device there is still a foundation to undervolting.
Sent from my Galaxy Nexus using xda premium
My settings. Stable.
Sent from my Galaxy Nexus using xda premium
How's battery life? I see you are over clocked as well . Under heavy use what is your average CPU temperature at 1.4 ?
Sent from my Galaxy Nexus using xda premium
Android addiction said:
How's battery life? I see you are over clocked as well . Under heavy use what is your average CPU temperature at 1.4 ?
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
Honestly you should just try it and find out yourself. Your phone might not even be able to handle UV. I realize you just joined XDA today but a certain level of self-reliance is to be expected.
063_XOBX said:
Honestly you should just try it and find out yourself. Your phone might not even be able to handle UV. I realize you just joined XDA today but a certain level of self-reliance is to be expected.
Click to expand...
Click to collapse
Well if you read my original post it shows the values at which my Gnex is both underclocked & undervolted , it can handle it. Self- reliance ? I'm not asking for your help or how to UV. Read the post it clearly asks what ones results were, per their specific build. values to a point can be mimicked. Many people have different results. Different builds yield different results.No disrespect intended .
Sent from my Galaxy Nexus using xda premium
Self-reliance was probably poor word choice on my part. What I'm saying is that you can't use the experiences of others for things like this. It requires some experimentation on your part to find out what exactly works best for you. As long as you don't set a new UV setting at boot before you're sure of it's stability there's not really anything that can go wrong.
I understand where you are coming from. I have tried multiple stats ,builds etc. I may be new to the forums but not Linux os . The point of these forums is to get a world wide knowledge perspective. My intentions are to see the best results others have attained with an underclock/ undervolt build. Stats of interest. ROM , kernels , GPU , CPU , UV values and CPU temps .
Sent from my Galaxy Nexus using xda premium
Trial and error is the only sure method to find your optimized minimum stable voltages. The differences in hardware have no correlation to build or manufacture date or anything.
Roms,kernels,CPU values , GPU values, all effect undervolting .
Sent from my Galaxy Nexus using xda premium
Android addiction said:
I understand where you are coming from. I have tried multiple stats ,builds etc. I may be new to the forums but not Linux os . The point of these forums is to get a world wide knowledge perspective. My intentions are to see the best results others have attained with an underclock/ undervolt build. Stats of interest. ROM , kernels , GPU , CPU , UV values and CPU temps .
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
again, not to sound repetitive, but when it comes to voltages and undervolting, every device is different. some device could undervolt 50mV less then the default, some 100-200mV or more, and some cant undervolt at all. undervolting would be per device, there wont be an optimal number for all.
Here is my settings, use it almost two month and no SOD and freeze, pretty stable for me.
Franco r348 192-1228, Xylon v12
Advice: Do some research and try it in your phone, if it stable try lowering it 20-25mV if it freeze reset to your stable voltage. You need sometimes like half until 1 hour to do a research and have a list of your minimum stable voltage. But stable in one kernel doesnt mean it stable in another, cause i cant apply my settings in zen and AK kernel, i have to increase it like 5-10mV. Enjoy playing with voltages
This is one of my favorite part when getting a new phone.
Sent from my Galaxy Nexus using Tapatalk 2
063_XOBX said:
Honestly you should just try it and find out yourself. Your phone might not even be able to handle UV. I realize you just joined XDA today but a certain level of self-reliance is to be expected.
Click to expand...
Click to collapse
Not cool man it's a legitimate question. Don't mind him op.
Sent from my Galaxy Nexus using xda app-developers app
what does the op want, a public UV/OC settings database, by roms, kernels, devices, hell, hardware revisions? The point being?
OP is asking about roms, kernels.... Why? Almost every kernel in here uses the same UV/OC implementation. While some can be different, a different rom or a different kernel won't change how much your device can handle, being it UV or OC. It's running on the SAME hardware!
Talking about comparing with other devices...like you say "ROM , kernels , GPU , CPU , UV values and CPU temps"... these all vary with DEVICE/USER/USAGE.
There's too much data and environment variables to measure UC/OC/UV savings, on a big scale, for something that's so dependent or influenced by something so small.
I come from a Nexus S, most kernels just ran the stock clocks, but as it turns out around here it seems like it's normal for kernels to come overclocked by default.
Is it because it doesn't have any disadvantages on the Galaxy Nexus? Or is there some other motive?
Better performance at the cost of battery life.
Sent from my Galaxy Nexus using xda app-developers app
KaiZ51 said:
I come from a Nexus S, most kernels just ran the stock clocks?
Click to expand...
Click to collapse
I can say for a fact that's not true. I had a NS for over a year and most kernels were OC'd
063_XOBX said:
I can say for a fact that's not true. I had a NS for over a year and most kernels were OC'd
Click to expand...
Click to collapse
Really? Hmm then I guess I'm wrong, I haven't been there in a while... I had my Nexus S stolen some months ago and only purchased my Galaxy Nexus about a month ago.
063_XOBX said:
I can say for a fact that's not true. I had a NS for over a year and most kernels were OC'd
Click to expand...
Click to collapse
Yup.
It was the same when I had mine.
Sent from my Galaxy Nexus using xda premium
Trinity kernel for the nexus s came in many different flavors of cpu speeds, always. i even had my nexus s overclocked to 1.7ghz at one point.
Fair enough, I do have another question though.
Is there anyway I can set the CPU and GPU clocks to stock with a custom kernel, for example Franco's kernel?
I tried it with Trickster MOD and it only allowed me to set the clocks in specific intervals, none of which was the stock CPU frequency.
Not to mention that it doesn't seem like the app allows GPU clocks to be set, only CPU clocks.
KaiZ51 said:
Fair enough, I do have another question though.
Is there anyway I can set the CPU and GPU clocks to stock with a custom kernel, for example Franco's kernel?
I tried it with Trickster MOD and it only allowed me to set the clocks in specific intervals, none of which was the stock CPU frequency.
Not to mention that it doesn't seem like the app allows GPU clocks to be set, only CPU clocks.
Click to expand...
Click to collapse
you can only set the increments that the kernel allows. try the franco kernel app if you are using that kernel.
KaiZ51 said:
Fair enough, I do have another question though.
Is there anyway I can set the CPU and GPU clocks to stock with a custom kernel, for example Franco's kernel?
I tried it with Trickster MOD and it only allowed me to set the clocks in specific intervals, none of which was the stock CPU frequency.
Not to mention that it doesn't seem like the app allows GPU clocks to be set, only CPU clocks.
Click to expand...
Click to collapse
You can't control the GPU clock at all. Either flash one with stock clock speed or live with OC'd GPU. Franco has nightlies for both.
Hello GN2 Users,
So I've recently been playing with my CPU settings and I've been messing with different governors.
My question to you all is which governor do you like to use and why?
I like On Demand because it seems to give me the same performance with better battery life. But this is purely observation. I haven't done any benchmarking to actually test it yet.
Please add your input!
Sent from my SAMSUNG-SGH-I317 using xda premium
i like lulzactive with zen, or powersave with noop
Gladiat0r said:
Hello GN2 Users,
So I've recently been playing with my CPU settings and I've been messing with different governors.
My question to you all is which governor do you like to use and why?
I like On Demand because it seems to give me the same performance with better battery life. But this is purely observation. I haven't done any benchmarking to actually test it yet.
Please add your input!
Sent from my SAMSUNG-SGH-I317 using xda premium
Click to expand...
Click to collapse
Thread will probably be moved but
I havent tried them all but I am a strong believer of ZEN and PEGASUSQ
chousayz said:
Thread will probably be moved but
I havent tried them all but I am a strong believer of ZEN and PEGASUSQ
Click to expand...
Click to collapse
Sorry about that. Where would the proper place for this be?
What do you use to toggle different governors? I use ROM Toolbox Pro, and it doesn't have the ZEN or many of the other Android governors that I've read about. Is there a way to add new governors?
Sent from my SAMSUNG-SGH-I317 using xda premium
Govs are part of your kernel. ..not your control app.
Different roms will contain those kernel governors, or you could find a compatible kernel to go with your current rom....g
Gladiat0r said:
Sorry about that. Where would the proper place for this be?
What do you use to toggle different governors? I use ROM Toolbox Pro, and it doesn't have the ZEN or many of the other Android governors that I've read about. Is there a way to add new governors?
Sent from my SAMSUNG-SGH-I317 using xda premium
Click to expand...
Click to collapse
Just post in Q&A sections.
Yes, not sure if your kernel support it. I use the same app, ROM toolbox pro but you can also give NO FRILLS CPU a try too
CPU Adjuster