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I was browsing the Optimas 2x forum today and ran into an awesome kernel with GPU overclock. which sounds pretty cool to me. also the dev mentioned something about overclocking "system bus" which improvers memory/2D/3D/etc. i think someone in this forum should take a look into this KERNEL and try letting us taste some of this goodness.
Here are the links:
http://forum.xda-developers.com/showthread.php?t=1119771
http://forum.xda-developers.com/showpost.php?p=14654927&postcount=36
while im no genius when it comes to this stuff, somehow i would suspect that people here are already looking into this.
i could be wrong tho lol
pyckvi said:
I was browsing the Optimas 2x forum today and ran into an awesome kernel with GPU overclock. which sounds pretty cool to me. also the dev mentioned something about overclocking "system bus" which improvers memory/2D/3D/etc. i think someone in this forum should take a look into this KERNEL and try letting us taste some of this goodness.
Here are the links:
http://forum.xda-developers.com/showthread.php?t=1119771
http://forum.xda-developers.com/showpost.php?p=14654927&postcount=36
Click to expand...
Click to collapse
The person to ask this to is Morfic. He's all about tweaking bus speeds to improve not only cpu but gpu performance as well. But much of what you've already requested has been incorporated
jlevy73 said:
The person to ask this to is Morfic. He's all about tweaking bus speeds to improve not only cpu but gpu performance as well. But much of what you've already requested has been incorporated
Click to expand...
Click to collapse
But where is he...??
G2X
CPU overclock is something that makes sense for us right now but what would a GPU overclock get us? To me thats just something that will lower the life of our phone with no real reward until games come out that our phone can't run. Right now our phone can run pretty much all games at full speed.
gpu overclocking would be sweet... now my question would be has anyone tried to load Optimas 2x kernel/software on the g2x since they are pretty much the same hardware(in theory you would think it would work)... i might even try to load this kernel onto my phone when i get home from work so if i mess anything up ill have my gear to fix it
crisis187 said:
gpu overclocking would be sweet... now my question would be has anyone tried to load Optimas 2x kernel/software on the g2x since they are pretty much the same hardware(in theory you would think it would work)... i might even try to load this kernel onto my phone when i get home from work so if i mess anything up ill have my gear to fix it
Click to expand...
Click to collapse
Please don't try to load O2x software on your G2x.
pyckvi said:
I was browsing the Optimas 2x forum today and ran into an awesome kernel with GPU overclock. which sounds pretty cool to me. also the dev mentioned something about overclocking "system bus" which improvers memory/2D/3D/etc. i think someone in this forum should take a look into this KERNEL and try letting us taste some of this goodness.
Here are the links:
http://forum.xda-developers.com/showthread.php?t=1119771
http://forum.xda-developers.com/showpost.php?p=14654927&postcount=36
Click to expand...
Click to collapse
I remember reading a while ago that GPU/System bus overclocking was attempted by some kernel dev, then later on, the dev realized through extensive testing that GPU and system bus clocks were locked, the changes to the kernel source had no effect (hardwired). Now this was a few months ago when I was reading up on Tegra kernel development before I got my G2x. Now all these could have been obsolete, and maybe now someone has found a way to do the above via kernel source updates.
Another issue that most people don't mention here and many people have been guilty of, is the GPL issue. The guy who supposedly did this overclocking has not published his kernel source code anywhere (GPL/XDA rules issues), so no one can examine what he did and prove that it worked....
GideonX said:
Please don't try to load O2x software on your G2x.
Click to expand...
Click to collapse
have you tried it yet though is my question
im not worried if i flash a kernel and it doesnt work i can reflash my old kernel if it doesnt work and gets stuck into a bootloop
crisis187 said:
have you tried it yet though is my question
Click to expand...
Click to collapse
Someone in another thread tried this and it messed up their baseband. A restore doesn't fix it apparently.
Big rush dog, the tiamat kernel guru and Guy getting engadet headlines for oc the xoom to 1.7 ghz has gpu oc in his kernels. I will be honest though, I can't tell the difference except maybe video streaming works a little smoother. I personally don't think it is worth the devs time...
Sent from my LG-P999 using XDA App
Howdy! I'm the developer of that kernel
To be honest the GPU overclocks aren't all that beneficial. There is a little bit of a speed bump (I managed to get the highest score on nenamark2 for example). But the difference is was 27fps vs 32fps. If someone is interested in incorporating that into the g2x I'll be happy to show them the changes I've made. I haven't released the source because I'm lazy but there isn't too much to it.
Actually, if you look at the voltKernel sources for the O2X you'll see the same changes there.
chuckhriczko said:
CPU overclock is something that makes sense for us right now but what would a GPU overclock get us? To me thats just something that will lower the life of our phone with no real reward until games come out that our phone can't run. Right now our phone can run pretty much all games at full speed.
Click to expand...
Click to collapse
Yes, superficial benchmarks like quadrant can be pushed to 5400 only with max cpu oc.
However, did you notice how 1.2 thru 1.5 gets you the same fps with no added benefit than more heat created?
Pushing other things other than cpu should let us remove bottlenecks and not tighten them up.
If you want your G2x to life 20yrs, 1.5ghz is not the way to go.
I have no kernel ready for release, to notice changes, I stuck to 1.5ghz, but the final result will be more likely 1.2 or 1.3ghz.
Maybe with a "don't hold my hand, give me freedom or give me death" DBU version at 1.5Ghz later.
I'm not shy to increase vcore on a SoC. But unlike the Nexus S, this thing gets HOT, fast.
Avetny pointed out that thread, I'll see if fallout hit something I have missed so far.
The clocks get compared to chip defaults in many places, choosing the smaller of the two, so it's just tedious replacing them with sane defaults, unless I stick to my current approach of offsets instead of absolutes.
We'll see.
That's also the reason I don't update my kernel often. Right now commits in cm git are only preparatory, config changes that made things smoother I already used.
I'll release something if they finish their version of BLN.
Or if I'm happy with gpu/bus/ram oc/tweaks.
not going to make people flash a kernel for no reason. As jlevy can attest, kernel not following cm git, not even based on it can work very well.
Not having latest cm commit on kernels that take another approach is not always useful.
Especially if we track regressions that cm devs back out later, that's all this gains.
So yes, there will be a gpu oc, when it's ready.
Great!
@ fallout0 thank you i hope that you can help out one of our devs on this.
morfic said:
Yes, superficial benchmarks like quadrant can be pushed to 5400 only with max cpu oc.
However, did you notice how 1.2 thru 1.5 gets you the same fps with no added benefit than more heat created?
Pushing other things other than cpu should let us remove bottlenecks and not tighten them up.
If you want your G2x to life 20yrs, 1.5ghz is not the way to go.
I have no kernel ready for release, to notice changes, I stuck to 1.5ghz, but the final result will be more likely 1.2 or 1.3ghz.
Maybe with a "don't hold my hand, give me freedom or give me death" DBU version at 1.5Ghz later.
I'm not shy to increase vcore on a SoC. But unlike the Nexus S, this thing gets HOT, fast.
Avetny pointed out that thread, I'll see if fallout hit something I have missed so far.
The clocks get compared to chip defaults in many places, choosing the smaller of the two, so it's just tedious replacing them with sane defaults, unless I stick to my current approach of offsets instead of absolutes.
We'll see.
That's also the reason I don't update my kernel often. Right now commits in cm git are only preparatory, config changes that made things smoother I already used.
I'll release something if they finish their version of BLN.
Or if I'm happy with gpu/bus/ram oc/tweaks.
not going to make people flash a kernel for no reason. As jlevy can attest, kernel not following cm git, not even based on it can work very well.
Not having latest cm commit on kernels that take another approach is not always useful.
Especially if we track regressions that cm devs back out later, that's all this gains.
So yes, there will be a gpu oc, when it's ready.
Click to expand...
Click to collapse
thanks morfic i hope everything goes smooth with your kernel, i would love to test it out once u feel it is ready. and thanks for not rushing it.
faux123 said:
I remember reading a while ago that GPU/System bus overclocking was attempted by some kernel dev, then later on, the dev realized through extensive testing that GPU and system bus clocks were locked, the changes to the kernel source had no effect (hardwired). Now this was a few months ago when I was reading up on Tegra kernel development before I got my G2x. Now all these could have been obsolete, and maybe now someone has found a way to do the above via kernel source updates.
Another issue that most people don't mention here and many people have been guilty of, is the GPL issue. The guy who supposedly did this overclocking has not published his kernel source code anywhere (GPL/XDA rules issues), so no one can examine what he did and prove that it worked....
Click to expand...
Click to collapse
You should talk to Fallout0 he seems like he got past the system bus/GPU locked issue. both of you can maybe learn something new from each other. & it would be awesome if the both of you can work on a kernel together.
Wouldn't a higher clocked G2x cause more heat? Heat being the reason this things reboots so often? Maybe a slower G2x is the way to go.
Would overclocking the gpu help run nds4droid any better? What else would ocing the gpu do? Everything seems to be very fast as it is lol
Sent from my LG-P999 using XDA Premium App
dkb218 said:
Wouldn't a higher clocked G2x cause more heat? Heat being the reason this things reboots so often? Maybe a slower G2x is the way to go.
Click to expand...
Click to collapse
Pushing cpu more I don't see useful other than keep up with your buddy's Nexus S' quadrant scores and make sure your hands stay warm in a cold Chicago winter.
I build kernels usually when things stutter or otherwise annoy me. The pushing the OC usually comes by request of those who just want more more more.
I do like to remove bottle necks.
The hardwired clocks. Well the.cpu ones are hardwired too.
The gpu/bus oc works, until boost and throttling kick in, where again values are compared to hardwired values. using offsets after the comparison would be the way around without killing boosting and throttling.
Guess main thing that stopped me is the heat at 1.5ghz, and the frowns over 1.2ghz and 1.3ghz kernels, without further "what else is in there"
Still hoping fallout can share what he/she has, it'll help making this a reality, sooner.
It's tedious. Most of all.
To keep Andrei from going crazy with non-development related questions, I've opened the following thread. That way we keep the development thread for development topics and this for general discussion.
Good deal.
First feature request: Fading in/out LEDs! I've pinged the dev for LightFlow, and while he can implement it on a software level, it would be supremely inefficient and probably drain the battery like crazy.
cmd512 said:
Good deal.
First feature request: Fading in/out LEDs! I've pinged the dev for LightFlow, and while he can implement it on a software level, it would be supremely inefficient and probably drain the battery like crazy.
Click to expand...
Click to collapse
Actually that's something which belongs in the dev thread. If anything you can just post on the issue tracker on Github, I've grown vary of XDA.
There's a new TI LED controller so I can't port the old Philips controls from the old phones. I'll rewrite it eventually but I got other things to do now.
AndreiLux said:
Actually that's something which belongs in the dev thread. If anything you can just post on the issue tracker on Github, I've grown vary of XDA.
There's a new TI LED controller so I can't port the old Philips controls from the old phones. I'll rewrite it eventually but I got other things to do now.
Click to expand...
Click to collapse
Done, posted on Github!
just got my s4 one day ago. rooted immediately, flashed omega7.0 and the latest perseus. did not touch anything on the u/v in stweak. no o/c as well. but the antutu score is so low 21000+, i thought it at least supposed to be 27000+?
i tried adam kernel, had the same result. is that normal? did i miss anything?
astoncheah said:
just got my s4 one day ago. rooted immediately, flashed omega7.0 and the latest perseus. did not touch anything on the u/v in stweak. no o/c as well. but the antutu score is so low 21000+, i thought it at least supposed to be 27000+?
i tried adam kernel, had the same result. is that normal? did i miss anything?
Click to expand...
Click to collapse
Congrats, you win the award for the first post about useless benchmark scores in this thread.
cmd512 said:
Congrats, you win the award for the first post about useless benchmark scores in this thread.
Click to expand...
Click to collapse
thanks for you response. as i mentioned i got it only one day, without touching anything on u/v & o/c. i guess this is considered lower score than the stock one? i merely care about bench mark, i just want to know is this normal? or i need few days to let it settle down? fyi, i tried more than 10 times and it only score between 20k-21k. perhaps you can be kind enough to give me some idea rather than congrats me.
astoncheah said:
thanks for you response. as i mentioned i got it only one day, without touching anything on u/v & o/c. i guess this is considered lower score than the stock one? i merely care about bench mark, i just want to know is this normal? or i need few days to let it settle down? fyi, i tried more than 10 times and it only score between 20k-21k. perhaps you can be kind enough to give me some idea rather than congrats me.
Click to expand...
Click to collapse
It is normal for benchmark to be lower than on stock kernel all devices differ. Following the development of this kernel it has been stated that the kernel is not intended for high benchmarks but more for overall stability, smoothness and better battery life.
Benchmarks is just a number and a high benchmark does not always mean your phone is smooth and performs very well under normal user conditions.
Hope this answers your question and should I be mistaken about anything anyone welcome to rectify me on those points.
Sent from my GT-I9500 using Tapatalk 2
xtacy1 said:
It is normal for benchmark to be lower than on stock kernel all devices differ. Following the development of this kernel it has been stated that the kernel is not intended for high benchmarks but more for overall stability, smoothness and better battery life.
Benchmarks is just a number and a high benchmark does not always mean your phone is smooth and performs very well under normal user conditions.
Hope this answers your question and should I be mistaken about anything anyone welcome to rectify me on those points.
Sent from my GT-I9500 using Tapatalk 2
Click to expand...
Click to collapse
i never meant that perseus is running low on benchmark, in fact, it's the highest between chainfire's cfroot, wanam's adam. i tried all these 3 kernel, all score only between 19k-21k. i just wonder if i have accidentally limited my cpu speed? i will do a factory reset and re-test it.
again, i dont or merely care about benchmark, i just care if my s4 is running normally.
astoncheah said:
i never meant that perseus is running low on benchmark, in fact, it's the highest between chainfire's cfroot, wanam's adam. i tried all these 3 kernel, all score only between 19k-21k. i just wonder if i have accidentally limited my cpu speed? i will do a factory reset and re-test it.
again, i dont or merely care about benchmark, i just care if my s4 is running normally.
Click to expand...
Click to collapse
I have kanged Andrei's response with respect to benchmarks.
Originally Posted by AndreiLux
Samsung cheats during benchmarks by enabling a thermal boost mode which raises the throttling temps by 10°C (90° -> 100°C). I disabled the permissions to this. Practical effects is things like Antutu will give lower scores. This is more realistic of actual performance and I will leave it as such. Benchmark freaks can enable the boost mode manually: /sys/class/thermal/thermal_zone0/boost_mode .
The first throttling speed is 1400MHz and that's why it spends a lot of time there during benchmarking.
Effectively, overclocking on this device makes very little sense unless you can achieve more thermal headroom with undervolting. I personally couldn't get over 1.8GHz on random loads, and couldn't get over 1.7GHz on benchmarking (Antutu 31300).
Nevertheless, the option is there for people who want to stick their phones into their freezers. For everybody else, stop being concerned about numbers.
This seems to affect only a rare number of people and I still don't know the cause. Just cycle the screen once and be done with it.
jlevy73 said:
I have kanged Andrei's response with respect to benchmarks.
Originally Posted by AndreiLux
Samsung cheats during benchmarks by enabling a thermal boost mode which raises the throttling temps by 10°C (90° -> 100°C). I disabled the permissions to this. Practical effects is things like Antutu will give lower scores. This is more realistic of actual performance and I will leave it as such. Benchmark freaks can enable the boost mode manually: /sys/class/thermal/thermal_zone0/boost_mode .
The first throttling speed is 1400MHz and that's why it spends a lot of time there during benchmarking.
Effectively, overclocking on this device makes very little sense unless you can achieve more thermal headroom with undervolting. I personally couldn't get over 1.8GHz on random loads, and couldn't get over 1.7GHz on benchmarking (Antutu 31300).
Nevertheless, the option is there for people who want to stick their phones into their freezers. For everybody else, stop being concerned about numbers.
This seems to affect only a rare number of people and I still don't know the cause. Just cycle the screen once and be done with it.
Click to expand...
Click to collapse
"This seems to affect only a rare number of people and I still don't know the cause" guess i am one of them:silly:
did you guys note the download link for perseus alpha 4 rc1 on andrei github? , dont flash it unless you know whats in there
edit: just flashed it (couldnt resist). based on the newer sources it seems, camera works fine with latest cam firmware
lets wait for Andrei release......build seems to be a release candidate....so its should not be for long....
bala_gamer said:
did you guys note the download link for perseus alpha 4 rc1 on andrei github? , dont flash it unless you know whats in there
edit: just flashed it (couldnt resist). based on the newer sources it seems, camera works fine with latest cam firmware
Click to expand...
Click to collapse
Thanks for sharing bro but i'm too stupid to find the link would you mind sharing more please?:victory:
update: found it: deleted. sorry
astoncheah said:
just got my s4 one day ago. rooted immediately, flashed omega7.0 and the latest perseus. did not touch anything on the u/v in stweak. no o/c as well. but the antutu score is so low 21000+, i thought it at least supposed to be 27000+?
i tried adam kernel, had the same result. is that normal? did i miss anything?
Click to expand...
Click to collapse
I received mine yesterday, rooted, flashed doc rom to remove bloatware, flashed perseus kernel.
I ran a few antutu and I was getting 27-28k without changing any setting.
Sent from my Nexus 4 using xda premium
@GSeeker
Pls remove the link since we dont know the nature of the version or lets wait unitl andrei unveils it.
bala_gamer said:
did you guys note the download link for perseus alpha 4 rc1 on andrei github? , dont flash it unless you know whats in there
edit: just flashed it (couldnt resist). based on the newer sources it seems, camera works fine with latest cam firmware
Click to expand...
Click to collapse
@Power, What rom are you running? I suspect it's rom related.
I'm using omega 7, one of the user experienced the same as mine. Going to flash new rom.
Sent from my GT-I9500 using xda app-developers app
astoncheah said:
just got my s4 one day ago. rooted immediately, flashed omega7.0 and the latest perseus. did not touch anything on the u/v in stweak. no o/c as well. but the antutu score is so low 21000+, i thought it at least supposed to be 27000+?
i tried adam kernel, had the same result. is that normal? did i miss anything?
Click to expand...
Click to collapse
With Omega / Perseus, is your camera still working????
Sent from my GT-I9500 (Hassan Khalid Malik) using xda premium
HassanM said:
With Omega / Perseus, is your camera still working????
Sent from my GT-I9500 (Hassan Khalid Malik) using xda premium
Click to expand...
Click to collapse
From recovery flash Perseus kernel + Camera Fix https://www.dropbox.com/s/20kyqg154h8w198/camera-ISP-fw.MEAplusFix.zip
Then reboot. Your camera should be working.
What exactly do i get if i will flash custom kernel to my hammerhead ? What do they provide to make it noticeable to an user ?
m4nu4l said:
What exactly do i get if i will flash custom kernel to my hammerhead ? What do they provide to make it noticeable to an user ?
Click to expand...
Click to collapse
Custom kernels provide improvements, tweaks and more power to the user.
Some provide patches to use certain mods... E.g. Multirom patched kernels
Others allow your phone to be overclocked and undervolted. (Both CPU & GPU)
Some just save more battery than others, some have display tweaks included allowing the user to copy Samsung's saturated screens or even lower saturation.
Remember, not all kernels are compatible with all roms.
Read on the bases of the roms and kernel compatibility!
Happy flashing and good luck!
Valdorous said:
Custom kernels provide improvements, tweaks and more power to the user.
Some provide patches to use certain mods... E.g. Multirom patched kernels
Others allow your phone to be overclocked and undervolted. (Both CPU & GPU)
Some just save more battery than others, some have display tweaks included allowing the user to copy Samsung's saturated screens or even lower saturation.
Remember, not all kernels are compatible with all roms.
Read on the bases of the roms and kernel compatibility!
Happy flashing and good luck!
Click to expand...
Click to collapse
Thanks for the explanation, feels like i'm not the guy who would need to overclock my nexus 5, its fast enough for me out of the box. Multi-rom sounds attracting tho.
Stock kernel works just fine
Sent from my Nexus 5 using XDA Premium 4 mobile app
m4nu4l said:
Thanks for the explanation, feels like i'm not the guy who would need to overclock my nexus 5, its fast enough for me out of the box. Multi-rom sounds attracting tho.
Click to expand...
Click to collapse
One thing I forgot to mention are also the sound tweaks!
There are a LOT out there that are really good, although the App Viper4Android will always reign superior!
I do recommend you have a look at some of the kernels.
You can get 150% out of your battery with the right rom/kernel combo and probably more if you sacrifice some performance.
Just saying it's something a lot of people don't experiment with, I personally am a flash-aholic and need to flash new kernels and roms every other day!
Valdorous said:
I do recommend you have a look at some of the kernels.
You can get 150% out of your battery with the right rom/kernel combo and probably more if you sacrifice some performance.
Click to expand...
Click to collapse
not true.
battery life is dependant on how you personally use your phone, how you set it up, what apps you use, and the quality of your phone/data connection. everything else, including kernels, play a very minor role in battery.
simms22 said:
not true.
battery life is dependant on how you personally use your phone, how you set it up, what apps you use, and the quality of your phone/data connection. everything else, including kernels, play a very minor role in battery.
Click to expand...
Click to collapse
Not necessarily, depending on the govenor (that comes with the kernel) your phone can idle better and some kernels have adjustments to the LMK (LowMemoryKiller) which handles background apps differently.
So in my opinion with the same usage and different handling of background apps, including undervolting and a battery saving governor.
You could easily hit 150% of the usual battery life,
Kernels play in that matter a HUGE role.
You could even throw in some display tweaks (in the battery's favour).
Valdorous said:
Not necessarily, depending on the govenor (that comes with the kernel) your phone can idle better and some kernels have adjustments to the LMK (LowMemoryKiller) which handles background apps differently.
So in my opinion with the same usage and different handling of background apps, including undervolting and a battery saving governor.
You could easily hit 150% of the usual battery life,
Kernels play in that matter a HUGE role.
You could even throw in some display tweaks (in the battery's favour).
Click to expand...
Click to collapse
first off, your "battery saving" govornor doesnt exist. it would depend on exactly what you are doing with the phone. the governor doesnt save battery, it tells your cpu how to behave with the incoming need. and they dont control how your phone idle. i use ondemand, and i doubt many phones idle better than mine.
undervolting DOES NOT save you battery, it can even use more than if not undervolted. the only benefit you will get from undervolting is a little less heat.
and again, kernels do not play a role in battery. if they did, every single person would be using the same battery saving kernel. but we are not. with every single kernel someone will have great battery, and someome will have terrible battery. that's because how ypu use it and your quality phone/data connection pre-decides what your battery will be like.
what you are believing are rumors. stuff people dont really know much about, but still keep repeating the non truth over and over. in reality, kernels have almost no influence in battery.
and btw, everything you can control with a custom kernel, you can with the stock kernel. and people get just as great battery on stock than on a custom kernel.
and yes, i do know what im talking about, ive been part of trinity kernel for 5 years now. and ive helped thousands with android and android related issues, including battery.
simms22 said:
first off, your "battery saving" govornor doesnt exist. it would depend on exactly what you are doing with the phone. the governor doesnt save battery, it tells your cpu how to behave with the incoming need. and they dont control how your phone idle. i use ondemand, and i doubt many phones idle better than mine.
undervolting DOES NOT save you battery, it can even use more than if not undervolted. the only benefit you will get from undervolting is a little less heat.
and again, kernels do not play a role in battery. if they did, every single person would be using the same battery saving kernel. but we are not. with every single kernel someone will have great battery, and someome will have terrible battery. that's because how ypu use it and your quality phone/data connection pre-decides what your battery will be like.
what you are believing are rumors. stuff people dont really know much about, but still keep repeating the non truth over and over. in reality, kernels have almost no influence in battery.
and btw, everything you can control with a custom kernel, you can with the stock kernel. and people get just as great battery on stock than on a custom kernel.
and yes, i do know what im talking about, ive been part of trinity kernel for 5 years now. and ive helped thousands with android and android related issues, including battery.
Click to expand...
Click to collapse
I know and have used your kernel.
If you noticed I said "In my opinion". No reason to get aggressive.
I have noticed something else.
And thought it worth sharing.
If I've offended you, I apologize.
Valdorous said:
I know and have used your kernel.
If you noticed I said "In my opinion". No reason to get aggressive.
I have noticed something else.
And thought it worth sharing.
If I've offended you, I apologize.
Click to expand...
Click to collapse
oh gosh, please dont apologize. i also meant no offence to you.
its not you i am aggressive with btw, its that false info that just wont die. i had still many people do, but its not as bad as before. you dont need to wipe anything when flashing kernels. but, many people used to insist that its a must. i spent a lot of time fighting that falsehood, now i dont see it as much. its the same about battery. if there was a "magic" pill, everyone would be using it. but just as many people using any random kernel will get great battery life on a "battery" saving kernel, and just as many people will get bad battery life as well.
please, again, i didnt mean offence. im just trying to pass the truth around, thats all. its just that this kind of thing isnt an opinion, there is a truth and a false here. id never go against any persons opinion if it was just about opinion.
Yeah....at best....just changing from one kernel to another MAY affect your battery about 5 to 10 percent one way or the other. In other words.....the direct affect on battery is minimal.
The biggest myth in the threads are that rom/kernel combos make big differences in battery life.
Simply put, they don't.
And everything @simms22 said. ?
---------- Post added at 07:59 PM ---------- Previous post was at 07:57 PM ----------
And in modern devices anyway....undervolting does nothing but keep heat down a bit.....and under clocking has an extremely minor affect as well.
Don't believe, try it and see. ?
I get the same battery life on any ROM....any kernel.
You can make your own ultra powersaving mode or your own hyper performance mode...
I'm just using custom kernel for gamma control, s2w/s2s (which is very useful for me when reading some articles on Chrome), also for USB OTG mounting. Oh oh, and also for killing time, you know messing up with frequency and stuff lol
Well, personally I never believe about the effect on battery life by using this or that kernel since there are lots of things that can affect your battery life, and for my case data connection is the battery killer :angel:
What are you guys talking about??. No, I'm not a kernel dev BUT I have tried so many ROM's and kernels on different devices for a long time now and by experience I can say that they DO influence battery life. I have seen %~50 increase (compared to stock) and aso have experienced just 4 hours of battery because a buggy kernel patch.
They're not placebo when your device start to last 19 hours instead of just 13 like it did since you bought It.
lovetatfitties said:
What are you guys talking about??. No, I'm not a kernel dev BUT I have tried so many ROM's and kernels on different devices for a long time now and by experience I can say that they DO influence battery life. I have seen %~50 increase (compared to stock) and aso have experienced just 4 hours of battery because a buggy kernel patch.
They're not placebo when your device start to last 19 hours instead of just 13 like it did since you bought It.
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your cpu is set up differently with the custom kernel. thats why. its not the kernel itself. you can set up your cpu on stock so itll be like the custom kernel. its very easy if you are familiar with a few scripts and the root filesystems. for example, i run trinity kernel. with the way trinity kernel sets up my cpu, i get better than stock kernel in battery. trinity set my cpu to run all four cores always on, no hotplugging. it also disables mpdecision. i can set up the stock kernel that way as well. i can do it using a root file explorer, manually, or i can do it via script. and i do know people that run the stock kernel that just get fabulous battery life.
---------- Post added at 10:21 PM ---------- Previous post was at 09:55 PM ----------
there are things that you can do with kernel control apps as well.
Sometimes when you flash a kernel...and many times we flash a ROM right before.....you are only getting rid of a battery issue you previously had before you flashed. So with the clean start, of course you're battery will be much better (especially if you had an unfixed or unnoticed issue before)....and sorry to put it this way, but don't know how else to put it....but the less knowledgeable people think its the new kernel that's made such a huge. Pretty much all the most experienced people know kernels don't make a very big difference to battery life. You can flash clean stock with stock kernel and see a huge gain too if you had an issue before.
Test it yourselves. Flash your favorite ROM and some kernel one day. Go a few battery cycles without changing much or installing much. Then flash the same ROM and another kernel. Same changes and same few apps. And so on...
Eventually you'll get the point.
KJ said:
Sometimes when you flash a kernel...and many times we flash a ROM right before.....you are only getting rid of a battery issue you previously had before you flashed. So with the clean start, of course you're battery will be much better (especially if you had an unfixed or unnoticed issue before)....and sorry to put it this way, but don't know how else to put it....but the less knowledgeable people think its the new kernel that's made such a huge. Pretty much all the most experienced people know kernels don't make a very big difference to battery life. You can flash clean stock with stock kernel and see a huge gain too if you had an issue before.
Test it yourselves. Flash your favorite ROM and some kernel one day. Go a few battery cycles without changing much or installing much. Then flash the same ROM and another kernel. Same changes and same few apps. And so on...
Eventually you'll get the point.
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That right!
It's all about how you feel about your devices.
simms22 said:
your cpu is set up differently with the custom kernel. thats why. its not the kernel itself. you can set up your cpu on stock so itll be like the custom kernel. its very easy if you are familiar with a few scripts and the root filesystems. for example, i run trinity kernel. with the way trinity kernel sets up my cpu, i get better than stock kernel in battery. trinity set my cpu to run all four cores always on, no hotplugging. it also disables mpdecision. i can set up the stock kernel that way as well. i can do it using a root file explorer, manually, or i can do it via script. and i do know people that run the stock kernel that just get fabulous battery life.
---------- Post added at 10:21 PM ---------- Previous post was at 09:55 PM ----------
there are things that you can do with kernel control apps as well.
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Ok man whatever, I don't like to argue about the color of the sky so.. Yeah..
Also, I think you should e-mail all the kernel devs and tell them that they're full of bs and that they all are wasting their time improving nothing. You should try to reach Linus Torvalds and tell him that he has to stop developing worthless software, that we all can mod our systems the way we want'em to behave and that we don't need support for newer technology. :good:
lovetatfitties said:
Ok man whatever, I don't like to argue about the color of the sky so.. Yeah..
Also, I think you should e-mail all the kernel devs and tell them that they're full of bs and that they all are wasting their time improving nothing. You should try to reach Linus Torvalds and tell him that he has to stop developing worthless software, that we all can mod our systems the way we want'em to behave and that we don't need support for newer technology. :good:
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It's a good job YOU know what you're talking about, otherwise this thread would have been worthless
The point is you can do some customizations with custom kernels. Gamma control, usb fast charge, etc etc.
But battery life? I never see the difference even with the similar usage that I always do every single day, really, I'm living in Indonesia and the data connection is the battery killer that makes me swearing aaaaall the time lol
I have tried that kernel this kernel (except caf kernel), you name it, but still nothing different, except each of them has their own characteristics.
My own solution? I bought a powerbank, that's my magic pill when my phone is out of battery.
Please, don't think I'm bashing kernel devs out there, they do fantastic job with their creations and I hope they don't stop doing that, I myself using ElementalX, because I need the features that the dev offers to user like me.
Sorry if my English is that bad :/
lovetatfitties said:
Ok man whatever, I don't like to argue about the color of the sky so.. Yeah..
Also, I think you should e-mail all the kernel devs and tell them that they're full of bs and that they all are wasting their time improving nothing. You should try to reach Linus Torvalds and tell him that he has to stop developing worthless software, that we all can mod our systems the way we want'em to behave and that we don't need support for newer technology. :good:
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Sent from my Nexus 5 using Tapatalk
I've been using the nexus for a while, and although I like the stock rom, is CM11 better? Or any other rom in fact? And I guess when I say better I generally mean performance and possibly battery life? Would a kernal also affect this?
Sorry if I seem naive or anything. Recently switched from an ATT S4 with all its bootloaders and such..
"Best" ROM.
There is no such thing as a best ROM. The question itself is ambiguous. "Best" is obviously a subjective term.
What I want from a ROM may well differ from what you want from a ROM, ergo - what is best for me could be worst for you.
If you are asking what the most popular ROMs are, or which ROMs people are using, you can see which threads stay around on the first few pages (and have the most posts) in the Android Development or Original Android Development forums. You can also see what other people are running by reading the What are you running on your Nexus 5 thread.
If you are asking which is the most stable, being a Nexus device - they're all pretty stable.
If you are asking which is best on Battery, ROMs only affect battery if they have a feature that is badly coded. You will likely be able to read about this in the ROM threads. ROMs do not impact battery life. The only impact to battery life are your apps, your settings, how you use the phone and mostly, environmental issues such as Phone Signal.
For tips about improving battery life, please read [Battery Life Help] Troubleshoot battery issues here!
"Best" Kernel
Also, please note that as above, "best" is still subjective. What we all want from a kernel is different. Again, many people have the misconception that Kernels affect battery life. Let's get this cleared up. Although Kernel devs will build in optimisations and efficiencies that will improve battery life, these are very, VERY tiny...and if 1 kernel has these optimisations, they likely all have.
People will often say "Kernel x is better than kernel y for battery life". This is actually wrong. Kernels respond to user settings. Setting up the governor to favour either battery life or performance is simple enough to do, you just have to do some learning. The reason people think Kernel x is better than y is because developers set their kernels up with their preferred governor settings. This is what we refer to as out-of-the-box settings. The out-of-the-box settings for kernel x may well produce better battery results than the out-of-the-box settings for kernel y, which favour performance. The fact is, you as the user have the ability to tune kernel x or y to perform the same, be that battery or performance - so start learning how to do this yourselves - that way, you can choose the kernel based on the FEATURES you want, and not the fictional performance benefits of one kernel over another.
Hope this helps
The biggest thing is some of the customizations you can get with something like Xposed. A kernel might change things. You can always make a backup.
Sent from my Nexus 5 using XDA Free mobile app
@rootSU you should backup this answer to your clipboard and paste it again & again
Primokorn said:
@rootSU you should backup this answer to your clipboard and paste it again & again
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I did. I wrote it and added it to both evernote and "clipboard admin"
rootSU said:
I did. I wrote it and added it to both evernote and "clipboard admin"
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You should add the following to the end:
[THREAD CLOSED]
CM and other ROMs that have SuperSU baked into the system (as opposed to have it installed as an app that shows up in the app drawer) can have difficulties with apps that won't work due to being rooted, and often times the apps you can use to temporarily block/hide root access won't work properly with SuperSU baked in. That's the big reason why I stopped using them. It's simpler to just root stock Android and use xposed modules that can replicate 95% of what CM brings to the table.
rootSU said:
"Best" ROM.
There is no such thing as a best ROM. The question itself is ambiguous. "Best" is obviously a subjective term.
What I want from a ROM may well differ from what you want from a ROM, ergo - what is best for me could be worst for you.
If you are asking what the most popular ROMs are, or which ROMs people are using, you can see which threads stay around on the first few pages (and have the most posts) in the Android Development or Original Android Development forums. You can also see what other people are running by reading the What are you running on your Nexus 5 thread.
If you are asking which is the most stable, being a Nexus device - they're all pretty stable.
If you are asking which is best on Battery, ROMs only affect battery if they have a feature that is badly coded. You will likely be able to read about this in the ROM threads. ROMs do not impact battery life. The only impact to battery life are your apps, your settings, how you use the phone and mostly, environmental issues such as Phone Signal.
For tips about improving battery life, please read [Battery Life Help] Troubleshoot battery issues here!
"Best" Kernel
Also, please note that as above, "best" is still subjective. What we all want from a kernel is different. Again, many people have the misconception that Kernels affect battery life. Let's get this cleared up. Although Kernel devs will build in optimisations and efficiencies that will improve battery life, these are very, VERY tiny...and if 1 kernel has these optimisations, they likely all have.
People will often say "Kernel x is better than kernel y for battery life". This is actually wrong. Kernels respond to user settings. Setting up the governor to favour either battery life or performance is simple enough to do, you just have to do some learning. The reason people think Kernel x is better than y is because developers set their kernels up with their preferred governor settings. This is what we refer to as out-of-the-box settings. The out-of-the-box settings for kernel x may well produce better battery results than the out-of-the-box settings for kernel y, which favour performance. The fact is, you as the user have the ability to tune kernel x or y to perform the same, be that battery or performance - so start learning how to do this yourselves - that way, you can choose the kernel based on the FEATURES you want, and not the fictional performance benefits of one kernel over another.
Hope this helps
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an absolutely wonderful reply!
simms22 said:
an absolutely wonderful reply!
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As long as someone takes.something away from it, I've done my job
Sent from my Nexus 5 using Tapatalk
Hy friends I'm coming from note 3 and I've searched but can't decide what kernel is best for sound and battery I'm not interested in games or something else .I have to say this is so much better that crap touchwiz but on note 3 the battery was good and faux sound rocks .thanks all and appreciate the opinions .overall happy with the decision this is so much better than samsung
mr.joshuanice said:
Hy friends I'm coming from note 3 and I've searched but can't decide what kernel is best for sound and battery I'm not interested in games or something else .I have to say this is so much better that crap touchwiz but on note 3 the battery was good and faux sound rocks .thanks all and appreciate the opinions .overall happy with the decision this is so much better than samsung
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kernel wont really help with battery. battery life is all about how you personally use your device, how you personally set it up, what apps you choose to install, and very much the quality of your phone/data signal. all other things are very minor when it comes to battery, including kernel.
This is getting repetitive.
Lethargy said:
This is getting repetitive.
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If only I had a stock answer saved in my ever notes, that I could just paste in every time.
Oh.... Wait....
"Best" ROM.
There is no such thing as a best ROM.* The question itself is*ambiguous.* "Best" is obviously a subjective term.
What I want from a ROM may well differ from what you want from a ROM,*ergo - what is best for me could be worst for you.
If you are asking what the most popular ROMs are, or which ROMs people*are using, you can see which threads stay around on the first few*pages (and have the most posts) in the*Android*Development or*Original*Android Development forums. You can also see what other people*are running by reading the*What*are you running on your Nexus 5 thread.
If you are asking which is the most stable, being a Nexus device -*they're all pretty stable.
If you are asking which is best on Battery, ROMs only affect battery*if they have a feature that is badly coded.* You will likely be able*to read about this in the ROM threads.* ROMs do not impact battery*life.* The only impact to battery life are your apps, your settings,*how you use the phone and mostly, environmental issues such as Phone*Signal.
For tips about improving battery life, please read*[Battery*Life Help] Troubleshoot battery issues here!
"Best" Kernel
Also, please note that as above, "best" is still subjective.* What we*all want from a kernel is different. Again, many people have the*misconception that Kernels affect battery life.* Let's get this*cleared up.* Although Kernel devs will build in optimisations and*efficiencies that will improve battery life, these are very, VERY*tiny...and if 1 kernel has these optimisations, they likely all have.
People will often say "Kernel x is better than kernel y for battery*life".* This is actually wrong. *Kernels respond to user settings.*Setting up the governor to favour either battery life or performance*is simple enough to do, you just have to do some learning.* The reason*people think Kernel x is better than y is because developers set their*kernels up with their preferred governor settings.* This is what we*refer to as out-of-the-box settings.* The out-of-the-box settings for*kernel x may well produce better battery results than the*out-of-the-box settings for kernel y, which favour performance.* The*fact is, you as the user have the ability to tune kernel x or y to*perform the same, be that battery or performance - so start learning*how to do this yourselves - that way, you can choose the kernel based*on the FEATURES you want, and not the fictional performance benefits*of one kernel over another.
Hope this helps
Sent from my Nexus 5 using Tapatalk
As for sound, check out Viper4Android.
Thanks all for opinions rooted and flashed elementalx kernel so far happy with sound
mr.joshuanice said:
Thanks all for opinions rooted and flashed elementalx kernel so far happy with sound
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Try ViPER4Android as suggested. You will notice a damned difference!
Primokorn said:
Try ViPER4Android as suggested. You will notice a damned difference!
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I have installed fauxsound app and viper4android
mr.joshuanice said:
I have installed fauxsound app and viper4android
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Use one or the other. You will cause conflicts otherwise. My bet is on Viper.
No conflicts I use fauxsound with quality and viper4android for the rest of the settings the only thing is that I'm using the driver from viper but no problem sound is great I feel that soundstage is better than what I had with note 3
PS : any opinions on sound on lollipop I know that on l we have support for 24bit 192 kHz
mr.joshuanice said:
No conflicts I use fauxsound with quality and viper4android for the rest of the settings the only thing is that I'm using the driver from viper but no problem sound is great I feel that soundstage is better than what I had with note 3
PS : any opinions on sound on lollipop I know that on l we have support for 24bit 192 kHz
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You can't possibly know if you're getting conflicts or not. ...but you will be. Use one or the other, or you may find excessive battery drain. good luck!
Thanks I will remove faux app