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Hi, I've just managed to get my SGTab running on Overcome 1.4.5, very happy with the performance.
Wanted to check out SetCPU and Voltage Control and its hard to get some decent info for recommended settings, I'm a n00b at this rooting/custom ROM business (still running a stock nexus one lol, didn't want to risk tinkering with my phone but tablet is classed as nonessential so I dived right in).
- what is the recommended scheduler in voltage control?
- is setcpu needed if all you want to do is undervolt (for battery life)?
- what undervolt is 'safe'?
Right now I'm not running setcpu, and I'm undervolting by 100mhz in all categories (is that correct?) using CFQ scheduler (which I'm guessing is the linux completely fair queue scheduler?). Seems to be working OK after 10 minutes testing LOL but are there any in depth guides to this OC/undervolting?
http://forum.xda-developers.com/showthread.php?t=885988
Please read the MOD EDIT of first post ty
My experience
I am currently using No Frills CPU to overclock to 1400.
Somepeople on the forum have then undervolted by -200 across all speeds, but I am working up slowly and have so far got to -100 across the board with no problems at all.
In any event, the general opinion seems to be that each tab can be very different due to production variances, so it only rule seems to be test for yourself.
Good luck
This is the wrong section but it you read the overcome section just two days ago this question was discussed.
I've written a hopefully comprehensive guide on this, and many other tweaks,which you should be able to get on the first post on the Overcome thread.
Please note that it's not appropriate to create such a thread in the development section of this forum. Next time, you should post such questions in the appropriate sections such as the general or the Q&A section, or ask in the Overcome thread itself. Let's not clutter the Dev section with such posts?
Sent from my GT-P1000 using XDA App
I had my xperia T for two weeks now and there is a major problem with my device its the batter I have major battery drain with my xperia T plz help me fix these problem and I haven't rooted it or unlocked.
Sorry for my bad English
Please start by posting in the correct sections of the forum. Your thread is a question to which you ticked the "Is this a question" box when creating the thread so you should therefore post it in the Q&A section. Please post in the correct sections going forward.
Thanks
AvRS
i had you same issue... just root your XT and change to ondemand governor
no overheat, no thermal throttle, smoother, much more battery life..
I thought ondemand was a stock governor.
Correct me if wrong.
gregbradley said:
I thought ondemand was a custom governor.
Correct me if wrong.
Click to expand...
Click to collapse
No, on demand is available from stock. There are a few governors actually.
Msm-dscv, on demand, userspace, powersave and performance.
Also a few I/O schedulers. Namely: noop, deadline and cfq.
Changing to on demand ready made the device smoother imo.
drigerott said:
i had you same issue... just root your XT and change to ondemand governor
no overheat, no thermal throttle, smoother, much more battery life..
Click to expand...
Click to collapse
Thermal throttling is there, but less noticeable.
Did I help? Then please don't forget to press the thanks button.
Is your question solved? Then mark your question solved in your title.
Sent from my Xperia T using XDA Premium.
drigerott said:
i had you same issue... just root your XT and change to ondemand governor
no overheat, no thermal throttle, smoother, much more battery life..
Click to expand...
Click to collapse
I will try to root thanks
crazymister said:
No, on demand is available from stock. There are a few governors actually.
Msm-dscv, on demand, userspace, powersave and performance.
Also a few I/O schedulers. Namely: noop, deadline and cfq.
Changing to on demand ready made the device smoother imo.
.
Click to expand...
Click to collapse
I meant to type stock, not custom...d'oh...but that means there is no need to root to enable it.
The post i quoted said to root then enable on demand. If it is stock governoer there is no need to root.
hey guys, id like to know whats the best kernel for you, anche which combination you use governors + i/o schedulers thanks in advance!!
FOR ME its varun's thunderzap kernel using ondemand with i/o noop
Sent from my GT-I9070 using xda premium
could u tell me why its the best? what do u find in terms of performance that the others doesnt have?
For me: siri kernel. Very fast and smooth. But not pegasusq governor and cwm
Sent from my GT-I9070 using Tapatalk 2
Одг: what's the best kernel? what do you use?
Best way to know what is best is to try yourself. Performance is a bit subjective feel. Trying published kernels will not make your phone explode. And it is not hard to install it. And changing governors is not hard too, just find combination that fits you. You have them explained on this forum, just need to search a bit.
I personaly like PegasusQ for governot and SIO for schaduler. Or Interactive governor is ok too.
Sent from Galaxy S Advance
shut_down said:
Best way to know what is best is to try yourself. Performance is a bit subjective feel. Trying published kernels will not make your phone explode. And it is not hard to install it. And changing governors is not hard too, just find combination that fits you. You have them explained on this forum, just need to search a bit.
I personaly like PegasusQ for governot and SIO for schaduler. Or Interactive governor is ok too.
Sent from Galaxy S Advance
Click to expand...
Click to collapse
which one u use?
At this moment, to me better kernel is Siri. Its fast and smooth. Only things what I miss there is PegasusQ governor and CWM.On other way Thunderzap is also fast, but in my opinion siri is faster. I know that in next release Varun will release much smoother and faster kernel so then i will vote for it
Try with thunderzap+smatstassV2+sio is the best configuration for me.
it also depends on your behaviour what are you using your phone for?
Gaming
Much Browsing
Phoning/Messaging/Chatting/Listening Music
Siri Kernel.
It's fast and stable.
For me the best on jb is siri. On thunderzap v2.0 and 2.5 i have screen flicker, and tochscreen was crazy
Totally satisfied with thunderzap 2.5
But only experimented "with chuck-bean master rom V3".
with a thread like this you offend the developers... the policy of xda is to try it yourself, what may be perfect for me will not suite another person
Одг: what's the best kernel? what do you use?
petraru1 said:
with a thread like this you offend the developers... the policy of xda is to try it yourself, what may be perfect for me will not suite another person
Click to expand...
Click to collapse
+1
And there are no 100 kernels, so it is hard to see what suite you best.
Sent from Galaxy S Advance
shut_down said:
+1
And there are no 100 kernels, so it is hard to see what suite you best.
Sent from Galaxy S Advance
Click to expand...
Click to collapse
yep... there are only 2 kernels for jb and both varun.chitre15 and Adi_Pat are awsome developers so you can`t go wrong
on my old LG optimus one i was flashing ROM`s every 2 days, my friends said that i am crazy... but by trying myself i have discovered some amazing works... and now my father owns it with the latest CM 10
petraru1 said:
yep... there are only 2 kernels for jb and both varun.chitre15 and Adi_Pat are awsome developers so you can`t go wrong
on my old LG optimus one i was flashing ROM`s every 2 days, my friends said that i am crazy... but by trying myself i have discovered some amazing works... and now my father owns it with the latest CM 10
Click to expand...
Click to collapse
dude, trust me when i say ive tried a lot of rom so far on my other devices. but im asking bout the kernel cause i have never really understood something about the governors and the schedulers, thats why
Одг: what's the best kernel? what do you use?
ldmauro said:
dude, trust me when i say ive tried a lot of rom so far on my other devices. but im asking bout the kernel cause i have never really understood something about the governors and the schedulers, thats why
Click to expand...
Click to collapse
Just type governors in search box of xda. It will come out. There are enough explanations about it here.
Sent from Galaxy S Advance
Just type governors in search box of xda. It will come out. There are enough explanations about it here.
Click to expand...
Click to collapse
oh then how can i zipalign my rom?
AW: what's the best kernel? what do you use?
Take a look at this or try searching
http://forum.xda-developers.com/showthread.php?p=36608251
Sent from my GT-I9070 using xda app-developers app
Hi guys,
I am not new to using custom ROMs but I would like to understand a bit more about optimizing my beautiful phone to my needs.
I am running the latest stable CM and just today flashed Iodak kernel 0.7
I understand with using Trickster MOD I can do a lot tweaking - but I don't understand most of what I can do there and whether it would actually make things "better" for me.
Here's my request:
Can you tell me how I should set parameters in Trickster and explain at least in short why?
I do not game on my phone, I use it mostly for social interaction and navigation, therefore I suppose I don't need max power, I am rather interested in good battery times while not loosing the smoothness of use.
Thanks in advance.
netwolff said:
Hi guys,
I am not new to using custom ROMs but I would like to understand a bit more about optimizing my beautiful phone to my needs.
I am running the latest stable CM and just today flashed Iodak kernel 0.7
I understand with using Trickster MOD I can do a lot tweaking - but I don't understand most of what I can do there and whether it would actually make things "better" for me.
Here's my request:
Can you tell me how I should set parameters in Trickster and explain at least in short why?
I do not game on my phone, I use it mostly for social interaction and navigation, therefore I suppose I don't need max power, I am rather interested in good battery times while not loosing the smoothness of use.
Thanks in advance.
Click to expand...
Click to collapse
Your needs is same as mine...What ive done using trickster mod is changed Governor/Scheduler..On SmartDimmer, Disable FSync, Undervolt all frequency...As undervolting values varies with your usage...As mine, i lower down most of the freq above 1000Mhz and below that freq, i undervolt as medium value as i can, to be exact, 25mv each...
As Governor, read up about each governor behavior and find the one that most suited you, same as Scheduler...
I'd prefer Interactive+Sio...Hope this helps
This is not the Q&A section...
Sent from my smart frying pan (Tegra 3)
@non4 said:
This is not the Q&A section...
Sent from my smart frying pan (Tegra 3)
Click to expand...
Click to collapse
True, but the description was "general chat, tips & tricks, etc" and I thought that pretty much hit it.
Sorry if I thought wrongly.
netwolff said:
True, but the description was "general chat, tips & tricks, etc" and I thought that pretty much hit it.
Sorry if I thought wrongly.
Click to expand...
Click to collapse
If you have a question, always in Q&A if its a small rom/kernel issue or bug report that's usually wecome on the respective thread as long as its relevant
Sent from my smart frying pan (Tegra 3)
Q&A for [KERNEL]Forest-CM11 (V5 with OC CPU-GPU)
Some developers prefer that questions remain separate from their main development thread to help keep things organized. Placing your question within this thread will increase its chances of being answered by a member of the community or by the developer. Thanks for understanding and for helping to keep XDA neat and tidy! :smile:
Any updates?
hello i am using your kernel now for some month and it was really nice. but since some months there is no progress here. are you working on it anymore? an update would be nice after over 3 months now. I would have really some "good" additions und suggestions for the kernel. Furthermore, philz touch has a new version out. would be really nice if you could update it to the latest version. the cwm integrated to the cm11 stock kernel now is newer as the base of your last released forest kernel. Also some here have deep sleep problems. Also it would be nice if you could look for sabermod/Linaro und archi optimizations or -03 optimization of the kernel in general. thanks for your great kernel!
would be nice if you could comment short here so that your fans know that you are working on this anymore or not
That's gotta get funny... Getting my popcorn ready! ?
Gesendet von meinem GT-N7000 mit Tapatalk
Noteguy said:
hello i am using your kernel now for some month and it was really nice. but since some months there is no progress here. are you working on it anymore? an update would be nice after over 3 months now. I would have really some "good" additions und suggestions for the kernel. Furthermore, philz touch has a new version out. would be really nice if you could update it to the latest version. the cwm integrated to the cm11 stock kernel now is newer as the base of your last released forest kernel. Also some here have deep sleep problems. Also it would be nice if you could look for sabermod/Linaro und archi optimizations or -03 optimization of the kernel in general. thanks for your great kernel!
would be nice if you could comment short here so that your fans know that you are working on this anymore or not
Click to expand...
Click to collapse
Too busy at work so not working on it for now. Maybe when there is CM stable or CM Lilopop....
For those who has deep sleep prob, should try disabling the sync. Use synker app to manually turn sync on/off.
Sent from my GT-N7000 using Tapatalk 2
i had a problem wiz cm11
Guys my battery drains very fast and i change it but the problem still happening
And after install this kernal v5 it better than the stock kernal but it use more than 25% of battery wthin less than on hour if i use wifi and just open whatsapp and browser .
If anyone had a solve for this problem ?
alimohammad412 said:
Guys my battery drains very fast and i change it but the problem still happening
And after install this kernal v5 it better than the stock kernal but it use more than 25% of battery wthin less than on hour if i use wifi and just open whatsapp and browser .
If anyone had a solve for this problem ?
Click to expand...
Click to collapse
Have u turned off autosync? It consumes much battery.
Sent from my GT-N7000 using Tapatalk 2
the drain of battery still
forest1971 said:
Have u turned off autosync? It consumes much battery.
Sent from my GT-N7000 using Tapatalk 2
Click to expand...
Click to collapse
yes i turned it off and from setting/privacy/ i disabled Google play services and almost the app. from- wake up & Location & keep awake.
and i used the lowest Brightness
What exactly is the difference between the one with trim support and the one without . how do i choose which one to flash?
Thomas k philip said:
What exactly is the difference between the one with trim support and the one without . how do i choose which one to flash?
Click to expand...
Click to collapse
The one that has TRIM has TRIM. The one that doesn't have TRIM doesn't have TRIM. You can choose which one to flash by searching and reading what TRIM is, understanding the risks, and then deciding whether you're willing to take on the risk or not. Simple as that.
Am using v3 kernal for nightowl ..phones heating..but v1 is stable for me no heating and very snappy .thankyou for the kernal
---------- Post added at 10:58 AM ---------- Previous post was at 10:53 AM ----------
alimohammad412 said:
Guys my battery drains very fast and i change it but the problem still happening
And after install this kernal v5 it better than the stock kernal but it use more than 25% of battery wthin less than on hour if i use wifi and just open whatsapp and browser .
If anyone had a solve for this problem ?
Click to expand...
Click to collapse
Use no frills, underclock to 1.2 GHz.. Then use ondemand Governor... Problem solved..
Dear Forest, am I correct that the forest kernel beta4 in comparison to r9 is missing lcd oc?
Is there now any advantages left over r9 since cpu oc got removed?
phoenX80 said:
Dear Forest, am I correct that the forest kernel beta4 in comparison to r9 is missing lcd oc?
Is there now any advantages left over r9 since cpu oc got removed?
Click to expand...
Click to collapse
If u cant read properly the op and cant flash and try for your self then dont go to xda asking nonsense questions.
Sent from my GT-N7000 using Tapatalk 2
Whats ur problem? This q+a or not?
I used v3ts until now on rr528. Since theres no b4 i switched to nightowl b4. And now Raw4 ist out that offers trim, gpu driver upd, oled oc and fpbug. I used to use forest because of cpu oc. Now that it is gone i wonder if there still is any supremacy of ur kernel that i dont see.
So what is ur problem with this question?
Why don't you just use whatever kernel you like and stop trolling?
Gesendet von meinem GT-N7000 mit Tapatalk
English is not my first language so i might not see the intentions of ur answers. I dont mean to troll. I want to continue using forests kernel and was wondering what the current state in comparison to raw it is in as these are the only custom kernels available. Since this is somehow an offence to someone dont mind anserwing this anymore. Its not an issue.
The link
The link for the downloading the kernel Forest-LP-Kernel_V4 from dropbox doesn't work. It suggests me to register on the dropbox.
I've downloaded it.
A Little Request and Questions
Greetings Forest! I am a new user of XDA, so forgive me if I made mistakes in presentation or in technical accuracy.
I am currently using your Kernel with CM11, and as far as stability goes, everything is working fine, although I find myself facing instabilities using the PegasusQ governor. Looking at the governer closely through ROM toolbox lead me to realise that there a hotplug settings existent for 4 core devices, while the Galaxy Note only has 2. Is this an issue? As far as it goes, I find myself waking up to a device showing the bootanimation continuously, but very slowly and choppy, forcing me to restart the phone. Luckily I wake up on time for work via instinct. Apart from that, the phone crashes except when using ondemand. Is there any explanation for these crashes?
Now for the requests. Since ondemand is not really the best, as I have seen more responsive and effective governors like SmartAssV2, which is personally my favourite. I've also read up on Interactive being a more responsive version of ondemand, I was wondering if you could include more governors for the kernel. Unless of course, governors are limited to CPU types which I hope not, then probably this post would've been written for nothing.
Thank you for taking the time to read this. Do understand that I am not in the field of programming, and I apologise if I made any mistakes. I look forward to your reply.
Zarhymn said:
Greetings Forest! I am a new user of XDA, so forgive me if I made mistakes in presentation or in technical accuracy.
I am currently using your Kernel with CM11, and as far as stability goes, everything is working fine, although I find myself facing instabilities using the PegasusQ governor. Looking at the governer closely through ROM toolbox lead me to realise that there a hotplug settings existent for 4 core devices, while the Galaxy Note only has 2. Is this an issue? As far as it goes, I find myself waking up to a device showing the bootanimation continuously, but very slowly and choppy, forcing me to restart the phone. Luckily I wake up on time for work via instinct. Apart from that, the phone crashes except when using ondemand. Is there any explanation for these crashes?
Now for the requests. Since ondemand is not really the best, as I have seen more responsive and effective governors like SmartAssV2, which is personally my favourite. I've also read up on Interactive being a more responsive version of ondemand, I was wondering if you could include more governors for the kernel. Unless of course, governors are limited to CPU types which I hope not, then probably this post would've been written for nothing.
Thank you for taking the time to read this. Do understand that I am not in the field of programming, and I apologise if I made any mistakes. I look forward to your reply.
Click to expand...
Click to collapse
Thank u for investigating the bug and helpful report:good:. I am also testing with stock cm kernel using pegasusq and also got a freeze. Now i can recalled similar problem faced by Slimsaber. On the other hand, my kernel run well on omni and omni based. So there seems to be some issues with some governors but only happen in CM and CM based rom. I will try to fix or remove/add some new governors when I can.
For now should use Ondemand!
Update
forest1971 said:
Thank u for investigating the bug and helpful report:good:. I am also testing with stock cm kernel using pegasusq and also got a freeze. Now i can recalled similar problem faced by Slimsaber. On the other hand, my kernel run well on omni and omni based. So there seems to be some issues with some governors but only happen in CM and CM based rom. I will try to fix or remove/add some new governors when I can.
For now should use Ondemand!
Click to expand...
Click to collapse
Well, today I woke up to a frozen boot animation screen, even on ondemand. Although ondemand lasted longer before crashing.
There might be much more issues with CM.
I will test out OmniRom later this afternoon.
Zarhymn said:
Well, today I woke up to a frozen boot animation screen, even on ondemand. Although ondemand lasted longer before crashing.
There might be much more issues with CM.
I will test out OmniRom later this afternoon.[/QUOTE
Hm. That present some new challenge. I am back to cm now to test it more. will also update the kernel soon to apply some changes in governors and other changes to improve stability.
Sent from my GT-N7000 using Tapatalk 2
Click to expand...
Click to collapse