yashsingh1/xdaforums huggingface dataset:
[T-Mobile Samsung Galaxy S 4] wyzli:
I just tried your settings and the first time the phone did not support your underclock but it was enough to raise the CPU voltages of +5 and now seems to work perfectly. Thank you for your work. :)

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[T-Mobile Samsung Galaxy S 4] devilpera64:
Yess, is predictable result. Our machines are differents, so voltage table must be tailor-made as a habit. Unfortunately, the flaw is that the profiles are perfected too little to allow large operating margins, even where you could shave a lot more. Relase me your feedbacks ok? :good:
[T-Mobile Samsung Galaxy S 4] neriamarillo:
Gonna try it out asap!
[T-Mobile Samsung Galaxy S 4] wyzli:
You're absolutely right. In recent years I have had a s2 and a s3, and both did not withstand the underclock. you imagine how I feel now :D I'll post my feedback as soon as possible.

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[T-Mobile Samsung Galaxy S 4] doctordroid:
PearSun 2... Bootloop again.. Well it booted up but won't let me access ktweaker to change anything. I really want to try this out but can't be having the bootloops. Anyone able to up the cpu for me? How do I modify a profile before I load it up?

Thanks

Eclipse rom Verizon s4
[T-Mobile Samsung Galaxy S 4] mamba720027:
I was about to give your profile a spin to see your progress but like others have stated I also encountered bootloops. I barely was able to enter ktweaker n switch all to defaults. You need to set the boottime to Apply profile settings longer peeiod for safety measurer. Also its a good idea to test your profile between a few individuals to minimize the reboots n hikkups along the way. Im up for testing if u need.
[T-Mobile Samsung Galaxy S 4] devilpera64:
It's related to your s4 CPU that maybe can't handle correctly so lower freq. For solve problem with KTweaker (if it won't open anymore) you have to uninstall it using Root Uninstaller (from system) then, install it manually extracting apk package from KT kernel zip. If your app won't enter but is just a user-not-system app, simply delete it cache and close it from app menù. Then, you can recall my profile and into Voltage add step by step 5mV x time, and see if is it stable.

I'm sad because i think that this is my best profile ever...trust me 6-7 hours of screen on are difficult to reach in other manners using 2600mAh battery on this device.
[T-Mobile Samsung Galaxy S 4] Galaen:
Guess I got lucky. No bootloops for me. Working great so far. I did have one random reboot when my kid was playing a game (about 30 minutes into it), but I'm not worried about it. I'm sure I just need to up the voltages a touch.

Edit: I have been running your v2 since maybe 30 minutes after you first posted it, and the reboot just happened. Like I said, I'm not worried about it. Great job!

Sent from my AT&T Galaxy S4
[T-Mobile Samsung Galaxy S 4] Jabberwockyyy:
Anyone tried the latest update 20.10 with slim 1.9 yet?
[T-Mobile Samsung Galaxy S 4] dynospectrum:
Doesn't work, weird graphical glitch.
[T-Mobile Samsung Galaxy S 4] doctordroid:
Well I had to nandroid back because it was bootlooping before I could get anything changed. Could you up the mV so the few of us who have issues can load it up for a spin. Looks like others are having issues so maybe load another version tweaked for the masses!

Thanks for your hard work!
[T-Mobile Samsung Galaxy S 4] LuigiBull23:
The phone should boot just fine but you're likely to have some serious color distortion/inversion throughout the entire screen. The new video display drivers in CM code were not merged in Slim build 1.9. So you either need to upgrade to a ROM released on 10/20 or downgrade the kernel.
[T-Mobile Samsung Galaxy S 4] mamba720027:
This is a revision of my (daylight profile) for those that had problems with the voltage being too low and a few other major tweaks concerning power management advised by individuals who have tried it and myself who felt it is a good idea to do this rev release.

The Download link will also be added to my previous initial release.

https://db.tt/phhe2UEB
[T-Mobile Samsung Galaxy S 4] arcrox:
Does this affect the daybreak profile as well?
[T-Mobile Samsung Galaxy S 4] LuigiBull23:
Agreed. However, if I'm assisting Ktoonsez by providing all of his kernel builds and offering my support on each of his kernel threads, it would really make sense for discussion on the builds and whatnot to take place here as well. In fact I tend to see this more as a Q&A thread to say the least. Ktoonsez is a very busy man and I'm usually the one there as his right hand man to offer support on the kernel during his absences. Nonetheless, I do agree on the Ktweaker profiles. There's honestly no hurt in including them here. I will use post #8 for all my pre-configured settings with a short description on what to expect off each of the respective profiles.

Thank you for making up my mind lol :)
[T-Mobile Samsung Galaxy S 4] jorceshaman:
Sounds awesome. I'm currently testing out that Super Bull v1.1 but I think I'm going to switch back to your v4.1. I like it better. Keep up the good work and thank you for sharing your settings!
[T-Mobile Samsung Galaxy S 4] LuigiBull23:
Same here. I've been testing it as well and although I appreciate the changes [MENTION=5410005]MavereXx[/MENTION] made to my original setup to better improve it, my phone just isn't liking the low voltages set. It's not as stable FOR ME overall and it's been causing lags here and there. This is why I hate the concept of Undervolting. So I switched back to my baby Nightmare To Remember lol

EDIT: Thank you for the kind words bro. Really appreciate it.
[T-Mobile Samsung Galaxy S 4] jorceshaman:
It was stable for me but I was seeing a noticeably lower battery life. And you're welcome.
[T-Mobile Samsung Galaxy S 4] stl-fan:
What setting in the nightmare would be keeping me from using all CPU states? I don't touch anything below 378 MHz. I don't think it seems like a uV issue, so I was just curious what would be the best thing to adjust to make sure I'm using all CPU states.
[T-Mobile Samsung Galaxy S 4] MavereXx:
Everything 702mhz and below shouldn't need 900mv to operate. Fixing those isnt undervolting, the proper operating voltages simply aren't in the default table because stock kernel is not set up properly or at all for those lower frequencies. My setup finds the correct voltages for them plus minor undervolting for everything else.

The profile I have created is specially tuned for I337m. May achieve similar results on other SGS4 devices.
[T-Mobile Samsung Galaxy S 4] NiteQwill:
Thanks for sharing. Started running it but ran into a lot of reboots when opening my calendar. Otherwise, it was working great.
[T-Mobile Samsung Galaxy S 4] MavereXx:
I have updated my battery saving settings to be stable not just for i337 devices. It should now be stable with the more voltage hungry i545.

Super Bull 1.2

http://www33.zippyshare.com/v/48155660/file.html

Changes:

- GPU set to 505mhz max instead of 545.. (Stock is 450) voltage for max dropped to compensate.

- CPU voltage table reconfigured across the board to compensate for stability across all Qualcomm SGS4 devices.

- CPU Govenor alterations for more responsive wake up.

Thanks for your comments. This version should bring some of the best battery life possible on this device without sacrificing performance. If the voltages dont play nice with your device, specifically the i545 for some reason let me know as the voltages configuration is not final. Works magnificent for i337.
[T-Mobile Samsung Galaxy S 4] BossJ:
Testing!!! I know I'm new around here, however, I've been running the nightmare version for the last week and can not believe the results!!!

So I'll gladly test this :D Love new configs!

Thanks guys for all you do!
[T-Mobile Samsung Galaxy S 4] ahatzz11:
Awesome! I think a lot of people go to the real kernel thread for issues and things. I think this one is a little more hidden. I definitely like the idea of having post 8 dedicated to settings. Files, descriptions, maybe a few results. I think that this thread shouldn't have just one direction, but should be flexible for anyone here who has a question about any aspect of the kernels.

I'm running super bull 4.1 on my s4 right now. I'll post results later. Thanks to Ktoonsez and Luigibull :) you guys are awesome.
[T-Mobile Samsung Galaxy S 4] LuigiBull23:
Updating now. attachments will be replaced with links to my settings in post #8. Bare with me as this is a WIP :)
[T-Mobile Samsung Galaxy S 4] MavereXx:
[MENTION=4935383]stl-fan[/MENTION]

Nightmare is an all-or-nothing governor, and the settings profile you downloaded that is named after it uses it. Nightmare loves going full out and then drops the frequency like a rock when it's done, which in my personal opinion is kind of silly because the middle of the road frequencies can use less power and handle the load needed at that time with no difference in performance to the end user. ...

Besides the fact to change it so it uses all frequencies just change the CPU govenor to something else, like ondemand for example, or if you want excellent battery life ktoonservative works great! Or you can try another well tweaked profile like mine or the many others out there.
[T-Mobile Samsung Galaxy S 4] stl-fan:
Thanks for the clarification! I appreciate it. I figured a governor switch was the solution.
[T-Mobile Samsung Galaxy S 4] makenmoney82:
Which one is ur latest one im new to this samsung galaxy s4 I just switched from the iphone 5 thanks ive been using 4.1 and Im getting great battery results once I figure out how to post screen shots I will
[T-Mobile Samsung Galaxy S 4] LuigiBull23:
4.1 are my latest settings so you're all set.
[T-Mobile Samsung Galaxy S 4] imaverik:
Well I would post my results of the new luigibull test I promised but after a day at work I still have 70%. I'm not posting results till I hit atleast 30% left I've decided.

You'll have to wait another day for my results on testing the 4.1 luigibull settings.
[T-Mobile Samsung Galaxy S 4] ace2153:
When I click on the spoiler there's a download link what is this for?
[T-Mobile Samsung Galaxy S 4] LuigiBull23:
Text file to the corresponding settings.
[T-Mobile Samsung Galaxy S 4] aznvi3tric3guy:
Are majority of you guys using AOSP roms or TW? I'm using TW with bull 4.1 and I get lags and stutters. Every single time I use ktoonez kernel I get random reboots. Sigh F my stupid s4 chip.
[T-Mobile Samsung Galaxy S 4] Exel:
I'm using TW. Haven't felt some big lag but haven't used it for too long, just changed the settings to Bull 4.1, will report a little later on.
[T-Mobile Samsung Galaxy S 4] Jabberwockyyy:
So 16.10 should work fine?
[T-Mobile Samsung Galaxy S 4] mamba720027:
No it does not. The daybreak profile is unique by itself. No changes is necessary.

Individuals can tweak upon it as it holds potential to be a best all around profile that delivers performance when needed and conservative on battery by utalizeing lower frequency when high performance is not needed.

Daylight profile is specifically only utalizeing lower half of cpu frequency table as to produce optimum battery performance. This Rev majorly was come about because I want it to work on any of the various model of S4. By increaseing cpu/gpu voltages the necessary core adjustments and tweaks was needed to maintain the Profile objective :)
[T-Mobile Samsung Galaxy S 4] LuigiBull23:
Yes. It will work just fine
[T-Mobile Samsung Galaxy S 4] worldpremier12:
just out of curiosity, what app did you use to apply the daylight profile settings while running bioshock? and what governor did you use since bioshock kernel does not have ktoonservativeq?
[T-Mobile Samsung Galaxy S 4] wyzli:
[MENTION=1399892]devilpera64[/MENTION] What's rom do you use?

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[T-Mobile Samsung Galaxy S 4] Tunasty:
These settings are for KT's kernel, not for Bioshock. If your looking for bioshock settings, look for the ones I've posted in all the Infamous threads.

Sent from my Samsung Galaxy S4
[T-Mobile Samsung Galaxy S 4] LuigiBull23:
What Lies Beneath - WIP

LTE only

Auto Sync: ON

Brightness = 40%

Location Services: ON

No GSF mod

Greenify

EDIT: [MENTION=2986335]mamba720027[/MENTION], sorry for the delay dude. Your Daylight profile will be added to the Shop soon. I'm having a major overhaul on the Shop with profile updates/additions, removal of spoilers, links to profile adjustments and new Ktweaker guide, and hopefully a new banner to make the Shop more presentable. Once final test phases are complete I will update the Shop.
[T-Mobile Samsung Galaxy S 4] mamba720027:
No problem bro, looking forward to see the shop changes :)

That's one crazy cycle drain their. Also looking forward to the final of "what lies beneath" profile. You been working a long time on it.

If you need me to test any updated stuff let me know ;)
[T-Mobile Samsung Galaxy S 4] manofcolombia:
Curious of what you were doing during the run? Says allot of phone idle, well allot compared to my normal runs haha
[T-Mobile Samsung Galaxy S 4] devilpera64:
Pearsun 2.1 - REV

For all that encounter bootloops here there's a revision where i've only push +30mV on all CPU frequencies and +25mV on GPU side, removing auto-apply on boot for allow you all tests.

I suggest to reduce -5mV for find your best personal minus undervolting capacity.

My system for example can work propely with this voltage table config:

81mhz 700mV

135mhz 705mV

189mhz 710mV

378mhz 745mV

486mhz 765mV

594mhz 785mV

702mhz 800mV

810mhz 822mV

918mhz 835mV

1026mhz 860mV

1134mhz 885mV

1242mhz 897mV

1350mhz 922mV

1458mhz 960mV

1566mhz 985mV

1674mhz 1022mV

Download Me

I hope that you can try it. :)
[T-Mobile Samsung Galaxy S 4] mamba720027:
Looks like your cpu handles UV well. Surprised u encounter reboots with the initial release of my Daylight profile after looking @ your voltage table. But I figure its due to the GPU side cause with that much undervolting evin with min cpu speed with screen off the device should function smooth.

Will try your profile after this cycle :)
[T-Mobile Samsung Galaxy S 4] devilpera64:
GE 4.3 slim by CoolBoy :)
[T-Mobile Samsung Galaxy S 4] worldpremier12:
Yeah I realize that. Like I said, I was curious because jscroppo claimed 8 hrs screen time using mamba's daylight settings profile on bioshock kernel.
[T-Mobile Samsung Galaxy S 4] mamba720027:
Send him a PM dude, I'm sure he will be happy to share how he did it. Maybe he's not quite active following up on this thread :p
[T-Mobile Samsung Galaxy S 4] doctordroid:
Thank you very much. Will give it a go after this run! Thanks again!!!
[T-Mobile Samsung Galaxy S 4] jrollercoasters:
Why do I keep getting this message when I open ktweaker? Is it from a mod on my phone or something? How do I make it stop?

Sent from my SPH-L720 using Xparent Skyblue Tapatalk 2
[T-Mobile Samsung Galaxy S 4] Perseus:
2 Possible reasons

1. Have you explicitly granted SU to KTweaker ?

2. Have you set "Set Options on Boot"?
[T-Mobile Samsung Galaxy S 4] jrollercoasters:
Yes and yes its set for 30 secs after boot because thats how the profile set it up

EDIT:even after boot it seems to show up and it says the I/o got changed too is there maybe script I can have it repeat every 10 mins maybe?

Sent from my SPH-L720 using Xparent Skyblue Tapatalk 2
[T-Mobile Samsung Galaxy S 4] Perseus:
Are you using any kind of mods or tweaks or any such thing ?
[T-Mobile Samsung Galaxy S 4] jrollercoasters:
I have the coma dose mod but I was having this issue before downloading it and I dont believe my rom has any mods like that.. its all init.d mods

Sent from my SPH-L720 using Xparent Skyblue Tapatalk 2
[T-Mobile Samsung Galaxy S 4] ahatzz11:
So with all the profiles here now, what's the 'best'? I know that's vague, but I don't really understand the differences between a lot, but I'm looking for the best battery life with no noticeable lag. I usually change the settings when I'm gaming, but I'm just looking for a recommendation on a daily!
[T-Mobile Samsung Galaxy S 4] jrollercoasters:
I would try super battery or smooth criminal

Sent from my SPH-L720 using Xparent Skyblue Tapatalk 2
[T-Mobile Samsung Galaxy S 4] LuigiBull23:
1. What profile are you running?

2. Have you checked to make sure that "locked frequencies" is checked on?

3. Is your screen off governor and scheduler the same as your selected governor/scheduler?

4. Have you tried answering "No" for all questions then reentering Ktweaker?

There are still some checks that think the phone is a SGS3 which creates such questions and that's why you should always answer "NO".

5. Try clearing Ktweaker cache and data then force stop and reload the settings. If the messages pop up again select "No", reenter Ktweaker, and if they still show then reload the settings once more from there.
[T-Mobile Samsung Galaxy S 4] jrollercoasters:
1. I was running nightmare to remember and was having the issue and now im running iccarus peformance( the one you list as your favorite) btw im loving it as far as performance goes

2. Yes it is

3. The governor is yhe same but not the scheduler its deadline when the screen is off

4. Ive been answering yes this whole time >.> because I thought it was messing with the profile settings

5. Will try

Sent from my SPH-L720 using Xparent Skyblue Tapatalk 2
[T-Mobile Samsung Galaxy S 4] LuigiBull23:
So #4 and possibly #3 definitely looks to be the cause of it. Just answer "No" as I mentioned above and see if it goes away.
[T-Mobile Samsung Galaxy S 4] jrollercoasters:
Why is the scheduler changed in the profile for screen off if im not supoose to have it like that?

Sent from my SPH-L720 using Xparent Skyblue Tapatalk 2
[T-Mobile Samsung Galaxy S 4] mamba720027:
The scheduler is ok.

Did you try step 5? If u did and it still persists then change the screen off profile to fiops and check if the issue continues.

If it does then check your init.d folder for any scripts with kernel tweaks that maybe overriding the ktweaker settings.

If init.d folder is fine then do the first step in changeing the screen off scheduler and resave the profile as a random name and exit ktweaker.

If all else does not work then go to "settings/application manager/All" and clear cache for ktweaker then use a file manager and delete ktweaker from "system/apps". Reboot into cwm and reflash the kernel. Load ktweaker then restore defaults. Now apply any profiles you wish.
[T-Mobile Samsung Galaxy S 4] jrollercoasters:
So 4 or 5 fixed it thank you every one for helping

Sent from my SPH-L720 using Xparent Skyblue Tapatalk 2
[T-Mobile Samsung Galaxy S 4] shremi:
Results so far

Hi guys i just wanted to share my experience with u .

I always wondered how are some guys getting near 7+ hours of screen time so i did my research and ended up in this thread ... Yesterday i loaded the latest Ktweaker kernel for my device and loaded mambas daylight profile ....

This is my first run with it i have some apps greenified brightness at -5 gps off and all those samsung features are also off and here are the results :

4 hours of screen time and 3 hours of phone calls this was never posiible before.

I would like to know if this is the best i can do in a TW rom since most of the guys that are getting better screen time than me are running GE roms.

TIA

Shremi
[T-Mobile Samsung Galaxy S 4] mamba720027:
Thanks for shareing your experience.

Screen time will vary per usage because various tasks utalizes more or less resource. So depending on what youre doing you may reach 7 hours screen usage.

Also battery performance could be improve by monitoring how well the device deep sleeps by useing betterbatterystats. If you have lots of high wakelocks and partial wakelocks then it could shorten the battery usage for that cycle.

As far as Rom is concern TW rom uses alot more background services than AOSP roms and the various derivatives. Which could also degarde battery performance. But this is debatable. Im sure more individuals in here have better suggestions about the best.Roms as I am still on a 4.2.2 TW Rom :p:D
[T-Mobile Samsung Galaxy S 4] mamba720027:
@ Luigi

Your test profile.

Heavy/Medium Usage.

Rom TW 4.2.2

Brightness LUX Auto brightness - @ 51% gameing and watching movie for few hours then variable brightness.

Greenify pro to hibernate apps

Auto sync off

Rom powersaveing - heptic feedback/screen brightness enable

Deep sleep battery saver - to switch Data and Wifi off on screen off (experimental)

The phone signal screenshot broken is when in Airplane Mode underground and the very low drop is when in building basement.

Temperature screenshot is @ various battery % as it is being used. While gameing it was at its highest.

The other screenshot of BBstats are just for insight reference of what went on in background.

----

This test profile is a battery saver beast bro esp with my kind of heavy usage doing all the stuff I use my phone for :thumbup:

----
[T-Mobile Samsung Galaxy S 4] tschulieh:
So many great profiles, I can't wait to Samsung to release the 4.3 sources so that ktoonsez can bring up new tw kernel. That's the thing I really miss at the moment on 4.3 EchoeSlimV5 + :thumbup:

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[T-Mobile Samsung Galaxy S 4] 13silencer13:
Hi everybody im on 9-17-2013 kt kernel is there a newer version and if so how do I update just flash the new version in recovery
[T-Mobile Samsung Galaxy S 4] tuniel:
yes, there is. you can check in the OTA section of the ktweaker app, download it and flash it in recovery
[T-Mobile Samsung Galaxy S 4] 13silencer13:
Do I have to wipe anything
[T-Mobile Samsung Galaxy S 4] Perseus:
Yes you do. It is adviced to wipe Dalvik & Cache
[T-Mobile Samsung Galaxy S 4] Shudder123:
which profile is this that you're using?
[T-Mobile Samsung Galaxy S 4] Tunasty:
It's not out yet. [MENTION=5082757]LuigiBull23[/MENTION] is still cooking, prolly throwing some more species in there lol ;)

Sent from my Samsung Galaxy S4
[T-Mobile Samsung Galaxy S 4] LuigiBull23:
10/8 is the the latest TW version and for future reference, please follow my recommended update procedure in the OP.
[T-Mobile Samsung Galaxy S 4] Shudder123:
Sweet. Looking forward to its release!
[T-Mobile Samsung Galaxy S 4] neriamarillo:
These are my results using Pearsun 2.0:

Running Carbon Rom 10/20 nightly with KT 10/20

No GSF

Greenify

Auto brightenss

Sync off

Location off (most of the time)

LTE off when WiFi is on but on at all other times

Good screen on time, was around an hour of voice calls, and I updated my recovery at around 95% so those stats got erased from 100-95% which i has 32 mins of screen on time and around 45 mins general time. This can only get better!
[T-Mobile Samsung Galaxy S 4] jrollercoasters:
Just to let people know im a pretty heavy user and like my device snappy and dont really care about battery life but if I get good battery life thats cool. . To my point super battery saver 3.0 is amazing its very snappy and gives you great battery life its easily doubled my battery

Sent from my SPH-L720 using Xparent Skyblue Tapatalk 2
[T-Mobile Samsung Galaxy S 4] devilpera64:
Very good, thanks! i'm working on Pearsun 2.2. I think that we could be surprised. I've found method for better control CPU 1 and deny it crazy activation related to ramping on high frequency when unchained with other cores. So CPU 0 can work much more lightly, recalling CPU 1 only when needed without lags! :good:

If all go as i'm expecting, we can reach new jump in terms of battery performances!! :cyclops:

stay tuned.
[T-Mobile Samsung Galaxy S 4] doctordroid:
Running 2.1 without any issues! Thank you for modifying your profile for the masses. I haven't had a chance to mess around with it much song I have had a crazy shift here in the ER. So far so good
[T-Mobile Samsung Galaxy S 4] devilpera64:
You are welcome!
[T-Mobile Samsung Galaxy S 4] Tunasty:
Here my results for this profile.

- LTE & WIFI mix

- Lots of texting and whatsapp

- Lots of GPS

- No mods

- Greenify ofcourse

- 1 hr talk time

- today was the first day of this profile

Sent from my Samsung Galaxy S4
[T-Mobile Samsung Galaxy S 4] mamba720027:
Impressive results considering your usage,gps,voice calls and light texting plus random stuff :thumbup: