yashsingh1/xdaforums huggingface dataset:
[Galaxy Tab S Original Android Development] UpInTheAir:
v1.0 released

R3_v1.0 kernel is now released for supported 8.4" models :)

Change-log is in Post #2.

T700

WIFI

R3_v1.0 is untested. Please let me know how it goes........

For those on older ROM firmware, please upgrade or you might have issues that we can't reproduce. Otherwsie, stay with v0.6.

Ensure you flash the kernel for your device model !!

NOTE: commit credits are in source.

If you have Synapse issue after UPGRADING, please force stop app and delete Synapse data/cache first ;)

Further instructions in Synapse app & Posts #1-3

For UMS & other: Please read BUG REPORT tab found in PC website layout

Enjoy :good:

Cheers,

UITA

.
[Galaxy Tab S Original Android Development] UpInTheAir:
Sorry. A little hasty on my response.

CB haveged should be OK where as Seeder rngd binary will increase battery drain.

I've tested the rngd binary as a kernel service and works, but won't implement it due to above stated reason.

I will try haveged binary and see if I can get it going as a kernel service and test it.

I have frandom implemented, so not sure if any conflict there.

[MENTION=1473204]edan1979[/MENTION] Don't think I'll continue with this, good reasons in the below link, unless [MENTION=3599329]pikachu01[/MENTION] has had a rethink over the last 12 months ?

http://xdaforums.com/showpost.php?p=37531882&postcount=5157
[Galaxy Tab S Original Android Development] pikachu01:
Nope, still the same conclusion unless someone can refute the post I posted ;)
[Galaxy Tab S Original Android Development] UpInTheAir:
Thank you for re-confirming :)
[Galaxy Tab S Original Android Development] MariozPOC:
Thnks for your very nice work!! I like it a lot.......

As I wish (anyway) to be safe restoring the stock kernel I did try it but ........ I had a reset of wifi passwords (as advised) but the problem is now the passwords are "forgotten" each restart. Can you give a suggestion, pls? I did re-flshed stock kernel 3 times and fixed permissions with no result.

Thnks very much...... I am going to try your 1.0 version in short time :)
[Galaxy Tab S Original Android Development] UpInTheAir:
Try change your /system/build.prop :

ro.securestorage.support=true

TO

ro.securestorage.support=false

Don't forget to mount system r/w first, save, and reboot ;)
[Galaxy Tab S Original Android Development] MariozPOC:
EDIT: OK finally I was able to do as you wrote and now everything is ok also with my wifi passwords :)
[Galaxy Tab S Original Android Development] WarLion:
Sorry wrong post
[Galaxy Tab S Original Android Development] kempi46:
working great

Been using version 1.0 on my wifi 8.4 and working great since yesterday. Definitely a lot smoother than stock. Also oc my gpu to 533 and no crashes or random reboots so far. Everything smooth and stable. Thanks man :good:
[Galaxy Tab S Original Android Development] texeros:
The only problem I found its the battery drain and the force closing of Google search.

Any idea?
[Galaxy Tab S Original Android Development] Svenbee:
Similarly the google search seems to use a lot of battery on my SM-T700 although I never checked prior to installing the debloated and deknoxed Rom with this kernel. Very smooth though
[Galaxy Tab S Original Android Development] UpInTheAir:
Why would kernel have anything to do with it ? >>>> Q&A

I have it frozen with Titanium and no problem ;)
[Galaxy Tab S Original Android Development] TheGoD:
Google Search works normal for me.
[Galaxy Tab S Original Android Development] UpInTheAir:
Update tomorrow
[Galaxy Tab S Original Android Development] UpInTheAir:
v1.1 released

R3_v1.1 kernel is now released for supported 8.4" models :)

Change-log is in Post #2.

T700

WIFI

R3_v1.1 is untested. Please let me know how it goes........

For those on older ROM firmware, please upgrade or you might have issues that we can't reproduce. Otherwsie, stay with v0.6.

Ensure you flash the kernel for your device model !!

NOTE: commit credits are in source.

If you have Synapse issue after UPGRADING, please force stop app and delete Synapse data/cache first ;)

Further instructions in Synapse app & Posts #1-3

For UMS & other: Please read BUG REPORT tab found in PC website layout

Enjoy :good:

Cheers,

UITA

.
[Galaxy Tab S Original Android Development] LibiSC:
Hi Sky.

I'm using your commits in galaxy tab pro 10.1 wifi (SM-T520). Could you please allow your app to be used with this model...thanks
[Galaxy Tab S Original Android Development] UpInTheAir:
Im not too sure what you mean about "app", the only app recommended for my kernel is Synapse app built by the great AndreiLux :)

Commits are open source, just make sure you make your source and changes available (I use github, not a stupid zip or tar - who does that help. ...) to comply with GPL and XDA rules ;) Not only that, it shows you have nothing to "hide", builds trust and helps yourself and others ;)

Best of luck,

UITA
[Galaxy Tab S Original Android Development] LibiSC:
Thought it was yours...yes I got the git hub ready...haven't published it yet...I got an error when I open the app...I will ask the creator thanks

Enviado desde mi SM-T520 mediante Tapatalk
[Galaxy Tab S Original Android Development] texeros:
I update your kernel. My devices is stuck on boot. What can I do?
[Galaxy Tab S Original Android Development] UpInTheAir:
You haven't stated which device, ROM etc etc etc.....

Did you flash the correct kernel for device model?

Did you follow the installation instructions?

Did you read Post #3 again, before posting here?

Edit: It's been a while, so assume you got it sorted out. ... :)
[Galaxy Tab S Original Android Development] UpInTheAir:
v1.2 released

R3_v1.2 kernel is now released for supported 8.4" models :)

Change-log is in Post #2.

T700

WIFI

R3_v1.2 is untested. Please let me know how it goes........

For those on older ROM firmware, please upgrade or you might have issues that we can't reproduce. Otherwsie, stay with v0.6.

Ensure you flash the kernel for your device model !!

NOTE: commit credits are in source.

If you have Synapse issue after UPGRADING, please force stop app and delete Synapse data/cache first ;)

Further instructions in Synapse app & Posts #1-3

For UMS & other: Please read BUG REPORT tab found in PC website layout

Enjoy :good:

Cheers,

UITA

.
[Galaxy Tab S Original Android Development] TheGoD:
Could it be that some of the interactive governor tunables don't make much sense? Especially Hispeed at 600?

Strange, I just got that situation again. Device was ratter laggy (including stuttering window open/close animations) with only ~200 MB available according to Samsung's task manager. After closing some random background apps (that didn't produce any cpu load) it was fluid again.

I have GPU at 233/600. Was even able to reduce 533/600 MHZ to 925 mV.

Thanks for this honest answer, much appreciated.

P. S. Sorry for the late responds.
[Galaxy Tab S Original Android Development] UpInTheAir:
I'll look into the governor variable at some point in time. All are stock, which doesn't mean it's right. I could also exclude it from Synapse, but will check first. Your welcome to post your findings on this.

I cannot create any lag on my 8.4" device due to low RAM. The LMK kills off apps as required. I'm using stock official rooted odex firmware. As you haven't posted your firmware, i can only suggest to try with odex stock official firmware. Also prevent unneeded apps from running in background and Greenify them. You can install cool tool app and use my configuration file found in Post #3.

Next update will have slight adjustment for ROM power saving feature. Ensuring stock frequency table is used. Seems to also "fixed" the CPU spiking to 1900 more than it should, using more 1600-1800 instead. Should help with the battery. ..... :)
[Galaxy Tab S Original Android Development] MariozPOC:
Thnks for the new version of your kernel.

I did try the 0.9 version on rooted stock but I came back as I had too much battery drain in sleeping state (in reality I had not investigate what the problem was). I followed your directions for a battery life in the installation post but something was not working correctly.

I installed the 1.2 version and followed the "battery life" settings (not undervolting - the fact undervolting plays a role in a better battery life it is just an androdian myth :) IMHO). I have now a correct deep sleep during the not using time and a correct battery drain.

Assuming so I am going to use your kernel as my "daily drive" ;). I set Synapse to boot with the device and I backed up the settings via the included bkp feature. I have to ask you something ab that: as I'll upgrade the kernel with your future releases can I restore Synapse settings from the bkp? Or the saved settings belong to only a particular kernel version?

Thnks very much :)
[Galaxy Tab S Original Android Development] UpInTheAir:
Based on your opinion: Over Volting won't decrease battery life. ....... of course it will ! A couple % here and there all make a difference. GPU has good scope for UV and UC idle.

I wouldn't restore any profile backup if I've changed any Synapse features or controls. You will know that by reading the Change-Log.

As I say in the release post, if you have issues with Synapse, force stop and clear app data (reboot too).
[Galaxy Tab S Original Android Development] MariozPOC:
mmmmmm...... ok, in reality I did not evaluated GPU undervolting........ I'll go to try that :)

I did not explain myself correctly ab the bkp matter: I asked if I had the possibility to apply a former Synapse setting to a new upgraded kernel. I know as the Synapse app changes I have to reconsider all what I did about it :)

Thnks
[Galaxy Tab S Original Android Development] UpInTheAir:
There's always possibility, but I already said that i would not restore profile backup i over changed anything in Synapse........... Otherwise might not work as intended
[Galaxy Tab S Original Android Development] UpInTheAir:
Managed to port something cool I had in my Note 3 kernel. Not updated source yet. Wait for release soonish. .... In source now ;)
[Galaxy Tab S Original Android Development] UpInTheAir:
v1.3 released

R3_v1.3 kernel is now released for supported 8.4" models :)

Change-log is in Post #2.

T700

WIFI

R3_v1.3 is untested. Please let me know how it goes........

For those on older ROM firmware, please upgrade or you might have issues that we can't reproduce. Otherwsie, stay with v0.6.

Ensure you flash the kernel for your device model !!

NOTE: commit credits are in source.

If you have Synapse issue after UPGRADING, please force stop app and delete Synapse data/cache first ;)

Further instructions in Synapse app & Posts #1-3

For UMS & other: Please read BUG REPORT tab found in PC website layout

Enjoy :good:

Cheers,

UITA

.
[Galaxy Tab S Original Android Development] UpInTheAir:
AnTuTu v5.0 Beta1 Results !! 40350

SM-T705

Stock official rooted ROM (no tweaks)

Knox removed

DVFS disabled

Some apps frozen with Titanium (only a couple)

Some user apps Greenify

RAM cache not cleared

No reboot before test

Device at rest for 10 minutes

Room temp 20-24 degC

All SkyHigh kernel defaults except:

CPU 500-2100 MHz

CPU -25 mV (500-1900)

GPU 177-667 MHz

GPU -50 mV (177-533)
[Galaxy Tab S Original Android Development] MariozPOC:
Dear dev :)

after a couple of days with my 705 and rooted stock NG2 with your 1.3 kernel I can tell: " You arrived to quite perfection :)"

I don't use TW (of course) but Nova, and mixing the right settings you suggest I have very good performances and very good battery, as the battery drain in non-use of the tablet is really acceptable. I don't like to switch off my tablets but Android tablets are very "prone" :) to use a lot of battery without a real reason. That irritates me a lot.

Thnks for your efforts. Now my next goal is to get a real Android ROM (AOSP or better CM11) on my device. I am following the SM 700 progress in others 3D and it looks very promising........
[Galaxy Tab S Original Android Development] UpInTheAir:
A few days ago (at request/suggestion) I sent an alpha kernel there for test but received no feedback. .... I understand people are busy,. ... Doesn't matter now, I'm busy too
[Galaxy Tab S Original Android Development] MariozPOC:
I see...... do you mean your kernel is CAF compliant?

Thnks
[Galaxy Tab S Original Android Development] UpInTheAir:
I don't know if it works with anything other than TW based ROMs, just a test, that's all. Obviously there needs to be changes to at least boot. I'm more concerned with what I like and use, TW :)
[Galaxy Tab S Original Android Development] jehdesai:
with otherwise nice device ,my concern with the t705 is laggy UI and slow when working on Spreadsheets (tried wps ,hancom,polaris) i basically got this device that I can work on spreadsheet on the go,but whenever i try to feed digits in the cells i have to wait for a moment before i can move to next cell.This does not happen with my gen 4 ipad and iphone 5s ,they are as snappy as you want them to be.

So will skyhigh kernel help?also i read that i can 'disable' knox does that mean i will not void the warranty doing so?

Thanks
[Galaxy Tab S Original Android Development] UpInTheAir:
Your sluggishness may not necessarily be the device or firmware, but instead the app not optimised for device ......

No idea if it will help, I don't tweak it too much, but expose many parameters for user to optionally do so. There are many guides on kernel parameters, some descriptions in Synapse.

If you read Post #1-3 would answer many questions. Knox is removed during the flashing process (updater-script). The "requirements" may or may not void your warranty, depending on law and willingness of your service centre in your region.
[Galaxy Tab S Original Android Development] jpearn:
Just to let you know screen mirroring is working fine on sm-t700 with actiontec screenbeam pro, thanks!
[Galaxy Tab S Original Android Development] UpInTheAir:
Thanks for letting us know.

Are you using official stock ROM or Custom ROM built on stock base ?
[Galaxy Tab S Original Android Development] jpearn:
Stock F9
[Galaxy Tab S Original Android Development] UpInTheAir:
v1.4 released

R3_v1.4 kernel is now released for supported 8.4" models :)

Change-log is in Post #2.

T700

WIFI

R3_v1.4 is untested. Please let me know how it goes........

For those on older ROM firmware, please upgrade or you might have issues that we can't reproduce. Otherwsie, stay with v0.6.

Ensure you flash the kernel for your device model !!

NOTE: commit credits are in source.

If you have Synapse issue after UPGRADING, please force stop app and delete Synapse data/cache first ;)

Further instructions in Synapse app & Posts #1-3

For UMS & other: Please read BUG REPORT tab found in PC website layout

Enjoy :good:

Cheers,

UITA

.
[Galaxy Tab S Original Android Development] jpearn:
T700 WIFI R3_v1.4 working fine here since last night !
[Galaxy Tab S Original Android Development] NerdFurgison:
+1 t700
[Galaxy Tab S Original Android Development] pibach:
I can confirm Kernel R3 V1.4 works fine so far on Tab S 8.4 LTE, Stock German ROM (T705XXU1ANF7).

Some minor debloating.

CPU OC to 2Ghz, GPU OC to 667Mhz

I did not understand what exactly contributes to performance and responsiveness improvements other than OC. My device arrives at Antutu 35235 point (can't feel any overheating). So its not bad, but still not 40000 region.

But Undervolting might be more valuable anyway. So I would be interested in your UV voltages. Ok, we know -0,25V does work for most. But does -0,5 etc work as well? Little cores seem to work fine even on much less. And GPU even lesser. Who played with the voltage levels and figured the limits?

Also I would assume that UC does result in near proportional reduction in power consumption. Is that true (from a theoretical viewpoint)?
[Galaxy Tab S Original Android Development] UpInTheAir:
As I said; many factors affecting benchmark, including the app version ! I detailed my exact method. ;)

I had a reboot at CPU -50 mV, never bothers to tune each freq properly. Every device is different, so I just recommend at starting point for user.

General performance and responsiveness does not always equal benchmark performance. (generally, we don't max the device out 100% of the time ......)

GPU -50 mV works fine on my device 100-533 MHz, Reducing 600 & 677 results in freezes on my device. I also have not tuned each frequency to suit my device.

Limits will be sightly different for individual 8.4 / 10.5 (more pixels to power) device and model.
[Galaxy Tab S Original Android Development] UpInTheAir:
AnTuTu bench

Unreleased kernel v1.5 AnTuTu Benchmark !! 42017 No trick :)

Just having a little fun :)

AnTuTu X version v5.0 beta1

SM-T705

CPU: 500-2100 MHz

-25 mV 500-1900 MHz

+50 mV 2100 MHz

GPU: 177-677 MHz

-50 mV 177-533 MHz

Dynamic FSync enabled

Stock official rooted odex ROM

DVFS disabled with Wanam DVFS Xposed module

All other kernel settings at default

1. Clear RAM cache

2. Minimal running processes

3. Open AnTuTu and ready to test

4. Turn off screen for 10 minutes for device idle and cool

5. Ambient room temperature is 20 degC

6. Press test

7. Wait for the magic. .....

A low ambient (room) and device starting temperature are the key !

Edit: follow up test score 41713 ;) So didn't get lucky and not a "fluke" !
[Galaxy Tab S Original Android Development] edan1979:
without your kernel i've already achieve 38k... i wonder how much will it improve with the skyhigh... still waiting my beloved device to come back home... T_T
[Galaxy Tab S Original Android Development] UpInTheAir:
v1.5 released

R3_v1.5 kernel is now released for supported 8.4" models :)

Change-log is in Post #2.

T700

WIFI

R3_v1.5 is untested. Please let me know how it goes........

For those on older ROM firmware, please upgrade or you might have issues that we can't reproduce. Otherwsie, stay with v0.6.

Ensure you flash the kernel for your device model !!

NOTE: commit credits are in source.

If you have Synapse issue after UPGRADING, please force stop app and delete Synapse data/cache first ;)

Further instructions in Synapse app & Posts #1-3

For UMS & other: Please read BUG REPORT tab found in PC website layout

Enjoy :good:

Cheers,

UITA

.
[Galaxy Tab S Original Android Development] NerdFurgison:
So far so good with 1.5 kernel on t700. No issues since I flashed about 5 hours ago
[Galaxy Tab S Original Android Development] UpInTheAir:
Thanks for reporting :thumbup:
[Galaxy Tab S Original Android Development] radiobicho:
DELETED
[Galaxy Tab S Original Android Development] NerdFurgison:
After spending pretty much a full day with the 1.5 kernel I'm noticing better battery life and real world smoothness has greatly increased over 1.4. Don't do benchmarks so can't comment on that. Very happy with this kernel, upintheair nailed it with this one
[Galaxy Tab S Original Android Development] UpInTheAir:
I'm not generally a benchmark freak, just having a little fun to confirm what i feel. There are general tweaks to squeeze higher scores, but in doing so could possibly compromise balance and general usability. We don't all use the device max out 24/7 :eek: :) There'll be some nutcase though :p
[Galaxy Tab S Original Android Development] NerdFurgison:
When I first started flashing and modding a few years ago I put a lot of stock in benchmarking until I finally noticed 90 percent of the time the highest scores were the buggiest and most unstable and typically don't translate to real world usage so I stopped. But there are some cases, yours for example, where the dev just nails it and the benchmarks reflect actual usage. Bravo sir well done ?
[Galaxy Tab S Original Android Development] Lordjish:
I just wanted to think Skyhigh for this kernel. Running UpInTheAir's rom and only changing max cpu and graphics frequency I achieved 39844 on Antutu benchmark

Does anyone know of a good tutorial for changing things in Synapse?

Thank you
[Galaxy Tab S Original Android Development] UpInTheAir:
There's alot of reading here:

http://xdaforums.com/galaxy-s2/general/ref-kernel-governors-modules-o-t1369817

and much more by searching. .... ;)
[Galaxy Tab S Original Android Development] UpInTheAir:
v1.6 released

R3_v1.6 kernel is now released for supported 8.4" models :)

Change-log is in Post #2.

T700

WIFI

R3_v1.6 is untested. Please let me know how it goes........

For those on older ROM firmware, please upgrade or you might have issues that we can't reproduce. Otherwsie, stay with v0.6.

Ensure you flash the kernel for your device model !!

NOTE: commit credits are in source.

If you have Synapse issue after UPGRADING, please force stop app and delete Synapse data/cache first ;)

Further instructions in Synapse app & Posts #1-3

For better battery life, try ONDEMAND GOVERNOR

Enjoy :good:

Cheers,

UITA

.
[Galaxy Tab S Original Android Development] NerdFurgison:
So far so good on t700 with 1.6 ?

Edit: I haven't put much heavy usage in since flashing 1.6 but standby battery life has been incredible so far. Will test it harder tonight when the kids are asleep

Edit2: after spending some time with this I must say that for my device this version of the kernel has given me the best battery life.....by a lot. Only changes I made in synapse is fiops i/o scheduler and on demand governor and my battery life has been absolutely stellar. Performance seems just as good as last version as well. Great kernel thanks again
[Galaxy Tab S Original Android Development] UpInTheAir:
Thanks for the feedback.

I haven't really tested FIOPS to a great extent, but have been testing ROW. I have since removed the 20 odd commits because it just didn't "feel" quite right. Will nail it down sometime.

Might have a small update over the weekend though :) Just not in the mood right now.
[Galaxy Tab S Original Android Development] kempi46:
Tried this and it made my wifi 8.4 so smooth. Scrolling in chrome never felt this smooth since i bought this tab. Thanks!
[Galaxy Tab S Original Android Development] MasterGP1:
Very slow charge for from 62% to 100% 5 hours..... Why??? Any help please thank you

Στάλθηκε από το SM-T705 μου χρησιμοποιώντας Tapatalk
[Galaxy Tab S Original Android Development] UpInTheAir:
Mine works fine with official SGT charger and cable.

Edit: 15>100% in less than 3 hours with device on (at sleep) and charging at kernel default settings.
[Galaxy Tab S Original Android Development] Svenbee:
Is there an easy way to go back to default settings in synapse? I have been using iterations of this kernel since v0.9 and now get random locks presumably from overzealous undervolting. Needless to say I never saved a default profile. Thanks
[Galaxy Tab S Original Android Development] texeros:
I have a problem. Every time a reboot the device, Google search lost the update.
[Galaxy Tab S Original Android Development] UpInTheAir:
I do not believe this is kernel development related..........

This is my previous answer !!! http://xdaforums.com/showpost.php?p=55111689&postcount=251

Please, DO NOT spam this thread with it. Thanks.:

http://xdaforums.com/showpost.php?p=55109938&postcount=99

http://xdaforums.com/showpost.php?p=55542850&postcount=183

http://xdaforums.com/showpost.php?p=55109973&postcount=249
[Galaxy Tab S Original Android Development] UpInTheAir:
The answer is in my v1.6 release post ;)

It's actually in bold ...........

Edit: If you're really in trouble, you can also use the TWRP recovery file manager to delete synapse app
[Galaxy Tab S Original Android Development] UpInTheAir:
v1.7 released

R3_v1.7 kernel is now released for supported 8.4" models :)

Change-log is in Post #2.

T700

WIFI

R3_v1.7 is untested. Please let me know how it goes........

For those on older ROM firmware, please upgrade or you might have issues that we can't reproduce. Otherwsie, stay with v0.6.

Ensure you flash the kernel for your device model !!

NOTE: commit credits are in source.

If you have Synapse issue after UPGRADING, please force stop app and delete Synapse data/cache first ;)

Further instructions in Synapse app & Posts #1-3

For better battery life, try ONDEMAND GOVERNOR and recommendations in Post #3

Enjoy :good:

Cheers,

UITA

.
[Galaxy Tab S Original Android Development] palaiouras:
1.7 ROM on 705 here, it works splendid.

Regards