yashsingh1/xdaforums huggingface dataset:
[Galaxy S 4 General] mw86:
Personally i would load a generic boost of build prop and initd covering android default settings so they are better and ui should move faster. Other than that try 80k sample rate, sampling down factor 2 so when its at mid or high mhz it can't drop as fast till work is more likely done. 1300-1400 up step level B for a faster handling when scales past your A7 max. Try that option we discussed, ie setting high frequency zone to the frequency which you have set as your max mhz. Improve i/o and mem performance best you can as phone needs lots loaded like the camera. Usually if camera loads fast, phone does as well. Stock setup phone can take 3-4secs to load. You can get that down to 1-2. 1 sec to show framework of phone and 2 for all the graphics to show.

I have an aroma zip with my team which will be releasing an update maybe this weekend. If you like pm me and ill set you up with a test before release. We will make a i9500 thread after update is finalized. We have threads in Qualcomm GS3 and Qualcomm GS4. Has build prop and initd plus more you may use already.
[Galaxy S 4 General] Gboss01:
Does anyone know if its possible to disable vsync on the S4 Octa?

I noticed that the max FPS I can get in any game or app is 59.9, I wanna disable vsync and see how fast this phone can run.

(My S4 is running Perseus Kernel v7)
[Galaxy S 4 General] croach246:
I remember having problems with crossbreeder, I tried it for a few days and didn't notice any drastic improvements, and from memory there was something it did that annoyed me... May have been some sort of lag. Try re flashing rom + kernel and leave out crossbreeder... Or just try flashing the uninstall zip for crossbreeder.
[Galaxy S 4 General] hotheabilly:
My battery life and screen on is amazing.

Sent from my iPotato
[Galaxy S 4 General] virgosep1990:
What is the best screen calibration settings using stweaks???
[Galaxy S 4 General] HassanM:
Plz post your settings. .. Would luv to see them...
[Galaxy S 4 General] droidsmith:
You can disable frames capping with Pimpmyrom
[Galaxy S 4 General] iede:
Guys, I'm a bit curious about the In kernel switcher in our device.

Let say I OC my little core to 1400 Mhz with stock voltage : 1.2875 V. and this 1400 Mhz of little core is mapped to 700 Mhz with Big core.

The next step of my big core is 800 Mhz with stock voltage : 0.9 V

So, what is my advantage using litte core with 700 Mhz that consumes 1.2875 V compared to big core 800 Mhz that consumes 0.9 V? :confused:

Is that 700 Mhz 1.2875 V little core more efficient compared to 800 Mhz 0.9 V big core? if it's not, then what is the advantage of overclocking our little core?

thanks for your explanation guys :fingers-crossed:
[Galaxy S 4 General] AndreiLux:
To keep it short; yes.
[Galaxy S 4 General] marc_ecko28:
Great great battery with wanam + perseus = smooth and stable performance and superb battery life

Can't ask for more!
[Galaxy S 4 General] iede:
Thanks for your answer Andrei :)
[Galaxy S 4 General] HassanM:
Friends,

I'm on Omega Rom v11 / Perseus 7.2....

Im experiencing lag in Call logs... Everything else seems all fine... Can anyone suggest me how to get rid of this.... Im sure its because of Perseus...

Thanks
[Galaxy S 4 General] joyo22:
Your statement is ridiculous. You say you're sure it's Perseus. But everyine here knows TW Roms have had the same problem since SGS1. It's TouchWiz, not a kernel related issue. If you are really unhappy with your call logs performance, which is non-sense IMHO, flash another kernel or buy another phone.
[Galaxy S 4 General] HassanM:
Lol.... Didnt know I stepped on someone's.....
[Galaxy S 4 General] marc_ecko28:
Use exDialer if thats really annoying you my friend..
[Galaxy S 4 General] HassanM:
Thanks mate but honestly I'm pretty ok with the stock...
[Galaxy S 4 General] gun@id:
Hi mw. I'm a bit confuse with your explaination. Correct me if I'm wrong. When I set max clock a7 in stweaks at 600. It still go up to 750 because of perseus up step level L is 750mhz then no need to set a7 maks clock at 750mhz in stweaks. Is that right or I get it wrong. Because when I set it in stweaks to 750 i got random reboot. Please explain more

Thanks
[Galaxy S 4 General] mw86:
Nope when you set 600 a7max in stweaks you have stock setting of 750 up step level L, it sets the nearest frequency when up step level L is set higher than the current set a7 max frequency while scaling up to up step level l. This way no matter which of the four possible a7 max you choose to use 600/650/700/750 it will scale to a15 cores without issues.

I suggest for the reboots set 700 a7 max in stweaks and leave the upstep levels stock.
[Galaxy S 4 General] gun@id:
Wow that was fast reply. Thanks bro. I will try set maks a7 to 700mhz and leave up step level to 750.

Sent from my GT-I9500
[Galaxy S 4 General] gp545:
Darker Black color back with Alpha 8 and no more Greyish Black plus no smearing effect! :victory:

You're amazing Andrei and we are lucky to have you in our S4 International community... :cool:
[Galaxy S 4 General] gun@id:
random reboots

hi all, i've been experience this random reboot on my device, this happen with oc a7 core to 700 an750 with undervolting or without.

is this happen only to my device or anybody having this problem too? or maybe a bad chip. and i'm testing it with stock rooted firmware from XXUBMG1,XWUBMG5,and the last XWUBMG7 and perseus 7.2 and 8.0 and no other mods
[Galaxy S 4 General] mw86:
Nothing overclocking is guaranteed on a chip. 700mhz has been okay for most on stock volt, some chips that have lower stock Voltage will do 750 for a7 max. Best advice is try the 700 again all stock and if that still causes that just try for 650. The chip is likely not bad at all.
[Galaxy S 4 General] Simoleon23:
I have the same issue, its not just the call logs for me, but in lots of other apps like messaging, my files, Geekbench, etc. There's a lag when switching from phone app to contact and back again.

Have you tried Adam kernel? If not, try it out and see if you have any lags. I'm using Perseus but the lags are really irking, but people already have said its not the kernel but I'm not sure how can they say that when the problem isn't there on different kernel...

---------- Post added at 03:19 PM ---------- Previous post was at 03:17 PM ----------

I think you're mistaken, the lag isn't there on stock or Adam kernel..and is only present in Perseus kernel. I'm not complaining, just stating that the kernel might have something to do with it even though it seems highly improbable..
[Galaxy S 4 General] mw86:
It is not there kernel. I worked on my touch wiz install and there's bo lag anywhere even opening phone or contacts or apps. I replaced some stock tw apps with better options. But you could try my Team Kernelizers mod. Me and Exit_Only test new versions daily. We have stable releases labeled. Stay off of debug (test) builds to stay on stable builds.

http://xdaforums.com/showthread.php?t=2411161

SCRIPTS | 08/28/2013 | Team Kernelizers | Operation Killjoy™ | Speed | RAM | Battery

Improve ram, vm, and overall system performance with this mod. If I see anyone from here, there I will be glad to help get you setup. Hassan M posted of the phone lag a lot, since using our mod he reports to me it's gone and overall performance has been good with smooth UI transitions.
[Galaxy S 4 General] Towle:
The type of behavior and language that has been cleaned out of this thread will not be tolerated here, or anywhere in the forums. It is totally unacceptable and not at all necessary.

Thread cleaned.
[Galaxy S 4 General] marc_ecko28:
I also have this issue using arrow rom plus perseus... So I just roll it back to stock kernel frok arrow rom.

You can rid of it by flashing stock kernel....

Sent from my Nokia 3210 LTE
[Galaxy S 4 General] john0699:
Hello, can I flash a custom kernel on a odex Rom?

Thanks

Gesendet von meinem GT-I9505 mit Tapatalk 2
[Galaxy S 4 General] alberber:
Yes
[Galaxy S 4 General] gp545:
Yes..

But your signature states you've I9505 and please do not flash this kernel on I9505. :)
[Galaxy S 4 General] john0699:
Thanks for your help!!

Yes I know, my girlfriend have the 9500 galaxy s4!!

Gesendet von meinem GT-I9505 mit Tapatalk 2
[Galaxy S 4 General] elbildozer:
Anyone flashed the kernel?????????If so what is your feedback

---------- Post added at 07:42 PM ---------- Previous post was at 07:41 PM ----------
[Galaxy S 4 General] Zakoket2012:
uppde sugar

Hey Buddy...i noticed we are togeaher in most threads at the same time !! :o
[Galaxy S 4 General] hypergamer1231:
I am using this kernel with omega v14 + comados and have done undervolting for a7 + a15 + gpu and the [phone runs awesome will be testing battery life now thanks andrei
[Galaxy S 4 General] jujuburi:
I love this kernel, but the Antutu scores are little lower than stock (I get ~27800 on stock, and ~27000 with Perseus). Is there any way I can tweak something to make it same score or higher as stock?

I know benchmark results aren't any big deal, just that my phone is new I'd like to high scores :silly:
[Galaxy S 4 General] HassanM:
Mate did u have any problems installing Omega 14 (specially with Aroma)??? Did u do a full wipe or no full wipe??? And by the way which recovery r u using???

Thanks
[Galaxy S 4 General] Mr.Ghosh:
Audio Output dB?

Did Andrei change anything with audio section by default? Am I right to hear that the notification sounds are a little lower/less louder in output than stock's, or just my feeling?
[Galaxy S 4 General] gp545:
No idea about that one but you can always increase audio dB under audio settings on STweaks :)
[Galaxy S 4 General] Mustajab Is'haq:
First of all Sir Andrei Thank you for the Kernel and for everything you have done for the Community.

Sorry if this is not related to the Kernel but I can't ask you anywhere else and I don't want to trouble you with PM's.

I was reading the news that day and there was a rumor that the Galaxy Note III might ship with the Exynos 5420. If this is true then will you be porting your kernel to the Note III? Like you did with the Note II.

Thank you sir for your time and I am sorry again for disturbing you.
[Galaxy S 4 General] AndreiLux:
It won't be possible to do the same thing as I did with the S3 / N2 kernels due to the differing SoCs. (I never owned my own N2.)

I also don't plan to spend my own money for the N3
[Galaxy S 4 General] Bolo_ldu:
I have crash rom v8 and perseus 8 too everything works fine and have no lag at all. The rom is awesome

Enviado desde mi GT-I9500 usando Tapatalk 4 Beta
[Galaxy S 4 General] Mustajab Is'haq:
Thank you very much for your reply. Have a nice day, sir.
[Galaxy S 4 General] Mr.Ghosh:
I have increased speaker amplification to 6 dB, and turned off Speaker Tuning (enabling it causes a muffled sound?), and now I like it.

Thanks for the reply.
[Galaxy S 4 General] HassanM:
Any news on version 10???? I hope Andrei integrates all his new/innovative ideas (executable from STweaks) ... Although I believe STweaks seems to be a limited interface with some limitations to it ...
[Galaxy S 4 General] mateen5997:
expecting swipe2wake
[Galaxy S 4 General] sorg:
...with external battery from car :D

Most stupidest thing in S3's Siyah kernel.
[Galaxy S 4 General] mateen5997:
For you only. But not for all. And you are most intelligent person then Siyah, then build a better kernel :laugh:

Dont thing that what you like every body will. It is very use full think for me. And I don't mind what ever sombody think about it.

Thank for your comment.
[Galaxy S 4 General] ajhavery:
I have one small query. I see everyone talkin gof Stweaks with perseus kernel, but the kernel installation installs an app "Synapse" which I found is controlling the kernel settings and opening Stweaks with Perseus says "no kernel support".

Kindly tell me if stweaks can be used with perseus kernel too.
[Galaxy S 4 General] HassanM:
Plz dont post the same stuff on different threads. ...
[Galaxy S 4 General] matheus_sc:
Only synapse can be used.
[Galaxy S 4 General] Garfield3333:
upon

For those persons who have the new knox boot loader, and on perseus no root permissions.

I think xposed framework is the problem, i used xposed framework then i flashed perseus RAW2 kernel,

i have no root permmisions, when i´ve uninstall xposed framework and restart i have root permissions,

maybe someone helped it .......

Sorry for bad english ....THX
[Galaxy S 4 General] adi90004:
i guess its a good one, works smove.
[Galaxy S 4 General] tabenf:
I will test this thanks mate
[Galaxy S 4 General] tollboy:
Noob Question.

I have installed kernel using odin. I cant find synapse app for tweaking setting. Where to find it?
[Galaxy S 4 General] yashvchauhan:
Download from play store.
[Galaxy S 4 General] farid993:
Ok Andrie account is back. I hope he back soon.

Andrie can we have Knock Knock like this kernel?:

http://xdaforums.com/showthread.php?t=2524557
[Galaxy S 4 General] AndreiLux:
No.
[Galaxy S 4 General] ipsuvedi:
:o

Uff..its because of Exynos??

I was also hoping that our Andrei sir will make this work on 9500

So unfortunate !!! :mad:
[Galaxy S 4 General] cmd512:
WTF, knock knock?
[Galaxy S 4 General] ipsuvedi:
:D :p

Its Kernal-

Bricked Hammerhead for Nexus 5 which has Sweep 2 Wake and Knock Knock (Double tap to unlock) features

But unfortunately not for 9500 :o:mad:
[Galaxy S 4 General] halaszk88:
LOL N5 kernel (LCD driver) totally different than i9500... I think this functions more battery drain issue..
[Galaxy S 4 General] ktouy:
Why in the world you want to knock your phone display with your fists? Even better... Twice...

'( • o•)'

Whats going on with the perseus kernel? Nothing new?

I was hoping a new update since the last (15.2) is giving me some issues with the sd card.

...the tiny italic text...
[Galaxy S 4 General] igoa:
OP: ADB as Root

Many people experiencing problems with ADB in new 4.3 firmwares because adb now cannot run as root and Chainfire Insecure ADBD wont work anymore on droid 4.3. Can You switch ro.secure and ro.debuggable in ramdisk so that will provide insecure version of kernel or replace adbd binary to a incecure one?
[Galaxy S 4 General] hunting_:
plz anyone help me how can i flash Perseus kernal with [4.4.2] CyanogenMod 11.0
[Galaxy S 4 General] tlassmohamed:
Hey guys!

I have a question.

I have a battery drain here on the i9500 running 4.4.2 (CarbonROM), and I heard that Perseus kernel is the best one for battery life.

So is it possible to install this kernel on my phone?
[Galaxy S 4 General] polo786:
Hi Guys. I need help. I have a Gt-9500 and would like to flash this kernel. I have rooted my phone and did not trip the nox counter. If i do flash this kernel with Odin will the counter change?

Thanks
[Galaxy S 4 General] iede:
Is it placebo or not? But I feel like 700 (1400) Mhz A7 CPU is much faster than 800 Mhz A15? :eek:

If it's so, then which frequency of A15 has the equal performance with 700 (1400) Mhz A7?

I test with 700 Mhz Max frequency (A15 off) and 800 Mhz Max frequency and it feels much smoother with 700 Mhz Max frequency :confused:

So A15 is s**t??
[Galaxy S 4 General] mw86:
A15 has more memory performance but not at only 800mhz compared to 1400mhz a7. 1200 is a closer match on CPU and should beat a7 anyway since it runs a fuller bandwidth on the ram. I may be saying it wrong but if you compare with Chain fire for example you should see where Java performance is gained and native (cpu) performance.

Problem with A15 is not performance but the performance to power ratio. A53 and A57 cores hopefully show a much more promising battery efficiency even on the higher performance a57.
[Galaxy S 4 General] iede:
So A15 800 Mhz is equal or slightly better that A7 1200 Mhz? Then in my opinion A15 800 or 900 Mhz is worse than A7 1500 Mhz?

Because if I set max cpu only 1500 Mhz A7, the device and UI run smooth perfectly without annoying lag. But if I raise max cpu to 800 Mhz I can see the stutters.

So my conclusion is swithching between 1500 Mhz A7 to 800 Mhz A15 is not smooth enough (because 1500 Mhz A7 faster than 800 Mhz A15), but if we switch from 1200 Mhz A7 to 800 Mhz will be smooth?

*EDIT :

Just realized if I put 1400 Mhz (A7 only) Max and Min then scroll through Synapse it's buttery smooth. But if I put 1600 Mhz (A15 only) Max and Min then it stutters! :eek: What's wrong with this A15 performance core? It can't match eficient core in term of smoothness.

I just wondering if I have faulty A15 or it's because Android 4.3 itself?
[Galaxy S 4 General] devilsdouble:
Why this topic is still not closed?
[Galaxy S 4 General] Cleverfish:
for what reason you want it to be closed?

Sent from my GT-I9500
[Galaxy S 4 General] iede:
Anyone?
[Galaxy S 4 General] mw86:
Almost sounds like your describing the small delay when core clusters switch.

Honestly setting a15 to 1200mhz minimum and scrolling in any app seems to be smoother than the max a7 clock I can utilize. There is more memory bandwidth when a15 is active.
[Galaxy S 4 General] iede:
So this "cluster switch" really make impact on performance right? And one more question do the GPU clock affect the smoothness of the UI or it just only for gamin?

Thanks [MENTION=4745870]mw86[/MENTION] ;)
[Galaxy S 4 General] mw86:
I was just mentioning one point of delay or lag seen on this specific chip Exynos 5410. There are articles on the issue with the CCI but Andrei posted plenty of tidbits about it in the 9500 dev threads. When a core switches since a key part of the Octa core design is broken and disabled some aspects of stuff in memory (take with grain of salt I am no expert) or cache within the CPU is offloaded instead of seemlessly switching between the cores and sharing all the data that is in different areas of the CPU in caches and such... :(

It's harder to notice to be honest. When you referred to a15 frequency being set as minimal mhz and experienced lag scrolling perhaps that's because the data for the app was no longer cached from the cluster switch. Perhaps had you backed out of the app and retried the scrolling would be as smooth as it was for you on a7 in Synapse app.

I am uncertain and I'm sure someone could explain it better.

The only thing in general to really know about this chip is that a7 is very power efficient and a15 is power hungry in any task vs a7. Also there are QOS settings in synapse that make scrolling for example since its considered a screen touch sets a minimum mhz on an a7 upper frequency as well as the internal bus frequency minimum and memory speed minimum... So perhaps some of these aren't being raised as high when just set to a minimum mhz that is only in the a15 range. But more than likely just as they should they raise by load on each of those.

Unless you have an extended battery I would always recommend using A7 as your minimum...

The biggest difference in gpu is noticed in benchmarks if you use stock clocks for gpu and then overclock. The difference in a game from what I've seen is negligible. I would recommend a Max gpu clock of 600mhz to prevent extreme heat or voltage draw but to be honest for heavy gaming 480 is quite fine as Andrei set since Samsung didn't design the chip to by stock standards to even use 533mhz on the gpu in all apps. 350mhz is perfect for most basic games on Android and for just 2d work most cases 266-350 is common to see. You will utilize to some extent your gpu in browsing so keeping it to a near stock 480 is good for the browser. Today keep cool in a basic game just set 350mhz is good in many cases.

Most lag in scrolling is just the time it takes for the textures and materials for the UI to load and all type of aspects effect that... Current CPU speed, gpu speed, I/O performance , ram speed.
[Galaxy S 4 General] iede:
Thanks for detailed explanation :good:, Now I think this 5410 without CCI is stupid implementation because all cache need to be offloaded when migrating to A15 :mad: and this is also what happens in 5420 Note 3 then.

When I am in very very lazy day, I just set my max CPU to 1400 Mhz A7 and GPU to 350. Well in this setup my phone is buttery smooth and it's not hot! That setup is enjoyable I think. Then I want to test A15 performance, yes in benchmark the score is higher than A7 but the UI is laggy (Or maybe this is Touchwiz stupidity :confused:).

Also, I feel no notable difference if I put CPU to 1600 Mhz A15 or 1400 Mhz A7 in term of generated heat. When playing games, both setups generate same heat. So If A7 really for efficiency things where does this heat come from? I'm still wondering this.

At the end, Thanks very much sir for your explanation :)

And for sure Perseus is the best Kernel I've tried on GS3, GN2, and this GS4. Big thanks to AndreiLux :)
[Galaxy S 4 General] mw86:
Thanks and I agree Andrei's kernel was setup logically based on the hardware. He is a very good developer and I plan to donate to him shortly. He has really been under appreciated in that respect.

The 5420 is in now way broken like this 5410. The CCI is not broken and is enabled for it. It still switches cores via cluster migration though as this does instead of HMP heterogeneous multi processing.

Are here about the heat.

http://www.techinsights.com/inside-samsung-galaxy-s4/

Scroll to more on the exynos 5410 look at the pictures of the CPU. The a7 all four cores are a tiny block in the whole CPU. The cortex a15 all four cores and caches take up almost the whole die compared to the a7. The smaller cores use less power. The larger cores use more power but do in fact have far larger performance vs a7. The majority of the heat is from their design but clearly being so large also adds to it and therefore require more power than the smaller cores and the more power the more excess heat created. A CPU isn't exactly 100% efficient. Any voltage that doesn't get utilized actually adds to the heat let alone the load on the cores and the voltage used to keep them stable during it. A7 cores likely waste 3x+ less power under idle and load.

Try this set min mhz to your normal a7 value and Max to a prefered a7 clock. Run this benchmark note the Native score and Java score seperate.

Now run it with a15 800mhz as the minimum and 1600mhz as max. Run the test and compare the two results. What you should see is a boost in the native score by a good amount of points and something like double the Java score vs the slower a7 cores.

If you cap to just a7 and overclock your at about the performance of an international galaxy s3. If you let the full a15 run the performance (CPU only) is higher than the Qualcomm s600 gs4 and a small overclock put performance near a stock clocked S800 like the Qualcomm chip in note 3. The 5420 in note three is same silicon so if you get 1.9ghz stable the performance is close to that 5420 with exception of the higher speed ram...

If you overclock a15 I recommend 1700mhz. Mine can run quad loads in all the benches at up to 1900 mhz a15 especially if I use a lower thermal throttle but I have better overall performance on 1700 since it doesn't hit throttle all that quick. I would stick with the 1400mhz Max for good daily setup for battery and heat. Stock should be fine to be honest in most users setups.

https://play.google.com/store/apps/details?id=eu.chainfire.cfbench
[Galaxy S 4 General] iede:
Yes, and just readed that Galaxy Note 3 Neo Hexa-Core is HMP enabled. But Note 3 not HMP enabled yet. Actually I want to buy the Note 3 but because no Andrei support I stick with my S4 :)

So the heat is basically because of the design, no matter what I put on CPU max clock the heat will be almost similar. Will do the benchmark sir!

For the OC, I try to put 1700 Mhz but sometimes it's reverting back to 1400 Mhz in Synapse. Do I have something wrong with this? :confused:

Most of the time I run on 1400 Mhz A7 + 350 GPU and 1400 Mhz A15 + 480 GPU. Both are very satisfactory :)

Thanks one more time ;)

=========

[MENTION=4167023]AndreiLux[/MENTION] , here is small donation from me : 8FA57302VW469403Y :)

It's small compared to your effort and support for this Device. I've been using your amazing kernel since S3, N2, and S4. Hope you can develop another Perseus for S5 or Note 4 maybe :fingers-crossed:

I love you man! :laugh: