yashsingh1/xdaforums huggingface dataset:
[Galaxy Note 3 Exynos Android Development] Crescendo Xenomorph:
The normal v2.1 got several sudden reboot while doing nothing (but screen on)....all settings default kernel...

Another reboot while navigating launcher.... and the live wallpaper FC out of nowhere (never FC before),Christmas HD LW by DualBootGames.....

Device was cool before random reboot happened and also battery life is AWESOME!!
[Galaxy Note 3 Exynos Android Development] iba21:
You didn't remember how works a cpu.. :p

more is the freq more and more will be the power consuption

The chips is developed at one freq with the correct voltage..

Since not all chips have the same purity, developer underclock all chips with the same freq..

So.. if you are luky and you have a good chipz you can:

1) increase the freq at developer original choice

2) undervolt at thid actual freq..

It's IMPOSSIBLE to undervolt AND OVERCLOCK!

Well.. you could undervolt the frequencyes from minfreq to original maxfreq.. but the overclocked freqs doesen't have the possibility to be underclocked..

And.. more is the freq more is the power.. more is the temperature of the chip, more is the instability due to internal resistence

So.. or you undervolt (at same clock) or you overclock (at same voltage)
[Galaxy Note 3 Exynos Android Development] pekaka:
yes,you are right,powers version I lock gpu at 533 mostly for saving power(samsung stock kernel lock at 480M),normall-800M v2.1 is up to 800M indeed
[Galaxy Note 3 Exynos Android Development] karthickkatta:
There is a cluster migration bug ..when the phone is in standby for 5 minutes ..when we turn on the phone it is always on cortex a7 it's not coming to a15 ..We have restart the phone to make it to come to a15
[Galaxy Note 3 Exynos Android Development] fixfox2:
I can assure you... I never forgot how CPU's work :)

Yes, more power is required for the next (higher) frequency step, compared to the previous frequency step.

Since all chips have varying quality, there is a significant factor of safety applied to ensure all chips are reliable.

It is this fact that over-clocking takes advantage of. The likelihood that the limits can be pushed a little further while still maintaining stability.

Yes,

This is where you are wrong! It is not only possible, I actually had this combination working on my Note 2 for months.

Perhaps I shoulsd explain a little better.

Undervolting: each frequency step has voltage set a little lower than manufacturers setting

Overclocking: max frequency set above manufacturers limit.

Overclocking and Undervolting:

Setting each frequency steps voltage a little below manufacturer setting while increasing the max frequency above manufacturer set limit.

This is done all the time... check any of the other custom kernels.

I had my note II overclocked..... with the max voltage below the highest manufacturer set voltage ( below the manuf. max freq voltage )

This worked fine for many months till I sold it for the note 3.

Bottomline.... we push the limits as far as possible while maintaining stability.
[Galaxy Note 3 Exynos Android Development] iba21:
You forgot the thermal dissipation.. less is the temperature of the chip, more isbthe stability

I'm meaning.. would you undervolt the original freqs of the phone? Well, you could do til the stability limity

Whoukd you OC? Well, you could do even with undervolt

Where is the problem?

When kernel reaches the maxfreq overclocked, energy dissipate will be too hight, chip will be heater, and stability goes down

So.. one example?

With only undervolt you could do.. for ex.. -100mv for all freqs.. -150 for low freqs (due to low eneegy dissipation AND low freq of the chip)

If you undervolt you have to decrease that uv.. so.. you may have to force -50mv for all an -75 for low freqs.. OC will be at last at +50 100 than original maxfreq

It depends on how many oc do you want to do.. if, for example, you increase the freq of this 5420.. from 1.9 to 2.1 the gap is minimal.. to 2.3 is huge

You will never ever have stability with huge undervolt with huge overclock

Now you understand?

Get an undervolt of 50mv is unusefull.. the correct way is to GO AT THE FIRST STABLE FREQ

My old note2 could reach about -175mv stable.. -225 on freqs lower 500

But i had a very good chip, buil version 2.. so i could sett RBB from minfreq to 1ghz !!! And FBB from 1 to 1.6!

Sure, with perseus kernel

I don't.know if you know what is the ABB (body bias) of the transistor.. but.. it's one trick to get the phone stable by using current leakage

I repeat.. or you overclock by using the same stock voltages

Or you undervolt by using the same stock freqs

What you did isn't a good OC OR UV.. you undervolted too less, and oc too!

anyway, why would you oc this 5420?? :what:
[Galaxy Note 3 Exynos Android Development] fixfox2:
:)

Hmm..... how do I explain this .....

In my opinion, the defaults are fine, battery life is fine, performance is fine... I have no complaints whatsoever ( with it as it is from the factory).

It's just my inherent need to see continual improvement.

If you could, I would probably ask you to enable HMP .

My note2 was performing so well that I could barely notice the difference between the note2 and the note3. ( In day to day usage, not benchmarks, not games)

I had all voltages lowered ( can't remember by exactly how much) but overclocked by 200Mhz more (1.8Ghz * 4) !!

A true performance boost with no drawbacks whatsoever. I'm looking to do the same with the note 3.

Why? Simply because it it's possible !
[Galaxy Note 3 Exynos Android Development] iba21:
Hmp is impossible to turn on since there isn't the code.. :mad:

Damn samsung
[Galaxy Note 3 Exynos Android Development] ididnotgetabetterid:
Can I safely flash v2.0 power on de ketan rom? How's the battery life and deep sleep? Is this better than stock? I like UV and OC together to be honest.
[Galaxy Note 3 Exynos Android Development] stanley08:
I am using PowerS on Dr.Ketan ROM. AFAIK, battery still draining fast. Base of ROM is bad
[Galaxy Note 3 Exynos Android Development] ididnotgetabetterid:
Thats pretty bad. The note series are known to have the best batteries around. I guess I will just stick to stock as of now unless some hardcore UV n OC kernel comes up.
[Galaxy Note 3 Exynos Android Development] stanley08:
Nice Job mate!
[Galaxy Note 3 Exynos Android Development] pekaka:
Overclock version:-update(test)

2.1g_Overclock_tx628-800M_v3.0-n900-4.3-pekaka
[Galaxy Note 3 Exynos Android Development] karthickkatta:
There is cluster migration bug in all versions ..
[Galaxy Note 3 Exynos Android Development] pekaka:
v3.0 use one day ,no this problem
[Galaxy Note 3 Exynos Android Development] enigmaamit:
Sorry, wrong thread
[Galaxy Note 3 Exynos Android Development] AEZ_BEST:
hi

what version I can use for "N900UBUENG1" Base band?!

icouldn't seen that on the first post.

i am on umut custom rom.
[Galaxy Note 3 Exynos Android Development] yuannovesa:
Are you stay on kitkat rom??

You get use v20 dual or 20 iks cluster
[Galaxy Note 3 Exynos Android Development] nimish77:
working fast and fine but battery draining.
[Galaxy Note 3 Exynos Android Development] deom2i:
Mate,

Does this cluster migration bug responsible for the phone freezing for few seconds? :mad:

I do experience freezing in 2-3sec sometimes and i dont know what cause that!!
[Galaxy Note 3 Exynos Android Development] kadiremrah:
my findings

Hi [MENTION=458056]pekaka[/MENTION],

When open setCpu I see that

*CPU upper limit set to 1900mhz (set it to 2100mhz)

*schleuder CFQ

and then when benchmarking everytime phone goes to hot-reboot

-------

Set it to 2000mhz and

On CPU test with antutu freq is mostly 1800mhz and less 2000mhz

On 3D test score is same with 480mhz result. And time_in_state shows 800mhz used.

480mhz and 800mhz scores are same WHY?

I got only 32380 point on antutu wierd.

-------

Got 33631 point from Antutu (really Low)

2000mHz is stable

---------

Flashed PowerS v.2 back
[Galaxy Note 3 Exynos Android Development] pekaka:
SOC exynos5420 has cooling system control,temp and uv control at last,so high CPU freq or Mail freq don't = high performance,if temp or uv is too high,freq will auto low down,if we can control the temp or uv of high freq at low level,CPU performance will up and up,oherwise will be slow down.

when running at 800M gpu,the temp will be high quickly and >cooling step,so will slow down to 480M

so sometime the problem isn't the kernel,but the ROM you are using.

so the key point is to find out the right temp and uv at high freq,this is my opinion.

Antutu test each time,my score is up to 34400 ,some times up to 34700 on 2.1G

View attachment 2452434
[Galaxy Note 3 Exynos Android Development] kadiremrah:
hi

hi [MENTION=458056]pekaka[/MENTION],

Can we set the termal kick value to higher value. (ex. from 60Celcius to 75Celcius)

Can we use ABB (AdaptiveBodyBias)

Can we use UV and OC at the same time (I am using my S3 with this setting 1600mhz OC [MENTION=5365914]1400[/MENTION]mhz standart kernel voltage)

and .....
[Galaxy Note 3 Exynos Android Development] iba21:
Do you mean the thermal ID?

---------- Post added at 04:20 PM ---------- Previous post was at 04:16 PM ----------

Actual thermal ID if of 85 celsius..

ABB is an invasive way to chose the bulk voltage, it needs a complete driver code for it.. if samsung won't release it..

You can do all what you want.. but if you undervolt, the OC will increase too mouch the temperature, it means, the UV will be too "high" for stability

So.. as i sad.. OR you undervolt OR you overclock

If you do each in the same time, as i sad, when cpu goes to OC values, cpu temperature goes over 60celsius, and, at that temperature the lower voltage will crash the system even if chip is in 250mhz ;)

if you overclock you have to OVERVOLT to became stable..

---------- Post added at 04:29 PM ---------- Previous post was at 04:20 PM ----------

I have the same cluster migration issue.. :(:(:(

http://www.imgur.com/hfQ113z.png

:(

The strange is, it works normal after a reboot.. :eek:
[Galaxy Note 3 Exynos Android Development] pekaka:
A15 switch to A7 ,650M is A7 max_freq.may the systemtuner.apk issue.

I use setcpu to control,set:interactive ,row ,all default
[Galaxy Note 3 Exynos Android Development] karthickkatta:
There is a issue ..that why I go back to stock ...It never switches back to arm 15 after sometime only reboot helps
[Galaxy Note 3 Exynos Android Development] iba21:
It was only the graph test.. if i look into the sysfs file, the maxfreq witch is possible to use is 650mhz.. (1.3ghz of cortexA7)

But.. i used the conservative governor.. i'm tring with the interactive even if i prefere the conservative :mad:

Maybe conservative can create some issue, or there are some issues in conservative code..

If you share the code to github all can try to find the possible error

---------- Post added at 05:15 PM ---------- Previous post was at 05:06 PM ----------

ahaah when i was writing this, come stat issue.. i changed the governor to performance.. and IKS switch doesen't works..

It.seems the problem jumps up with xda app.. it's absolutely STRANGE!

http://www.imgur.com/lycecDT.png

http://www.imgur.com/L2CBjuN.png

http://www.imgur.com/M7yMSlY.png

http://www.imgur.com/15dLZCf.png

It's absolutely a strange thing...

I'll.try without using xda app.. to test.. mmm.. maybe it's a keyboard fault.. i'm using smart keyboard pro..

Well a good news.. the A7 at maxfreq in performance mode doesen't absorbs too mouch energy.. look at the temperature of the cpu!

i hope samsung will release hmp soon.. cortexA7 is quite good for all, only simetimes need an extra boost from an A15 processor to have pure fluid stability.. but.. A7 is quite perfect!
[Galaxy Note 3 Exynos Android Development] iba21:
The problem is still if i delete the xda app..

I'm going to try with the normal not uv version of your kernel
[Galaxy Note 3 Exynos Android Development] karthickkatta:
The problem is on every kernel
[Galaxy Note 3 Exynos Android Development] iba21:
Just try
[Galaxy Note 3 Exynos Android Development] iba21:
I'm with normal version.. about 1h of up.. and now cluster migration works

I'll upload with any other news if i rehave that bug
[Galaxy Note 3 Exynos Android Development] karthickkatta:
And also keep the phone in standby for 3 min and turn on ..and see which core it is in
[Galaxy Note 3 Exynos Android Development] iba21:
Well turned off the screen.. receved 1 whatsapp message.. returned on.. no more over 650mhz :(:(:(:(:(:(:(:(:(

I loved this conservative.. but.. it's impossible with that condiction

I come back to original kernel to see if it could be a rom.issue (i'm on dr ketan)
[Galaxy Note 3 Exynos Android Development] pekaka:
A7 and A15 is merged together,works both,A7 keeps the basic freq(250~650Mhz),A15 keep the high freq(800~1900Mhz),A7 keep phone cool and powersave standby,A15 keeps the phone running smoothly,so sometimes A7,turnback,it will be A15,it is normal,needn't check each time if you phone works smoothly.

so try to use setcpu(because I use it all times,control very well,others may take A7 as default and only),and use interactive governor,others may not suitable,performance/userpace governor will disable cluster.
[Galaxy Note 3 Exynos Android Development] iba21:
well i don't understand why you don't have this issue.. probably there is something in the rom.. because.. performance is a governor, and if i put performance after the reboot, phone goes to 1.9ghz (as it should do)

i know how IKS works.. from 250 to 650 CortexA7 (x2 of kernel freq) and from 700 to 1900 CortexA15.. this is cluster migration

in normal state, governor goes over the 650mhz.. when i look into this "bug", the maxfreq will be 650 even if:

1) sysfs maxfreq of core0-1-2-3 is still 1900

2) IKS maxfreq is still 1900

so.. it's the switching

i'm not the only one.. so.. there is something..

i see you got your personal rom.. maybe that could be one inciput.. i see the problem comes when i shut down the screen.. and.. with my rom i added a deep sleep command in build.prop "pm.sleep_mode=1" should be the problem?
[Galaxy Note 3 Exynos Android Development] kadiremrah:
No Problem

I have no Problem with AlBaROM_MediumFinal.

Sytem shows A7 but all freq. work flawlessly.

I watch the freq. when playing, browsing with CPU Tweaks (3c) from Pen Windows everything work well.

.
[Galaxy Note 3 Exynos Android Development] pekaka:
pm.sleep_mode=1 in my build.prop,not the issue,I use 2.1G -V3.0 very well,no yours' problem,may the hardware is little different?I just miss something while building the kernel?
[Galaxy Note 3 Exynos Android Development] iba21:
i have the n900 version from hong kong.. probably is the same as your since you are chinese

i got a new fresh installation of the rom without pm-sleep_mode=1.. i'll test it with the fresh installation.. maibe it's a rom+kernel fault.. maybe rom doesen't like kernel, or viceversa :p

---------- Post added at 10:31 PM ---------- Previous post was at 10:25 PM ----------

system show A7 what? if A7 is only a name, that's normal.. but.. my situation was this:

all works good for about 20-50minutes, all, governor could chose from 250 to 1900 mhz..

after something.. i don't know what.. the maxfreq will be 650mhz.. but.. in /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq the value still be 1900000.. 1.9ghz

the same for core1-2-3

so.. governor could switch frequency til 1.9ghz

if i go to the IKS folder, in it there are 3 sysfs files.. maxfreq, minfreq, freq table.. well maxfreq is still 1900000..

sure.. if you write 650000 in that maxfreq, the maxfreq will be of 650mhz even if governor maxfreq is another.. it's the IKS module maxfreq..

i tryed to OVERWRITE the 1.9ghz of maxfreq in IKS value.. nothing happens.. only a reboot fix temporaney that issue

really it's strange.. i'll reinstall the UV kernel over this new fresh installation.. if the problem persists, i'll post the kmsg to understand what happens :good:

hope to fix it soon.. i love the conservative governor for this cpu! :(
[Galaxy Note 3 Exynos Android Development] :
so is it safe to install 2.1g_Overclock_tx628-800M_v3.0-n900-4.3-pekaka
[Galaxy Note 3 Exynos Android Development] iba21:
I still have exactly the same issue.. fukking yeah..

I really don't know what happens..

I only could say it's after a screen on with deep sleep function
[Galaxy Note 3 Exynos Android Development] pekaka:
your way is right,the key problem is iks_cpufreq,as I overclock to 2.1G,the max_freq is fixed at 2.1G,neverchange on my phone even oneday sleep,so phone is working perfectly,but 650M for you? I really don't know why? may let me check the source files again to see if anything missing...
[Galaxy Note 3 Exynos Android Development] iba21:
As i sad.. all sysfs are right..

I know what i have to touch to see if there is a limited sysfs value witch locks the 650mhz.. and.. as i sad.. the problem comes after the screen on.. but not.the first..

I tryed to force to write (echo command) the iks maxfreq value.. changed to 500mhz.. still 650mhz of maxfreq even with 500mhz of iks maxfreq (??? It's strange).. changed to 650.. and than 1900.. still 650mhz.. ???

I could try with another rom than the dr.ketan.. should be an incompatibility..

what do you needs? An kmsg of the issue? I could install your kernel, test it till the issue, and share the kmsg log.. maybe.. if you know how to read it.. because.. i know what are sysfs and what are those functions.. but.. i'm not so pro to compile a new kernel and/or modify c++ code of modules..

I could read the c++ code..

Anyway bad strange thing... :(

do you need any direct information from my phone? About this "issue"?

EDIT: tomorrow i'l try to install the overclocked version.. maybe i'll force the maxfreq to 1.9ghz due to i don't need more than 1.9ghz ;)

Anyway maybe tha 2.1g doesen't have that issue..

Now here there is 2AM.. so is late to do tests about it!

Many thanks for your patience!!z

---------- Post added at 03:21 AM ---------- Previous post was at 02:41 AM ----------

http://www.imgur.com/rkdVdzk.png

As you can see.. kernel 2.1g with underclock by sysfs interface, governor performance.. maxfreq of 1.9ghz due to sysfs coice (i changes the sysfs maxfreq value)

Iks maxfreq is still 2.1ghz too see i'm on the oc version..

If i'll have the same issue as i had with other build, i'll post a screen with the same sysfs values and a real clock of 650mhz with performance governor

Only to see the "issue"

---------- Post added at 03:32 AM ---------- Previous post was at 03:21 AM ----------

http://www.imgur.com/NaSt055.png

Look.. no reboot no screen off.. same situation with this 2.1

Governor performance, sysfs of 1.9ghz for cpufreq and 2.1 for ikd.. no cluster migration from A7 to A15...

only a reboot can fix it..

What should be??

Now i DIDN't turn off the screen.. i was surfing on web.. no more freqs over 650mhz with interactive governor.. try with performance.. maxfreq of 650mhz.. as like as i cant migrate to cluster A15..

:(:(:(

So sad... i have to come back to original kernel...
[Galaxy Note 3 Exynos Android Development] pekaka:
Later I will post new kernel for you test,iks-core instead of ikcs-cluster,build#1 is perfectly,now I am build#2 for all information
[Galaxy Note 3 Exynos Android Development] iba21:
I'm testing the goodhanrry kernel, amd, here it seems it doesen't have that issue!

Ot's on by about 2 hours and no issue at all..
[Galaxy Note 3 Exynos Android Development] pekaka:
it is ready to download,test on yourself,good luck
[Galaxy Note 3 Exynos Android Development] iba21:
Many thanks.. i'll as soon as possible

Edit: is the normal 3.0v?
[Galaxy Note 3 Exynos Android Development] pekaka:
yes,iks-core,don't use cluster
[Galaxy Note 3 Exynos Android Development] iba21:
Don't use cluster = only cluster A15??
[Galaxy Note 3 Exynos Android Development] pekaka:
no,still A15+A7,but no bl_switch and INI SKEW freq,I think ,which may cause deep sleep fixed on 650M A7 freq,and need your test to confirm it,because my phone works well on both
[Galaxy Note 3 Exynos Android Development] pekaka:
pls redownload the newest one,3.0-1,former one missing DVF governor,sorry for that:fingers-crossed:
[Galaxy Note 3 Exynos Android Development] mdda7:
good work
[Galaxy Note 3 Exynos Android Development] karthickkatta:
Which version is this ?
[Galaxy Note 3 Exynos Android Development] mdda7:
1.9g_Normal_iks_core-v3.0

and

CRISKELO-Rom
[Galaxy Note 3 Exynos Android Development] Crescendo Xenomorph:
IKS-Core? We got Core-Migration instead of cluster now? WOW!!!
[Galaxy Note 3 Exynos Android Development] pekaka:
update 1.9G-PowerS-_iks_core-v3.0 version
[Galaxy Note 3 Exynos Android Development] mdda7:
Simply what is the difference between :

iks-core

ikcs-cluster

Overclock version
[Galaxy Note 3 Exynos Android Development] pekaka:
iks core and cluster are different gover over cpu,stock kernel use cluster

I recommend iks core which is more powerful on my testing,but all over performance and stability need more testing.

overclock is up maxfreq to 2.1G,only cluster version

if you want powerful performance,install ikscore v3.0

if you want powersave,install powerS
[Galaxy Note 3 Exynos Android Development] mdda7:
Thanks for the answers
[Galaxy Note 3 Exynos Android Development] karthickkatta:
View attachment 2455813 [MENTION=458056]pekaka[/MENTION] why is the gpu not going to highest frequency ? I used heavy games etc ..then too it's not going to highest frequency ...using 1.9 g iks core
[Galaxy Note 3 Exynos Android Development] pekaka:
This version keep all code as stock kernel,gpu locked at 480,so can't pass it for saving power and cooling phone
[Galaxy Note 3 Exynos Android Development] karthickkatta:
This iks core is nice ..Can you make oc with voltage control? And I'm getting 35 k in antutu with iks core ..please help
[Galaxy Note 3 Exynos Android Development] iba21:
What's the difference from iks core and ikcs cluster?

---------- Post added at 02:02 PM ---------- Previous post was at 01:47 PM ----------

Man.. could you try to add this code

https://groups.google.com/a/chromium.org/forum/#!topic/chromium-os-reviews/eiXI_CKTh6A

To the kernel..

It's the CORE MIGRATION..

I'd be a tester..

It should be a great news.. core migration is better than IKS
[Galaxy Note 3 Exynos Android Development] karthickkatta:
Core migration is better ..iks cluster migrates the cores from a7 to a15 vice versa ...iks core pairs up the 8 cores making it to 4 cores..They are just pairing up ...and each pair has its own frequency and migration depending upon usage ...
[Galaxy Note 3 Exynos Android Development] iba21:
exactly.. with cluster migration the switch is off the complete cluster

With core migration there are 4 pairs of 1 A7 and 1 A15.. and.. kernel switch indipendently from those to have a less power draining.. so.. for ex..

1A15 and 3 A7

It has a lower battery drain!!

This is a second liks witch has better informations..

http://git.chromium.org/gitweb/?p=c...b;hb=3792085659ba3a7b556bb70f5cb1a1a2f7e3deb2

It's not HMP.. but.. core migration is a lot better than cluster migration
[Galaxy Note 3 Exynos Android Development] karthickkatta:
Hmm ..awesome ..I hope he implements this ...but I'm sure we will get hmp from Samsung ..I have seen many videos of Samsung testing exynos 5420 hmp