yashsingh1/xdaforums huggingface dataset:
[Galaxy Tab S General] ShadowFlare:
I think people who are experiencing these lags are those who are still on the

original stock ROM, not rooted, and just using the Touchwiz launcher

, and I am one of those people who has not rooted and modified their Tab S.

I'm on S 8.4 LTE and seems to be a Hong Kong version. Out of the box, had micro stuttering issue with any videos with built in and 2 other players from Play Store.Decided to

Factory Reset

and seemed to have fixed video issue, but still noticed micro stuttering when browsing image-heavy sites like theverge.com. Fortunately micro stutter on website browsing don't bother me enough, as long as I can watch my films smoothly.

I did try flashing to another stock ROM of a different region, I picked UK (BTU) since I live there and also because this tab had Hong Kong firmware (TGY). No change, micro stutter on certain sites but videos are still smooth.
[Galaxy Tab S General] mitchellvii:
Video is much improved after the latest OTA.
[Galaxy Tab S General] kenkiller:
Don't really care either way...I'm just stating what I observe. :D Years of using Exynos products do give me this vibe though..... :(

Quite a bit laggier even compared to my 2012 Nexus 7, which is in turn laggier than my Nexus 5, so it's pretty grating.
[Galaxy Tab S General] mitchellvii:
Same here, just saying what I observe. Zero lag, zero stutter on my Exynos tablet.
[Galaxy Tab S General] kenkiller:
Maybe we have a differing definition of lag. I can see lag on your video, but since you claim otherwise.... :D

Anyway, this isn't a **** measuring contest. You believe what you want to. :D
[Galaxy Tab S General] mitchellvii:
You see lag on my video? Which video is that? The only "lag" in any video I've posted is the page load lag caused by javascript that while slightly worse in Touchwiz is unavoidable even on a PC. As far as screen lag or scrolling stutter there is none in my videos.

Here is my video again. Where do you observe lag?

[YOUTUBE]ZFkilkfO22U[/YOUTUBE]

If however you wish to post a video demonstrating this significant Exynos lag you claim, I've added a thread for that and would welcome your input.

With regards to your final comment please try to observe forum rules.
[Galaxy Tab S General] kenkiller:
Browser not moving in sync with finger, sharp jumps to parts of page. Going to homescreen there's a stutter.

Like I said, these are stuff that I'm cursed to be sensitive to, and no amount of you claiming otherwise is going to change my mind, sadly. :( Besides, we've all seen you defending these tablets like your firstborn, no idea why. :)
[Galaxy Tab S General] xRevilatioNx:
I see the same exact lag. Some are just blinded by the love for the device. And I see Nothing wrong with that. " But their perception isn't another person's reality"
[Galaxy Tab S General] reubenskelly1992:
I don't have any of that home button lag or anything. It's go launcher. It's bulky and laggy
[Galaxy Tab S General] mitchellvii:
Yes you are very sensitive as I see none of what you are seeing. As far as defending this tablet, I am simply pointing out when I feel users make broad statements about a technology which are not born out by the predominance of the evidence. I have seen this tablets performance rated as "abysmal", "a joke", "pathetic", "downright awful" and so on by a small minority of users here. I am merely providing counterpoint from my perspective with video evidence.

I don't doubt you see lag. . As you said it is something you are hypersensitive too. . But to draw from that there is something wrong with the Exynos processor is in my opinion too broad of a statement. You see lag, I do not and we can let others judge for themselves. :)

---------- Post added at 05:30 PM ---------- Previous post was at 05:26 PM ----------

Go Launcher does not lag on my tablet. Memory gets eaten up and needs to be cleared out much more often using Nova in my experience. YMMV.
[Galaxy Tab S General] jayochs:
i see all of that lag as well. i'm just like you; oversensitive to lag and drops in framerate.
[Galaxy Tab S General] kenkiller:
Well, I've used 3 generations of Exynos processors, so I can at the very least say I'm not a noob in that area. All 3 exhibited signs of slowdown over time, in some cases, extremely severe delays.

I didn't use those words - But I do see more lag, compared to my current supposedly weaker devices. I spent the same amount of money as everyone else here on these tablets, I doubt you have any more priority/superiority over anyone else here. :(

Is it that hard to accept that what doesn't appear as lag to you might be to someone else? Unless you are the Almighty, pretty sure you can't force your ideals into everyone's skulls. :D

---------- Post added at 05:53 AM ---------- Previous post was at 05:51 AM ----------

It's not just that I'm sensitive to it. I mean, I have 2 Nexus devices right beside that run noticeably better (and one is from 2012), it isn't something that I'm imagining just to prove a point.

And no, I'm not going to film a video just to prove a point - you'll just have to take my word for it. :D
[Galaxy Tab S General] mitchellvii:
Ken,

Please reread my post. I clearly stated that I accept you see lag where I do not.

Anyway, doesn't matter. It's all good. We simply disagree and both made our points clearly.

** For those here who are seeing lag and stutter please remember that while quite sincere, yours is the minority view and by quite a lot. While only 1/3 in this forum have reported it, the % in retail reviews by non-technical users is far less.

It's all a matter of perspective. In college I worked as a roofer. I noticed that wherever I went I was noticing roofs in need of repair or with shoddy workmanship. I had never noticed this before, I just saw the house as a whole. I believe that average users see the Tab S as a whole so any slight lag or stutter is not perceived by them. Excessive lag or stutter of course may still be defective hardware.
[Galaxy Tab S General] kenkiller:
You feel that it is unfair, I feel that it is fair because I've used enough of it over the years. How many Exynos chipset devices have you used?

You can't diminish my POV just because you think it's unfair. I think you're being unfair too! :(

Just give the tablet defending a rest - you'll get nothing out of it. Use it, enjoy it, stop being a keyboard warrior here - or just do less of it. :D I'm certainly enjoying that beautiful screen.

---------- Post added at 06:39 AM ---------- Previous post was at 06:09 AM ----------

Wow. This is sad on so many levels I don't even know what to say. Oh well, I shall let the badly deluded lie. Ciao!
[Galaxy Tab S General] mitchellvii:
I said I do not disagree that you perceive lag. I simply disagree with the conclusion you draw from it.

You believe that perception is not important? They say that fighter pilots and great baseball hitters see at a higher FPS than the average person. The great hitters can actually see the spin of the laces as the ball leaves the pitchers hand and know the pitch. Perhaps those such as yourself who perceive lag where others do not simply have more acute vision than the average person? Perhaps you are seeing frame drops and stutter I simply cannot? Perhaps most people are like me and why so few retail reviews complain of stutter and lag.

Perception is reality.

BTW don't refer to another poster as "deluded". It is a violation of forum policy.

P.S. So in the Tab S Forum is should refrain from defending the Tab S? Lol.
[Galaxy Tab S General] blue13x:
The Tabpro 8.4 can be had for much cheaper and the qualcomm 800 chip is faster
[Galaxy Tab S General] mitchellvii:
An excellent option if you don't mind gray text :) I think it's really about the amoled screen and the deep blacks you can achieve. Other than that I personally like the colors on the a pro models just fine.

In a way it's sad that Android does not allow for gamma adjustments. One could achieve the same blacks on a super lcd tablet as an amoled if they could just dial down the gamma. I have a Windows ultrabook and the blacks are just as deep on that as they are on the Tab S because I reduced the gamma.
[Galaxy Tab S General] ShadowFlare:
It's as simple as: If you're on stock ROM, TouchWiz, and not rooted, you're going to have lag / micro stutters.

This is perhaps why mitchellvii and some others do not see the issue. Let's not bash each other and just move on, this is Samsung and their bloatware, period. You root, you remove bloatware, boom, lag and stutter all gone, as mitchellvii's Tab S 10.5 goes.

Some are sensitive to these lag and stutters, while others are not, or just simply able to live with it. I use to root every new Android device I get, but lately I have little reason to, especially tripping Knox. I may do it much later when Samsung has stopped sending regular OTA updates.
[Galaxy Tab S General] reubenskelly1992:
Well said. This is sums it up perfectly??
[Galaxy Tab S General] mitchellvii:
I think we have one of two possibilities happening. Since the % of those reporting lag and stutter in the actual marketplace (retail reviews) is very small, we either have some defective units in the wild or we have individuals who, like fighter pilots, see things at a higher FPS than most folks. For most of us anything above 30 FPS is butter smooth. For some folks they can notice frame drops up to 60 FPS.

One other possibility is that there is a defective run out there, primarily for the 8.4 model. This would be why someone going to the same store and returning tablets would continue experiencing the problem - the replacements are from the same defective run. The few complaints ive read in retail reviews are not about subtle stutter or lag but really really bad stutter or lag. Of course this is just conjecture but it is plausible as Samsung has announced other small manufacturing defects (i.e., the warped back on 8.4 models).

And of course rooting and debloating helps but I think that in the case of the 8.4 at least, there may be something more at work. Perception or reality? No way to know for sure.
[Galaxy Tab S General] ShadowFlare:
If those people who returned their tablets due to bad stuttering and lag, did they try Factory Reset first?

Unfortunately I Factory Reset mine quite right away as soon as I noticed micro stuttering on videos and didn't test browsing.

On this LTE Tab and my last one (PRO 8.4), the first time I powered the device, it took me straight to home screen, didn't go through the New User Experience wizard, entering usernames etc. I thought it was odd, it's like someone has configured it but I didn't see any other account or evidence of it being used before. Anyone else with LTE PRO and S Tabs noticed this?

That was one of the reasons I wanted to Factory Reset, in case it was preloaded with stuff and causing the issues.
[Galaxy Tab S General] mitchellvii:
Was reading about DVFS throttling on the S4 cutting cpu speeds to half. Not sure if that is still present in the Tab S but if rooted there is an option in Wanam Xposed Advanced Options to disable it. Am testing it now. So far no ill effects.
[Sony Xperia T, TL, TX, V] ahmadfaiz:
so the other day i cant turn on my phone..but today i tried to turn it on and it works!but the thing is the touchscreen cant be used. i already flashed the lates software from pc companion..but it still not work..is this an hardware damage??can anyone help me?
[XDA Assist] captain1452:
Hi everybody. Recently i have bought an Alcatel smartphone : the one touch pop C1( you can see the description in the attachment). So i have a problem: i had root it one time and remove the root access with no problem. Some days after i root it again but i have notice that when i open an app that requires root access supersu allow it but the app can't function normally and it's happen a notification of supersu loop:crying:.. the first time i was thinking that a matter of update supersu but when i have done it supersu tell me that the Su binary needs to be updated when i do the update failed. I think that the root have failed even if supersu is here. I'm a really lost because i don't know what to do. I really need your help please. thanx for the comprehension.

P.S i have a stock rom given by the manufacturer and i don't have a custom recovery because the root failed
[XDA Assist] Perseus:
Since we do not have a Forum for Your device, please pose your query in

Android Development and Hacking > Android General

I see a thread [Guide] Root & CWM for the Alcatel One touch X'Pop 5035D Although it is for a different device, the general principle apply. It may be of help.

Prior removal of the Root has potentially corrupted the Binaries. Reflashing Stock then rooting will help.
[XDA Assist] captain1452:
Thanx for your answer. I'm a newcomer on this forum. So can you tell me please how to reflash my stock rom.
[XDA Assist] Perseus:
Process for each device is different. You may wish to pose that question in the forum I linked.
[JAM, MDA Compact, S100 General] adioph:
Anyone know where to download 1HAndSms? I tried googling it but no luck, please help. Thanks
[One (M7) Q&A, Help & Troubleshooting] wRexz:
Hello Guys,

This is my first posting ;),

my HTC One Dual Sim Stuck on Bootloader, already try install custom recovery (TWRP / CWRM) still cannot operate in Recovery, when select Recovery always Bootloop, this is the bootloader info:

fastboot getvar all

(bootloader) version: 0.5

(bootloader) version-bootloader: 2.27.0000

(bootloader) version-baseband: 1.01.32.0917

(bootloader) version-cpld: None

(bootloader) version-microp: None

(bootloader) version-main: 2.35.707.2

(bootloader) version-misc: PVT SHIP S-ON

(bootloader) serialno: HC3B2MP0xxxx

(bootloader) imei: 3576070593xxxxx

(bootloader) meid: A1000037AExxxx

(bootloader) product: m7cdwg

(bootloader) platform: HBOOT-8064

(bootloader) modelid: PN0751000

(bootloader) cidnum: HTC__044

(bootloader) battery-status: low

(bootloader) battery-voltage: 3475mV

(bootloader) partition-layout: Generic

(bootloader) security: on

(bootloader) build-mode: SHIP

(bootloader) boot-mode: FASTBOOT

(bootloader) commitno-bootloader: dirty-8076a49a

(bootloader) hbootpreupdate: 11

(bootloader) gencheckpt: 0

already try some RUU to recover it but still no hope :(

is there any RUU can recover it?

Please guide me how to recover or root this phone :crying:

:rolleyes:
[One (M7) Q&A, Help & Troubleshooting] yatindroid:
http://xdaforums.com/showthread.php?t=2739126
[One (M7) Q&A, Help & Troubleshooting] wRexz:
Still cannot boot in Recovery mode :crying:

when restart in Recovery Mode, Screen show Entering Recovery....

after that Screen Blank but when I touch the Screen always Vibrate :silly:

is there any other way ?:eek:
[Galaxy S 4 Q&A, Help & Troubleshooting] jody2k:
Hi,

I want to flash new modem for my phone but since I got the new bootloader it doesnt work anymore for flashing with mobile odin

I got the error message: "memory protection in place, skipping flash" after my phone reboots and mobile odin is trying to flash it.

Now... that sucks as with pc odin it just doesnt work, tried it dozens of times with different versions

I hope someone knows a workaway around this as the current modem is bad signal

grtz! jody
[Galaxy S 4 Q&A, Help & Troubleshooting] Lennyz1988:
You can also use Heimdall to flash the modem you want.

Odin should just work though.
[Galaxy S 4 Q&A, Help & Troubleshooting] jody2k:
thank you for your reply but i just tried flashing with Heimdall, it gave an error also

also tried with another pc odin 3.04 version...nothing changes

did also a research for modding the hardware of the antenna but nothing seems te be possible

seems to be stuck wit that modem, so yeah dunno what to do with it :/
[Galaxy S 4 Q&A, Help & Troubleshooting] spamtrash:
With recent ROMs, only Odin 3.09 work correctly.

Secondly, have you tried flashing via recovery?
[Galaxy S 4 Q&A, Help & Troubleshooting] jody2k:
Well i thought flashing modem via recovery didnt work for the I9505? or has something changed
[Galaxy S 4 Q&A, Help & Troubleshooting] spamtrash:
true, CWM does not work... yet. How about odin 3.09?
[Galaxy S 4 Q&A, Help & Troubleshooting] jody2k:
tried all versions even 3.09, even with the proposed technique (flashing then go to download and flashing again)

dont work... dunno why but it doesnt :)
[Galaxy Grand Duos i9082 Q&A, Help & Troubleshootin] torque7:
Sound wierd I know but the happening with my phone is more wierd. Whenever I instal any Performance mod like pure performanceX or vulpix or any my phone became slow app take more time to load this can be clearly seen when in application mangaer it takes to much time to show all my apps but before mod it was so smooth and all apps shows instantly. Antuu benchmark give low scores to RUNTIME & STORAGE I/O after instaling but before both scores high. Frnds help me why this happening to me im using stock bmk3 rooted I want to install these mod.
[Galaxy Grand Duos i9082 Q&A, Help & Troubleshootin] torque7:
Anyone having this problem or im the only one?
[Galaxy Tab 3 Q&A, Help & Troubleshooting] bobkrum:
My wife likes to use the Galaxy Tab 7.0 v3 (Sprint) for videos. Yesterday, when trying to take a video, a message stating she had ONLY???? 4032 MB (4 GIG) left in internal memory prevented her from taking a video several times. Yes, 4 GIG not 4 MB or 4 KB. I had installed a 32 GB SD card which she had never used, as the Sprint Model is a 16 GB memory model. Anyway, last night when I changed the default for storage (to find that you have to scroll down a settings menu to find the storage option...not very intuitive) of Camera/Video to the external card, the message stopped so the immediate problem is solved. However, why would such a message show up (I'm ok with that if there is insufficient space left) and prevent the video from operating, when there was still plenty of storage? Most of her videos are around 200 MB with her longest around 650 MB. Anyone have an answer?:confused::confused: I could not find this issue addressed anywhere on the internet or Samsungs site.
[Sony Ericsson Xperia Mini, Mini Pro, Xperia Pro, A] Vynikal:
Hello community,

for some time I have been trying to make perfomance friendly kernel and ROM. I obviously haven't missed JustArchi's discovery - O3 compiling flags. Although I was first sceptic, after some days of testing (and feedbacks from brave testers) I found out this is truly masterpiece. After adding some kernel tweaks, here is result - OptKernel. Read more...

#include <std_disclaimer.h>
/*
* Your warranty is now void.
*
* I am not responsible for bricked devices, dead SD cards,
* thermonuclear war, or your mom shouting at you, because of you not being
* able to wipe browser history. Please
* do some research if you have any concerns about features included in this ROM
* before flashing it! YOU are choosing to make these modifications, and if
* you point the finger at me for messing up your device, I will laugh at you.
*/

Features:

(*) except for /hardware/qcom/display-caf/libhwcomposer, because of compile errors.

Almost all features are detaily explained in Christopher83's thread (hit thanks to him)

NOTE:

- It is not mandatory to use OptKernel only with this ROM.

The only feature of the ROM are -O3 flags and 4.8 toolchain. All other features are implemented in the kernel.

You can use OptKernel with LX's 1224 build, just flash wifi modules (2rd post). Still, this ROM is really fast, worth a try ;)

- Don't report issues on LX bugtracker if you do so.

- Don't ask for ETA!

I don't know when (if) I'll release! I won't respond, even worse, I'll report you!

- I am not a developer. Everything I've done was only about searching and cherry-picking general improvements.

>>DOWNLOAD<<

SOURCE:

https://github.com/Vynikal/android_kernel_semc_msm7x30

CREDITS:

mikeioannina for base ROM

[MENTION=5092317]Dark Raven[/MENTION] for more-RAM idea

Christopher83 for many ideas and a load of patches

JustArchi for great optimizations

[MENTION=4135482]mdfzhi[/MENTION] for inspiration

Everybody for cherry-picks

+ all brave testers :D
[Sony Ericsson Xperia Mini, Mini Pro, Xperia Pro, A] Vynikal:
FAQ:

Will you build it for <device>?

I have slow pc, so I can't make it for too many devices. You are free to build by yourself.

Why is ROM/kernel so big?

Because -O3 flags are taking additional hunks of data. More info at Archi's thread. Don't worry, it will install fine. ;)

Can I use your ROM as a base?

Yeah, you're clear. Just add me to credits. :)

Will you add <governor/io_sched>?

I personally don't like too many governors, but if you want any, post it here.

Why aren't all those tweaks already in LX CM11?

Because they are experimental and maybe unstable. Mike wants to make stable builds for all.

My wifi is not working!

Flash modules (in Drive folder)

How can I help you?

1. Every problem you face report with logs.

2. If you have enough knowledge, help with improving code on Github.

3. If you want to donate, donate to Mike instead. Without him, this kernel wouldn't exist.
[Sony Ericsson Xperia Mini, Mini Pro, Xperia Pro, A] Vynikal:
CHANGELOG

20141227
- read-ahead set to 1024 KB
- Kernel compiled with Linaro 4.7.4
- Whole ROM "crushed" with pngcrucher - size decreased by (much needed) 20 MB
- Features of LX 20141224

20140906
- free RAM is now at LX level (to see if bugs will disappear)
- in ROM, some perfomance flags enabled
- also in ROM, disabled low_RAM prop
- updated kernel to .103

20140807
- Completely rebased on LX [URL="https://github.com/LegacyXperia/android_kernel_semc_msm7x30/commits/rebase"]rebase branch[/URL], this includes:
- Kernel fully updated to upstream to 3.4.96
- Various fixes
- (By me) More patched to upstream (now .101) and updated all features from LX branch.
- Add some toolchain improvements and compiled with newest SaberMod 4.9
- Fast charge support
- Fix camcorder preview lag (RAM decreased by some MB)
- More undervolt

20140719
- Underclock down to 24 MHz
- Undervolt many frequencies
- VDD interface (allows manually change voltage of separate frequencies)
- Lowered swappiness
- New CPU governors - InteractiveX, OndemandX, Lionheart, Lulzactive, Hyper, Brazilianwax, Intellidemand
- Bumped RAM to 433 MB (lowered SF_SIZE)
- Optimized read/write semaphore
- Used glibc version of memcpy/memmove (much faster than original one)
- power_efficient workqueues
many other things, check [URL="https://github.com/Vynikal/android_kernel_semc_msm7x30/commits/OptKernel"]here[/URL]
all features of LX kernel 0718

20140703
- Initial release

HOW TO BUILD

1. follow this guide up to "repo sync" (don't execute it)

2. Open /.repo/local_manifests/semc.xml (hidden, press Ctrl+H)

Find this line

and change it to this

3. Now sync repositories (depends on your internet connection)

repo sync

4. Run this

curl https://raw.githubusercontent.com/LegacyXperia/local_manifests/cm-11.0/updates.sh > ~/android/system/updates.sh
chmod a+x updates.sh
./updates.sh

And this

cd ~/android/system/vendor/cm
./get-prebuilts

5a. Download source.zip, unpack it to the root of your source and overwrite all.

5b. Run this, to give correct permissions to pngcrusher

chmod a+x build/tools/releasetools/pngcrusher

6a. Download SaberMod 4.8 toolchain and unpack them to /prebuilts/gcc/linux-x86/arm/

http://d-h.st/qsd

6b. For kernel toolchain, use a Linaro 4.7 toolchain (I use Christopher83's). Then put it to the folder above and rename to "arm-eabi-4.8"

7a. Build ROM (takes long time)

. build/envsetup.sh
breakfast <your_device>
brunch <your_device>

7b. To build only kernel (much shorter)

. build/envsetup.sh
breakfast <your_device>
make -j4 bootimage

8. Zip/kernel is in /out/target/product/<your_device> ready to install

If you found this guide wrong, got error or anything, write it down this thread.
[Sony Ericsson Xperia Mini, Mini Pro, Xperia Pro, A] rahimali:
Before somebody else says this, let me have the honor ;)

How about for other MDPI devices too? :D
[Sony Ericsson Xperia Mini, Mini Pro, Xperia Pro, A] Vynikal:
In FAQ
[Sony Ericsson Xperia Mini, Mini Pro, Xperia Pro, A] T3sla:
A detailed guide would be nice...
[Sony Ericsson Xperia Mini, Mini Pro, Xperia Pro, A] cethine:
Thanks. I will try.
[Sony Ericsson Xperia Mini, Mini Pro, Xperia Pro, A] djborek:
Screenshoot pls.