Database Users

[Q] S4 i9500 Slower after using "Adam Kernel", Why?

Hi every one,
I tried to post this to the main thread of the kernal, but i could not since i am new member.
I just flash my new S4 I9500 to "Adam Kernel".
Main thing i noticed that the phone respond was better, and i really cant judged about other stuff since i did not use it.
But when i tired to test the phone with Antutu benchmark, noticed that the score was dropped from 281xx to 276xx, even when i am using the Performance instate of on-demand or other battery save options.
I hope if someone can help me to understand this.
Thank you very much,
Emad

rubema said:
Hi every one,
I tried to post this to the main thread of the kernal, but i could not since i am new member.
I just flash my new S4 I9500 to "Adam Kernel".
Main thing i noticed that the phone respond was better, and i really cant judged about other stuff since i did not use it.
But when i tired to test the phone with Antutu benchmark, noticed that the score was dropped from 281xx to 276xx, even when i am using the Performance instate of on-demand or other battery save options.
I hope if someone can help me to understand this.
Thank you very much,
Emad
Click to expand...
Click to collapse
i don't see why you should be upset over benchmarks.
Benchmarks *can* give you an indication of performance, but *nothing* is better than simply making your own objective decision.
Click to expand...
Click to collapse

saywhatt said:
i don't see why you should be upset over benchmarks.
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Click to collapse
Hi,
Thank you for your reply.
Actually i am not upset quz of the benchmark result, all what i want to know in that case, is the new kernal give me less cpu power that the original?
I am only wondering..
Thank you,

its probably due to Governors change.
Adam kernel tweaked cpu governors to be power a power saver than performance. if you have Wanamlite rom you can manualy set cpu governors so you will see better benchmarks

zetlaw said:
its probably due to Governors change.
Adam kernel tweaked cpu governors to be power a power saver than performance. if you have Wanamlite rom you can manualy set cpu governors so you will see better benchmarks
Click to expand...
Click to collapse
Oky i understand it, in that way.
Thank you 1+

Tips to increase performance and increase battery life |Xperia X8/W8

Hey people, this is my first post.
So basically this post is for people still using xperia x8 / w8.
TIPS to increase performance :
1. Install a custom ROM (with a custom kernel). It's no use installing a ROM on stock kernel because it's not very fast and battery life is low too ( I like Minicm7 and Minicm10)
2. After installing the kernel and rom, install a nice launcher. (LauncherPro for gingerbread and nova /apex for ice cream sandwich or jelly bean).
3. Tweak cyanogenmod performance settings : increase vm heap size, allow purging of assets, disable surface dithering, set cpu governor to smartassv2. Overclock if you want but not too much.
4. Use v6 supercharger script. (easy to follow and works great). Do it only if you have custom kernel, because on stock it asks to update busybox which soft bricks the phone).
5. Use autostart manager to remove unnecessary apps from boot.
6. Install apps that you need.
7. Enable "long press to kill apps" in development and kill after you use them like browsers etc.
8. Don't use task killer.
Battery life tips (I assume you are on custom ROM with custom kernel) :
1. Use setcpu and enable profiles. Make the following
A) Screen off - Set Minimum and maximum values of clock the lowest.
B) Battery levels - Choose the maximum to any value below 600 mhz but above 320 when say, the level is less than 40 percent or maximum 480 when the level drops below 50 percent.
2. Make sure you uninstall Dsp manager with titanium backup or root uninstaller.
It sucks lots of battery.
3. Don't set auto brightness.
4. Keep vm heap size to 32.
5. Set governor to on-demand using set cpu for all profiles. AS WELL as for normal usage. (where there are sliders)
6. You may use antutu battery saver. It may or may not work for you.
7. Use v6 supercharger script.
That's it. Press thanks if I helped.
Sent from my E15i using xda app-developers app

I appreciate you for the effort you made.
But there are already many threads about it and also I think that most of the x8 users do have knowledge of these basic things..
Cheers..:beer:
sent from my phone using hands and brain...

dagger said:
I appreciate you for the effort you made.
But there are already many threads about it and also I think that most of the x8 users do have knowledge of these basic things..
Cheers..:beer:
sent from my phone using hands and brain...
Click to expand...
Click to collapse
Sir, Thank you for your review and the beer Yes I am aware of the fact that many people know about it but are tired going through many threads so I compiled a list. That's all.

Exactly this thread will be helpful for noobs much. Nice info :thumbup:
Sent from my XPERIA X8 using Tapatalk 2

@op you may want to review some info. for example, for performance, smartassv2 isn't really the best choice (interactive or ondemand, anyone?). you may also want to remove v6 supercharger since noobs will ultimately ask a lot of questions about it (specially ics/jb users). conversely, ondemand is NOT the best choice if you want to save battery. it has a hair trigger that jumps to max freq and stays there for a long time (like interactive but with different conditions for scaling iirc). there are also lighter launchers than nove/apex/launcherpro. uninstalling or freezing unused apps can also help performance instead of trying to kill them (specially with apps that simply restart themselves). you also have the undervolt option. and updating busybox will not necessarily cause issues if you're on custom kernel. i've updated mine on cm7&10 without issues. i do think gdx (at least on stock kernel) bootloops if you update it. as daggre said, we already have lots of tuts about this, so it would be best to give accurate info or else it will just confuse users.

Hey i heard that if i use my sd card for page file i can increase ram or something like that but is it safe i heard that sd card life will get decreased

KillForFun said:
Hey i heard that if i use my sd card for page file i can increase ram or something like that but is it safe i heard that sd card life will get decreased
Click to expand...
Click to collapse
Yes you can use Swapper 2. Useful only if you use class 6 SD card or above. otherwise no use.

cascabel said:
@op you may want to review some info. for example, for performance, smartassv2 isn't really the best choice (interactive or ondemand, anyone?). you may also want to remove v6 supercharger since noobs will ultimately ask a lot of questions about it (specially ics/jb users). conversely, ondemand is NOT the best choice if you want to save battery. it has a hair trigger that jumps to max freq and stays there for a long time (like interactive but with different conditions for scaling iirc). there are also lighter launchers than nove/apex/launcherpro. uninstalling or freezing unused apps can also help performance instead of trying to kill them (specially with apps that simply restart themselves). you also have the undervolt option. and updating busybox will not necessarily cause issues if you're on custom kernel. i've updated mine on cm7&10 without issues. i do think gdx (at least on stock kernel) bootloops if you update it. as daggre said, we already have lots of tuts about this, so it would be best to give accurate info or else it will just confuse users.
Click to expand...
Click to collapse
Sorry for the mistakes. I wrote smartass v2 because interactive sucks too much battery and isn't practical to use. I would like to delete the thread. I'm new here so please tell me how. I will update the facts and then write

tsinghxda said:
Sorry for the mistakes. I wrote smartass v2 because interactive sucks too much battery and isn't practical to use. I would like to delete the thread. I'm new here so please tell me how. I will update the facts and then write
Click to expand...
Click to collapse
you'll have to ask a mod to delete the thread. why not just update it though? it's a good thread for new guys. just update some info and you're good to go.

cascabel said:
you'll have to ask a mod to delete the thread. why not just update it though? it's a good thread for new guys. just update some info and you're good to go.
Click to expand...
Click to collapse
Alright, I'll update by Monday. Thanks

Haha, thanks for the tips :good:

What's Your Reason for Not Using the Stock Kernel...

I see a lot of people are quick to flash AK, Franco, Tyr, etc before they even give the kernel that comes with the ROM a try.
From my personal experience, the kernel that comes with a ROM is always faster & snappier than aftermarket kernels (no overclocking).
Also, correct me if I'm wrong, but the kernel that comes with the ROM is optimized to perform best with the ROM. Optimization is the main reason why Android is one step behind of iPhones. I don't know about you guys, but I want my phone to be fully optimized which is why I stick with the stock kernel most of the time.

I guess I'm also one of these people who are quick to flash a aftermarket kernel.
But I think the aftermarket ones are the more optimized ones.
Anyway I never had problems with the stock kernels.

I love the extra work devs like Franco and AK do. Sometimes I get some reboots with Franco but overall its a good experience. I just have some Franco loyalty from when I used his kernel on nexus 4 lol best kernel ive ever used. Not sure if I'd say the same about his one plus kernel but if there's any issues I'd blame cm not him

Klobal said:
I guess I'm also one of these people who are quick to flash a aftermarket kernel.
But I think the aftermarket ones are the more optimized ones.
Anyway I never had problems with the stock kernels.
Click to expand...
Click to collapse
I used to be the same way on my older android devices.
It seems like now flashing a kernel is no longer need to improve performance (sorta)
The hardware on the oneplus one is beast & android has come a long way in terms of software.

Because I love the sound control in AK Kernel

jousa11 said:
Because I love the sound control in AK Kernel
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Better than Viper or DSP?

OmegaBlaze said:
Better than Viper or DSP?
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Click to collapse
I use viper as the audio processor AK's kernel just gives good audio gain without any distortion

OmegaBlaze said:
I used to be the same way on my older android devices.
It seems like now flashing a kernel is no longer need to improve performance (sorta)
The hardware on the oneplus one is beast & android has come a long way in terms of software.
Click to expand...
Click to collapse
I believe the same. I get most battery savings from deleting bloat off the phone.

NJGSII said:
I believe the same. I get most battery savings from deleting bloat off the phone.
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Click to collapse
I do the exact same thing. I try and delete all of the unnecessary google play stuff as well as apps I don't use often. And use greenify as well.

jousa11 said:
I use viper as the audio processor AK's kernel just gives good audio gain without any distortion
Click to expand...
Click to collapse
I definitely have to try that out. I usually always skip pass it lol..

I use franco kernel because I get better battery with his kernel (compared to stock), and it's always up-to-date with most of the patches, while with stock you'll have to wait until the next OTA to get some patches.

NJGSII said:
I believe the same. I get most battery savings from deleting bloat off the phone.
Click to expand...
Click to collapse
Can you please name bloat stuff which still comes with Cyanogenmod what should be deleted? Would be helpful for me to get my phone as clean as possible/neccessary.

m4soN said:
Can you please name bloat stuff which still comes with Cyanogenmod what should be deleted? Would be helpful for me to get my phone as clean as possible/neccessary.
Click to expand...
Click to collapse
Meant that with other phones I have

So, there is no stuff which still comes with systems like cyanogenmod which i can delete without getting any trouble? If yes, how do i know which stuff this can be?

Purchased Franco Kernel Updater and if I didn't use a custom kernel (or Franco Kernel) then I spent money on something I'm no longer using.
Also because I'm not a fan of mpdecision.

zephiK said:
Purchased Franco Kernel Updater and if I didn't use a custom kernel (or Franco Kernel) then I spent money on something I'm no longer using.
Also because I'm not a fan of mpdecision.
Click to expand...
Click to collapse
Same here switching between AK and Franco.
Both are a good choice.
But as mentioned before, the hardware of our phone is :good: so no need to flash a aftermarket kernel to gain more performance.

zephiK said:
Purchased Franco Kernel Updater and if I didn't use a custom kernel (or Franco Kernel) then I spent money on something I'm no longer using.
Also because I'm not a fan of mpdecision.
Click to expand...
Click to collapse
Why not? Intelliplug?

OmegaBlaze said:
Why not? Intelliplug?
Click to expand...
Click to collapse
Anything other than mpdecision, I personally prefer Franco's hotplug algorithm which is his own implementation of powering on/off cores.
Mpdecision is Qualcomm's implementation of powering on/off cores.
I personally am not a fan of Intelliplug,
3 - Don't even bring intelliplug on this. With all due respect to faux, that driver is a butchered solution to control the cores. The code is a mess and, in my opinion, just doesn't make any sense. I've worked on my Hotplug driver for years and it works as simple as need be, with appropriate userspace tunables for users to tinker with.
http://forum.xda-developers.com/showpost.php?p=55667033&postcount=3981
Click to expand...
Click to collapse
http://www.reddit.com/r/nexus4/related/158t1i/custom_kernels_a_guide_on_what_you_need_to_know/ has a great reading on mpdecision and why it is not good in their opinion.
--mpdecision--
All Qualcomm based phones have Qualcomm prorprietary userspace binary called "mpdecision" aka m(ake)p(oor)decision. Instead of letting the kernel itself to decide what frequencies and how many cores to run, this "mpdecsion" binary polls the kernel run queue statistics and decides for the whole system the "optimal" frequency and the "optimal" number of cores to use. The concept is fine, except the decision making is done in userspace and it's 100% closed source so there's no way to tweak it and there's a latency (because all userspace binaries needs to "poll" the kernel for the latest information which is slightly delayed). - faux123
ELI5: mpdecision is a proprietary Qualcomm daemon that makes calls to the SoC (the entire chip your phone uses) to manage the cores. The OS (PowerHAL) makes a request to mpdecision and then mpdecision makes a request to the first two cores to ramp them up. - _motley
Click to expand...
Click to collapse

I like to mess with my phone. Simply because I need a kernel fully optimised kernel for the device. Not to say that the developers aren't doing a good job, but in my case, a user sometimes knows better than the creator themselves.
Unless the custom kernels do not satisfy me, I'll revert back to stock.

m4soN said:
So, there is no stuff which still comes with systems like cyanogenmod which i can delete without getting any trouble? If yes, how do i know which stuff this can be?
Click to expand...
Click to collapse
This phone is fairly clean out of the box. About the only stuff worth freezing or deleting would be some of the google play apps if you don't use them. For example Google play books, news stand, or games.

how to increase battery life by 25%

It is simple, tested on my nexus 6, just go to system/bin and delete mpdecision, then install an app that controls kernel, like kernel adiutor, raise min freq of cpu to 883000 mhz, then set apply on boot, reboot phone and enjoy lagfree and smooth super battery life

you are my hero

fedef12evo said:
It is simple, tested on my nexus 6, just go to system/bin and delete mpdecision, then install an app that controls kernel, like kernel adiutor, raise min freq of cpu to 883000 mhz, then set apply on boot, reboot phone and enjoy lagfree and smooth super battery life
Click to expand...
Click to collapse
Isn't enough to just turn off mpdecision in the kernel app?

this only works for stock roms? I can't find any mpdecision file on /system/bin
Sent from my Nexus 6 using Tapatalk

blanco2701 said:
Isn't enough to just turn off mpdecision in the kernel app?
Click to expand...
Click to collapse
if it turn off the 3 sec boost of mpdecision yes
sgloki77 said:
this only works for stock roms? I can't find any mpdecision file on /system/bin
Sent from my Nexus 6 using Tapatalk
Click to expand...
Click to collapse
works on all roms for nexus 6, some file managers cant see mpdecision in system/bin, try it in recovery using twrp

fedef12evo said:
raise min freq of cpu to 883000 mhz
Click to expand...
Click to collapse
Can you tell me if it's the minimum CPU frequency in the CPU tab or in the CPU governor configuration?

blanco2701 said:
Isn't enough to just turn off mpdecision in the kernel app?
Click to expand...
Click to collapse
Disabling in a kernel app will accomplish the same thing. The reason you are seeing a change in battery life is because of the 3 second input boost of MPD. Most of the custom kernels have a generic touch boost driver that is set to 1 second or less to take the place of the mpd boost and increase battery because of the decreased boost time.
MPD works great for some people and not for others. It is greatly dependent on your usage habits. For my typical usage, with mpd on, I average 6-7 hours of screen on time. If you are a gamer, where you are constantly touching the screen, mpd will adversely affect your battery life because of the constant boost.
As a kernel developer, I definitely would not recommend deleting the mpd binary. I would suggest trying a couple of different kernels and/or configurations to accomplish the same results.

lol.. seriously? i guess thats one reason that ive disabled mpdecision for the last 3+ years on whichever nexus i was on, but not the main reason

How can I turn mpd off on ex kernel manager

you don't need a kernel app to disable it BTW. all kernel apps do is provide a ui for you to use. it can be done via a terminal emulator app.. type,
su(press enter)
stop mpdecision(press enter)
and that's it.

I'm using kernel auditor and in the CPU hotplug section the first listing is mp decision. Is that what needs to be disabled?

OK, silly question.. do you know what mpdecision does? do you know what disabling mpdecision does?

simms22 said:
OK, silly question.. do you know what mpdecision does? do you know what disabling mpdecision does?
Click to expand...
Click to collapse
@simms22 good point here. This is good for everyone to know. If you disable mpd without a replacement, you risk all cores not coming back online after deep sleep. Mpd doesn't actually control hotplugging, it controls input boost and onlining of cores.
Sent from my Nexus 6 using Tapatalk

and that's exactly why I disable mpdecision, so I can have all 4 cores active at all times.

buckmarble said:
@simms22 good point here. This is good for everyone to know. If you disable mpd without a replacement, you risk all cores not coming back online after deep sleep. Mpd doesn't actually control hotplugging, it controls input boost and onlining of cores.
Sent from my Nexus 6 using Tapatalk
Click to expand...
Click to collapse
When you say without a replacement what are you referring to? Trying to learn here..

MrMiami81 said:
When you say without a replacement what are you referring to? Trying to learn here..
Click to expand...
Click to collapse
A replacement such as Zen, Mako, Blu_Plug, etc.
Also, (just an FIY) Zen isn't really a hotplug (it keeps all four cores active at all times, unlike Mako, Blu_Plug, etc). It's still lumped in there for some reason.
I highly recommend disabling MPDecision. You know what MPDecision stands for, right? MakePoor Decisions

Face_Plant said:
A replacement such as Zen, Mako, Blu_Plug, etc.
Also, (just an FIY) Zen isn't really a hotplug (it keeps all four cores active at all times, unlike Mako, Blu_Plug, etc). It's still lumped in there for some reason.
I highly recommend disabling MPDecision. You know what MPDecision stands for, right? MakePoor Decisions
Click to expand...
Click to collapse
I'm running elemental x now and I can't find mp decision on kernel auditor. Do you know if it is included with this kernel? If so how would I disable it?

MrMiami81 said:
I'm running elemental x now and I can't find mp decision on kernel auditor. Do you know if it is included with this kernel? If so how would I disable it?
Click to expand...
Click to collapse
i believe its already disabled in elementalx kernel. anyways, you can always use a terminal emulator app, then type..
su(press enter)
stop mpdecision(press enter)
thats all. all kernel apps do is give you a ui to whats already available.

MrMiami81 said:
I'm running elemental x now and I can't find mp decision on kernel auditor. Do you know if it is included with this kernel? If so how would I disable it?
Click to expand...
Click to collapse
Some kernels come with it already removed. Check the features section of the original post in the Elemental X thread or try searching the thread.
I can say from experience that Kernel Auditor doesn't give you access to all of the adjustments in Elemental X. Some features are only accessible through the official Elemental X app, so it might be there, but you can't use Kernel Auditor to adjust it.

Face_Plant said:
Some kernels come with it already removed. Check the features section of the original post in the Elemental X thread or try searching the thread.
I can say from experience that Kernel Auditor doesn't give you access to all of the adjustments in Elemental X. Some features are only accessible through the official Elemental X app, so it might be there, but you can't use Kernel Auditor to adjust it.
Click to expand...
Click to collapse
I just downloaded the elemental x app. I'm gonna go over to the thread now. I appreciate your help

How to Improve Gaming performance on your Moto g4 plus

If any gamers use specific software/apps/tweaks for better gaming experience, please share or any suggestions for rom/kernel. I know our phone is not meant for gaming purpose, but root makes so many things possible. Thanks in advance.

If you flash LineageOS, there is a performance mode which makes gaming seem better than stock but does kill the battery faster though.

Ex kernel with ex kernel manager and you can overclock or control cores.

strongst said:
Ex kernel with ex kernel manager and you can overclock or control cores.
Click to expand...
Click to collapse
Can you suggest a source to learn about controlling cores?

Barbarian king said:
Can you suggest a source to learn about controlling cores?
Click to expand...
Click to collapse
One source: https://androidmodguide.blogspot.com/p/blog-page.html