[KERNEL] [G800F/M/Y] Spookcity_Kernel-N (For all 7.x custom ROMS)

spookcity138

Senior Member
Nov 9, 2015
1,828
2,452
153
Eindhoven
I activated the Low memory Killer. In aggressive Mode. Can anybody Tell me in short what is does? Better for battery or worden?
This is really more for memory management. I suppose it could have a benifit for battery as its going to kill apps faster,but I'm unsure how much. I personally don't see the need to set it to aggressive. Our device has decent enough memory,but I suppose we all do different things on our phone so it depends. My best advice: try it out for a bit and see if you notice and benefits or problems.

Sent from my SM-G800F using Tapatalk
 
  • Like
Reactions: Friedensfurz

Oleggluk

Senior Member
Jul 29, 2015
276
117
0
I activated the Low memory Killer. In aggressive Mode. Can anybody Tell me in short what is does? Better for battery or worden?
The higher the value, the more you deprive yourself of RAM. Usually change the last 3 items. Great value reduces multitasking. For example, if you set 300 to the last item, then the applications will start to be unloaded with a remaining memory of 300, increasing from less important to important.
 

friscoboi

Senior Member
Oct 1, 2016
492
117
43
The higher the value, the more you deprive yourself of RAM. Usually change the last 3 items. Great value reduces multitasking. For example, if you set 300 to the last item, then the applications will start to be unloaded with a remaining memory of 300, increasing from less important to important.
Doesnt that mean i get more RAM if Apps are being unloaded?
 

spookcity138

Senior Member
Nov 9, 2015
1,828
2,452
153
Eindhoven
Thanks - is the 1.5Ghz version still overclocking the GPU? I'm just not a fan of overclocking...:D
Well,Samsung had the 1.5ghz in their code for revision 2 and above of the CPU. It was only a matter of unlocking the frequency. So to answer your question,no the 1.5 is not technically overclocked. Samsung just decided to not use it for whatever reason.

Edit:
I now see you wrote GPU. The GPU is still overclocked (from 450mhz to 600mhz) I've yet to notice or hear from anyone about any issues with this though.

Sent from my SM-G800F using Tapatalk
 
Last edited:
  • Like
Reactions: friscoboi

spookcity138

Senior Member
Nov 9, 2015
1,828
2,452
153
Eindhoven
The installation fails on my G800F with
Code:
Unpacking ramdisk failed
After testing a bit more, the installationalsop fails now for v3.0. I am using trwp 3.1.1-1. Is there a known issue that I missed?
That's an interesting error that I have not seen. I know of know issues with TWRP regarding this. Hopefully doing what Oleggluk has suggested will work. If not let me know and I will try to see if I can figure out the issue.
 

elhennig

Senior Member
Feb 21, 2011
956
231
73
That's an interesting error that I have not seen. I know of know issues with TWRP regarding this. Hopefully doing what Oleggluk has suggested will work. If not let me know and I will try to see if I can figure out the issue.
Yes, the Oleggluk's tip worked fine in terms of flashing. Then, however I ran into my old problem with RR 5.8.3 being very fragile in terms of updating the kernel. This resulted in random reboots (warm and cold) which I am trying to solve right now.
 

spookcity138

Senior Member
Nov 9, 2015
1,828
2,452
153
Eindhoven
Yes, the Oleggluk's tip worked fine in terms of flashing. Then, however I ran into my old problem with RR 5.8.3 being very fragile in terms of updating the kernel. This resulted in random reboots (warm and cold) which I am trying to solve right now.
Well I'm glad that worked. I don't know why the other issues. I've experienced none of this and I know Oleggluk is also running RR and he's not reported any real issues to me like this.

Sent from my SM-G800F using Tapatalk
 

elhennig

Senior Member
Feb 21, 2011
956
231
73
Well I'm glad that worked. I don't know why the other issues. I've experienced none of this and I know Oleggluk is also running RR and he's not reported any real issues to me like this.
I did a clean install (wiping system, cache and art) with only RR and open_gapps (from July). This worked well. Then I installed Magisk 13.3 and the system came up nicely, not showing any reboots or other unstable behaviour.
Now I try to install v4.0 and see what happens. I also try to clean the Kernel Adiutor settings (just in case).
 

spookcity138

Senior Member
Nov 9, 2015
1,828
2,452
153
Eindhoven
I did a clean install (wiping system, cache and art) with only RR and open_gapps (from July). This worked well. Then I installed Magisk 13.3 and the system came up nicely, not showing any reboots or other unstable behaviour.
Now I try to install v4.0 and see what happens. I also try to clean the Kernel Adiutor settings (just in case).
Resetting/cleaning kernel adiutor settings is a good idea. I've experienced some strange things after flashing test versions of my kernel that I believe is related to that. Good luck! I hope all works out.

Sent from my SM-G800F using Tapatalk
 

a-dead-trousers

Senior Member
Jul 28, 2016
220
119
43
The installation fails on my G800F with
Code:
Unpacking ramdisk failed
After testing a bit more, the installationalsop fails now for v3.0. I am using trwp 3.1.1-1. Is there a known issue that I missed?
I did a clean install (wiping system, cache and art) with only RR and open_gapps (from July). This worked well. Then I installed Magisk 13.3 and the system came up nicely, not showing any reboots or other unstable behaviour.
Now I try to install v4.0 and see what happens. I also try to clean the Kernel Adiutor settings (just in case).
I can confirm that the kernel can not be installed, while Magisk v13.3 is installed. I had to uninstall Magisk in order to install the Kernel. After that I re-installed Magisk and everything is working as expected.
 

elhennig

Senior Member
Feb 21, 2011
956
231
73
I can confirm that the kernel can not be installed, while Magisk v13.3 is installed. I had to uninstall Magisk in order to install the Kernel. After that I re-installed Magisk and everything is working as expected.
For me it work after cleaning the Kernel Adiutor settings.
@spookcity138, I guess it was the zram being removed from the kernel at least it does not show up anymore in the new settings.
 

spookcity138

Senior Member
Nov 9, 2015
1,828
2,452
153
Eindhoven
For me it work after cleaning the Kernel Adiutor settings.
@spookcity138, I guess it was the zram being removed from the kernel at least it does not show up anymore in the new settings.
Interesting. Thanks to both of you for the info. Not much I can do about it as far as I can think. I'll look into it though. Thanks again and glad you got it sorted.

Edit:
I use Magisk 13.2 without issues, so I suppose something has changed on the Magisk side of things.

Sent from my SM-G800F using Tapatalk
 
Last edited:

elhennig

Senior Member
Feb 21, 2011
956
231
73
Interesting. Thanks to both of you for the info. Not much I can do about it as far as I can think. I'll look into it though. Thanks again and glad you got it sorted.

Edit:
I use Magisk 13.2 without issues, so I suppose something has changed on the Magisk side of things.
I do not have any problems with the installation of the kernel after Magisk is already installed. My phone rund very stable since I did a clean install and only changed a few kernel settings.
I switched to Westwood congestion algorithm and to zen I/O scheduler. This time I did not configure alucard as governor and left hotplug untouched.
 

spookcity138

Senior Member
Nov 9, 2015
1,828
2,452
153
Eindhoven
I do not have any problems with the installation of the kernel after Magisk is already installed. My phone rund very stable since I did a clean install and only changed a few kernel settings.
I switched to Westwood congestion algorithm and to zen I/O scheduler. This time I did not configure alucard as governor and left hotplug untouched.
Glad to hear all is working well. Westwood will be the default TCP congestion from the next build on. It was suppose to be on this build, but I forgot.

Edit:
Oleggluk has pointed out to me that alucard and ondemandplus do not work as they should. You can use them and they cause no issues, but they don't scale the CPU frequencies like they should. I recommend not using these until hopefully I can fix them. Alucard hotplug works properly though.

Sent from my SM-G800F using Tapatalk
 
Last edited:
  • Like
Reactions: elhennig
Our Apps
Get our official app!
The best way to access XDA on your phone
Nav Gestures
Add swipe gestures to any Android
One Handed Mode
Eases uses one hand with your phone