[Kernel][8.1.0][P-prev] NSFW-kernel R23

[bsmitty83]

OP updated

- R13
- Added Chill governor and re-included sched gov
- Added Thermal Control via sysfs
- updated UKSM ( now works alongside KSM )
- added CAKE net packet scheduler
- added configurable printk ( can be enabled/disabled via sysfs )
/sys/kernel/printk_mode interface
- updated Adreno Idler
- removed powersave governor ( unusable IMO )
- various minor updates


Schedutil has been running well for me . Havent seen a noticeable hit in battery nor have i noticed the boost freq being abused. but I included sched just in case lol .
UKSM will now use ksm's sysfs nodes so you will see both options in a kernel manager app . if you turn one off it turns both off . but you can use all of the tunables

 

[bsmitty83]

Op updated
- R14
- Linux 3.18.93
- reduced max GPU freq to 710MHz ( from 729MHz )

 

[bsmitty83]

Op updated

- R15
- February kernel security updates
- Color control
- re-enabled sched governor

 

[ylovex]

very thanks for your work!
this kernel works well on my device, i can feel it faster and more powersaver.

 

[bsmitty83]

OP updated

- R16
- Linux 3.18.94
- updated Low Memory Killer
- switched back to Linaro GCC

 

[bsmitty83]

OP updated

- R17
- updated wake gesture timing for 1000Hz
- removed direct references to Hz in i2c hwmon gsi ipa mdss & fbdev
- updated Adreno Idler tunables
- updated Slimbus overclock ( from poondog )
- few compiler warning fixes

happy flashing

 

[aLPaSLaN07]

Which kernel manager do you guys use? Does it have its own app maybe?

 

[rubenchu1997]

I have tried to flash this kernel but when I boot up the phone, Google apps start crashing. I have tried to flash it many times and the result was always the same.

 

[bsmitty83]

Which kernel manager do you guys use? Does it have its own app maybe?

I have used just about all of the different apps .
Exkm is what I'm using now.

You can use any of them , I use a root file explorer just as much to edit things via sysfs.

Personally I like synapse , but it's not the most user friendly kernel manager.


Sent from my Pixel XL using Tapatalk

 

[bsmitty83]

I have tried to flash this kernel but when I boot up the phone, Google apps start crashing. I have tried to flash it many times and the result was always the same.

Not sure why my kernel would cause gapps to crash. I'll keep an eye out for any of the same behavior but I haven't had anything like what you are reporting.

Sent from my Pixel XL using Tapatalk

 

[ChongoDroid]

Hey man! I just traded my Marlin for a sailfish. My Marlin was a rma and was always kind of weird. It didn't like the OC very much so I'm hoping this phone is a bit more forgiving ?

I don't think there's a way to check cpu bin # on pixels but fingers crossed that this phone likes OC

I'd love to have a non OC cpu with all the other optimizations such as gpu boost but I understand it's going to be however it works best for you.


Thanks for the kernel.

 

[acidspider]

How do.i install this kernel, just flashing in recovery caused bootloop, what other steps do I need to do

 

[shopealope]

Wanted to try something new and tried out this kernel, I'm pleasantly surprised. It runs very well, great work. And surprisingly my phone worked well with the OC. Thanks for your work!

 

[acidspider]

Wanted to try something new and tried out this kernel, I'm pleasantly surprised. It runs very well, great work. And surprisingly my phone worked well with the OC. Thanks for your work!

Please help how you flashed

 

[shopealope]

Please help how you flashed

I just flashed like any other kernel, flashed stock boot.img and then flashed the kernel. If it's not working for you, it could be that your phone doesn't like the OC much

 

[acidspider]

I just flashed like any other kernel, flashed stock boot.img and then flashed the kernel. If it's not working for you, it could be that your phone doesn't like the OC much

Think it may be not flashing stock boot.img first I'll try that and give a go, do I swap slots in twrp before flashing or anything like that?

 

[ChongoDroid]

I really don't like background processes chewing up resources (it's an ocd pet peeve of mine) and for some reason everytime I flashed this kernel I would get this constant 25-55% fluctuating CPU load while monitoring in ex kernel manager. So after ruling out apps and other tweaks I have found the culprit.

It is either uksm on its own or uksm and some app I have not playing nice together and the result high CPU load on idle with screen on.

I have gone even further and disabled uksm and zram (takes a while) and I have gotten this CPU idle lower than ever.

 

[ChongoDroid]

I have a feeling that uksm misbehaving is the reason why some people aren't able to run this kernel or get reboots.

I can't say definitively without more testing but I have a hunch that the phone is spending too much time in the 2342mhz frequency while uksm is doing it's thing (whether it's operating as intended or not, I'm not sure) and that is causing it to overheat and reboot.

I've lowered the thermal throttling to 55 as well as turning off uksm and zram and I'll report back with my findings after more testing.

Cheers and thanks for the kernel, I'm really glad I got this sorted as I love the smooth scrolling from GPU boost. ?

 

[bsmitty83]

Op updated to R19

- patched up to linux 3.18.98
- I added a non-overclocked version to the Op . Same kernel as the OC version otherwise
- other changes can be found in my github

happy flashing

 

[ChongoDroid]

I flashed 19 over 18 fine, however it seems some process on bootup triggers a reboot. The screen goes black and is non responsive for X amount of time unless you hold both volume buttons and the power button for what it seems like 10 seconds (reboots when you release the button combo)


iirc there was something like this on the Nexus 5 when temperature reaches a certain level and it enters some kind of safe mode and remains powered off for a while. On the Nexus it would have a red notification light and a lot of users thought they were bricked (since power button long press doesn't do anything for quite some time)

Anyways I'm back on 18 and I'll test more later. Unfortunately I couldn't get a log as it became unresponsive immediately after boot.