[CLOSED][r11] arter97 kernel for Poco F1 - Xiaomi Poco F1 ROMs, Kernels, Recoveries, & Other

{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
arter97 kernel for Poco F1​
/* Details */
Latest CAF msm-4.9 kernel fully merged
This kernel contains more cutting-edge changes from Qualcomm than the regular sdm845 tag
Latest Linux 4.9 subversion merged
Use CONFIG_HZ = 300
- This changes context switching interval from 10ms to 3.33ms
- Pixel used this for years and Google recommends other vendors to do the same for fewer jitters
Memory management improved(from Pixel 2 & 3)
Pixel's lowmemorykiller used
Scheduler commits cherry-picked from Pixel 3
Timer optimizations
RTL8152/8153 USB LAN adapter support
Permissive SELinux
Passes SafetyNet
Built with -O3 speed optimizations
Built with latest GCC
Westwood as default TCP network congestion control
UFS optimizations
Entropy hook on storage removed
Latest mainline f2fs support with GC fixes
CFQ I/O scheduler backported from mainline
Systemless installation (the kernel itself doesn't touch /system or /vendor)
Modules support disabled for lighter kernel
WireGuard support
Removed RTB(interrupt) logging entirely
/* Development */
I do not own a Poco F1.
This was developed by sharing most of the bits from my OnePlus 6 and Razer Phone 2 kernel.
I won't be doing device-specific changes to this kernel(e.g. improvements to the touch panel drivers) until I get my hands on an actual device.
This also means this kernel is/will be developed conservatively.
If you're interested in contributing to a fundraiser for me to get a Poco F1, please check post #2.
/* f2fs */
This kernel fully supports f2fs for /data and I encourage everyone to use f2fs with my kernel for better performance.
See here as to why you might want f2fs.
To use f2fs, download zip files from http://arter97.com/browse/f2fs
Flash f2fs_tools_for_twrp.zip from TWRP. This won’t format your /data partition.
This will replace TWRP's f2fs tools with the latest version and pass the correct parameter to mkfs.f2fs, which is necessary.
This needs to be done everytime you enter TWRP, if you want to re-format to f2fs.
After formatting, or flashing a new ROM or an OTA, /vendor’s fstab needs to be changed.
Flash f2fs_fstab.zip to convert fstab to f2fs again. This won’t format your /data partition.
/* Disclaimer */
Your warranty is now void.
I am not responsible for bricked devices, dead SD cards,
thermonuclear war, or you getting fired because the alarm app failed. Please
do some research if you have any concerns about features included in this kernel
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. Hard. A lot.
/* Thanks to */
TheCrazyLex
xboxfanj
Tim Murray
RenderZenith
nathanchance - for android-linux-stable
/* Instructions */
You can use the zip file to flash the kernel from your existing TWRP recovery.
If you don't have TWRP installed already, you can use the img file to flash the kernel directly from your PC via fastboot.
Both methods will install both kernel and modified TWRP recovery.
You can check if the modified TWRP is installed by looking at TWRP's version name.
It should say "arter97".
/* Downloads and links */
Removed
Kernel source
XDA:DevDB Information
arter97 kernel for Poco F1, Kernel for the Xiaomi Poco F1
Contributors
arter97
Kernel Special Features:
Version Information
Status: Testing
Created 2019-04-07
Last Updated 2020-01-26

---

Reserved 1

---

/* Changelog */
r11
LA.UM.8.3.r1-06300-sdm845.0 merged
Warning pop-up on Android 10 fixed (Should pass SafetyNet now too)
r10
Novatek touch firmware updated to 10.3.7.0 (by Akhil)
Separate Android 10 kernel released
Swap compressor backend(LZ4) updated
LA.UM.8.3.r1-06100-sdm845.0 merged
Linux v4.9.196 merged
Wi-Fi drivers updated to 5.1.1.74O
Latest f2fs-stable merged
r9
Linux v4.9.189 merged
Wi-Fi drivers updated to 5.1.1.73W
LA.UM.7.3.r1-08200-sdm845.0 merged
LA.UM.7.8.r1-06900-SDM710.0 merged (includes various scheduler improvements)
r8
kcal support added
r7
Linux v4.9.186 merged
LA.UM.7.3.r1-07900-sdm845.0 merged
LE.UM.3.2.1-00910-SDX24 merged
Faulty Low Memory Killer fixed to work better and resolve wake-up delays
Google Assistant Voice Match fixed
General scheduler improvements backported
Virtual memory allocator performance improved
Task scheduler debugging disabled properly for lower overheads
Many parts of the kernel converted to use hotplug state machine
WireGuard updated to 20190702
Bunch of memory allocations from various subsystems were reworked to perform much better (thanks to Sultan) (total of 46 patches)
Debugging features disabled for Adreno GPU drivers to improve performance
Rewritten IOMMU by Sultan reverted to resolve screen flickerings
Switched to zswap/vnswap approach
- This was done since vast majority of Poco F1 users are using 6GB RAM variant
- Ditched conventional zram swap approach and taken zswap+vnswap for more efficient memory operations
- Backported zsmalloc memory allocator from mainline
- Backported zswap compressed page cache from mainline
- Samsung's Galaxy S9 memory modifications merged for better swapping efficiency tuned for Android
r6
Linux v4.9.180 merged
Wi-Fi drivers updated to 5.1.1.72J
Fixed several memory management issues from previous releases
- This fixes multiple issues including performance regressions(wake-up delays, etc) and radio malfunctions
- Thanks to @habylab for testing multiple builds prior to release)
Latest f2fs-stable merged
LA.UM.7.8.c3-06800-QCS605.0 merged
LE.UM.3.2.1-18400-SDX24 merged
Removed f2fs debug tracing codes added by Qualcomm
qseecom performance improved
Re-enabled kernel tracers for avoiding janks
32-bit vDSO added for improving performance on arm32 programs
Audio kernel updated LA.UM.7.3.r1-07800-sdm845.0
r5b1
Linux v4.9.175 merged
Wi-Fi drivers updated to 5.1.1.71H
Latest f2fs-stable merged
LA.UM.7.3.r1-07400-sdm845.0 merged
LA.UM.7.8.r3-01400-SDM710.0 merged
Fixed a Qualcomm issue that prevented audio-app stune creation
Merged various patches from Proton kernel by kdrag0n to lower overheads and improve responsiveness (thanks to kdrag0n, sultanxda and ab123321)
Now VLA-free
RCU boost enabled for better responsiveness
New patches made to f2fs for more efficient GC and trim
FBE(File Based Encryption) now works with f2fs
r4
Wi-Fi drivers updated to 5.1.1.71C
Disabled some debugging options to improve performance
r3
Reverted a problematic Wi-Fi drivers optimization causing Wi-Fi to not turn on after some period of time
r2
Merged LineageOS' LED configuration to fix LED blinking
r1
Initial release

---

/* Known issues */
It's extremely unlikely for me to be able to fix this without having physical access to the device.
Android Auto is reportedly unusable

---

Reserved 4

---

Please follow https://twitter.com/arter97 for updates.

---

Nice another kernel from @arter97.. testing mode now!

---

Great to see you here.

---

@arter97 please put in the title if for MIUI or both.

---

Yoooo welcome here bro

---

madsponge26 said:
@arter97 please put in the title if for MIUI or both.
Click to expand...
Click to collapse
What's the point?
I'm yet to see an incompatible ROM.
I don't want to clutter up the thread title like how some others do.

---

madsponge26 said:
@arter97 please put in the title if for MIUI or both.
Click to expand...
Click to collapse
It works great on miui too!

---

Can lkt be used on this? Or is it recommended to retain stock settings?
Sent from my Poco F1 using XDA Labs

---

The best Dev bro .. very happy that you develop the poco F1

---

dr460nf1r3 said:
Can lkt be used on this? Or is it recommended to retain stock settings?
Sent from my Poco F1 using XDA Labs
Click to expand...
Click to collapse
Not sure what lkt is, but I recommend not using a kernel manager at all if that's what you were wondering.

---

arter97 said:
Not sure what lkt is, but I recommend not using a kernel manager at all if that's what you were wondering.
Click to expand...
Click to collapse
https://forum.xda-developers.com/apps/magisk/xz-lxt-1-0-insane-battery-life-12h-sot-t3700688
Its a magisk module that some kernel devs recommend using e.g. malakas
Sent from my Poco F1 using XDA Labs

---

Lovely to see this kernel for our poco.. This feels faster than anything out there. Hope people donate to U

---

Thz
this is surprising, I hope it will reach the necessary collection

---

dr460nf1r3 said:
https://forum.xda-developers.com/apps/magisk/xz-lxt-1-0-insane-battery-life-12h-sot-t3700688
Its a magisk module that some kernel devs recommend using e.g. malakas
Sent from my Poco F1 using XDA Labs
Click to expand...
Click to collapse
YMMV but I generally don't recommend this kind of stuffs.
No offense to the developer.

---

Thanks For Your Work.
Good To See You Here.