TUNED Kernel for N/O/P/Q - 20201021 - Full charging, no flickering, correct mA values

fbs

Senior Member
Jun 22, 2007
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"A kernel is the central part of an operating system. It manages the operations of the computer and the hardware - most notably memory and CPU."


It should be installed via Recovery (TWRP) over any LOS/AOSP 14/15/16/17-Based ROM. It doesn't need any tweaking with any app, just install it and use it.
BUT you can use Boeffla Config app (available here on the next post) or Kernel Adiutor if you like tweaking.

This kernel uses codes from other kernels, as you'd expect in an open-source community, most notably code from Boeffla, SmartPack, Lolz, Ares and Intelli-kernel

It has UNIQUE features like:
- a different "low memory killer" algorithm wrote by me. Extremely simple, but multiple apps can be killed in a batch!
- zcache is disabled for really *freeing* up memory that was used for caching files
- a different default cpu hotplugger. ALL kernels (even LOS/stock) relies on Qualcomm's vanilla MPDecision, I wrote my own
- Tuned CPU governor (it's the default). It's basically the Interactive governor but with a LOT of tuning to match up with the tuned hotplugger. Did you know stock/los roms uses a multi-socket Interactive governor that doesn't match our phone's cpu?
- many many many MANY compiler optimizations not found on boeffla kernel, LOS or anywhere else!
- MANY unused code simply REMOVED to free memory and CPU. People ADD a lot of stuff on a kernel, I like to remove
- compiled with 2019 GCC version 9.1 (instead of the ancient version 4.9 that EVERY ROM uses)
- Your battery will be charged to "real" 100% like TWRP does

- many unstable cpu and gpu governors and i/o schedulers removed. they only wasted space
- ext4 tweaks
- fair scheduler tweaks
- removed 3 touch boosters code.. why so many? just to raise your clock on every single touch?
- Maple i/o scheduler
- lowered "read ahead" of files and inodes.. why would you read something you don't know you'll need?
- lowered maximum i/o requests for lowering ram usage while writing to SD (internal or external)
- removed a lot of DEBUG code.. why release a software with debugging code built-in?
- removed network protocols we would never use
- removed some compatibility code
- removed dynamic fsync, why would anyone want to enable fsync in any moment anyway? it has been disabled by default linux kernel for decades!!
- decreased commit DELAY of file changes from 20s to 5s, which is linux default. there's no advantage in keeping new/modified data on ram for too long

And common features:
- Max cpu voltage set to 1.4v
- Min cpu clock set to 268mhz instead of 300
- Max cpu clock set to 2995mhz instead of 2457
- Max gpu clock set to 657mhz
- Compiled to speed, not size
- Voltage table for undervolting or overvolting
- Charging level for AC, USB and Wireless charger can be set
- LED fading control + brightness
- zen, noop bfq and sioplus i/o governors


Overall your phone will be snappier, and less battery hungry

You can go back to your rom's default kernel by simply installing rom's .zip again. No need to wipe anything ever!

Telegram Group: https://t.me/tunedkernel

If your voice on recordings or whatsapp calls is too LOW, try my fix for that: CLICK

XDA:DevDB Information
TUNED, a LOS Kernel for S5 - Performance and Battery life together!, ROM for the Samsung Galaxy S5

Contributors
fbs
ROM OS Version: Android 10

Version Information
Status: Stable
Stable Release Date: 2020-10-21

Created 2019-01-28
Last Updated 2020-10-23
 
Last edited:

fbs

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Jun 22, 2007
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Tuned Kernel versions will be attached here, the build date is at the file name.

com.ktoonsez.KTmonitor.1.apk is a little app that will show to you each cpu core clock and gpu clock. Please hold the red button and put at most 100 at "Update Speed". Don't touch the other options because they're buggy!
2.5.20-boeffla-config-v2.apk is the Boeffla Config App, where you can setup most of this kernel's options

klte = SM-G900F, SM-G900M, SM-G900R4, SM-G900R7, SM-G900T, SM-G900V, SM-G900W8, SM-S902L
klteduos = SM-G900FD, SM-G900MD
kltedv = SM-G900I, SM-G900P
kltekor = SM-G900K, SM-G900L, SM-G900S
kltechn = SM-G9006V


CLICK ON THE LINK BELOW WITH YOUR MODEL ON ITS NAME (KLTE or KLTEDUOS or KLTEDV or KLTEKDI or KLTEKOR or KLTECHN) TO DOWNLOAD:
 

Attachments

Last edited:

fbs

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Jun 22, 2007
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Reserved

300119
- possible fix for encrypted devices and f2fs file system (f2fs is buggy on every s5 kernel, don't use this)

150219
- more overclocking on cpu and gpu
- sdfat updated
- tuned hot plugger enhanced
- xor and square root algorithms optimized for ARM
- boot time maybe a little faster with LZ4 compression (that's why kernel seems bigger)
- removed "read-ahead" code from kernel, don't bother changing read_ahead_kb because it won't work
- zcache (not zswap/zram) back on for now

170219
- 266mhz undervoltable again.
- f2fs removed for now
- ext4 read_ahead blks reduced but not eliminated

200219
- tweaks to zcache. still don't know if it's better with it on or off..
- tuned hotplugger will enable a core and put it on maximum freq right away!
- removed CPUBW_HWMON gpu governor
- tweaks to uv_oc table

220219
- compiling with march=armv7-a mtune=cortex-a15

070319
- linux 'fair' scheduler tuning
- zcache disabled
- more inlining while compiling

100319
- more tuning on linux cpu fair scheduler and tuned governor
- revised all kernel configs (klte and variants)

260319
- smooth screen animations
- new f2fs version
- maple scheduler tuned
- compiled with -funroll-loops but less function inlining

030419
- f2fs should be working now
- new assembly optimizations

150519
- boeffla app should work better now when changing cpu hotpluggers and charging voltages
- some governors are back
- using "system_freezable_power_efficient_wq" for disk events
- RoW and Maple schedulers tweaked
- ext4 tweaks
- fair scheduler tweaks

070619
- GCC 9.1 (2019 compiler and toolchains)
- Compiling with -fgraphite -fgraphite-identity -fschedule-fusion -ftree-lrs
- tuned hotplugger with different algorithm

110619
- number of online cores are now working on boeffla app
- boeffla app can raise input charger amperage to 2200
- minor gpu tweaks

200719
- Tuned governor and hotplugger tweaked
- Saving more battery when suspended
- Merging sd reads/writes by default

090819
- tuned governor tweaked
- defaulting to row i/o scheduler, even though benchmarks don't like it :p
- defaulting to "simple_ondemand" gpu governor, tweaked it a lot

100919
- back to xz compressed kernel image
- updates from upstream los16
- same kernel for los14 or 16. thanx Samuel Pascua
- some strncpys changed to memcpys
- tuned governor at 15ms frequency

221019
- updates from upstream los16
- rewrote tuned hotplugger: using even less cpu for itself but enabling cores more often, starting from core 4 instead of 2
- ZRAM enabled with lz4 compression but swappiness at 60% only
- made 1497mhz the default high load speed
- tuned governor at 10ms frequency

101119
- zram changed to vnswap but lower swappiness to save battery
- no more flicker when low brightness (thanks to samuel pascua)
- file system tweaks

201119
- f2fs code stolen from intelli-kernel
- file system tweaks
- default vm_swappiness to 25

170120
- GCC 9.2.1 MUSL 2019-12
- boot time reduced even more
- faster overall performance, lower overall battery drainage
- KTmonitor should show CPU Temperature now
- vnswap should work on Pie
- enforcing selinux after booting
- removed adreno input booster
- set sysctl_vfs_cache_pressure to 50 and vm_swappiness to 40
- ignoring zswap_max_pool_pages

040220
- Working on Q (Android 10)
- AnyKernel update to 3
- Tuned governor with min_sample_time defaulting to 80ms
- Charging till your battery gives 4.4v, or explodes
- UV/OV table matching scaling_frequencies

20200223
- Using higher l2-cache frequencies for performance
- Higher heat "tolerance"
- Battery voltage/power should now be showing correctly at lockscreen
- vnswap wasn't working on Pie but now it is

20200521
- Changed some timers to let the device sleep more (huge battery gain on stand by)
- Tuned governor now being more conservative
- Added back IO Schedulers
- Led control
- LOS updates
- Remove Adreno touch booster
 
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warism100

Senior Member
Jan 8, 2016
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0
I've just upload a new version for klte only for now. TEST with los15.1 and 16 please.. and see if boeffla config app is still working with it..
and please don't flood this thread about the variants
thnx for this kernel ,can't download this kernel
 

warism100

Senior Member
Jan 8, 2016
126
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0
I have installed this kernel for my S5 G900F
with latest lineageos 15.1 and i insttaled beoffla
apk too, the results is great , beoffla apps work
as before
LOS15.1 + kernel + beoffla apk work fine
 
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vlad3647

Senior Member
Feb 28, 2012
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I used before smartpack

---------- Post added 30-01-2019 at 12:03 AM ---------- Previous post was 29-01-2019 at 11:59 PM ----------

Maybe bcx muy phone is pretty old

---------- Post added at 12:36 AM ---------- Previous post was at 12:03 AM ----------

I install this one and so far so good
Kernel Special Features: lighter, optimization-focused

Version Information
Status: Stable
Stable Release Date: 2018-08-22