[KERNEL][3.0.101] BraveKernel Refresh for KitKat - Sony Xperia P, U, Sola, Go

BRAVEKERNEL REFRESH​
Here we go with something (re)fresh, this is the thread of a customized kernel for KitKat ROMs (CM11, AOSX, SlimKat...) with some extra features added.
As always, feedback is welcome and highly valuable
Please if a bug is already reported do not spam the thread reporting it again, and use XDA DevDB tools for posting features requests and bug reports if it's possible :good:
Main features are these:
- Based in 6.2.A.1.100 source code
- Built with Linaro Toolchain 4.9.3 optimized for Cortex A9
- TWRP 2.8.4.0
- FRandom support
- Improvement in I/O latency
- Interactive governor updated to 3.4
- VFP optimizations
- PowerOn Key emulator
- ABBamp Sound Control v2.5.0
- Mali tweaks and controllers
- Governors and I/O schedulers parameters tweaked
- Cycle Charging control
- Real end-of-charge notification
- FSync control (combined dynamic fsync control)
- Voltage OTG control
- Added extra free kbytes tunable
- Swap and zRAM support
- Disabled dynamic debug
- Tweaked readahead size
- More choices of TCP congestions
- Proportional Rate Reduction for TCP
- Fix for scaling of minimum frequency problem
- Built with optimized -O3 & Neon flags
- SLUB memory allocator
- Ramdisk and kernel compressed with LZO
Available CPU governors:
- Powersave
- Userspace
- OnDemand
- Interactive (default)
- InteractiveQ
- Conservative
- OnDemandQ
- PegasusQ
- LulzActiveQ
- AbyssPlug
- HotPlug
- PegasusQPlus
- SmartAssv2
Available I/O schedulers:
- No-op
- Deadline
- CFQ
- ROW
- BFQ
- SIO
- ZEN
- V(R)
- SIO-Plus (default)
Kernel Downloads for KitKat:
BraveKernel Refresh KK-4.4 HubDroid Folder
- v1.3 -
for CM 11.0, AOSX, SlimKat...​
How to install the kernel:
1) Download the kernel zip file to SD card
2) Reboot to recovery
3) Flash the kernel zip file
4) Wipe cache and dalvik cache if you are coming from another kernel
5) Reboot the system
Kernel Manager APP
If you prefer to use a simpler way for installing the kernel you can use this app, it allows you to make a backup of your current kernel and it also displays OTA updates of this kernel, really recommended :good:
Kernel sources (on GitHub):
Development repository of BraveKernel 3.0.101 for KK 4.4
​
Changelog:
Code:
[B]08/02/2015 - BraveKernel Refresh v1.3 for KitKat[/B]
- Fixed random reboots
- Added minfree tweak in crontab
- Enabled JRCU
- Disabled management of not killable processes
[B]01/02/2015 - BraveKernel Refresh v1.2 for KitKat[/B]
- Tweaked adj and minfree values in init.d
- Added memory tweak in crontab
- Disabled JRCU
- Tweaked read_ahead_kb values
[B]25/01/2015 - BraveKernel Refresh v1.1 for KitKat[/B]
- Added F2FS support
- Fixed network arrows and speed information
- Fixed root and storage issues
- Added recovery in FOTA partition support
- Added kexec hardboot support
- Added 3 extra MB of usable RAM
- Added dynamic management of dirty page writebacks
- Added Ultra KSM
- Added entropy tweaks
- Updated BFQ scheduler
- Updated Linaro toolchain
- Improved LZO decompression
- Tweaked LMK
- Improved network speed
- Improved CPU performance
- Improved EXT4 speed
- Improved power management
- Tweaked memory management values
- Enabled clean cache
- Enabled JRCU
[B]21/12/2014 - BraveKernel Refresh v1.0 for KitKat[/B]
- Initial release
Credits and thanks to:
munjeni and cocafe for their awesome work and their kernel sources
AGONTUK for TWRP recovery
CyanogenMod, Kernel.org, Sony, Google, Linaro GCC developers
All my testers
​
XDA:DevDB Information
BraveKernel Refresh, Kernel for the Sony Xperia U
Contributors
Garcia98
Kernel Special Features: Customized kernel 3.0.101 for KK 4.4.x ROM
Version Information
Status: Stable
Current Stable Version: v1.3
Stable Release Date: 2015-02-08
Created 2014-12-24
Last Updated 2015-02-08

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Reserved

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HOW TOs
HOW TO PLAY WITH THIS KERNEL
Terminal emulator or ADB shell is needed.
If any command outputs 'Permission denied', you need su permission.
`???` stands for the number to input.
Change recovery:
To change your recovery:
1.- Open ADB shell or terminal emulator
2.- Download recovery.img
3.- Run:
Code:
su
dd if=recovery.img of=/dev/block/mmcblk0p13
4.- Reboot to recovery
F2FS:
To enable F2FS:
1) Reboot into recovery
2) Touch Wipe option > Advanced Wipe
3) Select the partition you want to convert to F2FS (Data or Cache)
4) Select Repair or Change File System option
5) Touch Change File System and then select F2FS
Boot time:
To check boot time:
Code:
cat /sys/boottime/kernel
CPU governors:
Performance, Interactive (default), Powersave, Userspace, Conservative, InteractiveQ, PegasusQ, HotPlug, OnDemandQ, OnDemand, AbyssPlug, LulzactiveQ, SmartAssv2
- OnDemand has been patched with cpu idle detection.
- Most of custom governors are based on ondemand/interactive.
- OndemandQ/InteractiveQ will hotplug cpu when screen turns off only.
- If you care about the battery life time, choose HotPlug. It hotplugs cpu frequently.
- Interactive updated to linux-android-3.4 (recommended).
- LulzactiveQ, will hotplug CPU1.
I/O schedulers:
SIO, SIO-Plus, VR, BFQ, CFQ, NO-OP, ZEN, ROW, Deadline
- Default IO scheduler: SIO-Plus
- SIO/ROW/SIO-Plus recommended!
FRandom module:
Code:
insmod /lib/modules/frandom.ko
chmod 0666 /dev/frandom
chmod 0666 /dev/erandom
mv /dev/random /dev/random.orig
mv /dev/urandom /dev/urandom.orig
ln -s /dev/frandom /dev/random
ln -s /dev/frandom /dev/urandom
Deepest sleep state:
Stock: 3 Default: 3
Deepest supported is 5.
To change deepest sleep state:
Code:
echo 5 > /d/cpuidle/deepest_state
- HotPlug governors works badly with 5.
- OnDemand works well with 5.
- Please note that it won’t increase the using time but standby time.
- You can add an init.d script to tweak it if you want.
To check the cpuidle state:
Code:
cat /d/cpuidle/stats
zRAM:
zRAM is optimized for Android. It is not lazy anymore. Recommended zRAM instead of SWAP.
Using zRAM will take a little CPU, because it needs to compress/decompress memory.
Recommended compressing about 18% of RAM, about 100MB.
Setup disk size first: (example: 200MB)
Code:
echo $((200 * 1024 * 1024)) > /sys/block/zram0/disksize
- Larger size more RAM will be compressed.
- Too large size might make phone lag
To enable:
Code:
mkswap /dev/block/zram0
swapon /dev/block/zram0
To check how many does it use:
Code:
cat /sys/block/zram0/num_reads
cat /sys/block/zram0/num_writes
cat /proc/meminfo | grep swap
- We can get other info in its sysfs
Swap:
Using a file as swap RAM: (Create a continuity file first)
Code:
su
cd /cache
dd if=/dev/zero of=swapfile bs=1024 count=81920
mkswap swapfile
swapon swapfile
Then we will have 80MB of swap RAM.
Cycle Charging Control:
Similar to BLX by Ezekeel. It can be used to limit the battery charging level.
Example: Limit the battery level at 70% ~ 75%
Enable:
Code:
echo on > /sys/kernel/abb-fg/fg_cyc
Disable:
Code:
echo off > /sys/kernel/abb-fg/fg_cyc
Discharging threshold (battery level %):
Code:
echo dischar=75 > /sys/kernel/abb-fg/fg_cyc
Recharging threshold:
Code:
echo dischar=70 > /sys/kernel/abb-fg/fg_cyc
Real charged notification:
Well, please let me call it notification.
To be honest, it needs to check manually:
Code:
cat /sys/kernel/abb-chargalg/eoc_status
- You can use Root Browser to view these files in /sys/kernel/abb-chargalg
- When it says "First eoc reached", then the UI should show you charged 100%, but it is not the real full charged.
- When it says the real EOC reached, unplug the charger.
POnKey Emulator:
This is the software emulator of power key.
To turn off screen: ( 20 < value(ms) < 520 )
Code:
echo 100 > /sys/kernel/abb-ponkey/emulator
To active the power menu: ( 520 < value(ms) < ∞)
Code:
echo 800 > /sys/kernel/abb-ponkey/emulator
ABBamp Audio:
Please note that listening to too high volume music over 1 hour or more can damage your ears.
Too high volume can make your external speakers/headset overload or damage them.
First, why is it called `AMP`?
Because most of our tweaks are about gain(volume)
Our codec is simple, It doesn't have any hardware EQ (although i want...)
ABBamp sysfs entries are in:
/sys/kernel/abb-codec
- Use Root Browser to view this folder,there are lots files
Tweaks will take effects immediately!
Most tweaks will accept inputs like "on", "off" (no quotes)...
So, say "on" to enable this tweak, then this tweak will apply the value stored/inputed
View (cat) these files, most of them will give you useful information about this tweak.
They will show you the volume in dB of gain
`cd` to /sys/kernel/abb-codec first then do echos, will be more convenient.
AnaGain3 (Headset analog gain path):
Enable tweaks:
Code:
echo on > /sys/kernel/abb-codec/anagain3
Disable tweaks:
Code:
echo off > /sys/kernel/abb-codec/anagain3
Gain control: (min:0 ,max: 15) Lower value,higher volume (default: 0[+4dB])
Code:
echo left=?? > /sys/kernel/abb-codec/anagain3
echo right=?? > /sys/kernel/abb-codec/anagain3
Write both left and right channels:
Code:
echo gain=?? > /sys/kernel/abb-codec/anagain3
HsLDigGain (Headset left digital path gain):
Enable tweaks:
Code:
echo on > /sys/kernel/abb-codec/hsldiggain
Disable tweaks:
Code:
echo off > /sys/kernel/abb-codec/hsldiggain
Gain control: (min:0 ,max: 15) Lower value,higher volume (default: 4[+4dB])
Code:
echo gain=?? > /sys/kernel/abb-codec/hsldiggain
HsRDigGain (Headset right digital path gain):
Enable tweaks:
Code:
echo on > /sys/kernel/abb-codec/hsrdiggain
Disable tweaks:
Code:
echo off > /sys/kernel/abb-codec/hsrdiggain
Gain control: (min:0 ,max: 15) Lower value,higher volume (default: 4[+4dB])
Code:
echo gain=?? > /sys/kernel/abb-codec/hsrdiggain
Headset Volume Table:
value | volume
0.......+8dB (maximum)
1.......+7dB
2.......+6dB
3.......+5dB
4.......+4dB (tweaks default)
5.......+3dB
6.......+2dB
7.......+1dB
8.......+0dB (device default)
>=9....mute
- If set up digital path +4dB, analog gain +4dB, the result will get over +8dB
HsLowPow (Headset driver low power mode):
This lowpow mode is enabled by device normally.
If you want high performance audio instead of LPA(low power audio) you can disable it.
Enable tweaks:
Code:
echo on > /sys/kernel/abb-codec/hslowpow
Disable tweaks:
Code:
echo off > /sys/kernel/abb-codec/hslowpow
To tweak the mode (0: disable LP mode, 1: enable LP mode)
Code:
echo mode=? > /sys/kernel/abb-codec/hslowpow
HsDacLowPow (Headset DAC low power mode):
DAC is Digital-to-Analong Converter.
This lowpow mode is enabled by device normally.
Enable tweaks:
Code:
echo on > /sys/kernel/abb-codec/hsdaclowpow
Disable tweaks:
Code:
echo off > /sys/kernel/abb-codec/hsdaclowpow
To tweak the mode (0: disable LP mode, 1: enable LP mode)
Code:
echo mode=? > /sys/kernel/abb-codec/hsdaclowpow
HsHpEn (Headset high pass filter):
This high pass filter is disabled by device normally.
Enable this can reduce some sub-noise of audio.
Enable tweaks:
Code:
echo on > /sys/kernel/abb-codec/hshpen
Disable tweaks:
Code:
echo off > /sys/kernel/abb-codec/hshpen
To tweak the mode (0: disable highpass filter, 1: enable highpass filter)
Code:
echo mode=? > /sys/kernel/abb-codec/hshepen
Besides, the file anaconf1 will shows you the status of LPA
ClassDHPG (ClassD high-pass gain):
ClassD is a kind of amplifier.
According to the documents, our ClassD only relate to Handsfree(speaker).
This can increase the high frequencies sound of speaker
Enable tweaks:
Code:
echo on > /sys/kernel/abb-codec/classdhpg
Disable tweaks:
Code:
echo off > /sys/kernel/abb-codec/classdhgp
Gain control: (min:0 ,max: 10) higher value,higher gain (default: 10[Max gain])
Code:
echo gain=?? > /sys/kernel/abb-codec/classdhpg
ClassDDithWGain:
Gain control for the white component of dithering filter
Enable tweaks:
Code:
echo on > /sys/kernel/abb-codec/classdwg
Disable tweaks:
Code:
echo off > /sys/kernel/abb-codec/classdwp
Gain control: (min:0 ,max: 10) higher value,higher gain (default: 10[Max gain])
Code:
echo gain=?? > /sys/kernel/abb-codec/classdwg
ADDigGain2:
This is the audio path of mic2(phone mic, not headset mic)
This tweak will enable automatically when mic2 is enabled by device
Enable tweaks:
Code:
echo on > /sys/kernel/abb-codec/addiggain2
Disable tweaks:
Code:
echo off > /sys/kernel/abb-codec/addiggain2
Gain control: (min:0 ,max: 63) lower value, higher gain (default: [+6dB], max: 00[+31dB])
Code:
echo gain=?? > /sys/kernel/abb-codec/addiggain2
EarDigGain:
This is the digital gain of earpiece
Enable tweaks:
Code:
echo on > /sys/kernel/abb-codec/eardiggain
Disable tweaks:
Code:
echo off > /sys/kernel/abb-codec/eardiggain
Gain control: (min:0 ,max: 15) lower value,higher gain (default: 4[+4dB])
Code:
echo gain=?? > /sys/kernel/abb-codec/classdwg
- It uses the same path of HsLDigGain,please check the volume table of HsLDigGain
- +8 dB might crash the sound of earpiece
ShortCirConf:
Code:
This is a misc tweak
View shortcir this file first
[7] EnShortPWD
0: Automatic switch off on short circuit detection is disabled
1: Automatic switch off on short circuit detection is enabled
[6] EarShortDis
0: Short circuit detection on Ear driver enabled
1: Short circuit detection on Ear driver disabled
[5] HsShortDis
0: Short circuit detection on HsL and HsR drivers enabled
1: Short circuit detection on HsL and HsR drivers disabled
[4] HsPullDEn
0: HsL and HsR outputs are in high impedance
1: HsL and HsR outputs are pulled down to ground
[2] HsOscEn (ABBamp enables it by default)
0: The HS drivers use the system clock
1: The HS drivers use a local oscillator (system clock absent: analog path only)
[1] HsFadDis
0: All intermediate steps are applied between two programmed gains (fading)
1: Gain on HS is applied immediately
[0] HsZcdDis
0: HS gain changes on signal zero cross (unless time-out occurs)
1: HS gain is changed without zero cross control
[CODE]echo ?? ?? > /sys/kernel/abb-codec/shortcir
- The first ?? the slot of each option,the second ?? stands for the value to write to this slot
- View shortcir this file,you will get it[/CODE]
AnaConf4:
This interface controls the enables of analog path
We can use it to disable Speaker in kernel level.
So that you don't have to use the "mute all sound" in system settings,
Because, "mute all sound" will also mute Earpiece, which is inconvenient for us in calls.
Command format: Check anaconf4 first, This interface is a bit different from others:
Code:
echo [Index] [Disable?] > anaconf4
To Disable Speaker:
Code:
echo 5 1 > anaconf4
To Enable Speaker:
Code:
echo 5 0 > anaconf4
Headset Charge Pump:
Code:
echo 0 > chargepump to use fixed 1.8V supply.
echo 1 > chargepump to use dynamic voltage supply, lower power cost.
Lower-power Audio Mode:
Code:
echo on > lpa_mode to enable LPA mode
echo vape=0x?? > lpa_mode to adjust Vape voltage used in LPA mode
Experts!:
This method can work on any ab850x codec platform!
cd /d/asoc/U8500-card/ab8500-codec.0
Play music, reduce the volume.
Now we are going to edit the codec registers.
Code:
echo REG VAL > codec_reg
E.G:
AnaGain3:
Code:
echo 0x16 0x00 > codec_reg
HsDigGain: (left/right channel)
Code:
echo 0x4F 0x00 > codec_reg
echo 0x50 0x00 > codec_reg
Disable all lowpow mode:
Code:
echo 0x04 0x00 > codec_reg
- These hacks will restore when codec power off.
Camera LED Flash:
Turn on torch with more brightness, turning this on for a long time will heat up your device, be careful!
Enable/Disable:
Code:
echo 1/0 > /sys/devices/platform/nmk-i2c.2/i2c-2/2-0053/torch_enable
echo 149600 > /sys/devices/platform/nmk-i2c.2/i2c-2/2-0053/torch_current
FSync control:
Get current status:
Code:
cat /sys/kernel/fsync/mode
FSYNC modes:
0: fsync on
1: fsync off
2: fsync dyn
Disable FSYNC:
Code:
echo 1 > /sys/kernel/fsync/mode
Disabling fsync can improve I/O performance, but it can make the data which hasn't been written lose when a sudden power cut occurs.
Enable Dynamic FSYNC:
Code:
echo 2 > /sys/kernel/fsync/mode
- Dynamic fsync will sync all buffers when screen turns off.
- If there is a heavy I/O load, the screen might get stuck for seconds.
Mali GPU:
Mali debug level:
Disabling can speed up a bit
Code:
echo 0 > /sys/module/mali/parameters/mali_debug_level
- Higher level, more messages will be printed in dmesg, system will slow down
Mali L2 max reads control: (Stock:28kb,Default:48kb(max))
Code:
echo xx > /sys/module/mali/parameters/mali_l2_max_read
- Some values will slow down graphics
- If not sure, keep default
Mali PM sampling rate: (Default: 1000ms)
Code:
echo xx > /sys/module/mali/parameters/mali_pm_sampling_rate
Mali PP scheduler tweaks: (Default: disable)
Code:
echo 1 > /sys/module/mali/parameters/mali_pp_scheduler_balance_jobs
- Enabling this, some places will over ahead, choose by yourself
Mali Utilization sampling rate: (Stock:500ms, Default:1000ms)
How often report a mali utilization.
Code:
echo xxx > /sys/module/mali/parameters/mali_utilization_sampling_rate
- Keep this default if unsure.
Mali utilization control:
(Default: low_to_high 192 high_to_low 64)
Our driver will report a mali utilization frequently.
This utilization(range: 0~255) means the load of mali.
If utilization is bigger than low_to_high, driver will request higher hardware performance(highest APE/DDR OPP).
If utilization is smaller than high_to_low, the driver will store the requested OPP(uses low OPP).
OPP can be understood as freq simply.
To check mali utilization values:
Code:
echo 5 > /sys/module/mali/parameters/mali_debug_level
cat /proc/kmsg | grep -i utilization
When it says SIGNAL_HIGH, it will request highest OPP.
When it says SIGNAL_LOW, it will request lowest OPP.
Press Ctrl+C to stop printing.
You can reduce low_to_high to trigger higher OPP requirement.
For smoothness and less powersaving:
Set low_to_high between 100-192.
Code:
echo 120 > mali_utilization_low_to_high
Mali max preemptive allocated max memory size:
Default is 16mb(16*1024*1024), bigger max size more throughput.
But when this value is too big, no more throughput.
For example: 48mb = 48*1024*1024
Code:
echo 50331648 > /sys/module/mali/parameters/pre_allocated_memory_size_max
Mali OS Kernel memory allocation order:
The lower value, the higher preference of allocating OS memory.
The default value is 6, I decreased it to 9 to fix OS memory allocation failure.
If you feel laggy, try 6 (default by driver)
Code:
echo 6 > /sys/module/mali/parameters/mali_oskmem_allocorder
TCP congestions:
Supported:
cubic(default), westwood, highspeed, vegas, veno, yeah
To check all the available options:
Code:
busybox sysctl net.ipv4.tcp_available_congestion_control
To change to other option:
Code:
busybox sysctl -w net.ipv4.tcp_congestion_control=YOU_WANT_TO
Latency - Download - Upload
cubic:
1st run: 15ms - 10,75Mbps - 7,82Mbps
2nd run: 14ms - 10,84Mbps - 8,06Mbps
westwood:
1st run: 11ms - 17,65Mbps - 8,30Mbps
2nd run: 13ms - 13,28Mbps - 8,29Mbps
highspeed:
1st run: 13ms - 10,76Mbps - 7,94Mbps
2nd run: 16ms - 14,42Mbps - 8,52Mbps
vegas:
1st run: 14ms - 8,49Mbps - 6,62Mbps
2nd run: 14ms - 12,00Mbps - 7,07Mbps
veno:
1st run: 13ms - 9,58Mbps - 8,13Mbps
2nd run: 13ms - 8,50Mbps - 7,64Mbps
yeah:
1st run: 14ms - 13,37Mbps - 8,28Mbps
2nd run: 17ms - 13,89Mbps - 8,14Mbps
- In fact, every congestion is designed for different environments.
- Google to learn more!
EGL Driver:
To use Mali hardware egl driver only:
Edit /system/lib/egl.cfg
0 0 android
0 1 mali
To
0 0 mali
Then remove libGLES_android.so
- Recommend to backup these files
- In case it cannot boot,use TWRP file manager to recover changes
Logcat:
Add a init.d script with the following content:
Code:
#!/system/bin/sh
insmod /system/lib/modules/logger.ko
And reboot your phone
Miscellaneous:
To refresh battery stats:
Code:
echo 1 > /sys/kernel/abb-fg/fg_refresh
Almost all tweaks will be restored to default after reboots.
So you can make your tweaks as init.d scripts or make scripts with SManager app to apply them at boot.

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Been using it for a couple of hour, its stable enough on slimkat, no random reboots until now, great!!!
{
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"lightbox_start_slideshow": "Start slideshow",
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Sent from my Xperia U

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no init.d support?!!??
i cannot copy any file in init.d folder .....
*****EDIT****
init.d script works (i've put files inside init.d folder using older bravekernel1.5) but seem to be some problems with built-in superuser app in this new kernel
problem solved flashing supersu instead ....

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I can't get the lowmemkiller whitelist to work with CM11 W37. Instead I'm getting even more launcher redraws. Is there something wrong with my approach? I followed everything given in the OP's Thread.

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really strange things ... with this kernel pinballarcade app completely desappears and sqlite editor app crashing at start... revert back to old bravekernel 1.5 everything back to works and pinballarcade reapears itself...

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..::Matr!x::.. said:
really strange things ... with this kernel pinballarcade app completely desappears and sqlite editor app crashing at start... revert back to old bravekernel 1.5 everything back to works and pinballarcade reapears itself...
Click to expand...
Click to collapse
I'll revert my chages in fstab and check su permissions.
DivyaMamgai said:
I can't get the lowmemkiller whitelist to work with CM11 W37. Instead I'm getting even more launcher redraws. Is there something wrong with my approach? I followed everything given in the OP's Thread.
Click to expand...
Click to collapse
Try Performance Control app for doing it easily: http://forum.xda-developers.com/showthread.php?t=2401988
Sent from my D5503 using XDA Free mobile app

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Random apps like settings, google play services etc started crashing in the background. Then finally I got a random reboot. Happened after 6 hours of use.

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It's a great kernel but it really freaking slows my phone.
I'm using CM11 with ART.
Do this kernel not work well on ART?

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I have not try this kernel, but the premises should be good and better than the stock kernel of CyanogenMod 11, I can not wait to try it! Thanks for your great hard work @Garcia98 , this is really the best Christmas gift I could do us all xperia u. Happy xmas @Garcia98 !

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I will use it again soon.

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I'll suggest to wait next release .... atm there's something not properly working with root & permissions....

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small2cats482 said:
Random apps like settings, google play services etc started crashing in the background. Then finally I got a random reboot. Happened after 6 hours of use.
Click to expand...
Click to collapse
Which ROM are you using and which settings?
jose97ct said:
It's a great kernel but it really freaking slows my phone.
I'm using CM11 with ART.
Do this kernel not work well on ART?
Click to expand...
Click to collapse
I don't recommend ART in KitKat ROMs
________________
Merry Christmas and happy holidays to all of you!

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Garcia98 said:
Which ROM are you using and which settings?
I don't recommend ART in KitKat ROMs
________________
Merry Christmas and happy holidays to all of you!
Click to expand...
Click to collapse
ART worked really fine for me, but I'm back on Dalvik, I miss Xposed and WhatsApp.
On a clean install I'm not having problems, and I'll report battery lasting, general performance and stuff in a few days.
Thank you so much for your work Garcia98 and Merry Christmas to you all!

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After 12h of use the wifi cant wake up, the wifi try to connect to my network but always stop at "Obtaining IP".
I get back to stock kernel, but I've good feelings with it.

---

Garcia98 said:
Which ROM are you using and which settings?
Click to expand...
Click to collapse
I didn't touch any settings. Using Interactive and Row on CM11 weekly 34 or 35 I think.

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Garcia, for some unknown reason, i can't copy init.d scripts into init.d folder. I checked my root permissions, everything's fine. I can delete apps from system. Also when i input frandom commands, it says no such file found. Can you please solve my issue?
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---------- Post added at 11:56 PM ---------- Previous post was at 11:07 PM ----------
I managed to get 50mb of swap file but I've one doubt. It's created in root/cache. Not in sdcard. I know swap file degrades any flash memory but if this degrades the system memory, i won't be able to switch on mobile, right or wrong?
Sent from the Mars to the Earth just to post a reply.

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Vtrendzzy said:
Garcia, for some unknown reason, i can't copy init.d scripts into init.d folder. I checked my root permissions, everything's fine. I can delete apps from system. Also when i input frandom commands, it says no such file found. Can you please solve my issue?
Sent from the Mars to the Earth just to post a reply.
---------- Post added at 11:56 PM ---------- Previous post was at 11:07 PM ----------
I managed to get 50mb of swap file but I've one doubt. It's created in root/cache. Not in sdcard. I know swap file degrades any flash memory but if this degrades the system memory, i won't be able to switch on mobile, right or wrong?
Sent from the Mars to the Earth just to post a reply.
Click to expand...
Click to collapse
Try to create a file in init.d using su and touch /system/etc/init.d/nameofscript commands, also you can try to edit an existing script and add your commands there (dirty solution but the effect will be the same). This issue will be fixed in next release.
About frandom issue it was a typo in instructions, change the path adding /system in the beginning (/system/lib/modules/frandom.ko).
Regarding swap question, it's true that a flash memory is limited to a X number of write cycles, but our phone has just one flash memory of ~8GB, so it doesn't care in which partition you create the swapfile, however you can decrease swappiness to prevent that from happening
Sent from my D5503 using XDA Free mobile app

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Garcia98 said:
Try to create a file in init.d using su and touch /system/etc/init.d/nameofscript commands, also you can try to edit an existing script and add your commands there (dirty solution but the effect will be the same). This issue will be fixed in next release.
About frandom issue it was a typo in instructions, change the path adding /system in the beginning (/system/lib/modules/frandom.ko).
Regarding swap question, it's true that a flash memory is limited to a X number of write cycles, but our phone has just one flash memory of ~8GB, so it doesn't care in which partition you create the swapfile, however you can decrease swappiness to prevent that from happening
Sent from my D5503 using XDA Free mobile app
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Click to collapse
Sent from the Mars to the Earth just to post a reply.