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Saturday, March 10, 2018

arter97 kernel for Galaxy S3

arter97 kernel for Galaxy S3



arter97 kernel for Galaxy S3

This kernel is no longer supported actively!


/* Overview */
Based on stock SHV-E210S kernel source
Supports Android 5.1 Lollipop, CyanogenMod 11.0, Samsung Touchwiz based Android 4.4.4 ROM
Upgraded to the latest Linux
Compiled using latest ARM Linaro-toolchain
Speed improvements
Battery improvements
New CPU Governors
New I/O Schedulers
CPU overclock capability
Color inverting by quadriple tapping on home button
Proper dual-boot functionality
Many more ...
/* Details */
Built using Linaro-toolchain 5.1
Properly upgraded to the latest Linux 3.0.101
Dual-boot functionallity for all supported ROMs
SELinux disabled(permissive)
Kernel compression in newly-improved LZO format
Kernel scheduler improvements
Full unaligned access enabled
Improved memcpy, hrtimer, mutex, cpufreq, memory-management, writeback
Optimized RWSEM, crypto, math drivers
Wi-Fi wakelock reduced
BFQ v7r8, SIO, FIFO, VR, ZEN I/O schedulers added
ZZmoove, Intelliactive CPU governors added
Overclock available to 1600MHz
Controlable, kernel-side implementation of slient camera shutter sound
Touch Wake with Knock-On feature
Deadline I/O Scheduler speed improved
Asynchronous I/O backported from Linux 3.6 with speed improvements
Asynchronous Fsync from hTC ported by faux123
Dynamic Fsync from faux123
Networking performance improved
Disabled MMC-CRC for better NAND performance
ARCH_POWER enabled for better power savings
Fading LED control by AndreiLux
Random driver backported from Linux 4.0+
SCHED_AUTOGROUP enabled for superior multitasking experience
Westwood as default TCP congestion control for best networking performance
Optimized CRC32 & SHA-1 algorithm
Proportional Rate Reduction for TCP
Boeffla Sound Engine 1.6.7
Charger control by AndreiLux
FAT32 latency improved
Android logger control
Memory throttling removed
Default file-system mount option with noatime & nodiratime
Proper, full support for f2fs & backported from Linux 4.2
Switchable sharpness control by AndreiLux, AndiP71
Latest mali graphics libraries
Automatic kernel panic log dumper
Boost-boot for better performance
Sdcardfs extended to all supported ROMs
Android 4.4 KitKats extra free kbytes tunables added for better memory managements
ARM_UNWIND enabled for better performance
File-system writeback function backported from Linux 3.4 with latency improvements
Compiler profiles backported from Linux 3.16
Kernel module integrated into the ramdisk for better loading speed
Insecure ADB control
TCPs Initial Congestion Window tunables from Android 4.4.3
Power-efficient workqueues backported from linaro-lsk
Deep-discard-trim; FIDTRIM support for ext4 backported from google-3.4
Entropy hook on storage removed for performance
/* More informations */
Based on stock SHV-E210S kernel source
    Samsung has put massive updates in their Android 4.4 kernel compared with Android 4.1 kernel. By being based on stock SHV-E210S kernel source, arter97 kernel is miles ahead of where other CyanogenMod-based kernels are slowly catching up behind.
Dual-booting
    arter97 kernel implements simple yet seamless multi-boot solution that does not need a dedicated recovery. Its also faster, thanks to raw extracted method instead of slow loop mounted images.
    To start, enter recovery(CWM, PhilZ) and flash arter97-multi-boot.zip. The ZIP files you flash afterwards will be stored in the 2nd-ROM slot(/data/arter97_secondrom) until you exit or restart recovery.
    Reboot back to 1st-ROM, and use newly installed aSwitch to control 2nd-ROM. You cannot select between two ROMs on the initial start-up time.
     * 2nd-ROMs /system partition will be always mounted R/W due to its limitations.
     * Backup & restore will not work for 2nd-ROM. Dont try it unless you want your entire device screwed all over.
     * Do not select data wipe on 2nd-ROM installation! 1st-ROM data might be lost instead.
Advanced mDNIe control
    arter97 kernel offers advanced mDNIe control by AndreiLux, leaving every single controls available for the screen in the palm of your hands.
Knock-On
    arter97 kernel offers full Touch Wake functionality(by Ezekeel & Yank555.lu) with additional Knock-On feature. Within the desired timer you set, Touch Wake will only work by double-tapping.
Touch Wake
    Touch Wake has been improved in arter97 kernel. Not only the implementation of Knock-On feature, you can now set a seperate timer on charge, force to also work on physical button pressed.
Compiler
    arter97 kernel uses the latest Linaro-toolchain. Linux kernels compiler profiles has also been backported from Linux 3.16 for more compiler bug-fixes, performance improvements.
Memory managements
    arter97 kernel is fully upstreamed to the latest Linux 3.0.101. This provides improved stability, performance and memory management. But many developers forget to properly match Samsungs CMA memory management to Linux 3.0.101. arter97 kernel is the only kernel properly upstreamed to Linux 3.0.101 with CMA, meaning better memory management than other kernels.
    If youre using Android 4.4 KitKat, ROM can work together with arter97 kernel which improves memory managements even further.
File-system
    Battery and access speed to /sdcard is also improved by utilizing Samsungs sdcardfs and ditching Googles fuse implementation. Users can disable sdcardfs allowing FolderMount to work properly.
    FAT32 latency is improved, and AIO(Asynchronous I/O) is backported from Linux 3.6 with latency improvements.
f2fs
    arter97 kernel is the first Android kernel(since 2013/08) to feature full f2fs support with selective partitions preferences. If you manage to make a switch from ext4 to f2fs, theoratically, your devices flash storage can perform up-to 2x faster. arter97 kernel also continously backport the latest f2fs from Linux 3.16+. This f2fs will be even more faster, reliable than other Android kernels.
    PhilZ recovery dedicated for f2fs makes users easy to switch. Install kernel and recovery, wipe /data and /cache, thats it.
Boeffla Sound Engine
    Boeffla Sound Engine is the only custom audio engine available in arter97 kernel. Go and download Boeffla Sound Control from Google Play store.
Android logger control
    Android logger, aka logcat can produce a lot of garbage datas even when you dont need them. You can explicitly disable Android logger completely, or make it clear itself when the screen goes off(which is the default).
Mali graphics
    arter97 kernel uses the latest Mali driver available for Samsungs Exynos 4412 phones, r3p2. It also uses the latest Mali blobs from E210S ROM, which is built more recently than GT-I9300 ROMs.
Automatic kernel panic log dumper
    When you use a custom kernel, you may experience unexpected malfunctions like sudden reboots. You should dump the kernel log and report it to the developer to help, but it may be very tiring to manually dumping and sending it. To make your life easier, arter97 kernel automatically dumps kernel log when kernel panic happens, and stores it on /sdcard/arter97.
Kernel-side Camera shutter sound control
    arter97 kernel can force and turn off the speaker while the rear camera is operating. Since this is a kernel-side implementation, it doesnt need any ROM side support. Control available from aTweaks.
Boost-boot
    Boost-boot is a function that can reduce boot-up time up-to 20 seconds. It uses performance CPU governor, no-op I/O scheduler and 1024kB readahead when the device is booting.
aTweaks
    aTweaks is a live-kernel-controller dedicated for arter97 kernel based on STweaks. You can control almost every aspects that arter97 kernel offers. Installing BusyBox before using is recommended.
aSwitch
    aSwitch is a dual-boot settings for arter97 kernel. It can wipe 2nd-ROMs /system, /data and /cache. You can also set /sdcard sharing option within aSwitch.
/* Changelog */
5.0
    pegasusqplus, yankasusq and lulzactiveq CPU governors removed
    pegasusq reworked for better stability
    f2fs updated to Linux 4.2 sources for better stability and performance
    RTL8187 support dropped for better stability
    Network file-systems support dropped for better stability
    Adaptive Body Bias control removed for better stability
    Undervolt control removed for better stability
    Intelli_plug removed for better stability
    Misc commits reverted for better stability
    FPU corruption fixed
    1.7, 1.8 GHz overclock frequency removed
    CFQ I/O Scheduler set as the default for better responsiveness
    Intelliactive set as the default CPU governor
    Partial code of Lazyplug added to intelliactive for better responsiveness
    Zen-tune from Liquorix kernel removed
    Random drivers updated to the latest mainline Linux
    zswap(vnswap) pool percent increased
    AIO regression reverted
    BFQ I/O scheduler updated to v7r8
    LZ4 re-added and updated to be used with vnswap
    Ramdisk updated
    ZZmoove CPU governor updated to v1.0-beta8
4.1
    Now being built with Linaro 5.1 toolchain
    Intelli-plug updated to 4.0
    Various memory improvements (fs/seq_file.c)
    Trim speed on ext4 improved
    Discard option re-enabled for f2fs
        (Jaegeuk Kim says inline kernel handlings for discard is more efficient)
    Userspace trim disabled for f2fs
        (Reduces vold overhead on FITRIM requests)
    Trim fixed for some NAND storage for f2fs
    Support for Samsung Touchwiz Android 4.3 ROMs removed
    Support for Android 5.0 ROMs removed
    Support for Android 5.1 ROMs added
    Installation failure after ROM installation fixed
    Network speed tweaked for LTE models
4.0.3
    Issues with swap configurations fixed
    Misc SELinux logs improved
    Compiler and linker updated
4.0.2
    Latest CyanogenMod 12 ramdisk changes merged
        (Fixes bootloop on latest builds)
4.0.1
    Zen-tune from Liquorix kernel implemented
        (Reduces lags)
    ondemand CPU governor removed
    Few inconsistencies fixed for SHV-E210L
    Hardswap on preload partition added on aTweaks
4.0
    Prevent random enter to recovery
    LPM mode on Android 5.0 Lollipop fixed
    Low-level start-up misc issue fixed
    Revert - "usb cb wake lock", "usb device wake lock" wakelock removed
        (Fixes USB connections)
    Random drivers updated to the latest mainline Linux
    LZO security vulnerability fixed
    Entropy hook on storage removed for performance
    f2fs updated to the latest mainline Linux
    Android 5.0 Lollipop ramdisk updated
4.0-beta6
    f2fs updated to the latest mainline Linux
    Durpy defconfig changes removed
    SHV-E210S_KK_Opensource_Update2.zip merged
    Hybrid support for different HWC implemented
        (Fixes camera initialization issues)
    MobiCore disabled for AOSP
        (Memory optimizations)
    "usb cb wake lock", "usb device wake lock" wakelock removed
        (Experimental workarounds)
4.0-beta5
    f2fs updated to the latest mainline Linux
    sdcardfs extended and enabled with Android 5.0 Lollipop
    PegasusQ set as the default CPU governor for stability
    firelock and full-frequency-usage removed from PegasusQ for performance
    Android 5.0 Lollipop ramdisk updated
    Stability on charging with phone turned off improved
    PhilZ Touch recovery now uses standard VOLD mount points
4.0-beta4
    Removed GPS blobs from 4.0-beta3
        (Fixes GPS on AOSP - you may need to reinstall the entire ROM to fix GPS)
4.0-beta3
    f2fs updated to the latest mainline Linux
    Some cutting-edge compiler optimizations tuned down for stability
    Added L1/L2 cache size paramater optimizations (by JustArchi)
    Support for Android 5.0 reworked
    Support for Android 5.0 Lollipop VPN added
    Support for Android 5.0 Lollipop power consumption calculation added
    Support for Android 5.0 Lollipop idletimer enabled
    Deadline / noop set as the default I/O schedulers
    Incall boost increased to 1000 MHz for more stability
    Ext4 mount option journal_async_commit removed
    Ext4 barrier enabled for better stability
    Now uses TRIM from userspace instead of kernel for performance
    Boeffla sound engine updated to 1.6.7
    Second-phase touch booster removed for stability
    Intell-plug touch booster removed for stability
    BFQ I/O scheduler updated to v7r7
    Installs and uses the working HWC from NamelessROM if on AOSP
    Enables s3cfb fencing on AOSP
        (Fixes graphical glitches)
    MHL sound output issue fixed
    Vnswap on AOSP switch added
    Added GPS blobs from E210SKSUKNK3
    Recovery updated to PhilZ Touch 6.59.0
    Misc performance and stability improvements
    Support for AOSP Android 4.3 ROMs removed
4.0-beta2
    Major speed improvements via new ARM instructions set
    interactive CPU governor re-based to android-3.4
        (Fixes frequency stuck issue)
    ZZmoove v1.0-beta2
    ROW I/O scheduler removed
    Misc block commits reverted
        (Improves overall stability)
  &

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