[Galaxy Note II Original Android Development] g.lewarne:
Note2Core Kernel for Galaxy Note II N7100 / N7105 (LTE)​

About this kernel

This kernel is built from pure Samsung GT-N7100 source, with modifications and tweaks to provide the best user experience in reliability, performance and stability. Built upon my experience firstly with NoteCore and then HydraCore for the original Note, as many of you know, I strive for the best

There are 3 versions of each kernel, for the International standard Note II GT-N7100 and the International LTE model GT-N7105.

This kernel has all debuging removed - logcat, android log, kernel log, schedular log, etc etc all disabled. This is for performance reasons, so if you are a developer this kernel is probably not for you

For the moment, exFAT formatted SDCards are not supported

Kernel Versions

There are three variants of the kernel for each device

STANDARD (STD) - 1.6ghz FSync() enabled

OVERCLOCK (OC) - 1.8ghz FSync() enabled

EXTREME (EX) - 1.8ghz FSync() disabled

The standard version, has no modifications to the processor clocks or voltages and can be considered a direct replacement for the stock kernel, and with FSync() enabled is completely stable

The OC kernel automatically scales up to 1.8ghz, with the proven voltages and stability from the perseus kernel (the same frequency table is used), and with FSync() enabled is completely stable

The EX kernel also scales to 1.8ghz, and has FSync() disabled. It offers by far the best possible performance. In rare circumstances you must be aware that this can lead to data corruption and the need to wipe / reflash a rom back to the phone. 99% of people will have no issues with this, as it has been extensively tested and proven on my previous kernel, but the risk is there. Dont go moaning to me if you lose your data and haven't got a nandroid backup!

Kernel Features

- Built from official GT-N7100T source, released 3rd Dec 2012

- 1.6 / 1.8ghz auto scaling

- Optimised VM memory settings, and global readahead

- init.d script support

- CPU Voltage support through 3rd party apps

- Modified GPU DVFS utilisation steps for maximum GPU performance

- No logging / debugging of any kind for higher performance

- Decreased CPU frequency transition latency

- CRC32 slicing-by-8 algorithm

- SLUB allocator

- PEGASUSQ governor (default, others available)

- NOOP schedular, (default, others available)

- lots of other minor tweaks and changes

- ODIN TAR and CWM ZIPS available for all versions

- Custom boot animation support (place animation zip in /system/media)

- TouchWiz roms only

Download - Current Version v2.10

For N7100 model phones - http://www.hecubus.com/filelist.php?dir=xda/note2core/7100

For N7105 (LTE) phones - http://www.hecubus.com/filelist.php?dir=xda/note2core/7105

Changelog

2.10

- Rebuilt from new N7100T source, released Dec 3rd

- All rotation issues in 4.1.2 fixed

- GPU steps reworked for better speed and responsiveness

- Built with linaro 12.11 GCC toolchain, with -O3 optimisation level

- lots of other internal changes

1.06

- Added triangle away support

- Maybe fixed rotation / sensors in newer 4.1.2 TW roms?

1.05

- Fixed all voltage setting and reporting problems (you may need to clear app data in your chosen voltage app)

- Swapped to arm-eabi- 4.4.3 google toolchain rather than arm-linux-androideabi- 4.4.3

- Some minor bigfixes

- Decreased bus frequency increase threshold

1.02

- Fixed all video record problems

- Added custom boot animation support

v1.01

- Fixed video playback issues

- Fixed gameplay issues

- preliminary support for exFAT - works on a usb mounting device

v1.00

- Initial release :)

GPL and Source

You can access my GitHub repositories here: www.github.com/glewarne

There are seperate repositories for the kernel, ramdiscs and build scripts

Credits and Thanks

sswagonman for being the bravest of souls, and a good friend

antiochasylum for his encouragement, help and support and friendship

phjz for coding help

pulser_g2 for his kind assistance with getting me up and running with github

Nazar78 for the bootanimation support scripts

Parts of my code changes can be attributed to the following - Entropy512, franciscofranco, hardcore, gokhanmoral, AndreiLux, Nazar78

If I have forgotten anyone, let me know and ill add you to the list!