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LoginThis is the SpeedMod kernel for the Samsung Galaxy S2 GT-I9100.
This kernel aims to be stable, fast and have good battery life. Current features:
Root and CWM:
- Automatically installs root (su)
- CWM 4.0.1.4 recovery
Screen and misc tweaks:
- MDNIE screen sharpness tuning (improves text readability)
- MDNIE color tuning (reduces over-saturation of color)
- Touchscreen sensitivity fix from vitalij (set to 10)
- init.d support
Performance:
- CPU governor tweaks: increase responsiveness
- IO tweaks
- Read ahead tweaks
- Updated to jhash3
- Compiled with O3 optimizations using latest codesourcery 2011.03 toolchain
- Switched to SLAB instead of SLUB
- Enabled CONFIG_RCU_FAST_NO_HZ
Turned off unnecessary logging for better smoothness and efficiency:
- Disabled Android Debug Logger / logcat
- Disabled Kernel debug
- Disabled Samsung debug
- Disabled CPU frequency translation stats
- Disabled CONFIG_FTRACE
More features will be added along the way.
Latest changes:
K1-T16:
More optimizations:
- Switched to CONFIG_TREE_PREEMPT_RCU
- Switched to SLAB instead of SLUB
- Disabled CONFIG_FTRACE
K1-T17:
- Switched back to CONFIG_TREE_RCU with CONFIG_RCU_FAST_NO_HZ (seems to be smoother)
K1-T18:
- Switched to Linaro 2011-07 GCC 4.5 toolchain
- Enabled GCC Graphite optimizations
- K1-T18b re-released to show version in About phone menu
K1-T19:
- Different compiler optimization options
