If you want to experience more smoothness, more speed, less lag and always have enough free memory, then check out XDA Recognised Developer Juwe11‘s how to get RAM optimisation script for Android devices.

The script will optimize memory usage on your Android device, finding the best balance between free memory, multitasking, speed of launching apps and system speed.

This script will make your RAM in the best optimization, the best optimization means the best balance between free memory, multitask, speed of launching apps and system speed. It means that you'll still have enough free memory (you'll have free memory as much as you need, because it is not good if you have really a lot of free memory, because Android's work with memory is different from other OS) and you can fully use your multitask, my script doesn't kill your app automatically when you minimize it. Your system and switching between apps or launching apps will be very fast.



Lowmemorykiller values
-Values which mainly affect your multitask and free memory. Values from my script were made for combination of using multitask and still have enough free memory.

VM values
-Very important values which affect your battery consumption, system speed and speed of launching apps.

#!/system/bin/sh
# Copyright© 2011 Juwe11

if [ -e /sys/module/lowmemorykiller/parameters/minfree ]; then
echo "2560,4096,6144,12288,14336,18432" > /sys/module/lowmemorykiller/parameters/minfree
fi

if [ -e /proc/sys/vm/swappiness ]; then
echo "50" > /proc/sys/vm/swappiness
fi

if [ -e /proc/sys/vm/vfs_cache_pressure ]; then
echo "10" > /proc/sys/vm/vfs_cache_pressure
fi

if [ -e /proc/sys/vm/dirty_expire_centisecs ]; then
echo "500" > /proc/sys/vm/dirty_expire_centisecs
fi

if [ -e /proc/sys/vm/dirty_writeback_centisecs ]; then
echo "1000" > /proc/sys/vm/dirty_writeback_centisecs
fi

if [ -e /proc/sys/vm/dirty_ratio ]; then
echo "90" > /proc/sys/vm/dirty_ratio
fi

if [ -e /proc/sys/vm/dirty_background_ratio ]; then
echo "5" > /proc/sys/vm/dirty_background_ratio
fi

1. Method for creating

1) Make file and add this code to it, if you make this script on Windows, set EOL to UNIX, then save file and name it for example "S97ramscript", if you have in your init.d other file with "S97" in name so use "S98" or "S96", etc., the name of file must be without extension

2) Then put your file to /system/etc/init.d with Root Explorer and set perm to 777 (rwxrwxrwx), if you have in your init.d other script for RAM management for example Darky's rambooster, so delete it

3) Reboot your phone


2. Method for creating

1) Download attached file (Juwe_RAM_Script.zip) unzip it and put it to /system/etc/init.d with Root Explorer and set perm to 777 (rwxrwxrwx), if you have in your init.d other script for RAM management for example Darky's rambooster, so delete it

2) Reboot your phone


3. Method for creating

1) Download attached file (Juwe_RAM_Script-CWM.zip) and install it with CWM



How to check if script works

Download app Galaxy Tuner, open it, go to Memory Management and you should see these values:
LMK values
10MB, 16MB, 24MB, 48MB, 56MB, 72MB
VM values
50, 10, 5, 10, 90, 5

Juwe_RAM_Script.zip

Juwe_RAM_Script-CWM.zip

read the original thread

WARNING: INSTALL IT ON YOUR OWN RISK.