Disable LOGS (in ram)
/bin/echo 0 4 1 7 > /proc/sys/kernel/printk ## disable kernel logs
/etc/init.d/log disable ## disable system logs
edit "/etc/inittab" and comment out "askconsole"
::sysinit:/etc/init.d/rcS S boot
::shutdown:/etc/init.d/rcS K shutdown
#::askconsole:/bin/ash --login
install Zram Swap
opkg update
opkg install zram-swap