Disable iOS 4 services. Optimize your iPhone, iPod, iPad and save memory.
I know iOS is a super fast and optimized operating system but still there are some services that start but are unuseful for us and consume memory that can.
Disable not needed CentOS services
In many situations we need every bit of resources from our servers. The main resource needed on all systems is RAM. Disabling some unneeded services will free a lot.