After some months of testing, FullHost is pleased to announce that LiteSpeed has been successfully deployed on all of our Shared, Enterprise, and Reseller Servers, and is available to be added on to any VPS and Dedicated Server in our network.
LiteSpeed is an Apache drop in replacement, completely compatible with Apache features, including mod_rewrite, .htaccess, and mod_security. The main benefit with LiteSpeed is speed, and because of how it is an event driven architecture versus your traditional process driven one, you will not only benefit from the speed, but it can handle more traffic and connections with less memory and CPU consumption.
In a process driven architecture, every connection it gets starts a new process, so the more connections that are being made, the more processes that are started, drawing the appropriate resources inside of each connection. It is a simple way to handle things, but can consume more CPU and memory when a server is getting more and more connections, causing the load to increase and ultimately slow down all the processes.
The fundamental difference to how the event driven architecture with LiteSpeed works, is that all the connections are handled in only a few processes. Instead of creating a new process for each connection that comes in, these processes stay open and handle all new events. So it essentially does not worry about creating new processes, but react to them when they occur. This is exactly how static content is handled.
Web applications and database processes are handled slightly differently, with LiteSpeed fielding the requests and sending them along to the external processes that create the responses, all the while continuing to handle new processes including static content requests. When the response is retrieved from the external process, it knows to deliver that callback to the one that requested it. The API also keeps a watch on the number of processes that get created by web applications and database processes, reusing them instead of creating new ones each time.
As one can see by this illustration, LiteSpeed is a much more efficient way to handle connections, and is much more lightweight on drawing on CPU and memory usage which allows it to handle many more concurrent connections than a process driven process.
This is a great added value to have in place for you, and you should be already noticing the benefit of it.