If you have an HTML Internet site, most likely it uses a small amount of system resources due to the fact that it's static, but that isn't so with dynamic database-driven Internet sites that use PHP scripts and offer considerably more functions. This type of websites generate load on the web hosting server anytime somebody browses them, due to the fact that the server needs time to execute the script, to access the database and then to provide the info requested by the visitor's web browser. A well-known discussion board, for instance, stores all usernames and posts in a database, so some load is created every single time a thread is opened or a user searches for a particular phrase. If many people connect to the forum concurrently, or if each and every search involves checking tens of thousands of database entries, this may create high load and affect the overall performance of the site. In this regard, CPU and MySQL load statistics can provide you with data about the site’s overall performance, as you can compare the numbers with your traffic statistics to decide if the Internet site has to be optimized or transferred to a different kind of website hosting platform that will be able to bear the high system load in the event that the site is really popular.