If you have an HTML site, in all probability it uses a really small amount of system resources as it is static, but this is not the situation with dynamic database-driven sites that use PHP scripts and provide much more functions. This sort of Internet sites produce load on the website hosting server every time someone browses them, as the web server needs time to execute the script, to access the database and then to supply the data requested by the visitor's Internet browser. A famous discussion board, for example, stores all usernames and posts inside a database, so some load is generated every time a thread is opened or an end user looks for a certain name. If many people connect to the forum all at once, or if each and every search involves checking hundreds of thousands of database entries, this could create high load and affect the performance of the site. In this regard, CPU and MySQL load statistics can provide you with data about the site’s efficiency, as you can compare the numbers with your traffic stats to make a decision if the Internet site should be optimized or migrated to another kind of website hosting platform which will be able to bear the high system load in case the website is popular.