If you have an HTML Internet site, it probably uses a really small amount of system resources because it's static, but that isn't so with dynamic database-driven sites that use PHP scripts and provide you with way more functions. This kind of Internet sites produce load on the hosting server when someone browses them, because the hosting server requires time to execute the script, to access the database and then to provide the content requested by the visitor's web browser. A widely used discussion board, for example, stores all usernames and posts within a database, so some load is generated each time a thread is opened or a user searches for a specific name. If a lot of people access the forum concurrently, or if each and every search involves checking thousands of database entries, this may generate high load and affect the performance of the website. In this regard, CPU and MySQL load statistics can present you with info about the site’s functionality, as you can compare the numbers with your traffic statistics to determine if the website should be optimized or transferred to a new sort of website hosting platform which will be able to bear the high system load in the event that the website is really popular.