If you have an HTML Internet site, most likely it uses a really small amount of system resources due to the fact that it is static, but this isn't so with dynamic database-driven sites that use PHP scripts and offer you far more capabilities. This type of Internet sites produce load on the hosting server each time anyone 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 Internet browser. A widely used discussion board, for example, stores all usernames and posts within a database, so some load is created each time a thread is opened or a user looks for a specific term. If many people access the forum at the same time, or if every single search involves checking thousands of database entries, this may create high load and affect the overall performance of the website. In this regard, CPU and MySQL load data can give you data about the site’s efficiency, as you can compare the numbers with your traffic data to make a decision if the Internet site must be optimized or migrated to another kind of web hosting platform that'll be able to bear the high system load in the event that the site is extremely popular.