If you have an HTML website, most likely it uses a very small amount of resources because it's static, but that isn't the situation with dynamic database-driven websites that use PHP scripts and offer far more features. This kind of websites generate load on the hosting server anytime anyone browses them, due to the fact that the hosting server requires time to execute the script, to access the database and then to supply the information requested by the visitor's web browser. A famous discussion board, for example, stores all usernames and posts inside a database, so some load is produced any time a thread is opened or an end user searches for a particular name. If many people connect to the forum at the same time, or if every search involves checking thousands of database entries, this may produce high load and affect the efficiency of the website. In this regard, CPU and MySQL load statistics can provide data about the site’s efficiency, as you can compare the numbers with your traffic statistics and see if the Internet site must be optimized or transferred to another type of website hosting platform that'll be able to bear the high system load in case the site is extremely popular.