I'm new to db management and db tweaking. I'm using mysqltuner to get recommendations for how to improve db performance.
Mysql issues a warning message along with its recommendations: "MySQL started within last 24 hours - recommendations may be inaccurate." It is true that I started MySQL within the last 24 hours, but why does this matter? What does the database do over a 24 hour period that will change the results of mysqltuner?