3 Speaking as a buffer, it's my goal to remain in the cache. Being a popular buffer will increase my likelihood of remaining in the cache. And being a popular dirty buffer, well, that carries a certain mystique.

4 My sources related to the touch-count algorithm were an Internet posting by Steve Adams of Ixora, an internal Oracle source, and hours and hours of testing and experimenting. That was enough to allow me to perform my research and publish a paper entitled All About Oracle's Touch-Count Algorithm in 2001. From what I can tell, James Morle made the first public hint of the touch-count algorithm in his 2000 book, Scaling Oracle8i (Addison-Wesley).

5 Always remember that when we change an instance parameter, it is truly only a suggestion. If our change places Oracle in an impossible situation or Oracle deems the change inappropriate in any way, Oracle may simply ignore our suggestion or choose a value that is close to our suggestion and acceptable to Oracle.