Chapter 13, Problem 14E

Explanation of Solution

Managing buffer:

• The standard buffer manager assumes each page is of the same size and costs the same to read.
• Consider that instead of LRU, a buffer manager uses the reference to object. That is how the object has been accessed in the last second.
• Consider the situation that the user want to store the objects of varying size in the buffer, and varying read costs like, web pages whose read cost depends on the site from they are fetched...