4. (Exercise 2.3) Recall the example involving cache reads of a two-dimensional array (see below). How do a larger matrix and a larger cache affect the performance of the two pairs of nested loops? What happens if MAX = 8 and the cache can store four lines? How many misses occur in the reads of A in the first pair of nested loops? How many misses occur in the second pair? double A [MAX] [MAX], X[MAX], Y [MAX]; /* Initialize A and x, assign y = 0 */ /* First pair of loops */ for (i = 0; i