This problem tests your ability to predict the cache behavior of C code. You are given t...

This problem tests your ability to predict the cache behavior of C code. You are given the following code to analyze:

Assume we execute this under the following conditions:

• . sizeof(int) = 4.

• . Array x begins at memory address 0x0 and is stored in row-major order.

• . In each case below, the cache is initially empty.

• . The only memory accesses are to the entries of the array x. All other variables are stored in registers.

Given these assumptions, estimate the miss rates for the following cases:

A. Case 1: Assume the cache is 512 bytes, direct-mapped, with 16-byte cache blocks. What is the miss rate?

B. Case 2: What is the miss rate if we double the cache size to 1024 bytes?

C. Case 3: Now assume the cache is 512 bytes, two-way set associative using an LRU replacement policy, with 16-byte cache blocks.What is the cache miss rate?

D. For Case 3, will a larger cache size help to reduce the miss rate? Why or why not?

E. For Case 3, will a larger block size help to reduce the miss rate? Why or why not?