2. [24 marks] 1) Compulsory misses occur the first time a program touches a cache line. 2) Conflict misses occur when more than 'm' lines map to the same set in an m-way set-associative cache. 3) Capacity misses occur when a program's working set exceeds the cache capacity. It is hard to do much about compulsory misses, but both conflict and capacity misses are affected by the geometry parameters of a cache: its capacity, its associativity (wayness), and its cache-line size. a) [8 marks] If we increase the capacity 'S' of the cache, but keep the other two parameters constant, will i) conflict misses, and ii) capacity misses, increase or decrease? Explain. Also, is there a downside to larger caches? Explain. b) [8 marks] If we increase the associativity (wayness) 'm' of the cache, but keep the other two parameters constant, will i) conflict misses, and ii) capacity misses, increase or decrease? Explain. Also, is there a downside to increased associativity? Explain. c) [8 marks] If we increase the cache-line size 'L' of the cache, but keep the other two parameters constant, will the miss rate increase or decrease i) for programs with a high spatial locality, and ii) for programs with low spatial locality? Explain.