Name and explain the four types of misses associated with cache memory What is meant by the term “power wall” in terms of processor performance improvements and the focus towards more parallelism? The current focus of exploiting higher levels of performance in hardware is on multicore, domain specific architectures and parallel processing. What is the primary impediment to achieving maximum utilization of the hardware resources being implemented today? Explain what “Speculative execution” means and how it applies to computer performance? Explain the difference between static and dynamic branch prediction??