Assume a 32-bit virtual address space and a 4 KB page size 1. The execution time for a benchmark test is 150 ?s. After a hardware improvement, the execution time for that test is now 100 ?s. What is the overall speedup? 2. Suppose the prior improvement only helped 50% of the time but the CS guys and gals developed a new benchmark test that used the enhanced hardware improvement 90% of the time. a. What is the speedup of the enhancement? b. What is the new advertised speedup based on this benchmark?