A computer uses virtual memory, using a new solid state drive (SSD) as space for paging. Without a page fault, access time is 100ns. In the case presented there, the hard disk drive (HDD) required 25ms to read in a page, and a rate of 1 page fault (pf) per 1000 references introduced a 250slowdown.

1. If the SSD offers a time of only 80s, what is the slowdown in performance caused by 1 page fault per 1000 references? (you are not concerned with dirty vs. clean pages: assume pages are always clean).
2. What is the maximum rate of page faults you can accept if you want no more than a 10% slowdown in execution using virtual memory?