Database-Management-System
August 12, 2024NVS PGT CS 2017 Part-B
August 13, 2024Operating-Systems
| Question 52 |
A paging scheme uses a Translation Look-aside Buffer (TLB). A TLB-access takes 10 ns and a main memory access takes 50 ns. What is the effective access time(in ns) if the TLB hit ratio is 90% and there is no page-fault?
| 54 | |
| 60 | |
| 65 | |
| 75 |
Question 52 Explanation:
EMAT = TLB access time + Miss ratio × Main memory access time + Main memory access time
= 10 + 0.1 × 50 + 50
= 10 + 5 + 50
= 65
= 10 + 0.1 × 50 + 50
= 10 + 5 + 50
= 65
Correct Answer: C
Question 52 Explanation:
EMAT = TLB access time + Miss ratio × Main memory access time + Main memory access time
= 10 + 0.1 × 50 + 50
= 10 + 5 + 50
= 65
= 10 + 0.1 × 50 + 50
= 10 + 5 + 50
= 65