Interested to Buy Any Domain ? << Click Here >> for more details...
Answer Posted / guest
In a cached system, the base addresses of the last few
referenced pages is maintained in registers called the TLB
that aids in faster lookup.
TLB contains those page-table entries that have been most
recently used.
Normally, each virtual memory reference causes 2 physical
memory accesses-- one to fetch appropriate page-table
entry, and one to fetch the desired data. Using TLB in-
between, this is reduced to just one physical memory access
in cases of TLB-hit.
| Is This Answer Correct ? | 15 Yes | 0 No |
Post New Answer View All Answers
What is the meaning of busy spin in multi-threading?
What are the basic functions of file management in os?
Measurements of a certain system have shown that the
average process runs for a time T before blocking
on I/O. A process switch requires a time S, which is
effectively wasted (overhead). The CPU’s efficiency is
the fraction of its time its spends executing user
programs, i.e., executing user processes. For round robin
scheduling with quantum Q, give a formula for the CPU
efficiency for each of the following:
(a) Q = ∞
(b) Q > S + T
(c) S What are necessary conditions for dead lock? Explain Memory Partitioning, Paging, Segmentation? What is a sector? What are advantages of operating system? What is live boot? What are the different states of a process? Explain turnaround time and response time? Explain about processor and the functions executed by them? How do I cd into a directory? Explain latency, transfer and seek time with respect to disk i/o.? Explain an idle thread? Can I have two operating systems on one computer?
