Comparison of disk scheduling algorithms, Operating System

Assignment Help:

COMPARISON OF DISK SCHEDULING ALGORITHMS

Name      Description                  Remarks     (Selection according to requestor)

 

RSS        Random scheduling     for analysis and simulation

FIFO      First in first out            Fairest of them all

PRI         Priority by process     Control outside of disk queue   management

LIFO      Last in first out            Maximize locality and resource utilization

 

            (Selection according to requested item)

 

SSTF                 Shortest seek time first             High utilization, small queues

SCAN                Back and forth over disk            Better service distribution

C-SCAN            One way with fast return           Lower service variability

N-step-SCAN    Multiple queues                          Scan N records at a time        

                                                                           Service guarantee

FSCAN              SCAN using 2 queues                 load sensitive

 

 


Related Discussions:- Comparison of disk scheduling algorithms

Explain the os/2 operating system, Explain the OS/2 Operating System Li...

Explain the OS/2 Operating System Like NetWare, OS/2 manage resources at three levels, as shown in Figure 4.5 Resources may be maintained at the session, process, and thread le

Define coding in an independent service architecture, Define Coding in an i...

Define Coding in an independent service architecture Coding in an independent service architecture alleviates many of the traditional dependencies of monolithic applications.

Networking protocols, Modern networks are not implemented as a single piece...

Modern networks are not implemented as a single piece of software; that would render the task of dealing with multiple technologies and manufacturers virtually impossible. The solu

Tcp and ip stack, What does the last four digits '0010' of the above dump r...

What does the last four digits '0010' of the above dump represent? What action will the Destination node takes when it receives this packet? The last four digits '0010' denotes

How virtual memory is implemented, How Virtual memory is implemented Vi...

How Virtual memory is implemented Virtual memory can be implemented along with Segmentation and Paging

Difference among pre-emptive and non pre-emptive scheduling, Q. Define the ...

Q. Define the difference among pre-emptive and non pre-emptive scheduling. Answer: Pre-emptive scheduling permits a process to be interrupted in the midst of its execution ta

Making the transition to client - server programming, Making the Transition...

Making the Transition to Client - Server Programming Making the transition to client - server programming is a significant effort. Client - server applications must be designed

How can the index blocks be implemented, How can the index blocks be implem...

How can the index blocks be implemented in the indexed allocation scheme? The index block can be implemented as follows a. Multilevel scheme b. Linked scheme c. Combin

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd