How can deadlocks be represented?, Operating System

Assignment Help:

How can deadlocks be represented?

Deadlocks are able to be described in terms of a directed graph called as a system resource-allocation graph. This graph contains of the following:

  • a set of vertices V
  • a set of edges E
  • The set of vertices V is partitioned in to dissimilar types of nodes = {p1, p2...} the set of active process in the system, and R= {r1, r2...} the set of resource in the system.

Pi      Rj indicates that process pi has requested an instance of resource type Rj and is waiting currently for the resource. This is called as the request edge.

 Rj      Pi indicates that an instance of resource Rj has been allocated to process Pi. This is called as the assignment edge.

532_How can deadlocks be represented.png


Related Discussions:- How can deadlocks be represented?

Explain the performance of demand paging, Performance of demand paging ...

Performance of demand paging Demand paging can have an important effect on the performance of a computer system. As long as there are no page faults, the effective access time

Dynamically linked segmentation system, Sharing segments between processes ...

Sharing segments between processes without requiring the same segment number is possible in a dynamically linked segmentation system. a. Define a system that permits sta

What is the purpose of system calls, What is the purpose of system calls? ...

What is the purpose of system calls? System calls permit user-level processes to request services of the operating system.

What is an idle thread, idle thread The special thread a dispatcher wi...

idle thread The special thread a dispatcher will run when no ready thread is found. The primary purpose of the idle process and its threads is to remove what would otherwise b

Compute minimum transfer size for acceptable utilization, Q. It is occasio...

Q. It is occasionally said that tape is a sequential-access medium whereas magnetic disk is a random-access medium. In fact the correctness of a storage device for random access d

Write a short note on file organization and access, Write a short note on f...

Write a short note on file organization and access. There are three methods to access files 1Record Access 2Sequential Access 3Random Access The record access

Why is rotational optimization no longer consequently useful, UNIX systems ...

UNIX systems utilized to use disk-layout optimizations based on the rotation position of disk data however modern implementations including Linux simply optimize for sequential dat

What are the different directory structures, What are the different directo...

What are the different directory structures? Explain each type. There are five dissimilar directory structures: 1.      Single level directory 2.      Two level directory

Multiprogramming., In a multiprogramming and time sharing environment sever...

In a multiprogramming and time sharing environment several users share the system simultaneously .what are two such problems?

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