Explain variable-partition contiguous storage allocation, Computer Engineering

Assignment Help:

Explain the concept of variable-partition contiguous storage allocation.

Suppose that we have 1024K main memory available in that 128K is occupied through operating system program. Now there are 4 jobs waiting for memory allocation into a job queue Applying FCFS scheduling policy, so Process 1, Process 2 and Process 3 can be instantly allocated in memory. Process 4 can't be accommodated since there is there is not sufficient space.

  • A hole of 64K is left after loading 3 processes: not sufficient room for other process.
  • Finally each process is blocked. The operating system swaps out process 2 to bring in process 4.

1051_variable-partition contiguous storage allocation.png

  • The other hole of 96K is created.
  • Finally each process is blocked. The operating system swaps out process 1 to bring into again process 2 and other hole of 96K is created.

225_variable-partition contiguous storage allocation1.png


Related Discussions:- Explain variable-partition contiguous storage allocation

Explain the term - rational rose and visio 2000 enterprise, Explain the ter...

Explain the term - Rational Rose and Visio 2000 Enterprise Rational Rose: IBM Rational RequisitePro is a powerful and easy-to-use tool for use case management and requirement

How to join to mwseries from power builder 8.0, Using CICS Transaction Gate...

Using CICS Transaction Gateway we can join MQ Series with Power Builder 8.0

By which digits are represented, In a DTMF phone, digits are represented by...

In a DTMF phone, digits are represented by: (A)  Orthogonal frequencies. (B)  Orthogonal Phases. (C)  Orthogonal codes. (D)  Orthogonal pulses. Ans: Di

Explain the storage class auto, Explain The Storage Class auto The Stor...

Explain The Storage Class auto The Storage Class auto : Variables declared within function bodies are automatic by default. Thus, automatic is the most common of the four stora

Illustration of parallel programming environments, Q. Illustration of paral...

Q. Illustration of parallel programming environments? Let's discuss illustrations of parallel programming environments of Intel paragaon XP/S and Cray Y-MP software. The Cra

explain compiler, Compiler is used to change the high-level language progr...

Compiler is used to change the high-level language program into machine code at a time. It doesn't needs special instruction to store in a memory, it keeps automatically. The imple

Alignment with your indents, Use Microsoft SQLServer to make the following ...

Use Microsoft SQLServer to make the following queries.  You should also download the Pirate Sports DM-DD that gives the fields for every table.  Be sure to use proper alignment wit

What are the features of cisc processors, What are the Features of CISC Pro...

What are the Features of CISC Processors The standard features of CISC processors are listed below:  CISC chips have a large amount of dissimilar and complex instructions.

What is ''LRU'' page replacement policy, 'LRU' page replacement policy is ?...

'LRU' page replacement policy is ? Ans. Least Recently Used.

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