FIFO Page Replacement Algorithm C Program

C Program For FIFO Page Replacement Algorithm

Let us learn how to implement FIFO Page Replacement Algorithm in C programming language. This code for First In First Out Page Replacement makes use of arrays.

What is FIFO Page Replacement Algorithm?

When a page fault occurs, the OS has to remove a page from the memory so that it can fit in another page in the memory.

These page replacement algorithms are used in operating systems that support virtual memory management.

FIFO Page Replacement technique is one of the simplest one to implement amongst other page replacement algorithms. It is a conservative algorithm.

It is a low-overhead algorithm that maintains a queue to keep a track of all the pages in a memory.

When a page needs to be replaced, the page at the FRONT of the Queue will be replaced. The FIFO page replacement technique is not implemented in operating systems nowadays.

C Program To Implement FIFO Page Replacement Algorithm in OS


C Program To Implement FIFO Page Replacement Algorithm in OS

If you have any doubts or compilation errors in this C program to implement First In First Out Page Replacement Algorithm in operating system, let us know about it in the comment section below.

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Tushar Soni

I am Tushar Soni, Co - Founder of CodingAlpha. I am a computer science student from India and passionate about Web Development and Programming. Connect with me on Facebook | LinkedIn | Google Plus

7 thoughts on “FIFO Page Replacement Algorithm C Program

  • November 4, 2016 at 12:09 am

    Does this program work in Windows OS?

    • November 4, 2016 at 12:19 am

      I don’t find any reason that will hamper its execution in Windows operating system.

  • November 5, 2016 at 6:19 pm

    What is meant by a conservative algorithm?

    • November 5, 2016 at 6:20 pm

      If on any consecutive request sequence containing n or fewer distinct page references, the conservative algorithm will incur n or fewer page faults.

  • November 10, 2016 at 7:08 am

    Amazing code. Finally I got a working code for fifo replacement. Thanks.

  • November 17, 2016 at 7:29 am

    The FIFO Page Replacement Algorithm is used by the VMX/VAX Operating Systems, along with some modifications.

  • November 23, 2016 at 7:26 am

    Nice explanation of the FIFO Page replacement program in OS.


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