Given that main memory is composed of only three page frames for public use and that a seven-page program (with pages a, b, c, d, e, f, g) that requests pages in the following order: a, b, c, b, d, a, e, f, b, e, d, f a. Using the FIFO page removal algorithm, indicate the movement of the pages into and out of the available page frames (called a page trace analysis) indicating each page fault with an asterisk (*). Then compute the failure ratio and success ratio. b. Using FIFO again, increase the size of memory so it contains four page frames for public use. Using the same page requests as above, do another page trace analysis and compute the failure and success ratios.

Given that main memory is composed of only three page frames for public use and that a seven-page program (with pages a, b, c, d, e, f, g) that requests pages in the following order: a, b, c, b, d, a, e, f, b, e, d, f a. Using the FIFO page removal algorithm, indicate the movement of the pages into and out of the available page frames (called a page trace analysis) indicating each page fault with an asterisk (*). Then compute the failure ratio and success ratio. b. Using FIFO again, increase the size of memory so it contains four page frames for public use. Using the same page requests as above, do another page trace analysis and compute the failure and success ratios.

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Concept explainers

Hash Table

A hash table also called a hash map, is a data structure that maps key-value pairs. The hash table can be used in complex systems to provide fast access and compact storage. A hash table is a structure that stores data in an abstract data type kind of associative array. It keeps data in an array format, with a distinct index value for every data value. If the index of the required data is known, then the data can be accessed very easily.

Question

3) Given that main memory is composed of only three page frames for public use and that a
seven-page program (with pages a, b, c, d, e, f, g) that requests pages in the following order:
a, b, c, b, d, a, e, f, b, e, d, f
a. Using the FIFO page removal algorithm, indicate the movement of the pages into and
out of the available page frames (called a page trace analysis) indicating each page
fault with an asterisk (*). Then compute the failure ratio and success ratio.
b. Using FIFO again, increase the size of memory so it contains four page frames for
public use. Using the same page requests as above, do another page trace analysis
and compute the failure and success ratios.

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