Aspect-Oriented Customization of the Scheduling Algorithms and the Resource Access Protocols of a Real-Time Operating System Family

2015 ◽  
Author(s):  
Yusuke Harada ◽  
Kazuki Abe ◽  
Myungryun Yoo ◽  
Takanori Yokoyama
Keyword(s):  
Operating System ◽  
Real Time ◽  
Scheduling Algorithms ◽  
Resource Access ◽  
Real Time Operating System ◽  
Access Protocols

scholarly journals Scheduling and Synchronization Algorithms in Operating System: A Survey

2021 ◽  
Vol 1 (2) ◽  
pp. 1-16
Author(s):  
Mohammed Y. Shakor ◽  
Keyword(s):  
Operating System ◽  
Real Time ◽  
Current Trend ◽  
Scheduling Algorithms ◽  
Computer Hardware ◽  
Real Time Operating System ◽  
Cpu Scheduling ◽  
System A ◽  
First Come First Serve ◽  
Remaining Time

An operating system is software that is designed to manage computer hardware and software resources. However, this management requires applying an ample number of techniques and algorithms which are called synchronization and scheduling. The scheduling algorithms are used to arrange the way that the CPU is assigned to the processes, while synchronization is utilized to indicate how to work with multi-processes at the same time. Therefore, they are related to each other. CPU scheduling is a vital phenomenon of an operating system. At present, numerous CPU scheduling algorithms exist as First Come First Serve) FCFS(, Shortest Job First (SJF), Shortest Remaining Time First (SRTF), Priority Scheduling, and Round Robin (RR). In this paper, a survey of the current synchronization and scheduling algorithms have been presented. An overview of each technique with the main algorithms have been described in detail with the advantages and the issues of each algorithm. Furthermore, this paper has dug deep into the real-time operating system scheduling issues, which is the current trend in operating system researches.

scholarly journals Priority based round robin (PBRR) CPU scheduling algorithm

2019 ◽  
Vol 9 (1) ◽  
pp. 190
Author(s):  
Sonia Zouaoui ◽  
Lotfi Boussaid ◽  
Abdellatif Mtibaa
Keyword(s):  
Operating System ◽  
Real Time ◽  
Waiting Time ◽  
Scheduling Algorithm ◽  
Scheduling Algorithms ◽  
Turnaround Time ◽  
Round Robin ◽  
New Approach ◽  
Real Time Operating System ◽  
Cpu Scheduling

<p>This paper introduce a new approach for scheduling algorithms which aim to improve real time operating system CPU performance. This new approach of CPU Scheduling algorithm is based on the combination of round-robin (RR) and Priority based (PB) scheduling algorithms. This solution maintains the advantage of simple round robin scheduling algorithm, which is reducing starvation and integrates the advantage of priority scheduling. The proposed algorithm implements the concept of time quantum and assigning as well priority index to the processes. Existing round robin CPU scheduling algorithm cannot be dedicated to real time operating system due to their large waiting time, large response time, large turnaround time and less throughput. This new algorithm improves all the drawbacks of round robin CPU scheduling algorithm. In addition, this paper presents analysis comparing proposed algorithm with existing round robin scheduling algorithm focusing on average waiting time and average turnaround time.</p>

An Improvement of Task Scheduling Algorithms and Hardware Scheduler of Real-time Operating System

2014 ◽  
Vol 7 (3) ◽  
pp. 337-344
Author(s):  
Yue-hua Li ◽  
Xue Liu ◽  
Yun-feng Ding ◽  
Hao-xin Cui ◽  
Yong-bin Du ◽  
...  
Keyword(s):  
Operating System ◽  
Real Time ◽  
Task Scheduling ◽  
Scheduling Algorithms ◽  
Real Time Operating System

scholarly journals CPU Scheduling Visualization

2014 ◽  
Vol 7 (1) ◽  
pp. 16-29
Author(s):  
Taqwa Flayyih Hasan
Keyword(s):  
Operating System ◽  
System Design ◽  
Real Time ◽  
Operating Systems ◽  
Scheduling Algorithms ◽  
Communications Networks ◽  
Real Time Operating System ◽  
Cpu Scheduling ◽  
Operating System Design ◽  
Visual Interfaces

Scheduling is a key concept in computer multitasking and multiprocessing operating system design, and in real-time operating system design. CPU scheduling is the basis of multiprogramming operating systems by switching the CPU among process; the operating system can make the computer more productive, scheduling algorithms are widely used in communications networks and in operating systems to allocate resources to competing tasks. In this paper, visual interfaces for CPU scheduling algorithms were designed by using Visual Basic6 language. They may use to learn users about this algorithms and how they work

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