Скачать или смотреть 2. CPU SCHEDULING ALGORITHM'S

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Welcome to an in-depth exploration of CPU scheduling algorithms and process parameters in operating systems. This video is tailored to help you understand the intricacies of CPU scheduling, including the different types of algorithms, their real-world applications, and the critical parameters that govern process management.

Timestamps for Detailed Navigation:

01:07 - Brief Overview of Why Types of Algorithms Matter, with a Real-World Example
Moving forward, we discuss why different types of CPU scheduling algorithms are necessary, highlighting their impact on system performance and user experience. This overview includes a real-world example to illustrate how these algorithms are applied in practical scenarios, making the concepts easier to grasp and relate to.

17:03 - Parameters of a Process
Next, we examine the critical parameters of a process, such as arrival time, burst time, priority, deadline, and response time. Understanding these parameters is vital for anyone looking to master process management, as they directly influence how processes are scheduled and executed within the operating system. We break down each parameter's role in process scheduling and management, helping you understand how they interact to determine the efficiency and fairness of the scheduling algorithms used.

26:19 - Brief Overview of Preemptive and Non-Preemptive Scheduling Algorithms
Finally, we explore the concepts of preemptive and non-preemptive scheduling algorithms, comparing their strengths and weaknesses. This section explains when and why each type of scheduling is used, providing a balanced view of their practical applications in real-world operating systems.

33:50 - Briefly Exploring Types of Algorithms in Each Category
Finally, we break down the specific algorithms within each category of scheduling. For non-preemptive and preemptive scheduling, we discuss algorithms like First-Come, First-Serve (FCFS), Shortest Job First (SJF), Priority Scheduling, and Round Robin (RR). For multilevel queue and multilevel feedback queue scheduling, we explain how these algorithms manage processes across different priority levels and queues.

43:00 - When and Where to Apply CPU Scheduling
We begin by discussing the scenarios in which CPU scheduling becomes necessary. Learn about environments where multiple processes are competing for CPU time, such as in multitasking operating systems.

48:22 - Differences Between Non-Preemptive and Preemptive Scheduling
Learn how non-preemptive scheduling allows a process to run to completion once it has started, while preemptive scheduling can interrupt a process to allow another, higher-priority process to execute.

56:10 - We kick off with a deep dive into an illustrative example of the FCFS scheduling algorithm. We discuss its simplicity and fairness, along with potential drawbacks like the "convoy effect," where shorter processes may get delayed by longer ones.

01:25:32 - We begin by showcasing a series of examples illustrating the SJF scheduling algorithm in action. We cover both static methods, where burst times are predetermined, and dynamic methods, where they are estimated based on historical data or other criteria.

01:49:40 - We start with a detailed example to illustrate how the Longest Job First (LJF) scheduling algorithm operates. we delve into the pros and cons of using the LJF scheduling algorithm.

02:02:34 - We begin with a comprehensive example demonstrating the Priority Non-Preemptive scheduling algorithm. we analyze the pros and cons of using Priority Non-Preemptive Scheduling.

02:14:25 - we walk through a detailed example of how the Highest Response Ratio Next (HRRN) algorithm works. we discuss the benefits and limitations of the HRRN scheduling algorithm.

02:27:45 - we delve into a detailed example of the Shortest Remaining Time First (SRTF) scheduling algorithm. we discuss the benefits and limitations of the SRTF scheduling algorithm.

03:10:49 - we begin with a comprehensive example of the Longest Remaining Time First (LRTF) scheduling algorithm. we discuss the benefits and limitations of the LRTF scheduling algorithm.

03:29:01 - we dive deep into an example of the Priority Preemptive Scheduling Algorithm. We begin by explaining how priorities are assigned to different processes and how the CPU decides which process to execute based on its priority level.

03:44:24 - we provide a deep explanation of the Round Robin Scheduling Algorithm using a comprehensive example. We start by discussing how processes are assigned a time quantum and proceed to explain how each process takes its turn for execution in a cyclic manner.

04:27:02 - Deep Dive into Multilevel Queue Scheduling, Multilevel Feedback Queue Scheduling and How It Works with Various Algorithms

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