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Before working on the difference between all three schedulers, let us recall the concept of process scheduler. Process scheduler is a part of the Operating system which schedules processes. If the process is in ready, waiting and running state, it schedules it correctly and is also responsible for the allocation of the CPU processor to a specific task within a time interval. Also, when the task or process is completed it doesn't allow the CPU to sit idle. It will allocate the other task depending on its current state. If the process was in ready state it will ... Read More
Hardware Synchronization provides solutions to the critical-section problem using atomic hardware instructions. These hardware-based techniques form the foundation for more sophisticated synchronization mechanisms and offer better performance than pure software solutions. Hardware synchronization relies on the premise of locking using atomic operations that cannot be interrupted. These instructions allow us to test and modify memory locations or swap values as one uninterruptible unit, making them ideal for implementing mutual exclusion in multiprocessor environments. Why Hardware Support is Needed In uniprocessor systems, disabling interrupts can solve the critical-section problem by preventing preemption. However, this approach fails in multiprocessor ... Read More
Shutdown7 is a compact, feature-rich application that enhances Windows' built-in shutdown functionality with advanced scheduling and automation capabilities. This free utility allows users to set up automatic system shutdowns based on specific conditions such as application closure, file deletion, music playback completion, or after a defined period of user inactivity. The primary advantage of Shutdown7 is its ability to automate system power management. Users can specify exact dates and times for shutdown operations, making it ideal for scenarios where processes run overnight. Instead of leaving a computer running indefinitely, Shutdown7 ensures the system powers down automatically once tasks complete, ... Read More
Docker Image tags are simple labels or aliases given to a Docker image before or after building to describe that particular image. Tags can represent the version of the project, features of the image, technologies used, or any descriptive identifier. They play a key role in the overall software development lifecycle by helping track different parts of your project and enabling effective version management. While pulling an image, you can specify the tag of the image you want. If not specified, Docker will pull the latest tagged image automatically. Let's explore the common ways tagging is used when working ... Read More
Linux is a popular open-source operating system that has gained significant traction in recent years. It is known for its flexibility and security, making it a preferred choice for developers and enthusiasts alike. One of the essential features of Linux is its package manager, which is a tool that helps users manage software installation, removal, and updates. In this article, we will discuss the 5 best Linux package managers for Linux newbies. What is a Linux Package Manager? Before we dive into the list of package managers, let's understand what a package manager is. In simple terms, a ... Read More
Centralized log management tools have become a crucial component in managing logs from various sources in modern software applications. These tools help to store, analyze and search large amounts of log data, making it easier for developers and administrators to identify and troubleshoot issues in their systems. In this article, we'll examine 5 most notable open source centralized log management tools and explore their features, benefits and limitations. Elasticsearch Elasticsearch is a highly popular open source search engine that's commonly used as a centralized log management tool. It's designed to store and index large amounts of data in ... Read More
Anaconda is a widely used distribution of Python and R programming languages for data science, machine learning, and scientific computing. Installing Anaconda on CentOS 8 provides access to over 1, 500 packages and a comprehensive environment management system. This article will guide you through the complete process of installing and configuring Anaconda on CentOS 8, including environment management and package installation. Prerequisites Before installing Anaconda, ensure your CentOS 8 system is updated and has sufficient disk space (minimum 3GB recommended). sudo dnf update -y Step 1: Download Anaconda Installation Script Download the ... Read More
The process scheduler is responsible for assigning processes to the CPU based on specific scheduling algorithms. It manages the order in which processes are executed to optimize system performance and resource utilization. CPU scheduling involves selecting which process should run next when the CPU becomes available. The scheduler uses various algorithms and policies to make these decisions, balancing factors like efficiency, fairness, and response time. Types of CPU Scheduling Algorithms CPU scheduling algorithms can be categorized into different types based on their approach − Preemptive vs Non-Preemptive Preemptive Scheduling Non-Preemptive Scheduling ... Read More
Data centers consist of a large number of enterprise servers. Not all servers are active at the same time. In case traffic is directed mostly to a particular set of servers, those servers get busy. The other servers are less loaded, or they even turn totally inactive, thereby wasting power, maintenance costs, and other allied resources. With the changing times, businesses started looking for solutions to reduce overhead costs, enhance scalability, and standardize application deployment processes. They started considering the following two approaches to reduce costs: Virtualization − Virtualization is the technology that can simulate your physical ... Read More
Symbolic links (also called soft links) are pointers to files or directories located elsewhere in the filesystem. They provide convenient shortcuts for accessing files without duplicating data. This tutorial demonstrates how to properly remove symbolic links in Linux without affecting the original files. Understanding the Setup Let's start with a directory containing files and their symbolic links. Here's our example structure − $ ls -l total 0 drwxr-xr-x 2 kent kent 40 Apr 26 23:48 aDir/ -rw-r--r-- 1 kent kent 0 Apr 26 23:46 aFile.txt lrwxrwxrwx 1 kent kent 4 Apr 26 23:48 dirLink ... Read More