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Found 2003 Articles for Operating System

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Paging is a memory management method. The operating system may create and deallocate memory in pages, which are smaller, fixed-size pieces. The operating system can use virtual memory thanks to paging, which allows a process to access more memory than is physically accessible. Page faults and page replacement overheads are nonetheless also introduced when paging is used. Thus, while designing and refining current operating systems, paging performance is a key consideration. This article will cover a number of performance-related topics related to paging, including benchmarking, page replacement techniques, the working set model, thrashing, page size selection, TLB (Translation Lookaside Buffer) ... Read More

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A two-level paging system, sometimes known as hierarchical paging, is a way to translate virtual addresses to physical addresses in a computer system with a lot of physical memory. The page table is split into two sections in a two-level paging scheme: a top-level page table and a bottom-level page table. Pointers to the bottom-level page tables are present in the top-level page table. A piece of the virtual address space is mapped to a component of the physical address space in each bottom-level page table. The processor initially utilizes the page number to index into the top-level page table ... Read More

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Mutual exclusion is a program object that relates to the condition that no two concurrent processes be in the same crucial region at the same time. It is offered to prevent the race condition from occurring. If a current process is accessing the crucial part, it prohibits another concurrent process from entering there. In a nutshell, only one process is authorized to perform the vital part at any one moment. What are performance metrics for mutual exclusion? Programming object mutual exclusion describes the need that no two concurrent processes take place in a crucial region at the same time. It ... Read More

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Scheduling algorithms are designed for serving the processes by providing the maximum utilization of the resources. The resources that are allocated to execute the given input, should not remain idle and repetitive projects has to be handled by the resources simultaneously without any break. Considering all these factors, a few simulation approaches have been developed to improve the repetitive activities by analyzing the nature of the process but none of the approaches delivered maximum resource utilization. Later, the sequence step algorithm has been initiated to minimize the processing and execution time of the process by determining the probability of process ... Read More

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Linux is widely used both as a Desktop Operating System and to create server platforms. Linux can be used to build standalone servers, and mail servers, create a web server, and set up a gateway for LAN. It is extensively used in the fields of telecommunications, embedded systems, satellites, medical equipment, military systems, computer graphics, and desktop computing. 75 percent of the world's top supercomputers run on the LINUX operating system. Setting Up a Linux Multifunction Server Creating a Linux Multifunction server First, we need to install the Debian distribution of Linux. Then configure the network manually. We need to ... Read More

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The people in the world are involved in data usage and lots of services that make the work easier. To compromise the need for high usage and data, server Operating systems are developed to provide services to many users concurrently. Server Operating System is a type of Operating system with advanced features that can be used only on servers. It is designed to use in-server computers to handle various users and requests at a time. When a person or company requires data it cannot be served using a human instead the solution is given by a machine. Server Operating System ... Read More

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In the Operating System, Segmentation is mainly useful to maintain the modular structure of a program. The purpose of using segmentation is to achieve the user's view of memory allocation similarly when paging does not bother where programs start and end and it simply divides the program into pages. The non-adjacent memory allocation technique can be divided into two types namely paging and segmentation. In segmentation, the program is not divided randomly or with a variable size but with a fixed page. Segmentation in OS The segmentation technology is used in operating systems and the process is divided into many ... Read More

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In an operating system, segmentation is termed a memory management technique where the memory is divided into segments that can be allocated to a process. These segments may not be in fixed length and not stored in a contagious manner. This approach has been developed after the paging process which takes multiple pages for a process to get loaded into main memory, whereas segmentation divided the code into segments as its relative code can be merged to form a single block. The segment table holds all the details relating to the segments and the processes. Generating a logical address which ... Read More

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Within the domain of computer frameworks and capacity gadgets, the execution of disk planning plays an essential part in optimizing information get to and recovery. Two basic components that altogether affect disk execution are seek time and transfer time. Seek time speaks to the length it takes for the disk arm to move to the specified track, whereas transfer time signifies the time required to examined or type in information once the required track is situated. This article points to investigate and explain the elemental contrasts between seek time and transfer time, shedding light on their person importance in disk ... Read More

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Disk scheduling algorithms play a pivotal part in optimizing the execution of disk frameworks by proficiently getting to information. Among the different calculations, Scan (moreover known as the elevator algorithm) and FCFS (First-Come-First-Serve) are two commonly utilized approaches with particular procedures. Check moves the disk arm over the platter in a specific design, adjusting demands because it clears in one course, which minimizes the look for time and improves productivity. On the other hand, FCFS follows a straightforward guideline of servicing the demands within the arrangement they arrive at, without any thought for the area of information on the disk. ... Read More