operating system principles and practice ebook

... Recursive Books recursivebooks.com Operating Systems: Principles and Practice (Second Edition) Volume IV: Persistent Storage by Thomas Anderson and Michael Dahlin Copyright ©Thomas Anderson and Michael Dahlin, 2011-2015 ... abstraction layer work in a modern operating system; the difference between a monolithic and a microkernel operating system; and how policy and mechanism are separated in modern operating systems Concurrency and ... A focus on up-to-date industry technologies and practice The eBook edition is split into four volumes that together contain exactly the same material as the (2nd) print edition of Operating Systems: Principles and Practice, reformatted for various screen sizes

Ngày tải lên: 09/05/2016, 09:54

... 1Computer System Overview Chapter 1 Trang 2Operating System• Exploits the hardware resources of one or more processors • Provides a set of services to system users • Manages secondary memory and I/O ... references by optimizing register use • Control and status registers – Used by processor to control operating of the processor – Used by privileged operating-system routines to control the execution ... programs and system programs • Types of registers – Data – Address • Index • Segment pointer • Stack pointer Trang 8• When memory is divided into segments, memory is referenced by a segment and an

Ngày tải lên: 09/01/2018, 12:01

... Computer System Trang 5• Access to I/O devices• Controlled access to files • System access Trang 6Services Provided by the Operating System • Error detection and response – Internal and external ... to the operating system for the user Trang 49and I/O facilities– All processors can perform the same functions Trang 5050Multiprogramming and Multiprocessing Trang 51Modern Operating Systems ... Distributed operating systems – Provides the illusion of a single main memory space and single secondary memory space Trang 52– Enables programmers to customize an operating system without disrupting system

Ngày tải lên: 09/01/2018, 12:01

... 28Processes and Resources Trang 29Operating System Control Structures • Information about the current status of each process and resource • Tables are constructed for each entity the operating system ... Trang 5353Trang 5454Trang 55Execution of the Operating System • Process-Based Operating System – Implement operating system as a collection of system processes – Useful in processor or multi-computer ... Processes– Operating system software within context of a user process – Process executes in privileged mode when executing operating system code Trang 5353Trang 5454Trang 55Execution of the Operating

Ngày tải lên: 09/01/2018, 12:01

... by the operating system Process • Dispatching is referred to as a thread or lightweight process • Resource of ownership is referred to as a process or task Multithreading • Operating system supports ... Solaris, Linux, Mach, and OS/2 support multiple threads Process • Have a virtual address space which holds the process image • Protected access to processors, other processes, files, and I/O resources ... within the same process share memory and files, they can communicate with each other without invoking the kernel Uses of Threads in a SingleUser Multiprocessing System • • • • Foreground to background

Ngày tải lên: 09/01/2018, 12:01

... processor time Trang 9Operating System Concerns• Keep track of various processes • Allocate and deallocate resources – Processor time– Memory – Files– I/O devices • Protect data and resources • Output ... Trang 1Concurrency: Mutual Exclusion and Synchronization Chapter 5 Trang 3ConcurrencyTrang 4Difficulties of Concurrency• Sharing of global resources • Operating system managing the allocation of ... 15Mutual Exclusion:Hardware Support • Interrupt Disabling – A process runs until it invokes an operating system service or until it is interrupted – Disabling interrupts guarantees mutual Trang

Ngày tải lên: 09/01/2018, 12:01

... by the operating system • Hold and Wait – Require a process request all of its required resources at one time Trang 19Deadlock Prevention• No Preemption – Process must release resource and request ... (produced) and destroyed (consumed) • Interrupts, signals, messages, and information Trang 10Send(P1, M2); Trang 11Resource Allocation Graphs• Directed graph that depicts a state of the system ... a time and not depleted by that use • Processes obtain resources that they later release for reuse by other processes • Processors, I/O channels, main and secondary memory, devices, and data

Ngày tải lên: 09/01/2018, 12:01

... protection requirement must be satisfied by the processor (hardware) rather than the operating system (software) • Operating system cannot anticipate all of the memory references a program will make Memory ... generated to the operating system 27 Paging • Partition memory into small equal fixed-size chunks and divide each process into the same size chunks • The chunks of a process are called pages and chunks ... called frames • Operating system maintains a page table for each process – Contains the frame location for each page in the process – Memory address consist of a page number and offset within

Ngày tải lên: 09/01/2018, 12:01

... Memory • Hardware must support paging and segmentation • Operating system must be able to management the movement of pages and/or segments between secondary memory and main memory Paging • Each process ... memory • Operating system places the process in a blocking state Execution of a Program • Piece of process that contains the logical address is brought into main memory – Operating system issues ... execution window 62 UNIX and Solaris Memory Management • Paging System – Page table – Disk block descriptor – Page frame data table – Swap-use table 63 64 65 66 UNIX and Solaris Memory Management

Ngày tải lên: 09/01/2018, 12:01

... interrupts– Operating system calls– Signals Trang 9Short-Tem Scheduling Criteria • User-oriented – Response Time • Elapsed time between the submission of a request until there is output. • System-oriented ... itself for I/O • Preemptive – Currently running process may be interrupted and moved to the Ready state by the operating system – Allows for better service since any one process cannot monopolize ... System-oriented – Effective and efficient utilization of the processor Trang 10Short-Term Scheduling Criteria • Performance-related – Quantitative– Measurable such as response time and throughput Trang

Ngày tải lên: 09/01/2018, 12:01

... memory – Controlled by operating system Independent Parallelism • Separate application or job • No synchronization among processes • Example is time-sharing system Coarse and Very CoarseGrained ... Multiprocessor and Real-Time Scheduling Chapter 10 Classifications of Multiprocessor Systems • Loosely coupled or distributed multiprocessor, or cluster – Each processor has its own memory and I/O channels ... Failure of master brings down whole system • Master can become a performance bottleneck Assignment of Processes to Processors • Peer architecture – Operating system can execute on any processor

Ngày tải lên: 09/01/2018, 12:01

... taking place in system memory, not user memory – Operating system keeps track of assignment of system buffers to user processes Trang 27I/O BufferingTrang 28Double Buffer • Use two system buffers ... – Used for disks and tapes • Stream-oriented – Transfer information as a stream of bytes – Used for terminals, printers, communication ports, mouse and other pointing devices, and most other devices ... software – Disk used to store virtual memory pages needs special hardware and software to support it – Terminal used by system administrator may have a higher priority Trang 8Differences in I/O

Ngày tải lên: 09/01/2018, 12:01

... 6969Trang 7171Trang 72Linux Virtual File System• Uniform file system interface to user processes • Represents any conceivable file system’s general feature and behavior • Assumes files are objects ... data and Trang 24PileTrang 25File Organization • The Sequential File – Fixed format used for records – Records are the same length – All fields the same (order and length) – Field names and lengths ... Concerned with scheduling access to optimize performance • Part of the operating system Trang 17Logical I/O • Enables users and applications to access records • Provides general-purpose record

Ngày tải lên: 09/01/2018, 12:01

... 2Distributed Capabilities• Communications architectures computers • Network operating system system • Distributed operating system Trang 3The Need for a Protocol Architecture • Computer communications ... end system and the network • Different standards – Circuit switching – Packet switching (frame relay) – LANs (Ethernet) Trang 10Transport Layer• Ensures all data arrives at the destination and ... data streams, graphic and video • Provides more addresses • Includes 128-bits for addresses – IP uses 32-bit address Trang 16IPv6Trang 17TCP/IP Concepts Trang 18Protocols and HeadersTrang 19Items

Ngày tải lên: 09/01/2018, 12:02

... threatens privacy Trang 9Computer System Assets • Communication Lines and Networks – Passive Attacks – Learn or make use of information from the system but does not affect system resources – Traffic ... private • Share via access limitation – Operating system checks the permissibility of each access by a specific user to a specific object – Operating system acts as the guard Trang 18• Share ... can be a profile that specifies permissible operations and file accesses • Operating system enforces these rules • Database management system controls access to specific records or portions

Ngày tải lên: 09/01/2018, 12:02

... is Migrated?• Must destroy the process on the source system and create it on the target system • Process image and process control block and any links must be moved Trang 7Example of Process ... Global States• Operating system cannot know the current state of all process in the distributed system • A process can only know the current state of all processes on the local system • Remote ... want to enter critical section and when leaving critical section • Time-stamping – Orders events on a distributed system – System clock is not used Trang 38• Each system on the network maintains

Ngày tải lên: 09/01/2018, 12:02

... sixth edition of Principles and Practice of Surgery con-tinues to build on the success and popularity of previous editions and its companion volume Davidson’s Principles and Practice of Medicine ... Clinical and Public Health Bacteriology and Honorary Consultant, Heart of England Foundation Trust and HPA West Midlands Regional Microbiologist, The Medical School, University of Birmingham; UK and ... min); positive inotrope and systemic vasodilator Dopexamine ↑ ↓ β1-agonist; positive inotrope and systemic vasodilatorLevosimendan ↑ ↓ Calcium sensitizer; positive inotrope and systemic vasodilatorMilrinone

Ngày tải lên: 21/01/2020, 12:20

... Principles and Practice of Pediatric Anesthesia Principles and Practice of Pediatric Anesthesia Editors Snehalata H Dhayagude MBBS ... jaypee@jaypeebrothers.com Principles and Practice of Pediatric Anesthesia First Edition: Digital Version 2017 ISBN: 978-93-85891-70-0 To our families For their support and patience & To all our ... India MD Principles and Practice of Pediatric Anesthesia Charusmita Modi  MD PhD Hemangi S Karnik  MD Additional Professor Department of Transfusion Medicine Seth GS Medical College and KEM Hospital

Ngày tải lên: 23/01/2020, 05:55

... Trang 2Principles and Practice of Percutaneous TracheostomyTrang 4Principles and Practice of Percutaneous TracheostomySushil P Ambesh Professor and Senior ConsultantDepartment ... the skin and the superficialand deep fasciae The isthmus of the thyroid runsacross the trachea at the level of the 7th cervicalvertebra and 2nd, 3rd and 4th rings of the trachea(Figs 2.1 and 2.4) ... the management of critically ill patients In this context Principles and Practice of Percutaneous Tracheostomy written by professor Ambesh and co-authors provides a comprehensive overview of this

Ngày tải lên: 23/01/2020, 08:48

... protection, and the effectiveness of com- pliance and enforcement. This chapter examines the tensions between the principles of precaution and pollution prevention, on the one hand, and actual practices ... 1999. 8 Land-based marine pollution and the Arctic: polarities between principles and practice  * The concept of sustainable development calls for the application of manyprinciples ... pp. 1–23; and P. Sands, ‘International Law in the Field of Sustainable Development: Emerging Legal Principles , in W. Lang (ed.), Sustainable Development and International Law (London and Dordrecht:...

Ngày tải lên: 01/11/2013, 09:20