Chapter 8: Device Chapter 8: Device Management
... Swap-Space Management Swap-space — Virtual memory uses disk space as an extension of main ...
... Swap-Space Management Swap-space — Virtual memory uses disk space as an extension of main ...
ASPLOS 2014 [PDF]
... memory-mapped interface. The syscall-based OS path is only used for occasional maintenance such as the initialization setup. Commonly, much of the involved software (libraries, drivers) and hardware is unpublished (black boxes). from ignoring the new interface and accessing the device directly. Simp ...
... memory-mapped interface. The syscall-based OS path is only used for occasional maintenance such as the initialization setup. Commonly, much of the involved software (libraries, drivers) and hardware is unpublished (black boxes). from ignoring the new interface and accessing the device directly. Simp ...
Chapter 9: File-System Interface
... Relocatable load file Can simulate last two with first method by inserting appropriate control characters Who decides: Operating system Program / programmer ...
... Relocatable load file Can simulate last two with first method by inserting appropriate control characters Who decides: Operating system Program / programmer ...
ppt
... Relocatable load file Can simulate last two with first method by inserting appropriate control characters Who decides: Operating system ...
... Relocatable load file Can simulate last two with first method by inserting appropriate control characters Who decides: Operating system ...
Advanced Operating System
... rite system and input/output devices. It keeps track of the status of each resource and decides who will have a control over computer resources, for how long and when. The positioning of operating system in overall computer system is shown in figure 1. ...
... rite system and input/output devices. It keeps track of the status of each resource and decides who will have a control over computer resources, for how long and when. The positioning of operating system in overall computer system is shown in figure 1. ...
Chapter 1: Introduction
... Usually slightly faster to service a request with an existing thread than create a new thread Allows the number of threads in the application(s) to be bound to the size of the pool ...
... Usually slightly faster to service a request with an existing thread than create a new thread Allows the number of threads in the application(s) to be bound to the size of the pool ...
ppt
... On multiprocessor systems, with several CPUs, it would make sense for a process to have several CPU contexts (threads of control) Multiple threads of control could run in the same address space on a single CPU system too! o ...
... On multiprocessor systems, with several CPUs, it would make sense for a process to have several CPU contexts (threads of control) Multiple threads of control could run in the same address space on a single CPU system too! o ...
Operating System Concepts
... processors. Scheduler activations attempt to address these limitations to userlevel threads. A scheduler activation is a kernel thread that can notify a userlevel threading library of events (e.g., a thread has blocked or a processor is available). This type of kernel thread is called a "scheduler a ...
... processors. Scheduler activations attempt to address these limitations to userlevel threads. A scheduler activation is a kernel thread that can notify a userlevel threading library of events (e.g., a thread has blocked or a processor is available). This type of kernel thread is called a "scheduler a ...
Book 2.indb
... Later machines came with libraries of support code, which would be linked to the user’s program to assist in operations such as input and output. This was the genesis of the modern-day operating system. However, machines still ran a single job at a time; at Cambridge University in England the job qu ...
... Later machines came with libraries of support code, which would be linked to the user’s program to assist in operations such as input and output. This was the genesis of the modern-day operating system. However, machines still ran a single job at a time; at Cambridge University in England the job qu ...
A Virtual Machine Introspection Based Architecture for Intrusion
... A virtual machine monitor (VMM) is a thin layer of software that runs directly on the hardware of a machine. The VMM exports a virtual machine abstraction (VM) that resembles the underlying hardware. This abstraction models the hardware closely enough that software which would run on the underlying ...
... A virtual machine monitor (VMM) is a thin layer of software that runs directly on the hardware of a machine. The VMM exports a virtual machine abstraction (VM) that resembles the underlying hardware. This abstraction models the hardware closely enough that software which would run on the underlying ...
Operating System
... 1. Single-user, dedicated. Previously thought as individuals have sole use of computer, do not need advanced CPU utilization, protection features (see Fig. 1.3). 2. Not still true. May run several different types of OS (Windows, Mac OS X, UNIX, and Linux) which offer multitasking and virtual memory ...
... 1. Single-user, dedicated. Previously thought as individuals have sole use of computer, do not need advanced CPU utilization, protection features (see Fig. 1.3). 2. Not still true. May run several different types of OS (Windows, Mac OS X, UNIX, and Linux) which offer multitasking and virtual memory ...
Linked
... Mainframe computers (colloquially referred to as "big iron") are computers used primarily by corporate and governmental organizations for critical applications, Later, the term was used to distinguish high-end commercial machines from less powerful units. Batch systems: The next job will not be star ...
... Mainframe computers (colloquially referred to as "big iron") are computers used primarily by corporate and governmental organizations for critical applications, Later, the term was used to distinguish high-end commercial machines from less powerful units. Batch systems: The next job will not be star ...
Threading
... illusion that the threads are running in parallel. Like a traditional process i.e., process with one thread, a thread can be in any of several states (Running, Blocked, Ready or Terminated).Processes are used to group resources together and threads are the entities scheduled for execution on the CPU ...
... illusion that the threads are running in parallel. Like a traditional process i.e., process with one thread, a thread can be in any of several states (Running, Blocked, Ready or Terminated).Processes are used to group resources together and threads are the entities scheduled for execution on the CPU ...
Resource Management in a Multicore Operating System
... operations that must scale. Thus, it is important that the services presented by the operating system are themselves scalable in order not to prevent scalability of the rest of the software stack. ...
... operations that must scale. Thus, it is important that the services presented by the operating system are themselves scalable in order not to prevent scalability of the rest of the software stack. ...
Before You Begin: Assign Information Classification
... Most operating systems have an HCL. HCLs can be found on the manufacturer's website. HCL includes list of hardware that is known to work with the operating system. ...
... Most operating systems have an HCL. HCLs can be found on the manufacturer's website. HCL includes list of hardware that is known to work with the operating system. ...
Week 02 - Android
... player, bluetooth functionality, internet browsing functions, and color screen started emerging. By late 2000s, a new breed of mobile phones known as “Smartphones” became popular (earlier version known as PDA has been around since mid 2000s but are still unpopular and too expensive). It is basically ...
... player, bluetooth functionality, internet browsing functions, and color screen started emerging. By late 2000s, a new breed of mobile phones known as “Smartphones” became popular (earlier version known as PDA has been around since mid 2000s but are still unpopular and too expensive). It is basically ...
Module 4: Processes
... application may allow a program to continue running even if part of it is blocked or is performing a lengthy operation, thereby increasing responsiveness to the user. For example, a multithreaded Web browser could ...
... application may allow a program to continue running even if part of it is blocked or is performing a lengthy operation, thereby increasing responsiveness to the user. For example, a multithreaded Web browser could ...
Chap05
... processes that will enter the critical section next cannot be postponed indefinitely 3. Bounded Waiting - A bound must exist on the number of times that other processes are allowed to enter their critical sections after a process has made a request to enter its critical section and before that reque ...
... processes that will enter the critical section next cannot be postponed indefinitely 3. Bounded Waiting - A bound must exist on the number of times that other processes are allowed to enter their critical sections after a process has made a request to enter its critical section and before that reque ...
Threads
... Allows identification of parallel sections Manages most of the details of threading Block is in ―^{ }‖ - ˆ{ printf("I am a block"); } ...
... Allows identification of parallel sections Manages most of the details of threading Block is in ―^{ }‖ - ˆ{ printf("I am a block"); } ...
OS - PESIT South
... The process has arrived in the order p1, p2, p3, p4, p5 all at time 0. a. Draw Gantt charts for the execution of these processes using FCFS, SJF, a nonpreemptive priority and RR (quantum=1) scheduling. b. What is the turnaround time and waiting time of each process for each of the scheduling algorit ...
... The process has arrived in the order p1, p2, p3, p4, p5 all at time 0. a. Draw Gantt charts for the execution of these processes using FCFS, SJF, a nonpreemptive priority and RR (quantum=1) scheduling. b. What is the turnaround time and waiting time of each process for each of the scheduling algorit ...
Notes on Operating Systems
... that is the program’s entry point. main typically calls other functions, and when it returns the program terminates. An operating system, in contradistinction, has many different entry points, one for each event type. And it is not supposed to terminate — when it finishes handling one event, it just ...
... that is the program’s entry point. main typically calls other functions, and when it returns the program terminates. An operating system, in contradistinction, has many different entry points, one for each event type. And it is not supposed to terminate — when it finishes handling one event, it just ...