ppt
... The Linux server maps physical memory into its address space, and acts as the pager for any user processes it creates. The Server cannot directly access the hardware page tables, and must maintain logical pages in its own address space. ...
... The Linux server maps physical memory into its address space, and acts as the pager for any user processes it creates. The Server cannot directly access the hardware page tables, and must maintain logical pages in its own address space. ...
Figure 15.1 A distributed multimedia system
... it always runs and its code is executed with complete access privileged for the physical resources on its host computer A kernel process execute with the processor in supervisor (privileged) mode; the kernel arranges that other processes execute in user (unprivileged) mode A kernel also sets up ...
... it always runs and its code is executed with complete access privileged for the physical resources on its host computer A kernel process execute with the processor in supervisor (privileged) mode; the kernel arranges that other processes execute in user (unprivileged) mode A kernel also sets up ...
ppt
... How fast is the Mach system? It seems that all this flexibility and simplicity through use of simple primitives will come at a large overhead. The researchers are optimistic, but I'm still sceptical. ...
... How fast is the Mach system? It seems that all this flexibility and simplicity through use of simple primitives will come at a large overhead. The researchers are optimistic, but I'm still sceptical. ...
Lecture #3: Operating
... Some sharing of file can be permitted, controlled Commutate with each other, other physical systems via networking Useful for development, testing Consolidation of many low-resource use systems onto fewer busier systems “Open Virtual Machine Format”, standard format of virtual machines, al ...
... Some sharing of file can be permitted, controlled Commutate with each other, other physical systems via networking Useful for development, testing Consolidation of many low-resource use systems onto fewer busier systems “Open Virtual Machine Format”, standard format of virtual machines, al ...
Chapter 10: Multiprocessor and Real
... • Kernel can execute on any processor • Each processor does self-scheduling • Complicates the operating system – Make sure two processors do not choose the same process ...
... • Kernel can execute on any processor • Each processor does self-scheduling • Complicates the operating system – Make sure two processors do not choose the same process ...
Operating Systems
... • Kernel can execute on any processor • Each processor does self-scheduling • Complicates the operating system – Make sure two processors do not choose the same process ...
... • Kernel can execute on any processor • Each processor does self-scheduling • Complicates the operating system – Make sure two processors do not choose the same process ...
Chapter 1 Slides
... Process needs resources to accomplish its task CPU, memory, I/O, files (received upon creation and along execution) Initialization data (e.g., a process for presenting the status of a file) Process termination requires reclaim of any reusable resources Single-threaded process has one ...
... Process needs resources to accomplish its task CPU, memory, I/O, files (received upon creation and along execution) Initialization data (e.g., a process for presenting the status of a file) Process termination requires reclaim of any reusable resources Single-threaded process has one ...
Components of a Linux System
... data structures are kept in the same single address space, so that no context switches are necessary for system calls or hardware interrupt. The single address space contains all kernel codes, including all device drivers, file systems, and networking code ...
... data structures are kept in the same single address space, so that no context switches are necessary for system calls or hardware interrupt. The single address space contains all kernel codes, including all device drivers, file systems, and networking code ...
Windows booting procedure
... on computer and warm booting is the processes happening when we reset the computer. During the booting process the computer loads the operating system to its memory and prepares it for use. ...
... on computer and warm booting is the processes happening when we reset the computer. During the booting process the computer loads the operating system to its memory and prepares it for use. ...
Unix
... Manage software…. Kernel. Interact with User…. Shell (using utilities). Control peripherals…. all peripherals are part of the UNIX File System. In summary: You type a “utility” into the UNIX Shell, which gets passed to the Kernel for processing. ...
... Manage software…. Kernel. Interact with User…. Shell (using utilities). Control peripherals…. all peripherals are part of the UNIX File System. In summary: You type a “utility” into the UNIX Shell, which gets passed to the Kernel for processing. ...
Unix
... Manage software…. Kernel. Interact with User…. Shell (using utilities). Control peripherals…. all peripherals are part of the UNIX File System. In summary: You type a “utility” into the UNIX Shell, which gets passed to the Kernel for processing. ...
... Manage software…. Kernel. Interact with User…. Shell (using utilities). Control peripherals…. all peripherals are part of the UNIX File System. In summary: You type a “utility” into the UNIX Shell, which gets passed to the Kernel for processing. ...
SCADA Systems, RTOS
... All 3 lower levels may be realized by kernel, but these functions may be split on different levels. When threads are created, Thread Control Blocks are associated with them. In addition to commonly used here such data as Thread ID, starting address, context, synchronization information, for RTOS the ...
... All 3 lower levels may be realized by kernel, but these functions may be split on different levels. When threads are created, Thread Control Blocks are associated with them. In addition to commonly used here such data as Thread ID, starting address, context, synchronization information, for RTOS the ...
PPT - Pages - University of Wisconsin–Madison
... – Example: 1 mostly CPU-bound job, 3 mostly I/O-bound jobs ...
... – Example: 1 mostly CPU-bound job, 3 mostly I/O-bound jobs ...
Features Of Sprite Operating System
... source to the target. It depends on the state associated with the process. ...
... source to the target. It depends on the state associated with the process. ...
No Slide Title
... Sometimes, a waiting process is never again able to change state, because the resources it has requested are held by other waiting processes. This situation is called a DEADLOCK. ...
... Sometimes, a waiting process is never again able to change state, because the resources it has requested are held by other waiting processes. This situation is called a DEADLOCK. ...
Errors and Exception Handling
... When system call or library errors occur, the errno variable gets set ...
... When system call or library errors occur, the errno variable gets set ...
Chapter 21: The Linux System Objectives 21.1 History (不考) Linux 2.0
... three main bodies of code: kernel, kernel system libraries libraries, and system utilities; the most important distinction between the kernel and all other components The kernel is responsible for maintaining the important ...
... three main bodies of code: kernel, kernel system libraries libraries, and system utilities; the most important distinction between the kernel and all other components The kernel is responsible for maintaining the important ...
What is an Operating System?
... service routine generally, through the interrupt vector, which contains the addresses of all the service routines Interrupt architecture must save the address of the interrupted instruction A trap or exception is a softwaregenerated interrupt caused either by an error or a user request An oper ...
... service routine generally, through the interrupt vector, which contains the addresses of all the service routines Interrupt architecture must save the address of the interrupted instruction A trap or exception is a softwaregenerated interrupt caused either by an error or a user request An oper ...
Module 6: CPU Scheduling
... Assume that 5 processes arrive at the ready queue at the times shown below. The estimated next burst times are also shown. Assume that an interrupt occurs at every arrival time. ...
... Assume that 5 processes arrive at the ready queue at the times shown below. The estimated next burst times are also shown. Assume that an interrupt occurs at every arrival time. ...
CHAPTER 1: Computer Systems
... Scheduling High-level scheduling Placed in queue based on level of priority and eventually executed ...
... Scheduling High-level scheduling Placed in queue based on level of priority and eventually executed ...
CS 571 Operating Systems - GMU Computer Science
... • Stack Pointer (SP): points to the top of the current stack in memory. The stack contains one frame for each procedure that has been entered but not yet exited.! • Program Status Word (PSW): contains the condition code bits and various other control bits. ! When time multiplexing the CPU, the ...
... • Stack Pointer (SP): points to the top of the current stack in memory. The stack contains one frame for each procedure that has been entered but not yet exited.! • Program Status Word (PSW): contains the condition code bits and various other control bits. ! When time multiplexing the CPU, the ...
Introduction to Operating Systems
... message passing for the exchange of information between processes Error Detection – take measures to correct errors to ensure a consistent state ...
... message passing for the exchange of information between processes Error Detection – take measures to correct errors to ensure a consistent state ...