Operating System
... A program that is loaded into memory and is executing is commonly referred to as a process. When a process executes, it typically executes for only a short time before it either finishes or needs to perform I/O. I/O may be interactive; that is, output is to a display for the user and input is from a ...
... A program that is loaded into memory and is executing is commonly referred to as a process. When a process executes, it typically executes for only a short time before it either finishes or needs to perform I/O. I/O may be interactive; that is, output is to a display for the user and input is from a ...
第五章
... － signal may be synchronous or asynchronous: * synchronous: signals are delivered to the same process that caused the signal(e.g.illegal memory access, divide by zero); * asynchronous:notified by an event external to the process. － signal must be handled － method of handling a signal * ignore(some s ...
... － signal may be synchronous or asynchronous: * synchronous: signals are delivered to the same process that caused the signal(e.g.illegal memory access, divide by zero); * asynchronous:notified by an event external to the process. － signal must be handled － method of handling a signal * ignore(some s ...
Threading
... Fibers are an even lighter unit of scheduling which are cooperatively scheduled: a running fiber must explicitly "yield" to allow another fiber to run, which makes their implementation much easier than kernel or user threads. A fiber can be scheduled to run in any thread in the same process. This pe ...
... Fibers are an even lighter unit of scheduling which are cooperatively scheduled: a running fiber must explicitly "yield" to allow another fiber to run, which makes their implementation much easier than kernel or user threads. A fiber can be scheduled to run in any thread in the same process. This pe ...
FM V21.0 Install Guide
... A routine has been provided to set up your Manager account, DINZMGR. You MUST run this routine in your Manager account; be sure to move there. On-line help is provided to aid in running this routine. DINZMGR accomplishes two tasks: 1. Renames routines in the Manager account to a new name. 2. Sets ^% ...
... A routine has been provided to set up your Manager account, DINZMGR. You MUST run this routine in your Manager account; be sure to move there. On-line help is provided to aid in running this routine. DINZMGR accomplishes two tasks: 1. Renames routines in the Manager account to a new name. 2. Sets ^% ...
Disco: Running Commodity Operating Systems on Scalable
... waiting. Similarly, the monitor does not know when a page is no longer being actively used by a virtual machine, so it cannot reallocate it to another virtual machine. In general, the monitor must make resource management decisions without the high-level knowledge that an operating system would have ...
... waiting. Similarly, the monitor does not know when a page is no longer being actively used by a virtual machine, so it cannot reallocate it to another virtual machine. In general, the monitor must make resource management decisions without the high-level knowledge that an operating system would have ...
Multithreaded Programming
... To discuss the APIs for the Pthreads, Windows, and Java thread libraries To explore several strategies that provide implicit threading To examine issues related to multithreaded programming To cover operating system support for threads in Windows and Linux ...
... To discuss the APIs for the Pthreads, Windows, and Java thread libraries To explore several strategies that provide implicit threading To examine issues related to multithreaded programming To cover operating system support for threads in Windows and Linux ...
Tessellation Space-T..
... Isolation of resources and inter-partition communication leads to enhanced security and correctness. By enforcing predetermined communication patterns, the kernel can prevent many classes of attack and incorrect behaviors. Even if dynamic inter-partition communication patterns are desired, the p ...
... Isolation of resources and inter-partition communication leads to enhanced security and correctness. By enforcing predetermined communication patterns, the kernel can prevent many classes of attack and incorrect behaviors. Even if dynamic inter-partition communication patterns are desired, the p ...
Operating System Support for Virtual Machines
... called UMLinux [Buchacker01]. UMLinux was developed by researchers at the University of Erlangen-Nürnberg for use in fault-injection experiments. UMLinux is a Type II VMM: the guest operating system and all guest applications run as a single process (the guestmachine process) on a host Linux operati ...
... called UMLinux [Buchacker01]. UMLinux was developed by researchers at the University of Erlangen-Nürnberg for use in fault-injection experiments. UMLinux is a Type II VMM: the guest operating system and all guest applications run as a single process (the guestmachine process) on a host Linux operati ...
Operating System Support for Virtual Machines
... called UMLinux [Buchacker01]. UMLinux was developed by researchers at the University of Erlangen-Nürnberg for use in fault-injection experiments. UMLinux is a Type II VMM: the guest operating system and all guest applications run as a single process (the guestmachine process) on a host Linux operati ...
... called UMLinux [Buchacker01]. UMLinux was developed by researchers at the University of Erlangen-Nürnberg for use in fault-injection experiments. UMLinux is a Type II VMM: the guest operating system and all guest applications run as a single process (the guestmachine process) on a host Linux operati ...
DB401 64-bit Solutions on SQL Server
... node for its lifetime Potential for leveraging local cache for all of its tasks Can direct specific connections to specific nodes SEAS06 64-bit Solutions on SQL Server 2005 ...
... node for its lifetime Potential for leveraging local cache for all of its tasks Can direct specific connections to specific nodes SEAS06 64-bit Solutions on SQL Server 2005 ...
A Real-Time Linux
... other soft interrupts are pending. If not, a hard return from interrupt is executed. If there are interrupts pending, then the highest priority one is processed. Linux is reasonably easy to modify because, for the most part, the kernel code controls interrupt hardware through the routines cli() and ...
... other soft interrupts are pending. If not, a hard return from interrupt is executed. If there are interrupts pending, then the highest priority one is processed. Linux is reasonably easy to modify because, for the most part, the kernel code controls interrupt hardware through the routines cli() and ...
A Real-Time Linux
... other soft interrupts are pending. If not, a hard return from interrupt is executed. If there are interrupts pending, then the highest priority one is processed. Linux is reasonably easy to modify because, for the most part, the kernel code controls interrupt hardware through the routines cli() and ...
... other soft interrupts are pending. If not, a hard return from interrupt is executed. If there are interrupts pending, then the highest priority one is processed. Linux is reasonably easy to modify because, for the most part, the kernel code controls interrupt hardware through the routines cli() and ...
Providing Dynamic Update in an Operating System
... In addition to the above mentioned impact on availability, dynamically updatable systems have other benefits. Such systems provide a good prototyping environment. They allow, for example, a new page replacement, file system, or network policy to be tested without rebooting. Further, in more mature s ...
... In addition to the above mentioned impact on availability, dynamically updatable systems have other benefits. Such systems provide a good prototyping environment. They allow, for example, a new page replacement, file system, or network policy to be tested without rebooting. Further, in more mature s ...
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 ...
Chapter 3: Processes
... Processes within a system may be independent or cooperating Independent process cannot affect or be affected by the execution of another ...
... Processes within a system may be independent or cooperating Independent process cannot affect or be affected by the execution of another ...
address space
... – kernel threads may be overly general, in order to support needs of different users, languages, etc. – the kernel doesn’t trust the user, so there must be lots of checking on kernel calls ...
... – kernel threads may be overly general, in order to support needs of different users, languages, etc. – the kernel doesn’t trust the user, so there must be lots of checking on kernel calls ...
the internal operating system
... and attempts to take appropriate action to ensure smooth and efficient system operation. Some monitors can even reconfigure and reassign resources dynamically to optimize performance, particularly in clustered systems. These roles are handled by other operating system components in some systems. To ...
... and attempts to take appropriate action to ensure smooth and efficient system operation. Some monitors can even reconfigure and reassign resources dynamically to optimize performance, particularly in clustered systems. These roles are handled by other operating system components in some systems. To ...
Embedded Operating Systems and Linux
... What is an Embedded OS? • An embedded OS is an operating system which runs on any embedded platform. • Embedded platforms are generally required to function without human intervention. • A typical embedded system consists of a single-board microcomputer or SOC with an OS and some software loaded in ...
... What is an Embedded OS? • An embedded OS is an operating system which runs on any embedded platform. • Embedded platforms are generally required to function without human intervention. • A typical embedded system consists of a single-board microcomputer or SOC with an OS and some software loaded in ...
On Memory Systems and Their Design
... what a typical processor requires. Disks are block-oriented devices, which means they read and write data only in large chunks; the typical granularity is 512 B. Processors, in contrast, typically operate at the granularity of 4 B or 8 B data words. To use a disk, a microprocessor must have addition ...
... what a typical processor requires. Disks are block-oriented devices, which means they read and write data only in large chunks; the typical granularity is 512 B. Processors, in contrast, typically operate at the granularity of 4 B or 8 B data words. To use a disk, a microprocessor must have addition ...
Interrupts and Interrupt Handlers
... Ack receipt of interrupt and disables interrupt delivery on the line (mask_and_ack_8259A()) Ensures a valid handler registered and enabled, not executing Calls handle_IRQ_event to run the installed all IHs one by one for the line ...
... Ack receipt of interrupt and disables interrupt delivery on the line (mask_and_ack_8259A()) Ensures a valid handler registered and enabled, not executing Calls handle_IRQ_event to run the installed all IHs one by one for the line ...
Running Commodity Operating Systems on Scalable Multiprocessors
... impact on many of the standard modules that make up a modern system, such as virtual memory management and the scheduler. As a result, the system software for these machines is generally delivered significantly later than the hardware. Even when the changes are functionally complete, they are likely ...
... impact on many of the standard modules that make up a modern system, such as virtual memory management and the scheduler. As a result, the system software for these machines is generally delivered significantly later than the hardware. Even when the changes are functionally complete, they are likely ...
1 Introduction 2 Problem Description Disco: Running Commodity
... impact on many of the standard modules that make up a modern system, such as virtual memory management and the scheduler. As a result, the system software for these machines is generally delivered significantly later than the hardware. Even when the changes are functionally complete, they are likely ...
... impact on many of the standard modules that make up a modern system, such as virtual memory management and the scheduler. As a result, the system software for these machines is generally delivered significantly later than the hardware. Even when the changes are functionally complete, they are likely ...