Interrupts
... The concept of interrupts was introduced, with Atlas, and used to provide some concurrency in computing by allowing I/O devices to proceed with data transfers while the CPU performed other tasks instead of constantly polling the I/O device. An interrupt facility allows the I/O devices to signal the ...
... The concept of interrupts was introduced, with Atlas, and used to provide some concurrency in computing by allowing I/O devices to proceed with data transfers while the CPU performed other tasks instead of constantly polling the I/O device. An interrupt facility allows the I/O devices to signal the ...
Design and Implementation of Safety Critical Real
... running at different criticality levels. To achieve reliability, re-usability, and cost reduction, a significant trend in building large complex real-time systems is to integrate separate application modules of different criticality on a common hardware platform. Thus different applications hosted o ...
... running at different criticality levels. To achieve reliability, re-usability, and cost reduction, a significant trend in building large complex real-time systems is to integrate separate application modules of different criticality on a common hardware platform. Thus different applications hosted o ...
Thread
... many requests simultaneously. Example: multimedia, database applications, web applications. ...
... many requests simultaneously. Example: multimedia, database applications, web applications. ...
Dell OpenManage Deployment Toolkit Version 5.2.1 User`s Guide
... script-based and RPM-based installation for deploying large number of systems on a pre-operating system environment in a reliable way, without changing their current deployment processes. Using DTK you can install operating systems on Dell systems in BIOS or Unified Extensible Firmware Interface (UE ...
... script-based and RPM-based installation for deploying large number of systems on a pre-operating system environment in a reliable way, without changing their current deployment processes. Using DTK you can install operating systems on Dell systems in BIOS or Unified Extensible Firmware Interface (UE ...
PowerPoint
... Mach: Summary Mach is a microkernel designed to be the core of a distributed UNIX-like system. It communicates via sending messages directly between different applications via ports, and handles only the most basic operating system functions on its own. More advanced functions are handled by server ...
... Mach: Summary Mach is a microkernel designed to be the core of a distributed UNIX-like system. It communicates via sending messages directly between different applications via ports, and handles only the most basic operating system functions on its own. More advanced functions are handled by server ...
Threads (and more on Processes)
... • Allows many user level threads to be mapped to many kernel threads • Allows the operating system to create a sufficient number of kernel threads • Solaris prior to version 9 • Windows NT/2000 with the ThreadFiber ...
... • Allows many user level threads to be mapped to many kernel threads • Allows the operating system to create a sufficient number of kernel threads • Solaris prior to version 9 • Windows NT/2000 with the ThreadFiber ...
Open MP
... At any point in its instruction stream a thread can figure out which thread it is Convenient to be able to write code that says: “If you’re thread 1 do this, otherwise to that” ...
... At any point in its instruction stream a thread can figure out which thread it is Convenient to be able to write code that says: “If you’re thread 1 do this, otherwise to that” ...
Threads Implementation
... communication to maintain the appropriate number of kernel threads allocated to the application/ • Typically use an intermediate data structure between user and kernel threads – lightweight process (LWP): – Appears to be a virtual processor on which process can schedule user thread to run. – Each LW ...
... communication to maintain the appropriate number of kernel threads allocated to the application/ • Typically use an intermediate data structure between user and kernel threads – lightweight process (LWP): – Appears to be a virtual processor on which process can schedule user thread to run. – Each LW ...
Red Hat Enterprise Linux 4 Update 1 EAL4 High Level Design
... Intel and Pentium are trademarks of Intel Corporation in the United States, other countries, or both. Other company, product, and service names may be trademarks or service marks of others. This document is provided “AS IS” with no express or implied warranties. Use the information in this document ...
... Intel and Pentium are trademarks of Intel Corporation in the United States, other countries, or both. Other company, product, and service names may be trademarks or service marks of others. This document is provided “AS IS” with no express or implied warranties. Use the information in this document ...
What is System Hang and How to Handle it
... We propose a self-healing framework to handle system hang automatically and refer to it as SHFH, which can be deployed on OS (currently implemented on Linux) dynamically. One unique feature is that a “light-heavy” detection strategy is adopted to make intelligent tradeoffs between the performance ov ...
... We propose a self-healing framework to handle system hang automatically and refer to it as SHFH, which can be deployed on OS (currently implemented on Linux) dynamically. One unique feature is that a “light-heavy” detection strategy is adopted to make intelligent tradeoffs between the performance ov ...
Threads
... We discuss how Middleware is supported by the Operating System (OS) facilities at the nodes of a distributed system. The OS facilitates: ...
... We discuss how Middleware is supported by the Operating System (OS) facilities at the nodes of a distributed system. The OS facilitates: ...
Computer Applications in Management
... And totally different from what you have on your desk. Don't say: what seems to be a mainframe today is on your desktop tomorrow. Apart from the CPU's (processors) that is far from true. Mainframe is an industry term for a large computer. The name comes from the way the machine is build up: all unit ...
... And totally different from what you have on your desk. Don't say: what seems to be a mainframe today is on your desktop tomorrow. Apart from the CPU's (processors) that is far from true. Mainframe is an industry term for a large computer. The name comes from the way the machine is build up: all unit ...
Threads
... – Like software interrupt that notifies a process of an event • By one process to another process • By the kernel to a process ...
... – Like software interrupt that notifies a process of an event • By one process to another process • By the kernel to a process ...
SecureSwitch: BIOS-Assisted Isolation and Switch between Trusted
... Protecting commodity systems that run commercial operating systems (OS) without significantly degrading performance or usability still remains an open problem. To make matters worse, the overall system security depends on desktop applications with complex code-bases that perform multiple and inter-d ...
... Protecting commodity systems that run commercial operating systems (OS) without significantly degrading performance or usability still remains an open problem. To make matters worse, the overall system security depends on desktop applications with complex code-bases that perform multiple and inter-d ...
The following paper was originally published in the
... of these sub-objects. Each sub-object has its own context1 yet it shares the same address space and resources, such as open files, timers and signals, with other sub-objects of the same process. The design lets the sub-objects function independently while keeping cohesion among the sub-objects of th ...
... of these sub-objects. Each sub-object has its own context1 yet it shares the same address space and resources, such as open files, timers and signals, with other sub-objects of the same process. The design lets the sub-objects function independently while keeping cohesion among the sub-objects of th ...
PowerPoint
... • A Mutex (Mutual Exclusion) is a data element that allows multiple threads to synchronize their access to shared resources • Like a binary semaphore, a mutex has two states, locked and unlocked • Only one thread can lock a mutex • Once a mutex is locked, other threads will block when they try to lo ...
... • A Mutex (Mutual Exclusion) is a data element that allows multiple threads to synchronize their access to shared resources • Like a binary semaphore, a mutex has two states, locked and unlocked • Only one thread can lock a mutex • Once a mutex is locked, other threads will block when they try to lo ...
Threads
... * A pthread program illustrating how to * create a simple thread and some of the pthread API * This program implements the summation function where * the summation operation is run as a separate thread. ...
... * A pthread program illustrating how to * create a simple thread and some of the pthread API * This program implements the summation function where * the summation operation is run as a separate thread. ...
Chapter 4 Notes
... Extensions to C, C++ languages, API, and run-time library Allows identification of parallel sections Manages most of the details of threading Block is in “^{ }” - ˆ{ printf("I am a block"); } Blocks placed in dispatch queue ...
... Extensions to C, C++ languages, API, and run-time library Allows identification of parallel sections Manages most of the details of threading Block is in “^{ }” - ˆ{ printf("I am a block"); } Blocks placed in dispatch queue ...
Proceedings of the General Track: 2003 USENIX Annual Technical Conference
... the platform upon which they are built [Goldberg73]. Type I VMMs such as IBM’s VM/370, Disco, and VMware’s ESX Server are implemented directly on the physical hardware. Type II VMMs are built completely on top of a host operating system. SimOS, User-Mode Linux, and UMLinux are all implemented comple ...
... the platform upon which they are built [Goldberg73]. Type I VMMs such as IBM’s VM/370, Disco, and VMware’s ESX Server are implemented directly on the physical hardware. Type II VMMs are built completely on top of a host operating system. SimOS, User-Mode Linux, and UMLinux are all implemented comple ...
Chapter 4
... • The child has its own copies of global variables and resources such as descriptors to open files; for example, the child process may close an open file without affecting that of its parent process. • In contrast, the threads in a process share the same address space; as a result, communication and ...
... • The child has its own copies of global variables and resources such as descriptors to open files; for example, the child process may close an open file without affecting that of its parent process. • In contrast, the threads in a process share the same address space; as a result, communication and ...
Operating System Support for Virtual Machines
... the platform upon which they are built [Goldberg73]. Type I VMMs such as IBM’s VM/370, Disco, and VMware’s ESX Server are implemented directly on the physical hardware. Type II VMMs are built completely on top of a host operating system. SimOS, User-Mode Linux, and UMLinux are all implemented comple ...
... the platform upon which they are built [Goldberg73]. Type I VMMs such as IBM’s VM/370, Disco, and VMware’s ESX Server are implemented directly on the physical hardware. Type II VMMs are built completely on top of a host operating system. SimOS, User-Mode Linux, and UMLinux are all implemented comple ...
ppt
... A piece of code (library) is “thread-safe” if it defines critical sections and uses synchronization to control access to them All entry points must be re-entrant Results not returned in shared global variables nor global statically allocated storage All calls should be synchronous ...
... A piece of code (library) is “thread-safe” if it defines critical sections and uses synchronization to control access to them All entry points must be re-entrant Results not returned in shared global variables nor global statically allocated storage All calls should be synchronous ...
Operating System Support for Virtual Machines
... the platform upon which they are built [Goldberg73]. Type I VMMs such as IBM’s VM/370, Disco, and VMware’s ESX Server are implemented directly on the physical hardware. Type II VMMs are built completely on top of a host operating system. SimOS, User-Mode Linux, and UMLinux are all implemented comple ...
... the platform upon which they are built [Goldberg73]. Type I VMMs such as IBM’s VM/370, Disco, and VMware’s ESX Server are implemented directly on the physical hardware. Type II VMMs are built completely on top of a host operating system. SimOS, User-Mode Linux, and UMLinux are all implemented comple ...