a. Real Time Operating Systems Notes
... A real-time operating system (RTOS) for an embedded system simplifies the design of real-time software by allowing the application to be divided into multiple threads managed by the RTOS. The kernel of an embedded RTOS needs to support multithreading, pre-emption, and thread priority. The RTOS will ...
... A real-time operating system (RTOS) for an embedded system simplifies the design of real-time software by allowing the application to be divided into multiple threads managed by the RTOS. The kernel of an embedded RTOS needs to support multithreading, pre-emption, and thread priority. The RTOS will ...
Lecture 9
... • A process is an active runtime environment that cradles a running program, providing an execution state along with certain resources, including file handles and registers, along with: ...
... • A process is an active runtime environment that cradles a running program, providing an execution state along with certain resources, including file handles and registers, along with: ...
INF1060: Introduction to Operating Systems and Data Communication
... Device controllers often have registers to hold status, give commands, ... Each type is different and require device-spesific software The software talking to the controller and giving commands is often called a ...
... Device controllers often have registers to hold status, give commands, ... Each type is different and require device-spesific software The software talking to the controller and giving commands is often called a ...
Document
... processed, the incoming interface should be RSVP enabled on the nodes. These PATH messages then get forwarded out of the node through an outgoing interface which is again should be RSVP enabled towards the destination after processing the message. RSVP messages are forwarded transparently if the nod ...
... processed, the incoming interface should be RSVP enabled on the nodes. These PATH messages then get forwarded out of the node through an outgoing interface which is again should be RSVP enabled towards the destination after processing the message. RSVP messages are forwarded transparently if the nod ...
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 ...
lecture.9
... • 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 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 ...
Operating Systems: Internals and Design Principles (2
... include embedded systems, smart phones, single-user workstations and personal computers, medium-sized shared systems, large mainframe and supercomputers, and specialized machines such as real-time systems. The variety is not just in the capacity and speed of machines, but in applications and system ...
... include embedded systems, smart phones, single-user workstations and personal computers, medium-sized shared systems, large mainframe and supercomputers, and specialized machines such as real-time systems. The variety is not just in the capacity and speed of machines, but in applications and system ...
Cost_Calculation
... • Distributed RAN architecture saves backhaul cost (less than half of the cost of existing architecture ) • Distributed RAN architecture supports 99.999% service-level availability compared to conventional network. In fact, full mesh is not required for realizing the 99.999% availability. Even parti ...
... • Distributed RAN architecture saves backhaul cost (less than half of the cost of existing architecture ) • Distributed RAN architecture supports 99.999% service-level availability compared to conventional network. In fact, full mesh is not required for realizing the 99.999% availability. Even parti ...
Threads Mini-Lab
... Example: IRIX, HP-UX Questions for discussion: Assume an application with 4 user threads How many kernel threads should be allocated, at minimum, for a 3-processor system, assuming maximum parallel execution is desirable? Assuming 2 threads block for lengthy periods, what is the minimum number ...
... Example: IRIX, HP-UX Questions for discussion: Assume an application with 4 user threads How many kernel threads should be allocated, at minimum, for a 3-processor system, assuming maximum parallel execution is desirable? Assuming 2 threads block for lengthy periods, what is the minimum number ...
Planning Guide version 6.0
... Fuel and Mirantis OpenStack run well on high-quality commodity hardware. The following sections give some basic information about minimal hardware requirements; choosing the right hardware requires an understanding of how your cloud environment will be used. Some general remarks: • For optimal perfo ...
... Fuel and Mirantis OpenStack run well on high-quality commodity hardware. The following sections give some basic information about minimal hardware requirements; choosing the right hardware requires an understanding of how your cloud environment will be used. Some general remarks: • For optimal perfo ...
Deadlocks
... no process can proceed unless one gives up some memory (preemption) frequent solutions: preallocation, virtual memory ...
... no process can proceed unless one gives up some memory (preemption) frequent solutions: preallocation, virtual memory ...
Next Generation Car Network - FlexRay
... FlexRay also offers many reliability features not available in CAN. Specifically, a redundant communication capability enables fully duplicated network configurations and schedule monitoring by hardware. FlexRay also offers flexible configurations, with support for topologies such as bus, star, and ...
... FlexRay also offers many reliability features not available in CAN. Specifically, a redundant communication capability enables fully duplicated network configurations and schedule monitoring by hardware. FlexRay also offers flexible configurations, with support for topologies such as bus, star, and ...
Operating Systems Concepts with Java
... The text is organized in seven major parts: • Overview: Chapters 1 through 3 explain what operating systems are, what they do, and how they are designed and constructed. They explain how the concept of an operating system has developed, what the common features of an operating system are, what an op ...
... The text is organized in seven major parts: • Overview: Chapters 1 through 3 explain what operating systems are, what they do, and how they are designed and constructed. They explain how the concept of an operating system has developed, what the common features of an operating system are, what an op ...
CPU Scheduling
... CPU scheduling is the basis of multiprogrammed operating systems. By switching the CPU among processes, the operating system can make the computer more productive. In this chapter, we introduce basic CPU-scheduling concepts and present several CPU-scheduling algorithms. We also consider the problem ...
... CPU scheduling is the basis of multiprogrammed operating systems. By switching the CPU among processes, the operating system can make the computer more productive. In this chapter, we introduce basic CPU-scheduling concepts and present several CPU-scheduling algorithms. We also consider the problem ...
ecs251 Spring 2007: Operating System Models #1: File Systems
... evenly over peers Decentralization: chord is fully distributed, no node more important than other, improves robustness Scalability: logarithmic growth of lookup costs with number of peers in network, even very large systems are feasible Availability: chord automatically adjusts its internal tables t ...
... evenly over peers Decentralization: chord is fully distributed, no node more important than other, improves robustness Scalability: logarithmic growth of lookup costs with number of peers in network, even very large systems are feasible Availability: chord automatically adjusts its internal tables t ...
BUILDING A DEPENDABLE OPERATING SYSTEM: FAULT TOLERANCE IN MINIX 3
... Hunt (Operating Systems Group, Microsoft Research), and Michael Swift (Computer Sciences Department, University of Wisconsin-Madison), for reviewing this thesis. It has been an honor to get direct feedback from some of the leading researchers in the field. Their extensive and constructive comments h ...
... Hunt (Operating Systems Group, Microsoft Research), and Michael Swift (Computer Sciences Department, University of Wisconsin-Madison), for reviewing this thesis. It has been an honor to get direct feedback from some of the leading researchers in the field. Their extensive and constructive comments h ...
Slide presentation with simulation results - OSPF
... Each router creates a router-LSA that describes its links to neighbors, and originates/floods a new LSA (with a larger sequence number) when the contents change (subject to MinLSInterval = 5 sec). OSPF allows multiple areas (clusters) for hierarchical routing. Each router in an area is provided with ...
... Each router creates a router-LSA that describes its links to neighbors, and originates/floods a new LSA (with a larger sequence number) when the contents change (subject to MinLSInterval = 5 sec). OSPF allows multiple areas (clusters) for hierarchical routing. Each router in an area is provided with ...
Red Hat Enterprise Linux 4 Update 1 EAL4 High Level Design
... of International Business Machines Corporation in the United States, other countries, or both. Linux is a registered trademark of Linus Torvalds. UNIX is a registered trademark of The Open Group in the United States and other countries. Intel and Pentium are trademarks of Intel Corporation in the Un ...
... of International Business Machines Corporation in the United States, other countries, or both. Linux is a registered trademark of Linus Torvalds. UNIX is a registered trademark of The Open Group in the United States and other countries. Intel and Pentium are trademarks of Intel Corporation in the Un ...
On peer-to-peer (P2P) content delivery
... Upon initial connection, a Gnutella peer joins the network via at least one known peer, whose IP address is obtained either via an existing list of pre-configured addresses, or via a bootstrapping process that talked to a known source of the Gnutella peer, e.g., a web server, a UDP host, or even IRC ...
... Upon initial connection, a Gnutella peer joins the network via at least one known peer, whose IP address is obtained either via an existing list of pre-configured addresses, or via a bootstrapping process that talked to a known source of the Gnutella peer, e.g., a web server, a UDP host, or even IRC ...
Operating Systems
... (software) timer is an object used to keep track of time. In addition to systemwide timers, most operating systems allow threads (or processes) to have their own timers. A per thread (or per process) timer is created by the kernel on behalf of a thread (or process) when the thread calls the create t ...
... (software) timer is an object used to keep track of time. In addition to systemwide timers, most operating systems allow threads (or processes) to have their own timers. A per thread (or per process) timer is created by the kernel on behalf of a thread (or process) when the thread calls the create t ...
layered approach for runtime fault recovery in noc-based
... network can stall or crash applications, even though the MPSoCs’ network has alternative faultfree paths to a given destination. Runtime Fault Tolerance provide self-organization mechanisms to continue delivering their processing services despite defective cores due to the presence of permanent and/ ...
... network can stall or crash applications, even though the MPSoCs’ network has alternative faultfree paths to a given destination. Runtime Fault Tolerance provide self-organization mechanisms to continue delivering their processing services despite defective cores due to the presence of permanent and/ ...
Introduction to Embedded Systems - Welcome to test.postgrad.eee
... The goal of these materials is to develop academic curriculum materials for students that can be used in undergraduate degree programs in Computer Science, Computer Engineering, and Electrical Engineering. Student laboratory assignments developed for these materials use Windows Embedded CE 6.0 a com ...
... The goal of these materials is to develop academic curriculum materials for students that can be used in undergraduate degree programs in Computer Science, Computer Engineering, and Electrical Engineering. Student laboratory assignments developed for these materials use Windows Embedded CE 6.0 a com ...
Distributed operating system
A distributed operating system is a software over a collection of independent, networked, communicating, and physically separate computational nodes. Each individual node holds a specific software subset of the global aggregate operating system. Each subset is a composite of two distinct service provisioners. The first is a ubiquitous minimal kernel, or microkernel, that directly controls that node’s hardware. Second is a higher-level collection of system management components that coordinate the node's individual and collaborative activities. These components abstract microkernel functions and support user applications.The microkernel and the management components collection work together. They support the system’s goal of integrating multiple resources and processing functionality into an efficient and stable system. This seamless integration of individual nodes into a global system is referred to as transparency, or single system image; describing the illusion provided to users of the global system’s appearance as a single computational entity.