Benchmarking Real-time Operating Systems for use in Radio Base
... A real-time operating system is dierent from a desktop or server operating system by usually being much smaller and focus on deterministic and timely behavior. Real-time kernels are often microkernels, which means they are small and most services and drivers are executed outside ...
... A real-time operating system is dierent from a desktop or server operating system by usually being much smaller and focus on deterministic and timely behavior. Real-time kernels are often microkernels, which means they are small and most services and drivers are executed outside ...
Recursive or iterative routing? Hybrid!
... in the ID space according to their identifiers. The Chord protocol for example arranges its nodes in a 1-dimensional ring-shaped ID space. Content identifiers (content ID) are generated with the same hash function and content is stored at nodes that’s node ID is close to the content ID. To provide e ...
... in the ID space according to their identifiers. The Chord protocol for example arranges its nodes in a 1-dimensional ring-shaped ID space. Content identifiers (content ID) are generated with the same hash function and content is stored at nodes that’s node ID is close to the content ID. To provide e ...
Document
... Suppose that we wanted to provide a solution to the consumer-producer problem that fills all the buffers. We can do so by having an integer counter that keeps track of the number of full buffers. Initially, counter is set to 0. It is incremented by the producer after it produces a new buffer and is ...
... Suppose that we wanted to provide a solution to the consumer-producer problem that fills all the buffers. We can do so by having an integer counter that keeps track of the number of full buffers. Initially, counter is set to 0. It is incremented by the producer after it produces a new buffer and is ...
unit-1-The-UNIX-Operating-System
... disks, modems, printers, network cards etc.) in a safe, efficient and abstract way. For example, an OS ensures safe access to a printer by allowing only one application program to send data directly to the printer at any one time. An OS encourages efficient use of the CPU by suspending programs that ...
... disks, modems, printers, network cards etc.) in a safe, efficient and abstract way. For example, an OS ensures safe access to a printer by allowing only one application program to send data directly to the printer at any one time. An OS encourages efficient use of the CPU by suspending programs that ...
Bluetooth-an Enabler for Personal Area Networking Presentation
... In a scatternet, at least one Bluetooth unit is member of more than one piconet. These inter-piconet nodes might have a slave role in numerous piconets but can have the master role in only one of them. Irrespective of the roles, the inter-piconet node must schedule its presence in all the piconets i ...
... In a scatternet, at least one Bluetooth unit is member of more than one piconet. These inter-piconet nodes might have a slave role in numerous piconets but can have the master role in only one of them. Irrespective of the roles, the inter-piconet node must schedule its presence in all the piconets i ...
Module 6: CPU Scheduling
... jumping to the proper location in the user program to restart that program ...
... jumping to the proper location in the user program to restart that program ...
Figure 5.01 - Ceng Anadolu
... Thread management done by user-level threads library: the user-level process (user-level threads) a library linked into the program manages the threads. ...
... Thread management done by user-level threads library: the user-level process (user-level threads) a library linked into the program manages the threads. ...
COS 318: Operating Systems Implementing Threads
... threads due to crossing protection boundaries ...
... threads due to crossing protection boundaries ...
M.Tech (Information Technology) - National Institute Of Engineering
... technical education. The quality factors considered to sustain and grow as a top-ranking institution are: Faculty Development Programme, Infrastructure, Continuing Education System, Consultancy and Research. The concerted effort of stake holders at NIE has made it get autonomous status, grants under ...
... technical education. The quality factors considered to sustain and grow as a top-ranking institution are: Faculty Development Programme, Infrastructure, Continuing Education System, Consultancy and Research. The concerted effort of stake holders at NIE has made it get autonomous status, grants under ...
ppt - LIFL
... Direct communication based on NAT traversal Name space independent from the physical one Fully distributed management system User-level implementation ...
... Direct communication based on NAT traversal Name space independent from the physical one Fully distributed management system User-level implementation ...
Vivaldi: A Decentralized Network Coordinate System
... error. A suitable space must cope with the difficulties introduced by Internet routing, transmission time, and queuing. • Scaling to a large number of hosts. Synthetic coordinate systems are of most value in large-scale applications; if only few hosts are involved, direct measurement of RTT is pract ...
... error. A suitable space must cope with the difficulties introduced by Internet routing, transmission time, and queuing. • Scaling to a large number of hosts. Synthetic coordinate systems are of most value in large-scale applications; if only few hosts are involved, direct measurement of RTT is pract ...
chapter 1 - University of Virginia
... simulator monitors the execution and generates statistics on the events that occur. By evaluating these statistics, a researcher can estimate the performance of the architecture. There are a variety of simulators that can be used to model microprocessor behavior. However, current simulators do not s ...
... simulator monitors the execution and generates statistics on the events that occur. By evaluating these statistics, a researcher can estimate the performance of the architecture. There are a variety of simulators that can be used to model microprocessor behavior. However, current simulators do not s ...
Lecture 1: Course Introduction and Overview
... Note: Some slides and/or pictures in the following are adapted from slides ©2005 Silberschatz, Galvin, and Gagne. Slides courtesy of Anthony D. Joseph, John Kubiatowicz, AJ Shankar, George Necula, Alex Aiken, Eric Brewer, Ras Bodik, Ion Stoica, Doug Tygar, and David Wagner. ...
... Note: Some slides and/or pictures in the following are adapted from slides ©2005 Silberschatz, Galvin, and Gagne. Slides courtesy of Anthony D. Joseph, John Kubiatowicz, AJ Shankar, George Necula, Alex Aiken, Eric Brewer, Ras Bodik, Ion Stoica, Doug Tygar, and David Wagner. ...
Describe number and configuration of disks on
... goes down a cloud will survive with half its normal network bandwidth still available for the affected nodes. Another low-level hardware feature that provides redundancy is RAID1 for disks on Infrastructure and Storage nodes to keep an operating system intact in case of a disk failure. Also it’s hig ...
... goes down a cloud will survive with half its normal network bandwidth still available for the affected nodes. Another low-level hardware feature that provides redundancy is RAID1 for disks on Infrastructure and Storage nodes to keep an operating system intact in case of a disk failure. Also it’s hig ...
Geometric Ad-Hoc Routing: Of Theory and Practice
... • That’s why some researchers proposed partial link reversal, where nodes only reverse links that were not reversed before. • However, it was shown by Busch et al. that in the extreme case also partial link reversal is not efficient, it may in fact even worse be than regular link reversal. • Still, ...
... • That’s why some researchers proposed partial link reversal, where nodes only reverse links that were not reversed before. • However, it was shown by Busch et al. that in the extreme case also partial link reversal is not efficient, it may in fact even worse be than regular link reversal. • Still, ...
HotSDN`12 ~ Revisiting Routing Control Platforms with the Eyes and
... the RF-Client. Programming the virtual switches (OVS in Fig. 2), we can select a mode of operation where routing protocol messages are sent ‘down’ to the physical devices or are kept ‘up’ in the virtual network plane, which can be a reproduction of the discovered physical connectivity or a simplified ...
... the RF-Client. Programming the virtual switches (OVS in Fig. 2), we can select a mode of operation where routing protocol messages are sent ‘down’ to the physical devices or are kept ‘up’ in the virtual network plane, which can be a reproduction of the discovered physical connectivity or a simplified ...
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.