2-Operating-System Structures
... Resource allocation - When multiple users or multiple jobs running concurrently, resources must be allocated to each of them ...
... Resource allocation - When multiple users or multiple jobs running concurrently, resources must be allocated to each of them ...
lecture1
... Computer system can be divided into four components: Hardware – provides basic computing resources CPU, memory, I/O devices Machine language: small set of instructions to move data around, do arithmetic, compare values, etc. visible to an assembly language programmer. Operating system/Kernel ...
... Computer system can be divided into four components: Hardware – provides basic computing resources CPU, memory, I/O devices Machine language: small set of instructions to move data around, do arithmetic, compare values, etc. visible to an assembly language programmer. Operating system/Kernel ...
Using PlanetLab for Network Research: Myths, Realities, and Best Practices 1
... Second, services for off-PlanetLab users and network measurement projects that send probes off-PlanetLab observe the commercial Internet. Although most of PlanetLab is on the GREN, most machines also connect to the commercial network or are part of transit ASes. The PlanetFlow auditing service [4] ...
... Second, services for off-PlanetLab users and network measurement projects that send probes off-PlanetLab observe the commercial Internet. Although most of PlanetLab is on the GREN, most machines also connect to the commercial network or are part of transit ASes. The PlanetFlow auditing service [4] ...
Chapter 14
... • How to access MS-DOS emulators from other operating systems • How MS-DOS provided a foundation for early Microsoft Windows releases • The basics of command-driven systems and how to construct simple batch files • How one processor can be shared among multiple processes • The limitations of MS-DOS ...
... • How to access MS-DOS emulators from other operating systems • How MS-DOS provided a foundation for early Microsoft Windows releases • The basics of command-driven systems and how to construct simple batch files • How one processor can be shared among multiple processes • The limitations of MS-DOS ...
(Silberschatz) I/O subsystems
... Spooling - hold output for a device If device can serve only one request at a time i.e., Printing Device reservation - provides exclusive access to a ...
... Spooling - hold output for a device If device can serve only one request at a time i.e., Printing Device reservation - provides exclusive access to a ...
Wire-Speed Total Order
... is comprised of two Ethernet switches and two Network Interface Cards (NICs) per node. For the simplicity of presentation, we assume that all the nodes are directly connected to the two switches. However, our algorithm can work in an arbitrary network topology, as long as the topology maintains a si ...
... is comprised of two Ethernet switches and two Network Interface Cards (NICs) per node. For the simplicity of presentation, we assume that all the nodes are directly connected to the two switches. However, our algorithm can work in an arbitrary network topology, as long as the topology maintains a si ...
What is Cloud Computing - Victoria University of Wellington
... Efficiency of a Gossip Protocol • This is an approximate calculation – Assume, in the first round of gossiping, a node gets an information that it needs to share with others – So, the node picks another node and after the second round of gossiping two nodes know for the information – In the third ro ...
... Efficiency of a Gossip Protocol • This is an approximate calculation – Assume, in the first round of gossiping, a node gets an information that it needs to share with others – So, the node picks another node and after the second round of gossiping two nodes know for the information – In the third ro ...
![[slides] Introduction to operating systems](http://s1.studyres.com/store/data/008424874_1-c77938149d61eec399f6c5c58edfa526-300x300.png)
Cluster Administration Tool
... Linux Cluster System widely used for high performance computing It emphasizes on the use of commodity hardware and open source software It delivers a very high-performance at the extremely low cost System management is a challenging task ...
... Linux Cluster System widely used for high performance computing It emphasizes on the use of commodity hardware and open source software It delivers a very high-performance at the extremely low cost System management is a challenging task ...
PowerPoint - cse.sc.edu
... contributions to Linux come from proprietary licensed code – AIX is based on System V r4, now owned by SCO ...
... contributions to Linux come from proprietary licensed code – AIX is based on System V r4, now owned by SCO ...
Routing
... incident on it (this is the link state) to all its neighbors. The mechanism for dissemination is flooding. This helps each node eventually compute the topology of the network, and independently determine the shortest path to any destination node using some standard graph algorithm like Dijkstra’s. ...
... incident on it (this is the link state) to all its neighbors. The mechanism for dissemination is flooding. This helps each node eventually compute the topology of the network, and independently determine the shortest path to any destination node using some standard graph algorithm like Dijkstra’s. ...
System Virtualization 1
... • BUT some instructions behave differently (without trapping) in privileged and nonpriv mode ...
... • BUT some instructions behave differently (without trapping) in privileged and nonpriv mode ...
Securing the “Cool Bits” in CA SYSVIEW® using SAF
... • IODF – Configuring the hardware for Redundancy – THE central point of control for the whole of a System z installation – Set of logical configuration statements used to define a network of hardware resources • includes things like which operating system configurations can be used, what DASD can be ...
... • IODF – Configuring the hardware for Redundancy – THE central point of control for the whole of a System z installation – Set of logical configuration statements used to define a network of hardware resources • includes things like which operating system configurations can be used, what DASD can be ...
Cluster - spinlab
... parts. This new concept of parallel computing has become more about using readily available resources to perform the same operations at a reduced cost. The introduction of Local Area Network (LAN) switches has resulted in the ability to create scalable massively parallel computing systems with high ...
... parts. This new concept of parallel computing has become more about using readily available resources to perform the same operations at a reduced cost. The introduction of Local Area Network (LAN) switches has resulted in the ability to create scalable massively parallel computing systems with high ...
Cloud Computing and Fog Computing
... management and composition as well as for implementing applications and services that exploit the things or the data produced by them. On the other hand, Cloud can benefit from IoT by extending its scope to deal with real world things in a more distributed and dynamic manner, and for delivering new ...
... management and composition as well as for implementing applications and services that exploit the things or the data produced by them. On the other hand, Cloud can benefit from IoT by extending its scope to deal with real world things in a more distributed and dynamic manner, and for delivering new ...
A1_Presentation4_Interprocess_Comparisons_Revised
... Implementation of shared memory is based entirely on the concept of file mapping. As in the UNIX implementation, which uses an identifier, Windows uses a handle identifier to identify the memory that is mapped into the process at the requested address. ...
... Implementation of shared memory is based entirely on the concept of file mapping. As in the UNIX implementation, which uses an identifier, Windows uses a handle identifier to identify the memory that is mapped into the process at the requested address. ...
Toward Highly Available, Self-Healing, Adaptable, Grid
... – Parallel computers are seen as being user unfriendly – Parallel processing is not used on daily basis – Ordinary users have to be involved in programming activities that are of the operating system nature – Ordinary engineers, managers, etc do not have, and should not have, specialized knowledge n ...
... – Parallel computers are seen as being user unfriendly – Parallel processing is not used on daily basis – Ordinary users have to be involved in programming activities that are of the operating system nature – Ordinary engineers, managers, etc do not have, and should not have, specialized knowledge n ...
Operating System Support
... – One OS managing resources on multiple machines – Examples: Cluster computer systems Amoeba, V system, Sprite, Globe OS ...
... – One OS managing resources on multiple machines – Examples: Cluster computer systems Amoeba, V system, Sprite, Globe OS ...
Week 12 Virtualization
... server, some e-commerce servers, and others. • These all run on different computers in the same equipment rack, all connected by a high-speed network, in other words, a multicomputer. ...
... server, some e-commerce servers, and others. • These all run on different computers in the same equipment rack, all connected by a high-speed network, in other words, a multicomputer. ...
A scalable file distribution and operating system installation toolkit
... In addition to algorithms described in the previous section, a multicast algorithm and a chain algorithm have been designed for file broadcasting. The chain implementation is the same as for operating system cloning. Our multicast algorithm adds a reliability layer on top of IP multicast. Two techni ...
... In addition to algorithms described in the previous section, a multicast algorithm and a chain algorithm have been designed for file broadcasting. The chain implementation is the same as for operating system cloning. Our multicast algorithm adds a reliability layer on top of IP multicast. Two techni ...
Distributed Computing
... Protocol, which provides the functionalities for allowing data to be transmitted between any two hosts on the Internet. • The Transport layer delivers the transmitted data to a specific process running on an Internet host. • The Application layer supports the programming interface used for building ...
... Protocol, which provides the functionalities for allowing data to be transmitted between any two hosts on the Internet. • The Transport layer delivers the transmitted data to a specific process running on an Internet host. • The Application layer supports the programming interface used for building ...
ch1 - CE Sharif
... I/O devices and the CPU can execute concurrently Each device controller is in charge of a particular ...
... I/O devices and the CPU can execute concurrently Each device controller is in charge of a particular ...
Chapter 1: Introduction
... The basic unit of computer storage is the bit. A bit can contain one of two values, 0 and 1. All other storage in a computer is based on collections of bits. Given enough bits, it is amazing how many things a computer can represent: numbers, letters, images, movies, sounds, documents, and programs, ...
... The basic unit of computer storage is the bit. A bit can contain one of two values, 0 and 1. All other storage in a computer is based on collections of bits. Given enough bits, it is amazing how many things a computer can represent: numbers, letters, images, movies, sounds, documents, and programs, ...
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.