This article is presented by:
Rex di Bona
Basser Department of Computer Science
University of Sydney

Data Movement in the
Grasshopper Operating System



INTRODUCTION
Computer environments have changed dramatically in recent years, from the large centralised mainframe to the networked collections of workstation style machines. The power of workstations is increasing, but the common paradigms used to manage data on these workstations are still fundame ....etc

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For ten years researchers have been attempting to construct programming language systems that support orthogonal persistence above conventional operating systems. This approach has proven to be poor; researchers invariably construct a complete abstract machine above the operating system with resulting loss of efficiency. This paper describes a new approach, the construction of an operating system designed to support orthogonal persistence.

The operating system, Grasshopper, relies upon three powerful and orthogonal abstractions: containers, ....etc

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send the purpose and scope of our project. ....etc

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Please send me full report of GRASSHOPPER OPERATING SYSTEM seminar topic..... ....etc

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For ten years researchers have been attempting to construct programming language systems that support orthogonal persistence above conventional operating systems. This approach has proven to be poor; researchers invariably construct a complete abstract machine above the operating system with resulting loss of efficiency. This paper describes a new approach, the construction of an operating system designed to support orthogonal persistence. The operating system, Grasshopper, relies upon three powerful and orthogonal abstractions: containers, loc ....etc

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Abstract
This paper describes Grasshopper, an operating system designed to provide generic mechanisms capable of being tailored to support a wide range of persistence paradigms. A constraint placed on this design is that the system must be implementable on conventional architectures which support paged virtual memory. In this paper the basic system abstractions relating to addressing environments, processes, and protection are described. It is shown that these provide explicit support for distributed persistent objects and processes, stabilit ....etc

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A New TCP For Persistent Packet Reordering


Abstract”Most standard implementations of TCP perform poorly when packets are reordered. In this paper, we propose new version of TCP that maintains high throughput when reordering occurs and yet, when packet reordering does not occur, is friendly to other versions of TCP. The proposed TCP variant, or TCP-PR, does not rely on duplicate acknowledgments to detect packet loss. Instead, timers are maintained to keep track of how long ago a packet was transmitted. In case the ....etc

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i want graahopper ppt ....etc

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Can any say me how to do packet reordering in tcp..Actually i was doing final year ieee projects..My project title is A New Tcp For Persistent Packet Reordering..

In this i need to show to-be-sent list and to-be-ack list..And also packet reordering..Need to use timer also,bec the data should be send in particular time limit,if the time limit get exceed it should return back from congestion window and be placed in to-be-sent list..

Because the packet/data from source will be sent in to-be-sent list then from their, through the congestion w ....etc

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provide abstract on grasshopper operating system ....etc

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