منابع مشابه
Performance Modelling of Optimistic Fair Exchange
In this paper we explore the overhead introduced by secure functions in considering a case study in non-repudiation. We present a model of an optimistic fair exchange protocol specified using the Markovian process algebra PEPA and present results derived using a fluid approximation and stochastic simulation. This system poses an interesting performance problem in that the degree overhead of the...
متن کاملOptimistic Network Computing and its Performance Control
Optimistic execution is a powerful technique that can enable an application to make more eecient use of resources that are distributed across a computer network. Such a mechanism may be used to provide automatic parallelization of a sequential object-oriented program, allowing it to be executed concurrently on a network of processors. Optimistic execution can be of particular beneet to distribu...
متن کاملPerformance Benefits of Optimistic Programming: A Measure of HOPE
Optimism is a powerful technique for avoiding latency by increasing concurrency. By optimistically assuming the results of some computation, other computations can be executed in parallel, even when they depend on the assumed result. Optimistic techniques can be particularly beneecial to parallel and distributed systems because of the critical impact of inter-node communications latency. This p...
متن کاملAPART+: Boosting APART performance via optimistic pipelining of output events
APART (A Posteriori Active ReplicaTion) is a recently proposed active replication protocol specifically tailored for multi-tier data acquisition systems. It ensures consistency of middle-tier sink replicas by means of an a-posteriori synchronization phase based on reconciliation, which is activated only in case replicas react to an input message from the sensors by generating an output event de...
متن کاملPerformance of Distributed Optimistic Concurrency Control in Real-Time Databases
Concurrency control is one of the main issues in the studies of real-time database systems. In this paper different distributed concurrency control methods are studied and evaluated in real-time system environment. Because optimistic concurrency control is promising candidate for real-time database systems, distributed optimistic concurrency control methods are discussed more detailed way. We p...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: ACM SIGMETRICS Performance Evaluation Review
سال: 1989
ISSN: 0163-5999
DOI: 10.1145/75372.75377