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One of the important targets in new generation data centers is minimizing the cost through efficient use of available resources. Virtualization is a new technology that provides an opportunity for extension of independent virtual resources based on available physical systems. This paper evaluates performance of virtualized versus non-virtualized servers in data center applications. We have presented...
This work presents an empirical analysis aiming at investigating what kind of relationship exists between software aging and several static features of the software. While past studies on software aging focused on predicting the aging effects by monitoring and analytically modeling resource consumption at runtime, this study intends to explore if the static features of the software, as derived by...
For designing a wireless network, field test is mostly preferred for researchers to test and evaluate the system performance. However, it is expensive for field constructions and thus it is not affordable for most researchers. Software simulation is another option. However, the results by simulation may be undesirably biased away the true. This paper proposes a new method to trade off between resource...
With the process of non-functional properties research on real-time systems, resource estimation and analysis of realtime systems become a hotspot. Process Algebra is a formal method fit for analyzing the functional properties of real-time systems, but it can not analyze the resource properties. Resource Communicating Sequential Process (RCSP) proposed in this paper can handle it efficiently by extending...
Quantum-behaved Particle Swarm Optimization (QPSO) algorithm is the algorithm proposed by our group to improve traditional PSOs. Comparing with traditional PSOs, the QPSO has better global-convergence and fewer parameters. Both PSO and QPSO were generally considered to have high requirement for the computing platform; hence, it is thought impractical to employ them into resource-constrained embedded...
Complex real-time embedded systems should be compositional and deterministic in the resource, time, and value domains. Determinism eases the engineering of correct systems and compositionality simplifies the assembly of complex systems out of smaller modules. This paper describes the PEACOD framework that is developed to support deterministic behavior for resource consumption, value passing, and timing...
The engineering and design of modern products and systems with high functionality for instance production systems for steel, paper or plastic, but also of machine tools, mostly necessitates adaptations to customer specific requirements. Especially for material processing machinery, the enormous throughput and resource consumption on the one hand and the relatively low profit margin on the other hand...
A new digital control system using Dynamic Reconfigurable Processor (DRP) was proposed for an autonomous decentralized UPS system. Recently, DRP was developed and released to the consumer market. DRP has the dynamic reconfigurable features to change the plural calculation circuit configuration in one clock duration. So the resource cost and the power cost of the processor can be decreased without...
This paper introduces a novel method and a prototype tool for the resource monitoring of OSGi-based software components. The OSGi Service Platform enables the cooperation of multiple Java based components within a single Java Virtual Machine (JVM), introducing challenges for resource monitoring as the JVM conceals the resource consumption information of separate OSGi components. When addressing this...
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