Impact of leaky bucket regulation on the performance of combined I/O buffering in atm switches

“…CPNs represent powerful means for modeling and prototyping complex, distributed, and parallel systems (Jensen 1992(Jensen , 1994. CPNs were used successfully for modeling various systems such as VLSI chip design (Shapiro 1991), communication protocols (Mnaouer et al, 1999;Mnaouer et al, 2002;Morera and Gonzalez, 1999), and algorithm analysis (Jorgensen and Kristensen, 1999).…”

Section: Introductionmentioning

confidence: 99%

Performance Evaluation of Database Systems Using Colored Petri Nets

Mnaouer

Day

Al-Towaiq

et al. 2003

SQU Journal for Science

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We propose Colored Petri Net (CPN) models for replicated and centralized database systems and conduct a comparative study of their performance. The designed CPN models capture the dynamics of the studied database systems and estimate their expected performance with an appropriate level of abstraction. A number of simulation experiments were performed under various load conditions of varying parameters such as server speed, network speed, and read/write ratio. The simulation results show that under similar operation conditions, replicated systems exhibit higher performance than centralized systems in terms of query response time and system saturation levels. However, centralized systems become more competitive when their network and server speeds are much higher than those of the replicated systems.

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“…CPNs were used successfully for modeling various systems such as communication protocols [4], [5], and algorithm analysis [6], etc.…”

Section: Introductionmentioning

confidence: 99%

Colored Petri nets based modeling and simulation of mixed workload interaction in a nondedicated cluster

Mnaouer

Al-Riyami

Proceedings. Seventh International Conference on High Performance Computing and Grid in Asia Pacific Region, 2004.

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This paper presents a Colored Petri Nets based modeling and performance evaluation of mixed (interactive and parallel) workloads in a nondedicated cluster environment.To control the interactions between the two types of workloads, we propose to constrain the scheduling of local interactive processes by a measure of the maximum response time expected by the workstation (WS) user. The measure is assumed obtained through empirical studies. We propose a scheduling scheme that within the max-response time cycle computes time quanta to satisfy both local interactive processes present in the system and the parallel task process. We proposed a Colored Petri Net (CPN) model of the scheduling scheme and simulations have shown the effectiveness of the proposed method in allowing the parallel task to ensure a minimum speedup even in heavy loaded situations and to maximize the speedup adaptively depending on the load conditions.

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Impact of leaky bucket regulation on the performance of combined I/O buffering in atm switches

Cited by 3 publications

References 7 publications

Effective scheduling of local interactive processes and parallel processes in a non-dedicated cluster environment

Effective scheduling of local interactive processes and parallel processes in a non-dedicated cluster environment

Performance Evaluation of Database Systems Using Colored Petri Nets

Colored Petri nets based modeling and simulation of mixed workload interaction in a nondedicated cluster

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