Realistic load testing of Web applications

Draheim, Dirk; Grundy, John; Hosking, John; Lutteroth, Christof; Weber, Gerald

doi:10.1109/csmr.2006.43

Cited by 67 publications

(65 citation statements)

References 24 publications

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“…There are known approaches to dynamically generate varying workload content, for example, automatic generation of transaction sequences based on form-oriented models [6]. Here we present an approach for dynamically varying load levels during the test in order to achieve faster test goal achievement.…”

Section: Self-adjusting Load Scenariosmentioning

confidence: 99%

Self-Directed Performance Testing

Sukhorukov¹

2010

Scientific Journal of Riga Technical University. Computer Sciences

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-Performance testing of multi-user software systems is typically performed by emulating activities of multiple users working with the system simultaneously. These virtual users collect performance measures like response time and correctness while loading the system during the test. During a typical load scenario number of simultaneous virtual users gradually increases from one to some intended maximum, allowing to find out statistical relation between number of simultaneous users and performance measures.However having fixed load scenario has several drawbacks. Usually the test has to be repeated iteratively with adjusted load scenarios, taking into account results acquired from previous test iterations. As load scenarios have to be adjusted manually and repetitions of the test may take considerable time, this approach seems to be ineffective. This paper presents an alternative approach, where load scenario is adjusted automatically during the test, taking into account performance measures already gathered in the same test. Drawbacks of fixed load scenarios are analysed and methods of eliminating them by automatic adjustment are described. A case study showing implementation of the method and results obtained by applying it to performance testing of a real system is provided.

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Section: Self-adjusting Load Scenariosmentioning

confidence: 99%

Self-Directed Performance Testing

Sukhorukov¹

2010

Scientific Journal of Riga Technical University. Computer Sciences

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“…One of them, MaramaMTE [10,13], is shown during use in Figure 1. Figure 1 (a) is a structural diagram showing client, server, database and other key structural abstractions.…”

Section: Motivationmentioning

confidence: 99%

Supporting Generic Sketching-Based Input of Diagrams in a Domain-Specific Visual Language Meta-Tool

Grundy

Hosking

2007

29th International Conference on Software Engineering (ICSE'07)

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“…The predictor provided by Teamquest [5] provides options to substitute or improve server capacity to improve performance at higher loads. While think times are traditionally set as constants during tests, these have been modeled with realistic user wait time stochastic values in [15].…”

Section: Related Workmentioning

confidence: 99%

Performance Modeling of Multi-tiered Web Applications with Varying Service Demands

Kattepur

Nambiar

2016

IJNC

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Multi-tiered transactional web applications are frequently used in IT enterprise based systems. Due to their inherent distributed nature, pre-deployment testing for high-availability and varying concurrency are important for post-deployment performance. Accurate performance modeling of such applications can help estimate values for future deployment variations as well as validate experimental results. In order to theoretically model performance of multi-tiered applications, we use queuing networks and Mean Value Analysis (MVA) models. While MVA has been shown to work well with closed queuing networks, there are particular limitations in cases where the service demands vary with concurrency. This variation of service demands for various resources (CPU, Disk, Network) is demonstrated through multiple experiments. This is further contrived by the use of multi-server queues in multi-core CPUs, that are not traditionally captured in MVA. We compare performance of a multi-server MVA model alongside actual performance testing measurements and demonstrate this deviation. Using spline interpolation of collected service demands, we show that a modified version of the MVA algorithm (called MVASD) that accepts an array of service demands, can provide superior estimates of maximum throughput and response time. Results are demonstrated over multi-tier vehicle insurance registration and e-commerce web applications. The mean deviations of predicted throughput and response time are shown to be less the 3% and 9%, respectively. Additionally, we analyze the effect of spline interpolation of service demands as a function of throughput on the prediction results. Using Chebyshev Nodes, the tradeoff between the number of test points and the spline interpolation/prediction accuracy is also studied.

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Realistic load testing of Web applications

Abstract: We

Cited by 67 publications

References 24 publications

Self-Directed Performance Testing

Self-Directed Performance Testing

Supporting Generic Sketching-Based Input of Diagrams in a Domain-Specific Visual Language Meta-Tool

Performance Modeling of Multi-tiered Web Applications with Varying Service Demands

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