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Softwaretechnik-Trends 35(3) - 2015

https://dl.gi.de/handle/20.500.12116/40765
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Auflistung Softwaretechnik-Trends 35(3) - 2015 nach Erscheinungsdatum

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  • Zeitschriftenartikel
    Adaptive Application Performance Management for Big Data Stream Processing
    (Softwaretechnik-Trends Band 35, Heft 3, 2015) Eichelberger, Holger; Qin, Cui; Schmid, Klaus; Niederée, Claudia
    Big data applications with their high-volume and dynamically changing data streams impose new challenges to application performance management. Efficient and effective solutions must balance performance versus result precision and cope with dramatic changes in real-time load and needs without overprovisioning resources. Moreover, a developer should not be burdened too much with addressing performance management issues, so he can focus on the functional perspective of the system For addressing these challenges, we present a novel comprehensive approach, which combines software configuration, model-based development, application performance management and runtime adaptation.
  • Zeitschriftenartikel
  • Zeitschriftenartikel
    Improving IaaS Cloud Analyses by Black-Box Resource Demand Modeling
    (Softwaretechnik-Trends Band 35, Heft 3, 2015) Groenda, Henning; Stier, Christian
    In Infrastructure as a Service (IaaS) Cloud scenarios, data center operators require specifications of Virtual Machine (VM) behavior for data center middle- and long-term planning and optimization. The planning is usually supported by simulations. While users can leverage white-box application knowledge, data center operators have to rely on metrics at the level of resource demands provided by virtualization and cloud middleware platforms. Existing simulations for data center planning do not combine both viewpoints and either require white-box knowledge or focus on short-term predictions using statistical estimators. Our approach allows modeling varying resource demand of black-box VMs based on the Descartes Load Intensity Model (DLIM). The black-box VM models are integrated in the SimuLizar performance simulator complementing the existing grey- and white-box models in order to improve reasoning on (de-) consolidation decisions.
  • Zeitschriftenartikel
    Symposium on Software Performance (SSP) 2015
    (Softwaretechnik-Trends Band 35, Heft 3, 2015) Becker, Steffen; Brunnert, Andreas; Hasselbring, Wilhelm; van Hoorn, André; Kounev, Samuel; Krcmar, Helmut; Reussner, Ralf
  • Zeitschriftenartikel
    Analyzing Cost-Efficiency of Cloud Computing Applications with SimuLizar
    (Softwaretechnik-Trends Band 35, Heft 3, 2015) Lehrig, V; Eikerling, Hendrik
    In cloud computing, software applications are potentially able to use only the computing resources that are minimally needed for performant operation. Because cloud providers provision such resources on a pay-per-use basis, software architects are interested in analyzing the operational costs that accrue for such applications, allowing architects to optimize for cost-efficiency. Current analysis approaches like Palladio focus on traditional performance metrics but lack support for cost-efficiency metrics. Therefore, software architects have to inaccurately estimate operational costs of their applications, potentially leading to economically unusable applications. To tackle this problem, we integrated cost metrics into SimuLizar, a Palladio extension for analyzing cloud computing applications. Our integration allows architects to attach prices to computing resources used by software applications. In a proof-of-concept evaluation with a simple book shop, we show that our integration allows architects to analyze costs with high accuracy.
  • Zeitschriftenartikel
    Nutzung von Architekturinformationen zur Beherrschung der Komplexität im Software-Integrationstest
    (Softwaretechnik-Trends Band 36, Heft 3, 2015) Elberzhager, Frank; Naab, Matthias
    Architekturdefinition und Integrationstesten sind wesentliche Aktivitäten in der Softwareentwicklung. Häufig wird empfohlen, Architekturinformationen als Grundlage für den Integrationstest zu nutzen, wobei oftmals jedoch keine Unterstützung bei der konkreten Umsetzung bereitgestellt wird. Wir wollen in diesem Artikel Konzepte für die stärkere Nutzung von konkretem Architekturwissen im Integrationstest vorstellen und diskutieren, wie der Integrationstest profitieren kann. Damit soll letztlich die zugrundeliegende Software verbessert werden, sowie die oftmals hohe Komplexität bei der Erstellung und Qualitätssicherung von Software besser handhabbar sein.
  • Zeitschriftenartikel
    Konferenzbericht zur MetriKon 2015
    (Softwaretechnik-Trends Band 35, Heft 3, 2015) Dumke, Reiner
  • Zeitschriftenartikel
    CfP: Workshop Entwicklung zuverlässiger Software-Systeme 9. Juni 2016, Regensburg
    (Softwaretechnik-Trends Band 35, Heft 3, 2015) Keller, Hubert B.; Mottok, Jürgen; Plödereder, Erhard
  • Zeitschriftenartikel
    Software Performance Anti-Patterns Observed and Resolved in Kieker
    (Softwaretechnik-Trends Band 35, Heft 3, 2015) Wulf, Christian; Hasselbring, Wilhelm
    Software performance anti-patterns describe bad-practice solutions for particular problems. They help in sensitizing software engineering to such situations. In this paper, we focus on anti-patterns of monitoring and dynamic analysis frameworks, such as Kieker. These frameworks typically have high requirements on a low monitoring overhead and a high-throughput analysis performance. We describe three observed anti-patterns which influenced previous versions of Kieker with a high impact on the performance. Moreover, we present our solution for each of the anti-patterns.
  • Zeitschriftenartikel
    Konferenzbericht zur IWSM/MENSURA 2015
    (Softwaretechnik-Trends Band 35, Heft 3, 2015) Dumke, Reiner