Workshop on Software and Performance最新文献_第4页

The challenges of open-world software 开放世界软件的挑战

Workshop on Software and Performance Pub Date : 2007-02-05 DOI: 10.1145/1216993.1216995

C. Ghezzi

{"title":"The challenges of open-world software","authors":"C. Ghezzi","doi":"10.1145/1216993.1216995","DOIUrl":"https://doi.org/10.1145/1216993.1216995","url":null,"abstract":"Software has been evolving from pre-defined, monolithic, centralized architectures to decentralized, distributed, dynamically composed federations of components whose goal is to provide useful services. Software processes have been evolving along similar lines, from pre-specified sequential work- flows to decentralized and multi-organization endeavors. The organizations to which software solutions are targeted have also been evolving from highly structured to agile and networked enterprises. All this is affecting the way software is engineered (i.e., conceived, architected, and produced).Software applications increasingly live in an open world: They are embedded in dynamically evolvable environments and must adapt to continuous and even unpredictable change. Accordingly, software architectures need to evolve dynamically and must support reconfiguration and self-organizing features to respond to change requirements. Programming languages and their underlying support infrastructure, in turn, must provide specific features to support this level of dynamism. The traditional approaches followed to ensure software quality, which focus exclusively on pre-runtime validation, are inadequate in this new context. Continuous validation becomes necessary: validation must extend to after the system is deployed and running.The talk surveys the main architectural styles that support dynamic software compositions, the language and infrastructure requirements, and provides a view of the validation process for dynamically evolvable software systems.","PeriodicalId":235512,"journal":{"name":"Workshop on Software and Performance","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128773213","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

Performance analysis of security aspects in UML models UML模型中安全方面的性能分析

Workshop on Software and Performance Pub Date : 2007-02-05 DOI: 10.1145/1216993.1217010

D. Petriu, C. Woodside, D. Petriu, Jing Xu, Toqeer Israr, Geri Georg, R. France, J. Bieman, S. Houmb, J. Jürjens

{"title":"Performance analysis of security aspects in UML models","authors":"D. Petriu, C. Woodside, D. Petriu, Jing Xu, Toqeer Israr, Geri Georg, R. France, J. Bieman, S. Houmb, J. Jürjens","doi":"10.1145/1216993.1217010","DOIUrl":"https://doi.org/10.1145/1216993.1217010","url":null,"abstract":"The focus of the paper is on the analysis of performance effects of different security solutions modeled as aspects in UML. Aspect oriented modeling (AOM) allows software designers to isolate and separately address solutions for crosscutting concerns, which are defined as distinct UML aspect models, then are composed with the primary UML model of the system under development. For performance analysis we use techniques developed previously in the PUMA project, which take as input UML models annotated with the standard UML Profile for Schedulability, Performance and Time (SPT), and transform them first into Core Scenario Model (CSM) and then into different performance models. The contribution of this paper is in performing the composition of the aspects with the primary model at the CSM level. The input is represented by the primary model and a number of aspect models in UML+SPT, which are processed as follows: a) converted separately to CSM; b) composed into a single CSM model; c) transformed into a Layered Queueing Networks (LQN) model and d) analyzed. The proposed approach is illustrated with a case study based on two standards, TPC-W and SSL.","PeriodicalId":235512,"journal":{"name":"Workshop on Software and Performance","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126899430","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 39

Deriving distribution of thread service time in layered queueing networks 导出分层排队网络中线程服务时间的分布

Workshop on Software and Performance Pub Date : 2007-02-05 DOI: 10.1145/1216993.1217007

T. Omari, Salem Derisavi, G. Franks

引用次数: 5

Model-Based performance prediction with the palladio component model 基于模型的palladio分量模型性能预测

Workshop on Software and Performance Pub Date : 2007-02-05 DOI: 10.1145/1216993.1217006

Steffen Becker, H. Koziolek, Ralf H. Reussner

{"title":"Model-Based performance prediction with the palladio component model","authors":"Steffen Becker, H. Koziolek, Ralf H. Reussner","doi":"10.1145/1216993.1217006","DOIUrl":"https://doi.org/10.1145/1216993.1217006","url":null,"abstract":"One aim of component-based software engineering (CBSE) is to enable the prediction of extra-functional properties, such as performance and reliability, utilising a well-defined composition theory. Nowadays, such theories and their accompanying prediction methods are still in a maturation stage. Several factors influencing extra-functional properties need additional research to be understood. A special problem in CBSE stems from its specific development process: Software components should be specified and implemented independent from their later context to enable reuse. Thus, extra-functional properties of components need to be specified in a parametric way to take different influence factors like the hardware platform or the usage profile into account. In our approach, we use the Palladio Component Model (PCM) to specify component-based software architectures in a parametric way. This model offers direct support of the CBSE development process by dividing the model creation among the developer roles. In this paper, we present our model and a simulation tool based on it, which is capable of making performance predictions. Within a case study, we show that the resulting prediction accuracy can be sufficient to support the evaluation of architectural design decisions.","PeriodicalId":235512,"journal":{"name":"Workshop on Software and Performance","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133178673","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 225

Engineering grid applications and middleware for high performance 工程网格应用程序和中间件的高性能

Workshop on Software and Performance Pub Date : 2007-02-05 DOI: 10.1145/1216993.1217019

U. Farooq, S. Majumdar, E. Parsons

{"title":"Engineering grid applications and middleware for high performance","authors":"U. Farooq, S. Majumdar, E. Parsons","doi":"10.1145/1216993.1217019","DOIUrl":"https://doi.org/10.1145/1216993.1217019","url":null,"abstract":"Meeting QoS objectives of applications while maintaining high system utilization is a challenging task in multi-institutional Grids. In this paper, we effectively engineer Grid applications and resource management middleware for achieving user satisfaction and high resource utilizations. The paper presents a complete framework based on advance reservations (ARs) for resource management in Grids. The framework is capable of providing QoS guarantees to applications while maintaining high resource utilizations. The paper focuses on the scheduling component of the framework and presents a novel heuristic-based algorithm, Grid Scheduling with Deadlines (GSD), for an NP-Complete problem of scheduling ARs with laxities on a shared resource. GSD can be configured with the help of pluggable strategies to adapt to various workload conditions and needs of the system. The paper studies with the aid of an extensive set of experiments the effect of various workload and system parameters on system performance. It is not always possible to accurately predict the runtimes of the jobs. The paper discusses the impact of error in user-estimated runtimes on system performance and investigates strategies to avoid substandard performance resulting from such inaccuracies. Experimental results demonstrate the efficacy of our methodology.","PeriodicalId":235512,"journal":{"name":"Workshop on Software and Performance","volume":"149 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115545925","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7

A model-driven approach to performability analysis of dynamically reconfigurable component-based systems 动态可重构组件系统的可执行性分析的模型驱动方法

Workshop on Software and Performance Pub Date : 2007-02-05 DOI: 10.1145/1216993.1217011

V. Grassi, R. Mirandola, A. Sabetta

{"title":"A model-driven approach to performability analysis of dynamically reconfigurable component-based systems","authors":"V. Grassi, R. Mirandola, A. Sabetta","doi":"10.1145/1216993.1217011","DOIUrl":"https://doi.org/10.1145/1216993.1217011","url":null,"abstract":"Dynamic reconfiguration techniques appear promising to build component-based (C-B) systems for application domains that have strong adaptability requirements, like the mobile and the service-oriented computing domains. However, introducing dynamic reconfiguration features into a C-B application makes even more challenging the design and verification of functional and non functional requirements. Our goal is to support the model-based analysis of the effectiveness of reconfigurable C-B applications, with a focus on the assessment of the non-functional performance and reliability attributes. As a first step towards this end, we address the issue of selecting suitable analysis models for reconfigurable systems, suggesting to this end the use of joint performance and reliability (performability) models. Furthermore, we propose a model-driven approach to automatically transform a design model into an analysis model. For this purpose, we build on the existence of intermediate languages that have been proposed to facilitate this transformation and we extend one of them, to capture the core features (from a performance/reliability viewpoint) of a dynamically reconfigurable C-B system. Finally, we illustrate by a simple application example the main steps of the proposed approach.","PeriodicalId":235512,"journal":{"name":"Workshop on Software and Performance","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121573606","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 41

Performance engineering for EA systems in next generation data centresPerformance engineering for EA systems in next generation data centres 下一代数据中心EA系统的性能工程下一代数据中心EA系统的性能工程

Workshop on Software and Performance Pub Date : 2007-02-05 DOI: 10.1145/1216993.1217004

J. Rolia, L. Cherkasova, R. Friedrich

{"title":"Performance engineering for EA systems in next generation data centresPerformance engineering for EA systems in next generation data centres","authors":"J. Rolia, L. Cherkasova, R. Friedrich","doi":"10.1145/1216993.1217004","DOIUrl":"https://doi.org/10.1145/1216993.1217004","url":null,"abstract":"Software Performance Engineering (SPE) methods have been in use for over two decades as an approach to manage the risks of developing systems that fail to satisfy their performance requirements. In general, SPE advocates the use of performance oriented design principles to guide design decisions and predictive performance models to assess the performance impact of design alternatives. SPE methods have been used successfully to identify and overcome system design blunders early in the Information Technology (IT) project lifecycle before the blunders are built into a system and become expensive and time consuming to correct. While the methods have been used successfully in some IT project domains, they are not widely applied in the important domain of Enterprise Application (EA) systems. This experience paper considers the reasons for this and explores the role of SPE as new EA platform and data centre technologies become available.We find that many risks traditionally addressed by SPE have been mitigated by the nature of existing EA platforms, the nature of today's IT projects for EA, and an attention to business process modeling. Furthermore, the design and implementation of future EA systems will see some performance risks reduced even further by new EA and IT system management platforms for Next Generation Data Centres. However, we expect that the nature of EA systems to be built is becoming more complex. As a result some familiar performance risks will re-emerge along with new runtime risks. We believe that SPE methods can help to mitigate such risks and describe research challenges that must be addressed to make this a reality.","PeriodicalId":235512,"journal":{"name":"Workshop on Software and Performance","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122795020","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Performance analysis of mobile agents tracking 移动代理跟踪的性能分析

Workshop on Software and Performance Pub Date : 2007-02-05 DOI: 10.1145/1216993.1217024

Elena Gómez-Martínez, S. Ilarri, J. Merseguer

引用次数: 10

Using performance signatures and software rejuvenation for worm mitigation in tactical MANETs 使用性能签名和软件再生技术缓解战术manet中的蠕虫

Workshop on Software and Performance Pub Date : 2007-02-05 DOI: 10.1145/1216993.1217023

Alberto Avritzer, R. Cole, E. Weyuker

引用次数: 13

Hybrid performance modeling approach for network intensive distributed software 网络密集型分布式软件的混合性能建模方法

Workshop on Software and Performance Pub Date : 2007-02-05 DOI: 10.1145/1216993.1217026

Tom Verdickt, B. Dhoedt, F. Turck, P. Demeester

引用次数: 18