Results 1 - 10
of
10
Architecture-based software reliability analysis: Overview and limitations
- IEEE Transactions on Dependable and Secure Computing
"... Abstract—With the growing size and complexity of software applications, research in the area of architecture-based software reliability analysis has gained prominence. The purpose of this paper is to provide an overview of the existing research in this area, critically examine its limitations, and s ..."
Abstract
-
Cited by 29 (0 self)
- Add to MetaCart
(Show Context)
Abstract—With the growing size and complexity of software applications, research in the area of architecture-based software reliability analysis has gained prominence. The purpose of this paper is to provide an overview of the existing research in this area, critically examine its limitations, and suggest ways to address the identified limitations. Index Terms—Software reliability, software architecture. Ç 1
Performance analysis of the reactor pattern in network services
- In Proceedings of the 5th International Workshop on Performance Modeling, Evaluation and Optimization of Parallel and Distributed Systems (PMEO-PDS 2006), Rhodes Island
, 2006
"... ..."
(Show Context)
Response time analysis of middleware event demultiplexing pattern for network services
- In Proc. of IEEE Globecom, Advances for Networks and Internet
, 2005
"... Abstract — Society is becoming increasingly reliant on the services provided by distributed, performance sensitive software systems. These systems demand multiple simultaneous quality of service (QoS) properties. A key enabler in recent successes in the development of such systems has been middlewar ..."
Abstract
-
Cited by 3 (3 self)
- Add to MetaCart
(Show Context)
Abstract — Society is becoming increasingly reliant on the services provided by distributed, performance sensitive software systems. These systems demand multiple simultaneous quality of service (QoS) properties. A key enabler in recent successes in the development of such systems has been middleware, which comprises reusable building blocks. Typically, a large number of configuration options are available for each building block when composing a system end-to-end. The choice of the building blocks and their configuration options have an impact on the performance of the services provided by the systems. Currently, the effect of these choices can be determined only very late in the lifecycle, which can be detrimental to system development costs and schedules. In order to enable the right design choices, a systematic methodology to analyze the performance of these systems at design time is necessary. Such a methodology may consist of models to analyze the performance of individual building blocks comprising the middleware and the composition of these building blocks. As a first step towards building this methodology, this paper introduces a model of the Reactor pattern, which provides important synchronous demultiplexing and dispatching capabilities to network services and applications. The model is based on the Stochastic Reward Net (SRN) modeling paradigm. We illustrate how the model could be used to obtain the response time of a Virtual Private Network (VPN) service provided by a Virtual Router (VR). I.
Model-driven Generative Techniques for Scalable Performabality Analysis of Distributed Systems ∗
"... The ever increasing societal demand for the timely availability of newer and feature-rich but highly dependable network-centric applications imposes the need for these applications to be constructed by the composition, assembly and deployment of off-the-shelf infrastructure and domain-specific servi ..."
Abstract
-
Cited by 3 (0 self)
- Add to MetaCart
(Show Context)
The ever increasing societal demand for the timely availability of newer and feature-rich but highly dependable network-centric applications imposes the need for these applications to be constructed by the composition, assembly and deployment of off-the-shelf infrastructure and domain-specific services building blocks. Service Oriented Architecture (SOA) is an emerging paradigm to build applications in this manner by defining a choreography of loosely coupled building blocks. However, current research in SOA does not yet address the performability (i.e., performance and dependability) challenges of these modern applications. Our research is developing novel mechanisms to address these challenges. We initially focus on the composition and configuration of the infrastructure hosting the individual services. We illustrate the use of domain-specific modeling languages and model weavers to model infrastructure composition using middleware building blocks, and to enhance these models with the desired performability attributes. We also demonstrate the use of generative tools that synthesize metadata from these models for performability validation using analytical, simulation and empirical benchmarking tools.
Model-Driven Performance Analysis Methodology for Distributed Software Systems
- Proceedings of the Parallel and Distributed Processing Symposium, Long Beach,CA, March 26-30,2007, IEEE Computer Society
"... Abstract — A key enabler of the recently popularized, assemblycentric development approach for distributed real-time software systems is QoS-enabled middleware, which provides reusable building blocks in the form of design patterns that codify solutions to commonly recurring problems. These patterns ..."
Abstract
-
Cited by 2 (1 self)
- Add to MetaCart
(Show Context)
Abstract — A key enabler of the recently popularized, assemblycentric development approach for distributed real-time software systems is QoS-enabled middleware, which provides reusable building blocks in the form of design patterns that codify solutions to commonly recurring problems. These patterns can be customized by choosing an appropriate set of configuration parameters. The configuration options of the patterns exert a strong influence on system performance, which is of paramount importance in many distributed software systems. Despite this considerable influence, currently there is a lack of significant research to analyze performance of middleware at design time, where performance issues can be resolved at a much earlier stage of the application life cycle and with substantially less costs. The present project seeks to develop a performance analysis methodology for design-time performance analysis for distributed software systems implemented using middleware patterns and their compositions. The methodology is illustrated on a producer/consumer system implemented using the Active Object (AO) pattern in middleware. Finally, broader impacts of the methodology for middleware specialization are also described. I.
Performance Analysis of a Middleware Demultiplexing Pattern
- In Proceedings of Hawaii International Conference on System Sciences HICSS-40 (2007), Minitrack, Software Technology Track, Big Island
, 2007
"... A key enabler of the recently adopted, assemblycentric development approach for distributed real-time software systems is QoS-enabled middleware, which provides reusable building blocks in the form of design patterns that codify solutions to commonly recurring problems. These patterns can be customi ..."
Abstract
-
Cited by 2 (2 self)
- Add to MetaCart
(Show Context)
A key enabler of the recently adopted, assemblycentric development approach for distributed real-time software systems is QoS-enabled middleware, which provides reusable building blocks in the form of design patterns that codify solutions to commonly recurring problems. These patterns can be customized by choosing an appropriate set of configuration parameters. The configuration options of a pattern exert a strong influence on system performance, which especially for real-time systems is of paramount importance. Despite this significant influence, currently there are no techniques available to analyze performance at design time, prior to the use of a pattern in a system. Many software systems are based on an event-driven paradigm, primarily because it fosters evolvability and composability. The event demultiplexing and dispatching capabilities that are uniform across such systems are encapsulated in the Reactor pattern, which can be used to facilitate their development. Design-time performance analysis of these event-driven systems thus requires a model of the Reactor pattern. In this paper, we present a performance model of the Reactor pattern based on the Stochastic Reward Net (SRN) modeling paradigm. We discuss how the model can be used to obtain performance metrics such as throughput, loss probability and upper and lower bounds on the response time. We illustrate the use of the model to guide the selection of configuration options and for sensitivity analysis using a case study of a handheld mobile device. We also validate the performance estimates obtained from the model using simulation. 1
Availability Modeling and Evaluation on High Performance Cluster Computing Systems
"... Cluster computing has been attracting more and more attention from both the industrial and the academic world for its enormous computing power and scalability. Beowulf type cluster, for example, is a typical High Performance Computing (HPC) cluster system. Availability, as a key attribute of the sys ..."
Abstract
-
Cited by 1 (0 self)
- Add to MetaCart
Cluster computing has been attracting more and more attention from both the industrial and the academic world for its enormous computing power and scalability. Beowulf type cluster, for example, is a typical High Performance Computing (HPC) cluster system. Availability, as a key attribute of the system, needs to be considered at the system design stage and monitored at mission time. Moreover, system monitoring is a must to help identify the defects and ensure the system’s availability requirement. In this paper, novel solutions which provide availability modeling, model evaluation, and data analysis as a single framework have been investigated. Three key components in the investigation are availability modeling, model evaluation, and data analysis. The general availability concepts and modeling techniques are briefly reviewed. The system’s availability model is divided into submodels based upon their functionalities. Furthermore, an object oriented Markov model specification to facilitate availability modeling and runtime configuration has been developed. Numerical solutions for Markov models are examined, especially on the uniformization method. The paper also presents a monitoring and data analysis framework, which is responsible for failure analysis and availability reconfiguration. ACM Classification: D.2.11, D.2.12, D.2.13 1.
An Analytical Approach to Performance Analysis of an Asynchronous Web Server
"... On behalf of: ..."
(Show Context)
Reliability Analysis of Self-Healing Network using Discrete-Event Simulation
"... The number of processors embedded on high performance computing platforms is continuously increasing to accommodate user desire to solve larger and more complex problems. However, as the number of components increases, so does the probability of failure. Thus, both scalable and fault-tolerance of so ..."
Abstract
-
Cited by 1 (1 self)
- Add to MetaCart
(Show Context)
The number of processors embedded on high performance computing platforms is continuously increasing to accommodate user desire to solve larger and more complex problems. However, as the number of components increases, so does the probability of failure. Thus, both scalable and fault-tolerance of software are important issues in this field. To ensure reliability of the software especially under the failure circumstance, the reliability analysis is needed. The discrete-event simulation technique offers an attractive alternative to traditional Markovian-based analytical models, which often have an intractably large state space. In this paper, we analyze reliability of a self-healing network developed for parallel runtime environments using discreteevent simulation. The network is designed to support transmission of messages across multiple nodes and at the same time, to protect against node and process failures. Results demonstrate the flexibility of a discrete-event simulation approach for studying the network behavior under failure conditions and various protocol parameters, message types, and routing algorithms. 1
Availability and High Performance Systems
"... I am submitting herewith a dissertation written by Thara Angskun entitled “Improving ..."
Abstract
- Add to MetaCart
I am submitting herewith a dissertation written by Thara Angskun entitled “Improving
