Download or read book Performance Modeling and Analysis of Disk Arrays written by Edward Kihyen Lee and published by . This book was released on 1993 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: As disk arrays become widely used, tools for modeling and analyzing the performance of disk arrays become increasingly important. In particular, accurate performance models and systematic analysis techn iques, combined with a thorough understanding of the expected workload, are invaluable in both configuring and designing disk arrays. Unfortunately, disk arrays, like many parallel systems, are difficult to model and analyze because of \fIqueueing\fR and \fIfork-join synchron ization\fR. In this dissertation, we present an analytic performance model for non- redundant disk arrays and a new technique based on \fIutilization profiles\fR for analyzing the performance of redundant disk arrays. In both cases, we provide applications of our work. We use the analytic model to derive an equation for the optimal size of data striping in disk arrays, and we apply utilization profiles to analyze the performance of RAID- II, our second disk array prototype. The results of the analysis are used to answer several performance related questions about RAID-II and to compare the performance of RAID-II to RAID-I, our first disk array prototype.

Download or read book An Analytic Performance Model of Disk Arrays and Its Application written by University of California, Berkeley. Computer Science Division and published by . This book was released on 1991 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt: As disk arrays become widely used, tools for understanding and analyzing their performance become increasingly important. In particular, performance models can be invaluable in both configuring and designing disk arrays. Accurate analytic performance models are desirable over other types of models because they can be quickly evaluated, are applicable under a wide range of system and workload parameters, and can be manipulated by a range of mathematical tech- niques. Unfortunately, analytic performance models of disk arrays are difficult to formulate due to the presence of queuing and fork- join synchronization: a disk array request is broken up into independent disk requests which must all complete to satisfy the original request. In this paper, we develop, validate and apply an analytic performance model for disk arrays. We derive simple equations for approximating their utilization, response time and throughput. We then validate the analytic model via simulation and investigate the accuracy of each approximation used in deriving the analytic model. Finally, we apply the analytic model to derive an equation fo the optimal unit of data striping in disk arrays.

Download or read book An Analytic Performance Model of Disk Arrays and Its Application written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-30 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: As disk arrays become widely used, tools for understanding and analyzing their performance become increasingly important. In particular, performance models can be invaluable in both configuring and designing disk arrays. Accurate analytic performance models are desirable over other types of models because they can be quickly evaluated, are applicable under a wide range of system and workload parameters, and can be manipulated by a range of mathematical techniques. Unfortunately, analytical performance models of disk arrays are difficult to formulate due to the presence of queuing and fork-join synchronization; a disk array request is broken up into independent disk requests which must all complete to satisfy the original request. We develop, validate, and apply an analytic performance model for disk arrays. We derive simple equations for approximating their utilization, response time, and throughput. We then validate the analytic model via simulation and investigate the accuracy of each approximation used in deriving the analytical model. Finally, we apply the analytical model to derive an equation for the optimal unit of data striping in disk arrays. Lee, Edward K. and Katz, Randy H. Unspecified Center NSF MIP-87-15235; NAG2-591...

Download or read book A Queuing Analysis for Disk Array Systems written by Stanford University. Computer Systems Laboratory and published by . This book was released on 1990 with total page 51 pages. Available in PDF, EPUB and Kindle. Book excerpt: Using a queuing model of disk arrays, we study the performance and tradeoffs in disk array sub-systems and develop guidelines for designing these sub-systems in various CPU environments. Finally, we compare our model with some earlier simulation results.

Download or read book An Analytic Performance Model of Disk Arrays and Its Application written by National Aeronautics and Space Administration NASA and published by . This book was released on 2018-10-23 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: As disk arrays become widely used, tools for understanding and analyzing their performance become increasingly important. In particular, performance models can be invaluable in both configuring and designing disk arrays. Accurate analytic performance models are desirable over other types of models because they can be quickly evaluated, are applicable under a wide range of system and workload parameters, and can be manipulated by a range of mathematical techniques. Unfortunately, analytical performance models of disk arrays are difficult to formulate due to the presence of queuing and fork-join synchronization; a disk array request is broken up into independent disk requests which must all complete to satisfy the original request. We develop, validate, and apply an analytic performance model for disk arrays. We derive simple equations for approximating their utilization, response time, and throughput. We then validate the analytic model via simulation and investigate the accuracy of each approximation used in deriving the analytical model. Finally, we apply the analytical model to derive an equation for the optimal unit of data striping in disk arrays. Lee, Edward K. and Katz, Randy H. Unspecified Center NSF MIP-87-15235; NAG2-591...

Download or read book Performance Analysis of RAID5 Disk Arrays with a Vacationing Server Model for Rebuild Mode Operation written by International Business Machines Corporation. Research Division and published by . This book was released on 1993 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Performance Modeling for Computer Architects written by C. M. Krishna and published by John Wiley & Sons. This book was released on 1995-10-14 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: As computers become more complex, the number and complexity of the tasks facing the computer architect have increased. Computer performance often depends in complex way on the design parameters and intuition that must be supplemented by performance studies to enhance design productivity. This book introduces computer architects to computer system performance models and shows how they are relatively simple, inexpensive to implement, and sufficiently accurate for most purposes. It discusses the development of performance models based on queuing theory and probability. The text also shows how they are used to provide quick approximate calculations to indicate basic performance tradeoffs and narrow the range of parameters to consider when determining system configurations. It illustrates how performance models can demonstrate how a memory system is to be configured, what the cache structure should be, and what incremental changes in cache size can have on the miss rate. A particularly deep knowledge of probability theory or any other mathematical field to understand the papers in this volume is not required.

Download or read book Computer Performance Engineering written by Jeremy T. Bradley and published by Springer Science & Business Media. This book was released on 2009-07 with total page 229 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume constitutes the refereed proceedings of the 6th European Performance Engineering Workshop, EPEW 2009, held in London, UK during July 9-10, 2009. The 13 full papers and 4 short papers presented in this volume, together with the abstract of one invited paper, were carefully reviewed and selected from 33 submissions. The papers deal with modeling of auctions and markets, hardware modeling of RAID systems, performance aspects of cellular and fixed-line networks, mean value analysis, stochastic ordering to queuing networks, extension of passage-time analysis, stochastic process algebra (PEPA), tagged customers in generalised stochastic Petri nets, and representation and analysis of generally-distributed stochastic systems.

Download or read book Analytical and Stochastic Modeling Techniques and Applications written by Khalid Al-Begain and published by Springer Science & Business Media. This book was released on 2008-05-26 with total page 333 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the 15th International Conference on Analytical and Stochastic Modeling Techniques and Applications, ASMTA 2008, held in Nicosia, Cyprus, in June 2008 in conjunction with ECMS 2008, the 22nd European Conference on Modeling and Simulation. The 22 revised full papers presented were carefully reviewed and selected from 55 submissions. The papers are organized in topical sections on traffic modeling, queueing systems, analytical methods and applications, distributions in stochastic modeling, queueing networks, simulation and model checking, as well as wireless networks.

Download or read book Computing and Combinatorics written by Jie Wang and published by Springer. This book was released on 2003-05-15 with total page 613 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the 7th Annual International Conference on Computing and Combinatorics, COCOON 2001, held in Guilin, China, in August 2001.The 50 revised full papers and 16 short papers presented were carefully reviewed and selected from 97 submissions. The papers are organized in topical sections on complexity theory, computational biology, computational geometry, data structures and algorithms, games and combinatorics, graph algorithms and complexity, graph drawing, graph theory, online algorithms, randomized and average-case algorithms, Steiner trees, systems algorithms and modeling, and computability.

Download or read book LATIN 2000 Theoretical Informatics written by Gaston H. Gonnet and published by Springer Science & Business Media. This book was released on 2000-03-23 with total page 497 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the 4th International Conference, Latin American Theoretical Informatics, LATIN 2000, held in Punta del Est, Uruguay, in April 2000. The 42 revised papers presented were carefully reviewed and selected from a total of 87 submissions from 26 countries. Also included are abstracts or full papers of several invited talks. The papers are organized in topical sections on random structures and algorithms, complexity, computational number theory and cryptography, algebraic algorithms, computability, automata and formal languages, and logic and programming theory.

Download or read book Performance Tools and Applications to Networked Systems written by Maria Carla Calzarossa and published by Springer Science & Business Media. This book was released on 2004-04-22 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents revised versions of tutorial lectures given at the IEEE/CS symposium on modeling, analysis, and simulation of computer and telecommunication systems held in Orlando, FL, USA in October 2003. The lectures are grouped in three parts on performance and QoS of modern wired and wireless networks, current advances in performance modeling and simulation, and other specific applications of these methodologies. This tutorial book is targeted to both practitioners and researchers. The practitioner will benefit from numerous pointers to performance and QoS issues; the pedagogical style and plenty of references can be of great use in solving practical problems. The researcher and advanced student are offered a representative set of topics not only for their research value but also for their novelty and use in identifying areas of active research.

Download or read book Performance Evaluation Origins and Directions written by Günter Haring and published by Springer. This book was released on 2003-06-29 with total page 523 pages. Available in PDF, EPUB and Kindle. Book excerpt: This monograph-like state-of-the-art survey presents the history, the key ideas, the success stories, and future challenges of performance evaluation and demonstrates the impact of performance evaluation on a variety of different areas through case studies in a coherent and comprehensive way. Leading researchers in the field have contributed 19 cross-reviewed topical chapters competently covering the whole range of performance evaluation, from theoretical and methodological issues to applications in numerous other fields. Additionally, the book contains one contribution on the role of performance evaluation in industry and personal accounts of four pioneering researchers describing the genesis of breakthrough results. The book will become a valuable source of reference and indispensable reading for anybody active or interested in performance evaluation.

Download or read book Formal Methods and Stochastic Models for Performance Evaluation written by Katinka Wolter and published by Springer Science & Business Media. This book was released on 2007-09-17 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the 4th European Performance Engineering Workshop, EPEW 2007, held in Berlin, Germany, September 27-28, 2007. The 20 revised full papers presented were carefully reviewed and selected from 53 submissions. The papers are organized in topical sections on Markov Chains, Process Algebra, Wireless Networks, Queueing Theory and Applications of Queueing, Benchmarking and Bounding, Grid and Peer-to-Peer Systems.

Download or read book Digital Systems and Applications written by Vojin G. Oklobdzija and published by CRC Press. This book was released on 2017-12-19 with total page 1775 pages. Available in PDF, EPUB and Kindle. Book excerpt: New design architectures in computer systems have surpassed industry expectations. Limits, which were once thought of as fundamental, have now been broken. Digital Systems and Applications details these innovations in systems design as well as cutting-edge applications that are emerging to take advantage of the fields increasingly sophisticated capabilities. This book features new chapters on parallelizing iterative heuristics, stream and wireless processors, and lightweight embedded systems. This fundamental text— Provides a clear focus on computer systems, architecture, and applications Takes a top-level view of system organization before moving on to architectural and organizational concepts such as superscalar and vector processor, VLIW architecture, as well as new trends in multithreading and multiprocessing. includes an entire section dedicated to embedded systems and their applications Discusses topics such as digital signal processing applications, circuit implementation aspects, parallel I/O algorithms, and operating systems Concludes with a look at new and future directions in computing Features articles that describe diverse aspects of computer usage and potentials for use Details implementation and performance-enhancing techniques such as branch prediction, register renaming, and virtual memory Includes a section on new directions in computing and their penetration into many new fields and aspects of our daily lives

Download or read book Fifth NASA Goddard Conference on Mass Storage Systems and Technologies written by Benjamin Kobler and published by . This book was released on 1996 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Advances in Grid and Pervasive Computing written by Laurence Tianruo Yang and published by Springer Science & Business Media. This book was released on 2008-05-08 with total page 531 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the Third International Conference on Grid and Pervasive Computing, GPC 2008, held in Kunming, China, in May 2008. The 45 revised full papers presented together with 2 keynote lectures were carefully reviewed and selected from 184 submissions. The papers cover all current issues of grid and pervasive computing and focus on topics such as cluster computing, grid computing, high performance computing, network storage, peer-to-peer computing, pervasive computing, the Semantic Web and the Semantic Grid, and service-oriented computing.