Performancemanagement für serviceorientierte Java-Anwendungen
Entwicklungsteams und Systemadministratoren sind gleichermaßen für die Performance der von ihnen betreuten Anwendungen verantwortlich. Oftmals verwenden beide Seiten jedoch sehr unterschiedliche Methoden und Verfahren im Rahmen der Performanceanalyse und -optimierung. Hieraus resultieren im Falle tatsächlicher Performanceeinbrüche unangenehme Rechtfertigungszwänge und wenig zielführende Schuldzuweisungen. Das vorliegende Buch greift diese Problematik für javabasierte Architekturen auf. Ausgehend von bekannten oder prognostizierten Mengengerüsten sowie fachlich motivierten Anforderungen in Bezug auf Antwortzeiten werden die zu erreichenden Performanceziele festgelegt. Aus diesen lassen sich dann für Entwicklung und Betrieb zwar unterschiedliche, aber aufeinander abgestimmte und quantifizierbare, Vorgaben ableiten. Das Buch führt hierzu in die benötigten analytischen Methoden ein und stellt Softwarewerkzeuge zur Erfassung und Aufbereitung von Performancedaten zur Verfügung.

Seminar

Java Performance Tuning
Performance has been an important issue for Java developers ever since the first version hit the streets. Over the years, Java performance has improved dramatically, but tuning is essential to get the best results, especially for J2EE applications. You can never have code that runs too fast. Java Peformance Tuning, 2nd edition provides a comprehensive and indispensable guide to eliminating all types of performance problems. Using many real-life examples to work through the tuning process in detail, JPT shows how tricks such as minimizing object creation and replacing strings with arrays can really pay off in improving your code´s performance. Tuning J2EE applications bears many similarities to tuning J2SE apps, but important and specific considerations apply. For this reason, Java Performance Tuning, Second Edition includes four new chapters: a new chapter on J2EE application tuning in general followed by chapters on tuning JDBC, servlets and JSPs, and EJBs. Java Performance Tuning offers common-sense advice about what to tune and what to leave alone, emphasizing techniques that provide big performance gains with minimal code restructuring. It gives you crucial guidance that helps you tune without destroying your program´s architecture. Blindly changing things in an effort to make a program run faster is a great way to create buggy, unmaintainable code. Java Performance Tuning teaches you to work efficiently and effectively, resulting in code that is robust, maintainable, and fast. Java Performance Tuning, Second Edition shows you how to: * Create a performance plan * Glean information about your program´s behavior from profiling tools * Identify bottlenecks before tuning * Minimize the number of objects your program creates, particularly critical for J2EE applications * Optimize the use of strings * Avoid performance penalties from inefficient code * Improve the behavior of loops and switches * Optimize I/O behavior * Use appropriate algorithms for sorting and other common tasks * Use threads effectively * Optimize the performance of distributed systems * Speed up servlets and JSPs * Structure JDBC usage efficiently * Use effective design patterns to optimize EJB performance Covers JDK 1. 4

Seminar