Java Performance Tuning 英文PDF版 15.4MB

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.

译：性能对java开发者自从第一个版本击中街道是一个重要的问题。多年来，java的性能有了显著的提高，但调整是为了获得最好的结果是必要的，尤其是对于J2EE应用程序。你永远不能有代码，运行速度太快。java性能调优，第二版提供了一个全面的消除所有类型的性能问题引导不可或缺。用许多真实的例子，通过优化过程进行了详细的阐述，说明技巧JPT如减少对象创建和替换字符串数组真的会提高你的代码的性能。调谐调谐J2SE应用J2EE应用与许多相似之处，但重要的和具体的考虑。因为这个原因，java性能调优，第二版包括四个新的章节：J2EE应用调整一般由调谐JDBC章新的一章，servlet和jsp，和EJB。java性能调优提供常识如何调整和独自离开，强调技术可以提供很大的性能提升，用最少的代码重构。它给你重要的指导，可以帮助你调整，而不破坏你的程序的架构。一味的改变在努力使一个程序的东西跑得更快是创造车的好方法，这样的代码。java性能调优教你有效地工作，导致代码是健壮的，可维护的，快速的。