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java SE

Java SE 6 U18的性能提升

分类: JavaFX新闻.
标签: , ,

和J2SE u17不同, U18更新版不是针对安全性的，它主要是提高性能的改进版本，对整个Java SE 6的很多方面都作了性能上的提升。


快速创建jar文件:如何你的程序里需要创建很多jar,应该可以看到20%的性能提高。


Hotspot虚拟机的增强功能：主要包括了一些硬件相关的优化，垃圾回收参数的改进，类加载的优化，编译时代码生成的优化等。G1垃圾回收器也增强了，但是如果要在生产上用，建议还是购买Sun的支持服务。


应用启动的时间优化：Web Start和applet应用可以同时download多个jar文件，速度加快。如果是JavaFX的应用，启动的速度加快了大约20%。我试了一下上次提到的冬奥会JavaFX的程序，在U18下启动确实快了不少。


其他的一些改进有：图形界面的性能，zip文件的读操作，部署更新等。更多的信息可以参考这里。


其他：

Eclipse的JavaFX插件发布
NetBeans 6.8的新功能
JavaFX in Olympics
离线启动JavaFX程序
US Citizenship Application and Test
Canadian Citizenship Test
US Citizenship Application Guide
British Citizenship Exam information
Australian Citizenship Test Online Practise
UK citizenship Test

评论 (0) 2010年01月19日