java 虚拟机官方介绍

http://docs.oracle.com/javase/8/

-- jvm参数

-Djava.awt.headless=true   无键盘，显示器模式
-Djava.net.preferIPv4Stack=true   java网络编程调用ip地址使用IPv4

-server -Xmx2g -Xms2g -Xmn256m 服务器模式启动 最大堆空间， 年轻代大小
-XX:PermSize=128m xmn永久区 class类静态字面量类越多，越大
-Xss256k 每个线程占内存大小
-XX:+DisableExplicitGC 禁用system.gc，使其调用无效，防止手动调用，导致无法进行 full gc
-XX:+UseConcMarkSweepGC 使用标记清理收集器
-XX:+CMSParallelRemarkEnabled 降低标记停顿
-XX:+UseCMSCompactAtFullCollection  在FULL GC的时候， 对年老代的压缩
-XX:LargePageSizeInBytes=128m  内存页的大小不可设置过大， 会影响Perm的大小
-XX:+UseFastAccessorMethods 原始类型的快速优化
-XX:+UseCMSInitiatingOccupancyOnly 使用手动定义初始化定义开始CMS收集
-XX:CMSInitiatingOccupancyFraction=70 使用cms作为垃圾回收使用70％后开始CMS收集

About Java SE 8 What's New (Features and Enhancements) Commercial Features icon: link opens in a new window Compatibility Guide Known Issues

Download and Install Certified System Configurations Download and Installation Instructions

Write Your First Application Get Started with Java Get Started with JavaFX

Learn the Language Java Tutorials Learning Paths

Monitor and Troubleshoot Java Mission Control icon: link opens in a new window Java Flight Recorder icon: link opens in a new window Troubleshooting Guide

HotSpot Virtual Machine Java Platform, Standard Edition HotSpot Virtual Machine Garbage Collection Tuning Guide java平台，标准版本hotspot虚拟机垃圾回收协调指南：http://docs.oracle.com/javase/8/docs/technotes/guides/vm/gctuning/toc.html JRockit to HotSpot Migration Guide

Deploy Deployment Guide

Reference Java SE API Documentation JavaFX API Documentation HotSpot Serviceability Agent API Documentation Developer Guides Java Language and Virtual Machine Specifications Java SE Tools Reference for UNIX Java SE Tools Reference for Windows

Release Notes Java SE Release Notes

java 官方提供所有书籍 http://docs.oracle.com/javase/8/javase-books.htm

Java SE API Documentation Developer Guides Deployment Guide Troubleshooting Guide Installation Guide Java Mission Control Release Notes Java SE Release Notes Specifications The Java Tutorials Tools Reference for UNIX Platforms Tools Reference for Windows Platforms HotSpot Serviceability Agent API Documentation HotSpot Virtual Machine Garbage Collection Tuning Guide JRockit to HotSpot Migration Guide

JavaFX Adding HTML Content to JavaFX Applications Getting Started with JavaFX Handling Events Incorporating Media Assets Into JavaFX Applications Interoperability JavaFX API Documentation Mastering FXML Properties and Binding Tutorial Sample Applications for Tutorials Transformations, Animations, and Visual Effects Using JavaFX Collections Working with JavaFX Graphics Working with JavaFX UI Components Working with Layouts in JavaFX Working with the JavaFX Scene Graph

Oracle Java SE Embedded Developer's Guide Release Notes, Release 8u6 Release Notes, Release 8.0 JDK for ARM Release Notes, Release 8u6

JavaFX Scene Builder 2 Getting Started with JavaFX Scene Builder Installing JavaFX Scene Builder Release Notes User Guide Using JavaFX Scene Builder with Java IDEs