Java performance optimization techniques and actual combat

　About the performance optimization of Java code, every Javaer is eager to master the ability, and then promoted to Daniel's path, but the Java tuning needs to understand the entire Java operating mechanism and the underlying call details, need to read more reading more than try to write more, not overnight work. This article is a recent author to the company's staff to do a training, mainly on the system in the process of pressure measurement performance problems, and how to improve the code in the process of running efficiency, need to master what practical skills. The film dry more, but also very practical, so issued, shared to everyone (part of the data to do the removal of company characteristics information, forgive me). (PS: Because the original is PPT, so did the export picture processing, does not affect the reading.) ）

Java performance optimization techniques and actual combat