JVM performance diagnosis basic articles-JDK8

 

 

 

 

 

 

 

 

reference:

(1) Detailed explanation of Java object header: https://www.jianshu.com/p/3d38cba67f8b

(2) Why is the age of GC generation 15: https://blog.csdn.net/qq_32099833/article/details/103721326