第一篇:
https://www.cnblogs.com/aishangJava/p/10516130.html
第二篇:
http://note.youdao.com/noteshare?id=dab85d3fdbcc4e56aed93d29ae771015
第三篇:
https://juejin.im/post/5e7c7cb1e51d455c3223e56a?utm_source=gold_browser_extension#heading-30
第四篇:
第五篇:
https://blog.csdn.net/qq_29825055/article/details/90602703
第六篇:
https://www.cnblogs.com/xcynice/p/jvm_gc_nei_cun_fen_pei.html