{"action":"opened","issue":{"url":"https://api.github.com/repos/sunfuchang/mblog-comments/issues/11","repository_url":"https://api.github.com/repos/sunfuchang/mblog-comments","labels_url":"https://api.github.com/repos/sunfuchang/mblog-comments/issues/11/labels{/name}","comments_url":"https://api.github.com/repos/sunfuchang/mblog-comments/issues/11/comments","events_url":"https://api.github.com/repos/sunfuchang/mblog-comments/issues/11/events","html_url":"https://github.com/sunfuchang/mblog-comments/issues/11","id":327209764,"number":11,"title":"使用visualvm监控Java程序性能三——浏览堆dump文件 - IT技术博客","user":{"login":"sunfuchang","id":6100874,"avatar_url":"https://avatars1.githubusercontent.com/u/6100874?v=4","gravatar_id":"","url":"https://api.github.com/users/sunfuchang","html_url":"https://github.com/sunfuchang","followers_url":"https://api.github.com/users/sunfuchang/followers","following_url":"https://api.github.com/users/sunfuchang/following{/other_user}","gists_url":"https://api.github.com/users/sunfuchang/gists{/gist_id}","starred_url":"https://api.github.com/users/sunfuchang/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/sunfuchang/subscriptions","organizations_url":"https://api.github.com/users/sunfuchang/orgs","repos_url":"https://api.github.com/users/sunfuchang/repos","events_url":"https://api.github.com/users/sunfuchang/events{/privacy}","received_events_url":"https://api.github.com/users/sunfuchang/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":0,"created_at":"2018-05-29T08:01:58Z","updated_at":"2018-05-29T08:01:58Z","closed_at":null,"author_association":"OWNER","body":"https://blog.belonk.com/c/visualvm_heapdump_file_view.html \n\n 堆dump，即堆转储，其实是一个当前JVM堆内存所有对象在某个时间点上的快照。堆dump用来将当前应用程序的堆内存中的数据信息保存为文件，并可以快速浏览文件中的内容，查询对象分配信息。堆dump是分析程序类和实例对象的关键手段，通过将堆内存信息保存起来，从而为后续分析做好准备工作。分析对dump，找出占用资源较高的对象，找出其引用关系，然后进行代码优化。"}}
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