https://blog.mygraphql.com/zh/tags/safepoint/ Recent content in Safepoint on Mark 的滿紙方糖言 Hugo -- gohugo.io zh labile.zhu@gmail.com (Mark Zhu) labile.zhu@gmail.com (Mark Zhu) Mark Zhu ©2026, All Rights Reserved Tue, 29 Oct 2024 08:47:11 +0100 https://blog.mygraphql.com/zh/notes/java/safepoint-collaboration-diagrams-jvm-insider-2024-10-28/ Tue, 29 Oct 2024 08:47:11 +0100 labile.zhu@gmail.com (Mark Zhu) Tue, 29 Oct 2024 08:47:11 +0100 https://blog.mygraphql.com/zh/notes/java/safepoint-collaboration-diagrams-jvm-insider-2024-10-28/ <p>花数月时间，精心制作完成了<a href="https://jvm-insider.mygraphql.com/">《面向技术宅的 JVM 内幕》</a>的 Safepoint 与 Threads Handshake 两节内容。是我现在能找到的全网最完整细致的 Safepoint 原理与实现分析。以下是节选内容。原文见：</p> <ul> <li><a href="https://jvm-insider.mygraphql.com/zh-cn/latest/exec-engine/safepoint/safepoint.html">Safepoint</a></li> <li><a href="https://jvm-insider.mygraphql.com/zh-cn/latest/exec-engine/safepoint/threads-handshake.html">Threads Handshake</a></li> </ul> <p><img src="../jni-junior/index.assets/book-cover-mockup.jpg" alt="logo"></p> <p>可以这么说，我之前和大分部 Java 程序员，从 2014 年 Java 8 起，就很少再积极跟进 Java 底层的新技术了。原因无非几个：</p> Mark Zhu java jvm-insider safepoint https://blog.mygraphql.com/zh/notes/java/java-reach-safepoint-stalled/ Sat, 23 Sep 2023 03:12:15 +0800 labile.zhu@gmail.com (Mark Zhu) Sat, 23 Sep 2023 03:12:15 +0800 https://blog.mygraphql.com/zh/notes/java/java-reach-safepoint-stalled/ <p><img src="https://blog.mygraphql.com/zh/notes/java/java-reach-safepoint-stalled/index.assets/logo.jpg" alt="logo"></p> <p>[TOC]</p> <h2 id="概述">概述</h2> <p>Java 支持好几种文件读取方法，本文要说的是小众的 <code>mmap(MappedByteBuffer)</code> 以及它与 Safepoint、JVM 服务卡顿之间的关系。本文尝试用 eBPF 等分析方法，去证明具体环境下，问题的存在与否。</p> Mark Zhu java jvm safepoint kernel io