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重磅！Java 性能监控调试工具 JMC 宣布开源 </h2>
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开源中国 </a>
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<strong class="profile_nickname">开源中国</strong>
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<span class="profile_meta_value">OSChina 开源中国 官方微信账号</span>
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<em id="publish_time" class="rich_media_meta rich_media_meta_text">2018-05-08</em>
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<p><img class="" data-copyright="0" data-ratio="0.4375" data-s="300,640" data-src="https://mmbiz.qpic.cn/mmbiz_png/dkwuWwLoRKibsOl5cFwAxljiafKzno3KAiaex9Me5mXVptJ3THxXfV8uM1LPcibjfbjbibZ2cbTiaaXpOPESc3vUTdYg/640?wx_fmt=png" data-type="png" data-w="640" style=" auto !important; height: auto !important; visibility: visible !important;" src="https://mmbiz.qpic.cn/mmbiz_png/dkwuWwLoRKibsOl5cFwAxljiafKzno3KAiaex9Me5mXVptJ3THxXfV8uM1LPcibjfbjbibZ2cbTiaaXpOPESc3vUTdYg/640?wx_fmt=png&tp=webp&wxfrom=5&wx_lazy=1" data-fail="0"></p><p style="white-space: normal;"><br></p><p><span style="font-size: 15px;">JRockit JVM 创始人之一、Oracle Java 产品组成员 Marcus Hirt 昨日在其</span><span style="font-size: 15px;">博客上宣布</span><span style="font-size: 15px;">，Java Mission Control（JMC）的源代码已正式开源。</span></p><p><span style="font-size: 15px;"><br></span></p><p><img class="" data-ratio="0.3839811542991755" data-src="https://mmbiz.qpic.cn/mmbiz_png/dkwuWwLoRKibsOl5cFwAxljiafKzno3KAiaJEf3CyPbensLV8xaBX0icQZSDKibSbm7NCsFKtKNfMF8fKP6ae66ncmw/640?wx_fmt=png" data-type="png" data-w="849" height="326" style="box-sizing: border-box; border: none; outline: 0px; auto !important; height: auto !important; visibility: visible !important;" width="849" _width="auto" src="https://mmbiz.qpic.cn/mmbiz_png/dkwuWwLoRKibsOl5cFwAxljiafKzno3KAiaJEf3CyPbensLV8xaBX0icQZSDKibSbm7NCsFKtKNfMF8fKP6ae66ncmw/640?wx_fmt=png&tp=webp&wxfrom=5&wx_lazy=1" data-fail="0"></p><p><span style="font-size: 15px;"><br></span></p><p><span style="font-size: 15px;">JMC 是源自 JRockit JVM 的一套监控和管理工具，Oracle 在 2013 年发布 JAVA 7u40（Java 7 Update 40） 时将其包含在 JDK 中，用户不再需要额外下载。该工具主要由三个组件构成：Java 进程浏览器、JMX 控制台和 Java Flight 记录器。</span></p><p><span style="font-size: 15px;"><br></span></p><ul class="list-paddingleft-2" style=""><li><p><span style="font-size: 15px;">Java 进程浏览器允许用户列出并连接到本地和远程运行的 Java 应用。它能够使用 Java 发现协议（JDP）自动地发现本地和远程运行的 Java 进程。</span></p></li><li><p><span style="font-size: 15px;">JMX 控制台能够通过 JMX 接口管理并监控 JDK 。它提供了实时集合、堆使用情况、CPU 负载以及其他通过 MBeans 暴露的和在 MBean 服务器中注册的信息。</span></p></li><li><p><span style="font-size: 15px;">Java Flight 记录器提供了一种从操作系统层、JVM 和 Java 应用程序层收集事件的方式。收集的事件包括线程延时事件，例如休眠（sleep）、等待（wait）、锁竞争、I/O、GC 和方法分析。</span></p></li></ul><p><br></p><p style="text-align: center;"><img class="img_loading" data-ratio="0.8666666666666667" data-src="https://mmbiz.qpic.cn/mmbiz_png/dkwuWwLoRKibsOl5cFwAxljiafKzno3KAiaVaRAyQkWKatgOiaupIkwfvibuaH6oTJXTjvg0Tc8pQpYRckxrbylBNvQ/640?wx_fmt=png" data-type="png" data-w="330" height="286" style="box-sizing: border-box; border: none; outline: 0px; 330px !important; height: 286px !important;" width="330" _width="auto" src="data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVQImWNgYGBgAAAABQABh6FO1AAAAABJRU5ErkJggg=="></p><p style="white-space: normal;"><br></p><p style="white-space: normal;"><span style="font-size: 15px;">详细博客内容：</span></p><p style="white-space: normal;"><br></p><ul class="list-paddingleft-2" style="list-style-type: disc;"><li><p style="white-space: normal;"><span style="color: rgb(136, 136, 136);">http://hirt.se/blog/?p=944</span></p></li></ul><p style="white-space: normal;"><br></p><p style="white-space: normal;">源码地址：</p><p style="white-space: normal;"><br></p><ul class="list-paddingleft-2" style="list-style-type: disc;"><li><p style="white-space: normal;"><span style="color: rgb(136, 136, 136);">http://hg.openjdk.java.net/jmc</span></p></li></ul><p style="white-space: normal;"><br></p><p style="white-space: normal;max- 100%;min-height: 1em;background-color: rgb(255, 255, 255);box-sizing: border-box !important;word-wrap: break-word !important;"><img class="__bg_gif" data-ratio="0.03125" data-src="https://mmbiz.qpic.cn/mmbiz_gif/dkwuWwLoRKicLMSBQwMJh2CAFYq0Vic0Q8Z7oicWvA5lqA69VOhOjbu7pOMw2wl4j2HgzQ65l8PGXmaciatDUJT95w/640?wx_fmt=gif" data-type="gif" data-w="640" style="text-align: center; box-sizing: border-box !important; word-wrap: break-word !important; visibility: visible !important; 640px !important; height: 20px !important;" width="auto" _width="640px" src="data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVQImWNgYGBgAAAABQABh6FO1AAAAABJRU5ErkJggg==" data-order="0"><br style="max- 100%;box-sizing: border-box !important;word-wrap: break-word !important;"></p><p style="white-space: normal;max- 100%;min-height: 1em;background-color: rgb(255, 255, 255);box-sizing: border-box !important;word-wrap: break-word !important;"><br></p><section style="white-space: normal;max- 100%;box-sizing: border-box;background-color: rgb(255, 255, 255);letter-spacing: 3px;text-align: justify;font-size: 14px;line-height: 1.75;word-wrap: break-word !important;"><section class="" powered-by="xiumi.us" style="max- 100%;box-sizing: border-box;word-wrap: break-word !important;"><section class="" style="margin-top: 10px;margin-bottom: 10px;max- 100%;box-sizing: border-box;word-wrap: 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