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</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div></li><li>接着，通过运行<code>java -jar arthas-boot.jar</code>选择需要挂载的目标Java进程。</li></ul><p><strong>第二步：排除GC影响</strong></p><ul><li>运行<code>dashboard</code>命令，关注屏幕中间Memory相关的信息。检查内存使用情况（usage）是否已满以及GC（垃圾回收）频率是否过高。如果GC频繁，可能说明存在内存泄露或不当的内存使用模式导致CPU被频繁用于GC操作。</li></ul><p><strong>第三步：定位高CPU消耗的线程</strong></p><ul><li>继续使用<code>dashboard</code>命令，这次重点关注屏幕上部的进程信息，识别出哪些线程占据了较高的CPU资源。思考这些线程与程序的哪部分逻辑相关联。</li></ul><p><strong>第四步：深入分析高CPU消耗线程</strong></p><ul><li>执行<code>thread -n 8</code>命令来查看最繁忙的8个线程的堆栈信息。这些堆栈信息会展示线程当前主要停留在哪个方法上执行，从而帮助定位到CPU消耗较多的具体方法或代码块。</li></ul><p><strong>解释上述步骤：</strong></p><ul><li>通过排除GC影响，我们首先确定问题是否由内存管理不当引起，因为频繁的GC活动也会占用大量CPU资源。</li><li>定位到高CPU消耗的线程后，我们能更有针对性地调查问题，而不是盲目地在整个应用中搜索。</li><li>深入分析线程堆栈是关键一步，它直接指向了问题发生的代码位置，为后续的代码优化或问题修复提供了准确的方向。</li></ul><p>综上所述，利用Arthas的这一系列命令，你可以逐步缩小问题范围，最终定位到造成CPU占用过高的具体原因，并据此采取相应的优化措施。</p><!----><h2 id="参考链接" tabindex="-1"><a class="header-anchor" href="#参考链接" aria-hidden="true">#</a> 参考链接 ：</h2><p>*专家经验：Arthas 如何借助arthas诊断cpu过高的原因？</p><p>*专家经验：Arthas 快速启动</p><p>*专家经验：Arthas 介绍</p><!----><h2 id="答疑服务说明" tabindex="-1"><a class="header-anchor" href="#答疑服务说明" aria-hidden="true">#</a> <!----></h2><p>本内容经由技术专家审阅的用户问答的镜像生成，我们提供了<!---->，在<!---->。您也可以访问 : <a href="https://answer.opensource.alibaba.com/docs/intro" target="_blank" rel="noopener noreferrer">全局专家答疑<span><svg class="external-link-icon" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewbox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg><span class="external-link-icon-sr-only">在新窗口打开</span></span></a> 。 咨询其他产品的的问题</p><h3 id="反馈" tabindex="-1"><a class="header-anchor" href="#反馈" aria-hidden="true">#</a> 反馈</h3><p>如问答有错漏，欢迎点：<a href="https://ai.nacos.io/user/feedbackByEnhancerGradePOJOID?enhancerGradePOJOId=16045" target="_blank" rel="noopener noreferrer">差评<span><svg class="external-link-icon" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewbox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg><span class="external-link-icon-sr-only">在新窗口打开</span></span></a>给我们反馈。</p></div><!--[--><!--]--></div><footer class="page-meta right-menu-padding" data-v-fdd717e0><div class="meta-item edit-link"><a class="external
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