https://blog.kalend.top/tags/jvm/Recent content in Jvm on Kalend's BlogHugo -- gohugo.iozhTue, 31 May 2022 22:25:48 +0800https://blog.kalend.top/2022/05/31/java-jvm-configuration.html/Tue, 31 May 2022 22:25:48 +0800https://blog.kalend.top/2022/05/31/java-jvm-configuration.html/<h2 id="jvm常用参数">JVM常用参数 </h2><p><img alt="image-20200819101203" class="gallery-image" data-flex-basis="580px" data-flex-grow="241" height="311" loading="lazy" sizes="(max-width: 767px) calc(100vw - 30px), (max-width: 1023px) 700px, (max-width: 1279px) 950px, 1232px" src="https://cdn.jsdelivr.net/gh/zomin/image-repo/img/20200819101203.png" width="752"></p> <div class="highlight"><div class="chroma"> <table class="lntable"><tr><td class="lntd"> <pre tabindex="0" class="chroma"><code><span class="lnt">1 </span><span class="lnt">2 </span></code></pre></td> <td class="lntd"> <pre tabindex="0" class="chroma"><code class="language-text" data-lang="text"><span class="line"><span class="cl">-server </span></span><span class="line"><span class="cl">-Djava.security.egd=file:/dev/./urandom </span></span></code></pre></td></tr></table> </div> </div><h2 id="cms">CMS: </h2><div class="highlight"><div class="chroma"> <table class="lntable"><tr><td class="lntd"> <pre tabindex="0" class="chroma"><code><span class="lnt">1 </span><span class="lnt">2 </span><span class="lnt">3 </span><span class="lnt">4 </span></code></pre></td> <td class="lntd"> <pre tabindex="0" class="chroma"><code class="language-text" data-lang="text"><span class="line"><span class="cl">-XX:MaxMetaspaceSize=384m -XX:ParallelGCThreads=2 -XX:SurvivorRatio=8 </span></span><span class="line"><span class="cl">-XX:+UseConcMarkSweepGC -XX:CMSFullGCsBeforeCompaction=0 -XX:LargePageSizeInBytes=64m </span></span><span class="line"><span class="cl">-XX:+CMSParallelRemarkEnabled -XX:+UseCMSCompactAtFullCollection </span></span><span class="line"><span class="cl">-XX:+UseFastAccessorMethods -XX:+CMSClassUnloadingEnabled </span></span></code></pre></td></tr></table> </div> </div><h2 id="g1">G1: </h2><div class="highlight"><div class="chroma"> <table class="lntable"><tr><td class="lntd"> <pre tabindex="0" class="chroma"><code><span class="lnt">1 </span><span class="lnt">2 </span><span class="lnt">3 </span><span class="lnt">4 </span><span class="lnt">5 </span></code></pre></td> <td class="lntd"> <pre tabindex="0" class="chroma"><code class="language-text" data-lang="text"><span class="line"><span class="cl">-XX:ParallelGCThreads=2 </span></span><span class="line"><span class="cl">-XX:+UseG1GC </span></span><span class="line"><span class="cl">-XX:G1HeapRegionSize=8 </span></span><span class="line"><span class="cl">-XX:ConcGCThreads=1 </span></span><span class="line"><span class="cl">-XX:InitiatingHeapOccupancyPercent=45 </span></span></code></pre></td></tr></table> </div> </div>