资讯

本文将深入JVM将从不同版本的jdk对方法区展开介绍,希望对你有所启发。 一、元空间基本概念 1. 什么是JVM方法区 方法区主要是用于存储类信息、静态变量以及常量信息的。是各个线程共享的一个区域。我们都知道JVM中有个区域叫堆区,所以有时候人们也会称方法区为Non-Heap(非堆)。 在JDK8之前 ...
java.lang.OutOfMemoryError: Java heap space Dumping heap to simple_leak.hprof ... 我们将 .hprof文件导入 MAT 后,它会首先进行解析和索引。 完成后,可以查看它的 **“泄漏嫌疑报告” (Leak Suspects Report)**。 Mat Leak Suspects Report 下图中的 ...
今天分享一套生产环境亲测有效的 “OOM 三连斩” 方案:从定位根源到代码修复,再到参数优化,三步彻底解决问题,附完整工具命令和调优模板,新手也能照葫芦画瓢!
在当今技术日益发展的背景下,面试官常常会问到与Java相关的OutOfMemoryError(OOM)问题,以评估候选人的专业能力。本篇文章将深入分析OOM的多种类型及其产生原因,同时提供有效的解决方案。 首先,让我们解密最常见的OOM类型: java.lang.OutOfMemoryError: Java heap space 触发原因:当堆内存不足,以至于 ...
Explore Java's latest feature, Pattern Matching for Switch. Understand its enhancements, including support for any reference type, new case labels, guarded patterns, and more!
Use ForkJoinPool to break down computationally intensive tasks and execute them in parallel for better Java application performance.
The latest upgrade of standard Java, now available in a production release, incubates or previews a number of new capabilities including virtual threads and structured concurrency.
The easiest way to optimize your Java runtime is to supply correct JVM options and parameters. In honor of the Java 21 release, we examine the 21 most important Java JVM options you can configure.
Running with GNU Parallel support parameter set to true. :) -q flag was triggered, starting calculations for 1 threshold mapping quality :) -i flag was triggered, building mapq without :) -c flag was ...