在本文中，我将介绍性能分析的基本概念和不同类型的开源 Java 分析器，让你可以根据自己的需要选择最适合的分析器，并了解这些工具大致的工作原理。 在 2023 年伦敦 QCon 演讲“你的 Java 应用程序很慢吗？试试这些开源分析器”中，我深入探讨过这个话题，也 ...

Sun Microsystems has unveiled a new GUI-based tool for visualizing data sources and troubleshooting Java applications. Java VisualVM 1.0 launched Tuesday as part of JavaSE 6 Update 7. VisualVM is a ...

Although jstack (Java Stack Trace) is a useful tool for learning more about a how a Java thread is behaving, VisualVM is an even easier method for obtaining the same type of information. It is easy to ...

In previous blog posts, I have covered using VisualVM to acquire HotSpot JVM runtime information in a manner similar to jinfo and how to use VisualVM in conjunction with JMX and MBeans in a manner ...

There is some overlap -- but they're fundamentally different. Java instrumentation will track each and every instance of a given metric. This can create performance issues. Java sampling involves ...