Jprofiler memory leak tutorial1/7/2024 ![]() JProfiler supports integrated analysis of these subsystems.ĭistributed Application Performance Diagnosis For example, with Java Database Connectivity (JDBC) calls, you probably want to find out which SQL statement is the slowest. ![]() High-level subsystems - Many performance problems occur on a higher semantic level.Thread and lock - JProfiler provides multiple analysis views on threads and locks to help you discover multithreading problems.Allocations - Through analyzing objects on the heap, reference chains, and garbage collection, this functionality enables you to fix memory leaks and optimize memory usage.Method calls - The analysis of method calls helps you to understand what your application is doing and find ways to improve its performance.It focuses on addressing four important topics: JProfiler is a Java application performance diagnostic tool developed by ej-technologies. ![]() In addition, it can intuitively display the quantity and size of each object in Java heaps, the number of times that a Java method is called, and the duration that a Java method is executed. It obtains analytical data of the target JVM, including CPU usage, memory usage, threads, heaps, and stacks, by using various methods such as JMX, jstatd, and Attach API. JVisualvm is a built-in visual performance diagnostic tool provided by the JDK. The following are several comprehensive graphical performance diagnostic tools: JVisualvm The analytical data is generated at a terminal, and the results are not intuitively displayed.You must log on to the host machine of the target Java application to use them, which is not very convenient.They are very important for identifying the performance bottlenecks of your application. They cannot obtain the method-level analytical data, such as the call relationship between different methods, and the frequency and duration that a method is called.However, they have the following drawbacks: You can use any or any combinations of the above command line tools to help you obtain the basic performance information about the target Java application. It allows you to obtain various information about the performance statistics, Java Flight Recorder (JFR), memory usage, garbage collection, thread stacking, and JVM runtime of the target Java process. jcmd - is more comprehensive than jstat.It allows you to obtain various information about loaded classes, Just-In-Time (JIT) compilation, garbage collection, and memory usage of the target Java process. jstat - is a light-weight versatile monitoring tool. ![]()
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