![]() In short, we need to pay attention to the "flat top" when looking at the flame graph, because there is the CPU hot spot of our program. The flame graph is a visual performance analysis graph generated based on the sample set of the call stack, "How to read the flame graph? "The article gives a good explanation of the flame diagram, you can refer to it. View Image Intellij IDEA-Performance Flame Graph After a certain period of time (5min is recommended), click "Stop Profiling and Show Results" on the Profiler interface to see the profiling results, including the flame graph and the call tree, as shown in the following figure: For a detailed introduction, please refer to the official Blog.Īfter opening the Java project that needs to be diagnosed with IDEA, add a "CPU Profiler" in the "Preferences -> Build, Execution, Deployment -> Java Profiler" interface, then return to the project and click "Run with Profiler" in the upper right corner to start Project and start the CPU Profiling process. The latest version of Intellij IDEA we use every day also integrates a simple and easy-to-use Profiler. There are many JVM Profilers implemented in the community, such as the commercially available and powerful JProfiler, and free and open source products, such as JVM-Profiler, each with its own advantages. After obtaining the above related information through CPU Profiling, the developers You can easily analyze and optimize performance against hot bottlenecks, thereby breaking through performance bottlenecks and greatly improving system throughput. The commonly used JVM Profiler can dynamically analyze the program from multiple aspects, such as CPU, Memory, Thread, Classes, GC, etc., and the application of CPU Profiling The most extensive.ĬPU Profiling is often used to analyze code execution hotspots, such as "Which method occupies the longest CPU execution time", "What is the percentage of CPU occupied by each method", etc. Profiling technology is a dynamic analysis method that collects program-related information when the application is running. OpenJDK anycodings_linux Runtime Environment (build 1.8.0_242-b08)Īnycodings_linux OpenJDK 64-Bit Server VM (build 25.When R&D personnel encounter online alarms or need to optimize system performance, they often need to analyze program operating behavior and performance bottlenecks. Can anybody help figure out anycodings_linux what causes this exception.Īnycodings_linux openjdk version "1.8.0_242" I anycodings_linux googled for it and no where I came across anycodings_linux anybody facing the same issue and resolution anycodings_linux for the same. ![]() Âat anycodings_linux .(AbstractPlainSocketImpl.java:81) Âat anycodings_linux (NativeMethodAccessorImpl.java:62)Īnycodings_linux âat anycodings_linux (DelegatingMethodAccessorImpl.java:43)Īnycodings_linux âat anycodings_linux .invoke(Method.java:498)Īnycodings_linux âat anycodings_linux .launch(LauncherEngine.java:65)Īnycodings_linux âat anycodings_linux .UnixLauncher.main(UnixLauncher.java:57)Ĭaused anycodings_linux by: Īnycodings_linux âat anycodings_linux (ClassLoader.java:1847)Īnycodings_linux âat anycodings_linux 0(Runtime.java:871)Īnycodings_linux âat anycodings_linux (System.java:1124)Īnycodings_linux âat anycodings_linux $1.run(AbstractPlainSocketImpl.java:84)Īnycodings_linux âat anycodings_linux $1.run(AbstractPlainSocketImpl.java:82)Īnycodings_linux âat anycodings_linux (Native anycodings_linux Method) When I choose 1 and press Enter, it throws anycodings_linux the following exception:Īnycodings_linux âat anycodings_linux (ServerSocket.java:303)Īnycodings_linux âat anycodings_linux .(ServerSocket.java:245)Īnycodings_linux âat anycodings_linux .(ServerSocket.java:143)Īnycodings_linux âat anycodings_linux .ab.b(ejt:30)Īnycodings_linux âat .ab.a(ejt:13)Īnycodings_linux âat anycodings_linux .l(ejt:141)Īnycodings_linux âat anycodings_linux .a(ejt:131)Īnycodings_linux âat anycodings_linux .h(ejt:95)Īnycodings_linux âat anycodings_linux .a(ejt:26)Īnycodings_linux âat anycodings_linux .main(ejt:272)Īnycodings_linux âat anycodings_linux 0(Native anycodings_linux Method) Offline mode (use config file to set anycodings_linux profiling settings) ![]() GUI mode anycodings_linux (attach with JProfiler GUI) It anycodings_linux prompted to select the profiling mode as anycodings_linux shown below: Since anycodings_linux there is only once process running which is anycodings_linux my vertx server, it was auto selected.
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