To observe the internal state of the JVM, JProfiler provides different telemetry survey views, as shown below: Monitor usage statistics Monitor usage statisticsĭisplay group monitoring, thread and monitoring category statistics monitoring data.History detection record History usage historyĭisplay the history of major waiting events and blocking events.Show the monitors currently in use and include their associated threads. Current monitor useage Current monitor useage.Show a chart that contains all the deadlocks in the JVM. Deadlock Detection Chart Deadlock Detection.Shows an activity schedule along with thread activity and thread status.ĭisplay a list, including all active threads and their current activity status. Shows a diagram of the access queue starting from the selected method, class, package or J2EE component.įor thread analysis, JProfiler provides the following views: The hotspot can be calculated according to method requests, JDBC, JMS and JNDI service requests, and according to URL requests. The backtracking tree can be displayed for each hot spot. Show a list of the most time-consuming methods. The request tree can be split according to the different needs of Servlet and JSP for URL. JDBC, JMS and JNDI service requests are all annotated in the request tree. The CPU view section includes:ĭisplay an accumulated top-down tree, which contains all the access queues recorded in the JVM. All views can be gathered on different layers such as methods, classes, packages or J2EE components. Thread or thread group and thread status can be selected by all views. JProfiler provides different methods to record the access tree to optimize performance and details. It can also provide the function of combining the input view and the output view.ĭisplay instance and class data for a single object.ĭisplay a histogram of the resolution time of the recorded object. Provide the display function of the index map for a single object and "show the path to the garbage collection root directory". The heap walker has five views:ĭisplay distribution tree and distribution hotspot for all record objects. In JProfiler's Heap Walker, you can take a snapshot of the heap status and find objects of interest by selecting steps. For each hot spot, its tracking record tree can be displayed. You can mark the current value and display the difference value. Allocation hot spots Allocation hot spotsĭisplay a list, including methods, classes, packages, or J2EE components assigned to the selected class.You can mark the current value and display the difference value.ĭisplay a request tree or method, class, package, or J2EE component with annotated allocation information for the selected class. Shows the class or package of all recorded objects. All views have several aggregation layers and can display existing objects and objects that are garbage collected.ĭisplay class or package of all objects on the heap of status statistics and size information. The memory view part of JProfiler can provide a dynamic memory usage update view and a view that displays information about the memory allocation status. ![]() ![]() Recommended article: JProfiler Getting Started Tutorialįrom 5.1.2 and apply for a trial serial number
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