sh with monitoring information according to the original Tomcat startup script. Jprofiler will generate a new Jprofiler startup scripts named startup_jprofiler. We need to download the host Tomcat scripts to the local and select the script here. Select the application server to monitor, and this example selects tomcat 8.x.Ĥ) Local or remote: Select the Jprofiler application to monitor local or remote servers, if remote, is also need to install the same version of Jprofiler with the client on the remote host.Ħ) Start up mode: chapter 3.1 has introduced it.ħ) Enter the IP of the remote server that you need to monitor.Ĩ) Configure the Jprofiler installation directory on the remote server. Example: Create a project to monitor remote Tomcat (Profile at startup :wait for a connection from Jprofiler GUI)ġ) Double click Jprofiler?start to run it.Ģ) Select : profile an application server, locally or remotely JPROFILER_HOME=/var/lib/jprofiler9/bin/linux-圆4Įxport LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$JPROFILER_HOME 2. Download the corresponding version (for example: JProfiler 9.2)ġ) download installation package: jprofiler_windows-圆4_9_2.exeĢ) Extract it : tar -zxvf /var/lib/jprofiler_linux_9_2.tar.gz An example of installation and configuration Threads: This module is mainly used to monitor the running state of the management thread. CPU: The distribution and time of CPU consumption (CPU time or running time) Method execution diagram Method execution statistics (maximum, minimum, average running time, etc.)Į. Heap walker: The memory collected for a certain period of time is static analysis of information? include outgoing reference, incoming reference, biggest object, etc.ĭ. For example, the number of objects, the size, the method execution stack created by the object, the hot spot created by the object.Ĭ. Live memory: Information about class/class instance. Telemetries: Tendency view of heap, thread, GC, CPU load, classesī. Here’s what the JProfiler’s GUI looks like:Ī. Triggers: usually use in offline mode, tell JProfiler Agent when to trigger what behavior to collect the specified information. Offline profiling: the third option in the pictureģ.2 Session settings: A.Prepare for profiling: the second option in the picture.Profile at startup: the first option in the picture below.Attach mode: JProfiler agent can be loaded directly into a running JVM.Important concept of JProfiler 3.1 start up mode JProfiler GUI Render present the final display effect.ģ.JProfiler GUI Socket returns the information received to the JProfiler GUI Render.The JProfiler Agent saves the collected information to memory in a certain rule.For example: the life cycle of a thread The lifecycle of the JVM The life cycle of classes The life cycle of an object instance Real-time information on heap memory, and so on.JVMTI collects information about the current JVM based on registered events.
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