JPROFILER COST MANUAL
ManualTriggeredSettings This configuration will be used if a manual profile is requested. Uses the profile.jfc jfc configuration that ships with JFR.
If you wish to provide a custom profile configuration, alter the memoryTriggeredSettings, and cpuTriggeredSettings to provide the path to a.
JPROFILER COST DOWNLOAD
From that screen the profile can be downloaded, once download the JFR recording file can be opened and analyzed within a tool of your choosing, for example JDK Mission Control (JMC).Ĭonfiguration of the profiler triggering settings, such as thresholds and profiling periods, are set within the ApplicationInsights UI under the Performance, Profiler, Triggers UI as described in Installation.Īdditionally, many parameters can be configured using environment variables and the applicationinsights.json configuration file.
When a profile has been triggered and completed, it will be viewable from theĪpplication Insights instance within the Performance -> Profiler section. Configuring this will have no effect.Īfter these steps have been completed, the agent will monitor the resource usage of your process and trigger a profile when the threshold is exceeded. The Java profiler does not support the "Sampling" trigger. The following steps will guide you through enabling the profiling component on the agent and configuring resource limits that will trigger a profile if breached.Ĭonfigure the resource thresholds that will cause a profile to be collected:īrowse to the Performance -> Profiler section of the Application Insights instance.Ĭonfigure the required CPU and Memory thresholds and select Apply.
The Tenured regions occupancy is above 691 mb after collection.In this scenario, a profile will occur in the following circumstances: Your threshold was set via the user interface to 75%, therefore your threshold would be 75% of 922 mb, 691 mb.Therefore the maximum possible size of tenured would be 922 mb.The Tenured Generation could grow to 90% of the heap.The Java heap could grow to a maximum of 1024 mb.The maximum size of the tenured region is the size it would be if the JVMs' heap grew to its maximum size.įor instance, take the following scenario: Occupancy is evaluated after a tenured collection has been performed. Memory percentage is the current Tenured memory region (OldGen) occupancy against the maximum possible size of the region. CPUĬPU threshold is a percentage of the usage of all available cores on the system.Īs an example, if one core of an eight core machine were saturated the CPU percentage would be considered 12.5%. If you wish to disable profiling later on, you can do so within the trigger menu shown in Installation. When your application breaches those SLAs, Application Insights will gather Java profiles. Invoking Profile now will enable the profiler feature, and Application Insights will apply default CPU and memory SLA triggers.
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