How to configure profiling for JVM applications

Perforator is able to profile JVM application. This guide shows how to configure Perforator and application to get meaningful profiles.

Warning

For now, JVM support is experimental and has known limitations. It will be improved in the future releases.

Prerequisites

Add the following flag to the JVM process

-XX:+PreserveFramePointer

Additionally, add the following environment variable to the JVM process

__PERFORATOR_ENABLE_PERFMAP=java=true,percentage=50

See reference for configuration options.

Add the following options to the top level of the agent configuration

{
    "enable_perf_map": true,
    "enable_perf_maps_jvm": true
}

After that, restart the agent.