API Support

Intel® VTune™ Profiler supports the JIT (Just-In-Time) API.

The JIT (Just-In-Time) Profiling API provides functionality to report information about just-in-time generated code that can be used by performance tools. You must insert JIT Profiling API calls in the code generator to report information before JIT-compiled code goes to execution. This information is collected at runtime and used by tools like Intel® VTune™ Profiler to display performance metrics associated with JIT-compiled code.

Note

Starting with VTune 2025.4, the Instrumentation and Tracing Technology (ITT) API is maintained as open source components and no longer part of VTune Profiler support. To access the source code, submit issues, or contribute, visit the GitHub* repository.