The Instrumentation and Tracing Technology API (ITT API) provided by the

Intel®

VTune™

Profiler

enables your application to generate and control the collection of trace data during its execution.

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 need to 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.