Intel® VTune™ Amplifier supports two kinds of APIs:
The instrumentation and tracing technology (ITT) APIs provided by the Intel® VTune™Amplifier enable 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™ Amplifier to display performance metrics associated with JIT-compiled code.