ITT API open source version

By Kirill Rogozhin,

Published:11/06/2019   Last Updated:01/15/2013

The Instrumentation and Tracing Technology (ITT) API enables your application to generate and control the collection of trace data during its execution.

ITT API that is described in this article is intended for use with Intel® VTune™ Amplifier. ITT API provides the following capabilities:

  • Enable user to control collection
  • Enable user to set marks during the execution of the specific code
  • Enable user to mark frames and tasks
  • Enable user to profile runtime generated code (also referred to as Just-In-Time code)
  • Enable user to specify custom synchronization primitives implemented without standard system APIs
  • Supports applications in C/C++ environments
  • User applications/modules linked to the static user API library do not have a runtime dependency on a dynamic library. Therefore, they can be executed without VTune Amplifier or other Intel Parallel Studio XE tools.

Please refer to VTune Amplifier documentation for more details about using ITT API.

Source code of ITT API (open source version) can be found here:

Product and Performance Information


Intel's compilers may or may not optimize to the same degree for non-Intel microprocessors for optimizations that are not unique to Intel microprocessors. These optimizations include SSE2, SSE3, and SSSE3 instruction sets and other optimizations. Intel does not guarantee the availability, functionality, or effectiveness of any optimization on microprocessors not manufactured by Intel. Microprocessor-dependent optimizations in this product are intended for use with Intel microprocessors. Certain optimizations not specific to Intel microarchitecture are reserved for Intel microprocessors. Please refer to the applicable product User and Reference Guides for more information regarding the specific instruction sets covered by this notice.

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