Establishing a Performance Baseline

To set a performance baseline for the improvements that follow in this tutorial, build your project with these settings:

  1. Select Project > Properties. The project property pages window appears.

  2. Select Configuration Properties > C/C++ > Optimization .

  3. For Optimization, select Minimum size from the dropdown list.

  4. For Configuration Properties > C/C++ > Optimization [Intel C++] > Interprocedural Optimization, select No.

  5. Select Configuration Properties > C/C++ > Language [Intel C++].

    For Enable C99 Support, select Yes.

  6. Select Configuration Properties > C/C++ > Code Generation .

    For Floating Point Model, select Fast (/fp:fast).

    The /fp:fast option sets the compiler to aggressively optimize floating point arithmetic operations. Using the /fp:precise or /fp:strict options may limit opportunities for auto vectorization.

  7. Rebuild the project, then run the executable (Debug > Start Without Debugging). Record the execution time reported in the output. This is the baseline against which subsequent improvements will be measured.