Chapter 11. Compiler Performance Tuning

One technique for improving performance in executable code is optimization at compile and link time. Compiler optimization creates machine code that is more efficient for each source file compiled. A source file is often referred to as a unit of compilation. Link time optimization can create more efficient programs because the scope of optimization spans multiple compilation units. Here are the topics covered in this chapter:

  • Compilers and Optimization

  • Optimization Levels

  • Compiling for a Target Environment

  • Finer Control Over Optimization

  • Trap Handling Options

  • Linker Optimizations

  • Profile-Based Optimization

  • Specific Options for Fortran and COBOL

  • Why Does Optimization “Break” Applications?

  • Debugging Optimization ...

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