Coding your application to improve performance

Optimizing your applications discusses the various compiler options that the XL C/C++ compiler provides for optimizing your code with minimal coding effort. If you want to take your application a step further, to complement and take the most advantage of compiler optimizations, the following sections discuss C and C++ programming techniques that can improve performance of your code:

• Finding faster input/output techniques
• Reducing function-call overhead
• Using delegating constructors (C++11)
• Using template explicit instantiation declarations (C++11)
• Managing memory efficiently
• Optimizing variables
• Manipulating strings efficiently
• Optimizing expressions and program logic
• Optimizing operations in 64-bit mode
• Tracing functions in your code
• Using rvalue references (C++11)
• Using visibility attributes (IBM extension)