decreasing cache misses through good design

Question

How to decrease the number of possible cache misses when designing a C++ program?

Does inlining functions help every time? or is it good only when the program is CPU

Answer 1

Allow CPU to prefetch data efficiently. For example you can decrease number cache misses processing multi-dimensional arrays by rows rather than by columns, unroll loops etc.

This kind of optimization depends on hardware architecture, so you better use some kind of platform-specific profiler like Intel VTune to detect possible problems with cache.