The Old New Thing

Low-tech usability testing

My pal Jason Moore discusses using paper prototypes as a fast way to get usability feedback. I found it interesting that by going low-tech, you actually get better feedback, because people are more willing to criticize a paper model than running code. (And another advantage of the paper model is that you can make changes ...

Stupid memory-mapping tricks

Shared memory is not just for sharing memory with other processes. It also lets you share memory with yourself in sneaky ways. For example, this sample program (all error checking and cleanup deleted for expository purposes) shows how you can map the same shared memory into two locations ...