Problems while measuring performance

While browsing around StackOverflow I found a page about Square root function implementation. One of the answer points to an article containing different implementations of square root. One of the things I like to do is pointing out obvious errors in benchmarks. It’s not that I don’t have an intimate understanding of these things, but if I can point out the error, is has to be obvious. One of the obvious errors in time measurement can be shown using a short pseudo code example....

August 27, 2010