This is pretty old and the title should reflect that. The versions of the software used are ancient by many people's standards: Linux 2.6.24 (released six years ago, in January 2008), ext2 file system (ext3 was introduced in the 2.4 series, seven years before that kernel release), gcc 4.2.4 (also 2008, 4.2 series is from 2007), cmake 2.4.7 (2007). Overall it seems like these undated measurements were performed in early 2008, nearly six years ago. A lot has changed since then and I don't see how this article in its current form should still be relevant today.
I take note that I should put a date on the page!
I actually ran again some of these benchmarks again over the years (last time about one years ago), on the same hardware and updated software, and results didn't change significantly.
FWIW, at the time these results were first published, I had my working dir on ext2 because it had higher performance than ext3.
