A better type of benchmark is the more realistic stuff TechEmpower does, but they only test web frameworks, not OSes.
"The bargraph game is lame."
edit: To expand on this, there is/was one person who tried to tackle this in a meaningful way.
[1] https://web.archive.org/web/20070607182125/http://www.coyote...
The bitrotten remains of this can be found here: [2] https://github.com/Acovea/libacovea
I'm aware of academic research regarding HPC and superoptimizing, but no one has applied that to generalized distro testing, so far. (At least not in public.)
I think this should be a hook in some reproducible build system.
But everyboody seems to have caved in against the complexity explosion this would involve. And build times.
OpenOffice, Firefox, Chrome, KDE, Gnome....the HORROR!
Why is that a problem? From a 3rd benchmark point of view testing the official tarball is the most relevant point to test for a Linux using audience. Different distros has different patches. Some don't even patch the software.