The situation where browser vendors create browsers benchmarks isn't healthy. And SunSpider is a total joke at this point, full of toy programs and microbenchmarks that have been optimized to death, so I'm disappointed that JetStream is including most of it.

(For example, did you know that every major JS engine now has a daylight savings offset cache, something which is entirely useless for any real code, but substantially speeds up the date benchmarks in SunSpider? Bleh.)

The state of C/C++/Fortran benchmarking has been much better -- not perfect, but much better -- for years, thanks to the SPEC benchmarks, which are created by an independent company that invites submissions for real-world programs that are suitable for benchmarks.

I wish there was something similar for JavaScript and HTML, though the fact that you have to pay for copies of the SPEC benchmarks isn't good.