In the process of submitting an article to http://workshop.perl.pt/2008 about Parrot, we felt the urge to do some simple benchmarking, to have a glimpse of Parrot's current performance.
First, the facts:
1) We created a very dumb algorithm (intentionally not efficient) to calculate how may prime numbers exist between 1 and a given argument.
2) We implemented this algorithm in several well know interpreted languages, in Parrot of course, and also in C and Java to have a bottom line to draw comparisons. Basically we only used whiles and ifs and tried to make all implementations as similar as possible.
3) We run every program (unfortunately on a slow machine) several times, incrementing the argument in steps of 10000, from 10000 to 90000, and watched has they took more and more time to run.
Finally, check the results: http://nrc.homelinux.org/parrot/primes.png.