check fastest mirror

[Jon South]

Jean Michel Bruenn wrote:
> This script uses netselect to determine the fastest available mirror. The main problem is, if a mirror is blocking traceroutes it's shown as slowest server, so it's possible that this tool writes that the fastest server is in the netherlands (if i live in germany and all german mirrors blocking traceroutes). On the other side, that's good - Cause it would use only working mirrors.

Your main problem is not blocked traceroutes, your problem is using 
traceroutes as your guage for the tests. Traceroute, pings, etc, are all 
low priority packets to routers, so using them as a basis for testing 
what is "the fastest" is just a terrible idea in the first place. This 
concept was discussed the last time it was brought up and it still has 
the same problem as before: it's just unreliable.

-Striker