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Re: topological closeness....
On Mon, 13 May 1996, Vadim Antonov wrote: > Pinging all addresses may be worse than just talking to > a random server. Heuristics again. You don't really want to pick the *BEST* server, you want to avoid the *WORST* server and if you track response times and choose the server randomly (sort of) then you already know which ones are the worst. Just add some sort of weighting that makes a poorly responding server less and less likely to be chosen. Then when you get a good response from it, slowly bring the weighting back to normal. Maybe have some sort of TTL on the weighting as well. > To make any meaningful measurement > you need to send many dozens of probe packets. Incidentally, > that is about as much as the average WWW exchange takes. Yep. And the WWW exchange provides all the measurements you should need. > PS I would also be sceptical about attempts to > "try" such things as perpetuum mobile or > palm reading just on the chance that they may > work. Palm reading is just a hash function that nature uses to make sure we don't all rush to the same side of the boat :-) Michael Dillon Voice: +1-604-546-8022 Memra Software Inc. Fax: +1-604-546-3049 http://www.memra.com E-mail: [email protected] - - - - - - - - - - - - - - - - -