Hi, Does anyone know how a download manager searches for mirror sites of a file ? Does the web-server provide something here ?
Cheers. Arnaud Legout wrote: > Hi, > > Matthew Kaufman wrote: >> David Barrett wrote: >>> Wow, very interesting. I can see the value of downloading in >>> parallel from >>> multiple mirrors... >> I can't. Assuming they're all servers with public IP addresses and >> reasonable outbound bandwidth, having each client load-balanced to a >> single specific server and downloading over a single TCP stream is >> more efficient for the network -- and provides better download >> performance for the user -- than having multiple TCP streams fight >> over the same congestion-limited download pipe. >> >> The only reason to download from multiple sources simultaneously is >> the case where upstream capacity of serving nodes is a small fraction >> of downstream capacity (see: P2P filesharing network where the files >> are only present on ADSL or cable modem connected user machines), and >> thus there'd be no way to fill the download pipe otherwise. > > For the ones interested in, there is this excellent article that > evaluate parallel download strategies: > P. Rodriguez, W. Ernst Biersack., "*Dynamic Parallel-Access to > Replicated Content in the Internet*". /In IEEE/Transactions on > Networking, August 2002 (Also in IEEE/Infocom 2000) > > http://research.microsoft.com/~pablo/paraload.aspx > > Arnaud. > / > _______________________________________________ > p2p-hackers mailing list > p2p-hackers@lists.zooko.com > http://lists.zooko.com/mailman/listinfo/p2p-hackers _______________________________________________ p2p-hackers mailing list p2p-hackers@lists.zooko.com http://lists.zooko.com/mailman/listinfo/p2p-hackers