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Author Topic: Slow local FTP transfer on A1200  (Read 2071 times)

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Offline Ilwrath

Re: Slow local FTP transfer on A1200
« on: May 27, 2008, 02:34:21 PM »
@pkillo-

Quote
ftp will 'speed up' in the initial stages of transferring a large file... so if you're sending a bunch of directories and small files, see if you can join the files into an archive before transferring. (This is a result of the design of the tcp protocol iirc..)


Well, there are some specifications of TCP that control packet size, the transfer window, and whatnot, but you're probably not too likely to be running into those being a limiting factor.  

FTP itself, on the other hand, negotiates a new connection for each file it transfers, and then closes that connection when the file is complete.  Not a big deal if you're transferring a handful of large files.  But, if there's a bunch of little files, that will be a bunch of overhead.  Many newer FTP clients attempt to compensate by opening a few connections at once, figuring that at least one should be transferring at any given time.  If AmiFTP wasn't configured to do this, or the 68030 couldn't push enough bytes around to do this....  That could be an additional performance hit.