Date: Wed, 07 May 1997 13:33:31 -0400 From: Shawn Carey <smc@servtech.com> To: freebsd-hackers@freebsd.org Subject: FTP Performance Message-ID: <3370BCEB.1CFBAE39@servtech.com>
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Hello, I have what seems to be a strange problem with FTP performance varying drastically between getting files from and putting files to my FreeBSD 2.2.1 FTP server. The machine is connected to my ISP with iijppp via a 28.8 modem. When I FTP to a remote server, receiving files come in reasonably at 3.5-4.0 K/sec. The same is true if someone FTP's to my system and puts a file. But when someone connects to my system and tries to get a file or if I FTP to a remote server and try to put a file, the performance is dismal (bytes/sec) and typically the transfer never even completes. In short, trying to get files out of my system, either by putting as a client or by being get'ed as a server doesn't work well at all. To make matters even stranger (or maybe not), all of these problems disappear if I only FTP to/from systems inside my ISP's routers. I have contacted them about this, and they claim that the problem lies with the systems I am trying to transfer files to/from. I could believe this if the throughput were roughly the same no matter which direction the bits were travelling. So I guess what I'm hoping to learn here is: a) Is there anything I can adjust to speed up outgoing FTP transfers? b) Is there any way I can prove or disprove my ISP's claim. I could probably prod them into action with hard evidence, but I don't know how to get it... Any suggestions are appreciated. Thanks, -Shawn Carey
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