Date: Fri, 4 Mar 2005 18:43:43 -0500 (EST) From: Charles Sprickman <spork@fasttrackmonkey.com> To: Darcy Buskermolen <darcy@wavefire.com> Cc: freebsd-net@freebsd.org Subject: Re: FreeBSD 4.x and OS-X tcp performance Message-ID: <Pine.OSX.4.61.0503041841060.5816@oof.local> In-Reply-To: <200503041526.05432.darcy@wavefire.com> References: <Pine.OSX.4.61.0503041726460.5816@oof.local> <200503041526.05432.darcy@wavefire.com>
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On Fri, 4 Mar 2005, Darcy Buskermolen wrote: > On Friday 04 March 2005 14:34, Charles Sprickman wrote: >> Howdy, >> >> Sorry to bring what seems like a simple issue up here. I had been blaming >> slow afp filesharing between my OS-X (10.3.8 and previous) and FreeBSD 4.x >> boxes on netatalk's afp implementation for some time. Not too long ago I >> got frustrated with this and tried smb and then ftp. On a simple 10/100 >> network, and even with just a crossover between two boxes it seems that >> any tcp transfer tops out at around 250KB/s. >> >> On the same network using the same switch I can get near line-rate to an >> OpenBSD box and to another OS-X box. >> >> If I use nfs and force udp as the transport, I *do* get near line-rate >> between OS-X and FBSD. >> >> My 5.3 box is tanked at the moment, so I cannot tell if the problem >> happens there as well. I do have a full ADC account, so I will be testing >> with the latest Tiger preview shortly, and the ADC access does give me a >> decent bug reporting facility if the fault lies within the OS-X tcp stack. >> >> I'm no tcpdump wizard, would anyone care to help me track this down? > > I'd start with ensureing your nic's media options are properly set (I've seen > this exact behavior during duplex mismatches) Yep, I wouldn't have come here without checking all the basics. I should also add that given three machines in my standard config I get the following results which will also help rule out cabling/speed/duplex issues: os-x <-> obsd - good os-x <-> fbsd - bad obsd <-> fbsd - good os-x <-> os-x - good Charles >> Thanks, >> >> Charles >> _______________________________________________ >> freebsd-net@freebsd.org mailing list >> http://lists.freebsd.org/mailman/listinfo/freebsd-net >> To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org" >
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