Date: Fri, 20 Mar 1998 10:31:40 -0600 (CST) From: Kevin Day <toasty@home.dragondata.com> To: ckempf@enigami.com (Cory Kempf) Cc: freebsd-current@FreeBSD.ORG Subject: Re: Pathetic FTP performance Message-ID: <199803201631.KAA00555@home.dragondata.com> In-Reply-To: <v04003a05b1383e8bab45@[208.140.182.45]> from Cory Kempf at "Mar 20, 98 10:57:30 am"
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> I am getting really pathetic FTP performance across my LAN. From any > machine to any other machine, I am seeing several hundred k / sec via FTP. > E.g. from my Mac to my SGI, I see between 300k/s - 1M/s, depending on file > size. > > However, when I am running FreeBSD (-Current as of 12 March), I am getting > really pathetic performance... on the order of 0-2 k / second. > > The network is 10baseT, My ethernet is the intel EtherExpress Pro 10/100B > rev 0x02 that is built into the DK440LX motherboard. The net is almost > completely unloaded, so it isn't traffic. > > Running ping generally has a transit time of just under 1 ms, although I am > seeing 4% packet loss (2 packets out of 40). > > Generally, what I am seeing is both low transfer rates as well as *LOTS* of > stalling. > > Any suggestions what is causing this, and how to diagnose / fix it? > > Thanks, > > +C > > I saw something similar when I upgraded from a 2.1 kernel to 2.2.5 here... What I see now is a *flood* of traffic (putting the ethernet at 100%) with nearily 50% collisions, then a long stall, then it picks back up, and flood the ethernet again. With a 2.1 kernel I saw a nice steady stream... I've been unable to find what change prompted this. :) Kevin To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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