Skip site navigation (1)Skip section navigation (2)
Date:      Fri, 15 Dec 2006 18:33:39 -0800
From:      Jeremy Chadwick <koitsu@FreeBSD.org>
To:        Kimi Ostro <kimimeister@gmail.com>
Cc:        freebsd-stable@freebsd.org
Subject:   Re: Poor NFS performance after recent update
Message-ID:  <20061216023339.GA61400@icarus.home.lan>
In-Reply-To: <42b497160612151821pe66b9ado6650372cf935a7f5@mail.gmail.com>
References:  <42b497160612142042g32003891j9330b930622c8e64@mail.gmail.com> <42b497160612151630h4a0afaccma728285480c41d25@mail.gmail.com> <20061216011552.GA60198@icarus.home.lan> <42b497160612151744y32b3cfe5n6d95c78c391e328a@mail.gmail.com> <42b497160612151821pe66b9ado6650372cf935a7f5@mail.gmail.com>

next in thread | previous in thread | raw e-mail | index | archive | help
On Sat, Dec 16, 2006 at 02:21:53AM +0000, Kimi Ostro wrote:
> Okay, this is getting stranger. transferring data between 8 machines
> on my network which are all running FreeBSD as having this problem,
> yet I cans download iso file off the internet at over 100KB/s.

Try transfers in different directions.  Example:

root@machineAA$ scp -p root@machineBB:/dev/urandom /tmp/urandom
root@machineAA$ scp -p /dev/urandom root@machineBB:/tmp/urandom

Also try the same from machineBB:

root@machineBB$ scp -p root@machineAA:/dev/urandom /tmp/urandom
root@machineBB$ scp -p /dev/urandom root@machineAA:/tmp/urandom

Do you see slow LAN transfer speeds when only receiving data vs.
sending data?  If so, chances are it's a duplex problem, and you
should either adjust some settings in ifconfig_fxp0 in rc.conf to
try and work around it (try forcing media 100baseTX mediaopt
full-duplex rather than using autonegotiate), or try a different
switch.

-- 
| Jeremy Chadwick                                 jdc at parodius.com |
| Parodius Networking                        http://www.parodius.com/ |
| UNIX Systems Administrator                   Mountain View, CA, USA |
| Making life hard for others since 1977.               PGP: 4BD6C0CB |




Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20061216023339.GA61400>