Date: Wed, 7 Apr 1999 13:17:35 -0700 (PDT) From: Suresh Rajagopalan <sraja@cinenet.net> To: freebsd-isp@freebsd.org Subject: NFS slowness on 100 LAN Message-ID: <Pine.GSO.3.95.990407130455.9027A-100000@hollywood.cinenet.net>
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I am seeing very slow response over NFS between a 3.1 client and Solaris
X86 NFS server, with both NIC's set to 100M-FD. Writing a 2MB file takes
30 seconds.
Some data points:
1. The NIC card is a 3COM, and the ifconfig options are set to use
"media 100BaseT mediaopt full-duplex"
2. Mount options set to tcp, nfsv3. (udp or nfsv2 don't work either and
cause system hangs).
3. If the 3.1 client is slowed down to 10MB-FD, then writing the same
file much faster, a typical response of under 1 second.
4. The same slow behaviour is seen when accessing a FreeBSD NFS server,
(although this is a 2.2.6 box).
5. The switch is a 3COM Superswitch, with ports forced to 10FD or 100FD,
depending on the machine (autonegotiate is off).
Attempting this with a Intel Pro100 shows the same behaviour.
Thanks for any help,
Suresh
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