Just to throw in another data point. Here is that FTP done between an IBM S80 and an M80, both with GB interfaces:
ftp> put "|dd if=/dev/zero bs=32k count=10000" /dev/null 200 PORT command successful. 150 Opening data connection for /dev/null. 10000+0 records in. 10000+0 records out. 226 Transfer complete. 327680000 bytes sent in 13.25 seconds (2.414e+04 Kbytes/s) local: |dd if=/dev/zero bs=32k count=10000 remote: /dev/null Ben -----Original Message----- From: Christoph Pilgram [mailto:[EMAIL PROTECTED]] Sent: Wednesday, July 24, 2002 5:43 AM To: [EMAIL PROTECTED] Subject: AW: Gigabit Ethernet Performance Hi Thomas, I tried it on my machines (AIX 4.3.3 H80) this is what I got : ftp> put "|dd if=/dev/zero bs=32k count=10000" /dev/null 200 PORT command successful. 150 Opening data connection for /dev/null. 10000+0 records in. 10000+0 records out. 226 Transfer complete. 327680000 bytes sent in 16,33 seconds (1,959e+04 Kbytes/s) local: |dd if=/dev/zero bs=32k count=10000 remote: /dev/null Best wishes Chris > -----Ursprüngliche Nachricht----- > Von: Rupp Thomas (Illwerke) [SMTP:[EMAIL PROTECTED]] > Gesendet am: Dienstag, 23. Juli 2002 18:51 > An: [EMAIL PROTECTED] > Betreff: Gigabit Ethernet Performance > > Hi TSM-ers, > > our newly installed Gigabit Ethernet seems to have some performance > problems. > When I do the following FTP command between two UNIX (AIX) machines I only > get about 8Megabyte per second. > > # ftp 10.135.11.55 > Name: adminrt > Password: > ftp> put "|dd if=/dev/zero bs=32k count=10000" /dev/null > 200 PORT command successful. > 150 Opening data connection for /dev/null. > 10000+0 records in. > 10000+0 records out. > 226 Transfer complete. > 327680000 bytes sent in 39.5 seconds (8102 Kbytes/s) > local: |dd if=/dev/zero bs=32k count=10000 remote: /dev/null > > This command transfers data from nowhere to nowhere so no disk > is involved. The performance numbers only include network, network > adapter, > TCP/IP and a bit of UNIX. > Do you think 8MB/s is OK for Gigabit Ethernet? > Would anyone be so kind and test this command in their own UNIX > environment > and tell me the numbers? > > Thanks in advance and greetings from Austria > Thomas Rupp > Vorarlberger Illwerke AG > MAIL: [EMAIL PROTECTED] > TEL: ++43/5574/4991-251 > FAX: ++43/5574/4991-820-8251 > > > > -------------------------------------------------------------------------- > ---------------- > Dieses eMail wurde auf Viren geprueft. > > Vorarlberger Illwerke AG > -------------------------------------------------------------------------- > ----------------