Hi, That's normal. Every packet that you send, has a tcp-header. So you can only send 92Mbit of data. If you used udp, you would get a throughput around 94Mbit. Best, Wouter -----Original Message----- From: Cheng Kwok Wing, William [mailto:wing328@xxxxxxxxx] Sent: donderdag 27 maart 2003 18:29 To: LARTC Subject: [LARTC] Question on degraded performance of NIC Hi, I've got a 100Mbit NIC and used iperf and netperf to test them. The measured throughput is around 92Mbit. My question is what causes the degrade in performance?? Overhead in packets?? CPU clock speed(My desktop uses P3-500MHz)?? Best, William __________________________________________________ Do you Yahoo!? Yahoo! Platinum - Watch CBS' NCAA March Madness, live on your desktop! http://platinum.yahoo.com _______________________________________________ LARTC mailing list / LARTC@xxxxxxxxxxxxxxx http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/