Anyone have input here? Harald or one of the other performance tuners? -----Original Message----- From: Dan Grigsby [mailto:dan@xxxxxxxxxxxxxx] On Behalf Of dan-lists.netfilter.org@xxxxxxxxxxxxxx Sent: Saturday, December 11, 2004 5:08 PM To: 'netfilter@xxxxxxxxxxxxxxxxxxx' Subject: Best performance: 2 cards, one on each PCI-X bus, 2 cards on one PCI-X bus, or a single card with two interfaces? Hello, I have been sifting the archives to come up with hardware to give me the best performance. I read Harald's threads surrounding the performance of dual Opteron system and am building a box based on those specs (fast memory, NAPI, 32bit kernel, etc.). Here's my question: My motherboard has two 133Mhz PCI-X busses. For best performance should I (1) put one card on each bus, (2) put two cards on one bus, or (3) use a single card with two interfaces? I appreciate the advice. Best regards, Dan