I think for small MTU sizes you will see better performance with IPoIB in datagram mode.
Boris Shpolyansky Sr. Member of Technical Staff, Applications Mellanox Technologies Inc. 350 Oakmead Parkway, Suite 100 Sunnyvale, CA 94085 Tel.: (408) 916 0014 Fax: (408) 585 0314 Cell: (408) 834 9365 www.mellanox.com -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Benjamin M. McClelland Sent: Monday, March 09, 2009 4:19 PM To: [email protected] Subject: [ofa-general] ipoib performanec at smaller mtu I was curious what other people are seeing for 1500 mtu performance on ipoib. Current tests are showing that I get about 150-175MB/s no matter how many streams. If I go up to higher mtu, then performance significantly increases. Due to the storage network that this ib is routing to, we are currently limited to 1500 mtu. ofed 1.4.1, connected mode, dual opteron dual core 1.8GHz, Mellanox Technologies MT25418 [ConnectX IB DDR, PCIe 2.0 2.5GT/s] (rev a0) fw 2.6.000, voltaire sm on switch lro disabled, send_queue_size=256 thanks, -Ben _______________________________________________ general mailing list [email protected] http://lists.openfabrics.org/cgi-bin/mailman/listinfo/general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general _______________________________________________ general mailing list [email protected] http://lists.openfabrics.org/cgi-bin/mailman/listinfo/general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general
