Hi, Jesse and List, We have a different problem on the dual-port CX4 10GE card. Would you please advise?
On a single 10GE link, we tuned and got netperf 9.4Gb/s (with 1500 MTU) and ~9.9Gb/s with jumbo frame. But when running netperf tcp traffic to the two 10GE links on the card at the same time, we still got only ~10Gb/s of throughput on the two links summed up. The 10GE card is installed on a PCIe gen-1 x8 slot so we were expecting something close to bus speed of 2GB/s = 16Gbps. What's the expected aggregated throughput on the two 10GE ports on the same card? Our testing environment: - Linux 2.6.23 kernel; - 5~10 iperf/netperf threads generating TCP traffic from 2 individual clients; Both direct connect and from a switch were tested. - 8 receive queues on 10GE server side; Interrupt affinity masks were 0xff so interrupts are evenly load-balanced to multiple cpus. Observed interrupt rate was not high and cpus had enough idle cycles. Please let me know if more info is needed. Thanks, -Yanping ------------------------------------------------------------------------------ Crystal Reports - New Free Runtime and 30 Day Trial Check out the new simplified licensign option that enables unlimited royalty-free distribution of the report engine for externally facing server and web deployment. http://p.sf.net/sfu/businessobjects _______________________________________________ E1000-devel mailing list E1000-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/e1000-devel
