Hi all, The connection setup and machines used are same as in: http://lists.dragonflybsd.org/pipermail/users/2013-February/053184.html
Two types of NICs are tested. The kernel is @a86cc10 (INVARIANTS enabled). Bidirectional IP forwarding is tested (18B UDP datagrams). Idle time is also listed in the result. ====================== Broadcom BCM5719 (bnx(4)), which is 4 ports. Each port support 4 RX and 4 TX queues; all are enabled. MSI-X mode: Normal mode, interrupt rate is ~12500/s, forwarding @5.35Mpps, less than 10% idle time on each HT Fast mode, interrupt rate is ~12500/s, forwarding @5.35Mpps, ~35% idle time on each HT Polling @10000Hz, burst max 150: Normal mode, forwarding @5.02Mpps, ~10% idle time on each HT Fast mode, forwarding @5.32Mpps, ~35% idle time on each HT Polling @6000Hz, burst max 250: Normal mode, forwarding @4.70Mpps, ~15%-20% idle time on each HT Fast mode, forwarding @5.08Mpps, ~40%-50% idle time on each HT ====================== Intel 82580 (igb(4)), which is 4 ports. Each port support 8 RX and 8 TX queues; all are enabled. MSI-X mode: Normal mode, interrupt rate is ~15000/s, forwarding @4.50Mpps, less than 5% idle time on each HT Fast mode, interrupt rate is ~20000/s, forwarding @5.50Mpps, less the 10% idle time on each HT Polling @10000Hz, burst max 150: Normal mode, forwarding @4.67Mpps, ~10% idle time on each HT Fast mode, forwarding @5.50Mpps, ~10% idle time on each HT Polling @6000Hz, burst max 250 (This improves a little bit since 2013 Feb): Normal mode, forwarding @4.67Mpps, ~10% idle time on each HT Fast mode, forwarding @5.76Mpps, ~10% idle time on each HT Best Regards, sephe -- Tomorrow Will Never Die
