Yes, the fact is that these settings do not work. Perhaps these can only be set via ndd.
> ScottWilliamson writes: > > set ndd:tcp_naglim_def=1 > > set ndd:udp_recv_hiwat=4000000 Also after recalculation of the bandwidth delay product the value of *_[recv/xmit]_hiwat is an order of magnitude too high, so I have reduced them to 400000. > Where is the 'ndd' module in the Solaris kernel? Do > these settings > actually work? > > > The output of intrstat shows that the ixgb > interrupts are always landing on the same cpu. Does > anyone have any tips to help tune this link for > higher transfer speeds and if/how to tune the ixgb > interrupt moderation and/or type as well as the ring > buffers for this card? > > There are a handful of parameters that can be set in > /kernel/drv/ixgb.conf to tune behavior, but I'd > suggest first going > back to the person who gave you that rather large > list of /etc/system > tunables, and ask whether they're correct for the > systems you have. > > They look suspicious to me. I have tried measurements with netperf (rather than netcat) and see acceptiable results, I now suspect that netcat is not the best way to send a stream. Recv Send Send Socket Socket Message Elapsed Size Size Size Time Throughput bytes bytes bytes secs. 10^9bits/sec 400000 400000 400000 10.52 5.40 This message posted from opensolaris.org _______________________________________________ networking-discuss mailing list [email protected]
