Henrik Johansen wrote: > [Dai Ngo] wrote: >> Henrik Johansen wrote: >>> Henrik Johansen wrote: >>>> Piyush Shivam wrote: >>>>> On 08/05/09 15:53, Henrik Johansen wrote: >>>>>> Hi list, >>>>>> >>>>>> I have 2 servers which are directly connected via ixgbe based >>>>>> nics, both >>>>>> running OpenSolaris 2009.06. >>>>>> >>>>>> The actual network connection seems fine, iperf reports ~6.3 >>>>>> Gbits/sec >>>>>> in terms of throughput and nicstat seems to agree that the nics >>>>>> are ~63% >>>>>> utilized. >>>>>> Iperf : henrik at opensolaris:~# ./iperf-2.0.4/src/iperf -c >>>>>> 10.10.10.2 -N -t 40 >>>>>> ------------------------------------------------------------ >>>>>> Client connecting to 10.10.10.2, TCP port 5001 >>>>>> TCP window size: 391 KByte (default) >>>>>> ------------------------------------------------------------ >> Can you verify the TCP window size on both client and server system >> with this command: >> >> # ndd -get /dev/tcp tcp_xmit_hiwat >> >> # ndd -get /dev/tcp tcp_recv_hiwat > > Both client and server have both set to 400000. > Can you try 1024000, this is the default in snv_119. Did you verify the new setting take effect on NFS connections?
-Dai
