On Thu, Apr 28, 2011 at 04:29:42PM +0100, Steven Hartland wrote: > Try using a large buffer size on iperf and check the flow control options on > the switch. > > ----- Original Message ----- > From: "Adam Stylinski" <kungfujesu...@gmail.com> > Just using the default settings with iperf. Netblast is giving me similar > results. Disabling TCP checksum offloading (transmit > and receive) and large receive offload have zero effect. > > -- > Adam Stylinski > PGP Key: http://pohl.ececs.uc.edu/~adam/publickey.pub > Blog: http://technicallyliving.blogspot.com > > > > > ================================================ > This e.mail is private and confidential between Multiplay (UK) Ltd. and the > person or entity to whom it is addressed. In the event of misdirection, the > recipient is prohibited from using, copying, printing or otherwise > disseminating it or any information contained in it. > > In the event of misdirection, illegible or incomplete transmission please > telephone +44 845 868 1337 > or return the E.mail to postmas...@multiplay.co.uk. >
[adam@nasbox ~]$ iperf -m -w 1677216 -l1M -c 192.168.0.121 ------------------------------------------------------------ Client connecting to 192.168.0.121, TCP port 5001 TCP window size: 1.60 MByte (WARNING: requested 1.60 MByte) ------------------------------------------------------------ [ 3] local 192.168.0.60 port 24761 connected with 192.168.0.121 port 5001 [ ID] Interval Transfer Bandwidth [ 3] 0.0-10.0 sec 694 MBytes 581 Mbits/sec [ 3] MSS size 8192 bytes (MTU 8232 bytes, unknown interface) Switch is unmanaged, options are non-existent. -- Adam Stylinski PGP Key: http://pohl.ececs.uc.edu/~adam/publickey.pub Blog: http://technicallyliving.blogspot.com
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