Messages in this thread | | | Date | Wed, 02 Mar 2005 01:02:50 +0000 | From | Baruch Even <> | Subject | Re: Network speed Linux-2.6.10 |
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Paul Dickson wrote: > On Tue, 1 Mar 2005 14:29:24 -0500 (EST), linux-os wrote: >>Intel NIC e100 device driver. Two identical machines. >>Private network, no other devices. Connected using a Netgear switch. >>Test data is the same thing sent from memory on one machine >>to a discard server on another, using TCP/IP SOCK_STREAM. >> >>If I set both machines to auto-negotiation OFF and half duplex, >>I get about 9 to 9.5 megabytes/second across the private wire >>network. >> >>If I set one machine to full duplex and the other to half-duplex >>I get 10 to 11 megabytes/second transfer across the network, >>regardless of direction. >> >>If I set both machines to auto-negotiation OFF and full duplex, >>I get 300 to 400 kilobytes/second regardless of the direction. > > Might this be related to the broken BicTCP implementations in the 2.6.6+ > kernels? A fix was added around 2.6.11-rc3 or 4.
Unlikely, the problem with BIC would have shown itself only at high speeds over long latency links, not over a lan connection.
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