On Thu, 3 Mar 2005 02:20:36 -0800 (PST) sai narasimhamurthy <sai_narasi@xxxxxxxxx> wrote: > Hi, > I just do not understand why the throughputs indicated > by IPERF on a GBE LAN is so very low!!! I am speaking > of throughputs around 50-100 Mb/s!! I understand all > the optimizations of jumbo frames(I have max'd it!) > and large windows etc(which shouldnt actually matter > in a LAN since the RTTs are so very low) . The two > machines I am working on are not even 10 meters > away!!!:)) > > My iSCSI application is heavily hampered by TCP. I am > working with the 2.6.10 kernel..(has any one faced low > throughputs in a GBE with 2.6.10? let me know ) . > > I would be very happy to push the TCP throughput to > around 600-700 Mb/s atleast. any suggestions? > > Thanks > Sai I get 800-900 Mbits/sec using iperf on 64 bit PCI hardware (E1000, skge, tg3). Less on 32 bit PCI hardware because of bus limitations. - : send the line "unsubscribe linux-net" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
