Look here for some useful information. http://www.csm.ornl.gov/~dunigan/net100/ On Wed, 2005-06-22 at 13:37 -0400, Bill Davidsen wrote: > I'm trying to find some better docs on getting throughput up on a high > latency link. I have multiple machines, and the local link runs at > ~7500kB/s all the time. The remote runs about half that on the same > hardware. The docs I googled are all over five years old, and may be > incomplete for current kernels. > > I increased memory sizes in net/core/*mem* and rmem-* wmem_* in ipv4, as > well as changing the thp_adv_win_scale. Looking at the traces, it > appears that the number of packets in flight are increasing, but the > throughput is still low. > > Any pointers, examples of working changes, or thoughts would be helpful. > -- Lawrence MacIntyre 865.574.8696 macintyrelp@xxxxxxxx Oak Ridge National Laboratory Cyber Security and Information Infrastructure Research Group AKO: lawrence.macintyre@xxxxxxxxxxx SIPRNet: macintyrelp@xxxxxxxxxxxxxxxxx - : 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