On Fri, 2011-04-29 at 17:52 +0200, David McGiven wrote: > Chuck, > > Thank you very much for the advice. I'm currently using wsize and > rsize of 1024 to avoid IP fragmentation. Strangely, UDP performs much > faster compared to TCP, no matter the size of rsize/wsize. I am > puzzled about that, but ... > > The problem with the network troubleshoot is that I cannot change > anything in the path between the client and the server : 2 routers and > a CISCO PIX (I don't know if it's one of this 2 hops or it's > invisible, but it's there for sure). While researching this problem > I've noticed that iperf shows extremely slow speed from client to > server LAN segments, while in the opposite way the speed is ok. > There's definitely something wrong there but I cannot change it > neither complain, so, let UDP be it, I'm satisfied enough with the > speed I get with rsize/wsize=1024. My main concern was about data > corruption. Have you checked the autonegotiation settings on your NIC? 'ethtool eth0' is your friend... -- Trond Myklebust Linux NFS client maintainer NetApp Trond.Myklebust@xxxxxxxxxx www.netapp.com -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
