Someone recently submitted a PR about TCP based NFS being significantly slower under 4.X. I wonder if it could be related? http://www.freebsd.org/cgi/query-pr.cgi?pr=misc/32141 There is quite a lot of detail in the PR and the submitter has no trouble reproducing the problem.
For what it is worth i have exchanged mail with Alexander Haderer the author of the PR, and no, i have not seen nor reproduced his problem. I have done NFS exchanges between FreeBSD machines, and with Linux machines with NFS V3/TCP started by amd, since it was his problem, and all my speeds have been of the order of nominal speed (10 Mb/s and 100 Mb/s). On FreeBSD i am using FreeBSD 4.4-STABLE #0: Wed Oct 3 the NIC's are Intel 100 Mb/s 3Com 100 Mb/s and a D-Link 10 Mb/s on a laptop connected to a 3Com switch. No special tuning related to newreno. I have also downloaded a lot of things via ftp, locally and non locally and have observed no special slowing down. In particular i downloaded via ftp to a Linux box with a 100Mb/s 3Com card a whole 600Mb iso image at nominal wire speed. The Linux boxes run the latest RedHat. Here is also a ftp test to a Solaris box: 8727260 bytes received in 0.92 seconds (9275.56 Kbytes/s) As far as i can see always very correct speeds. This is extremely strange since Alexander Haderer was very aware of the half-duplex vs full-duplex issues and triple checked his installation. The only thing i have not checked is connection to a box running old version of FreeBSD, since i don't have one. -- Michel TALON To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-hackers" in the body of the message
