NFS server and clients are connected with a single 3com 1700 giga switch. All machines are installed with broadcom giga network adapter. OS: Both sides are Red Hat AS 2.1 with updated kernel from Red Hat, 2.4.9-e.8 No other special configuration. NFS start and mount normally. But transfer speed is quite slow, only 200~300KB/s. ifconfig shows no erros, drops, overruns... I am sure it's not network problem, ftp, sftp, ftp runs normally and fast. I Have tried to: set rsize,wsize to 8k or 32k set sync, async set nfsvers=3 None of the above works. I think it's a Kernel problem
After upgrading kernel to 2.4.18-7, the problem was solved. Transfer speed bursts upto 40MB/s under mount option as: mount -o rw -o nfsvers=3 -o tcp -o hard -o async -o rsize=32768 -o wsize=32768
Lots of NFS performance work was done to AS2.1 over the past several kernel errata. Is this still a problem with the e.24 kernel? Larry Woodman
closing due to inactivity