I recently attached a Solaris 10 8/07 client (6900 with ce gigbit interface) to our NFS server which runs RHEL 5.5 (kernel 2.6.18-194.el5). Performance typically is good running around 25-50MB/s but sometimes seemingly without reason the performance drops to abysmal levels and will stay like that until NFS is unmounted and remounted. I have tested this after hours when there is no load on either server, no traffic on the network and using a 1GB test file. Our other 300 Linux clients have no performance issues, I have ruled out network issues by isolating the server to a switch dedicated to it and an additional port on the NFS server and the tests I performed were with the file cache in memory. $ time cp /var/tmp/1g.TEST.new /mnt/ real 25m1.456s user 0m0.276s sys 0m6.699s After an unmount, wait 5 minutes and remount: $ time cp /var/tmp/1g.TEST.new /mnt/ real 0m26.767s user 0m0.277s sys 0m6.589s Mount options I am using on Solaris: Flags: vers=3,proto=tcp,sec=none,hard,intr,link,symlink,acl,rsize=32768,wsize=32768,retrans=5,timeo=600 Attr cache: acregmin=120,acregmax=120,acdirmin=120,acdirmax=120 -- 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
