>> Is NFS using TCP in your environment? If it is, you haven't ruled out >> network yet. > > NFS is using TCP, but, as my local sysadmin suggested, I mounted the same > NFS share using the UDP protocol, and the performance is equivalent to the > TCP mount. So it's not UDP per se.
I doubt, in that case, that it's UDP. >> - It's not an OpenAFS version problem. I upgraded from 1.4.6 to 1.4.10 >> with no resulting improvement in the performance. (I didn't do a clean >> install - and I'm going to try that - but I don't have much confidence that >> that will have any effect.) >> >> I doubt it will, though what's in /var/db/openafs/etc/config/afsd.options? > > I did the clean install, and the problem persists. > > I don't have an afsd.options file, but I do have afs.conf. Here's the > OPTIONS value: > > OPTIONS="-afsdb -stat 2000 -dcache 800 -daemons 3 -volumes 70 -dynroot > -fakestat -all" > > It's most likely the default. > >> - It's not a new server problem. My research computing admin tells me that >> nothing has changed in the AFS configuration in the last month except that >> they moved some volumes from one machine to another, but I can't believe >> that would make any difference, since they're both on the same subnet and >> neither of them is a machine directly listed in CellServDB. >> - It MIGHT be a Mac OS problem. I upgraded to 10.5.7 about a month ago, >> and it's possible that the new behavior coincided with the install, although >> it's unlikely. >> >> from what? > > Upgraded from 10.5.6. > > Another tidbit that is either hopelessly banal because I don't understand > how AFS works, or really important: WRITING to the same AFS directory works > fine. I copy the file from the directory to my local disk and it takes 4 > minutes; I delete the file from the remote disk and write it there from my > local disk and it takes 30 seconds. The questions I'd first ask are -is anti-virus in play? -is VPN in play? And the first suggestion for gathering further information: edit the OPTIONS in afs.conf to enable memcache (-memcache) and see if the performance changes. -- Derrick _______________________________________________ OpenAFS-info mailing list [email protected] https://lists.openafs.org/mailman/listinfo/openafs-info
