Im aware of udp protocol problems.. I've tested network throughput and responsivity for udp/tcp several different ways, and it's dandy.
Ok I'll do a few straced rsync's and we'll see what happens :) On Tue, Jun 25, 2013 at 1:59 PM, Andrew Deason <[email protected]>wrote: > On Tue, 25 Jun 2013 13:49:06 -0700 > Timothy Balcer <[email protected]> wrote: > > > So, this means that there is no networkly or I/O reason on the > > destination or source that could be the culprit particularly. > > That's not necessarily true; even discarding the issues with Rx (the > transport protocol AFS uses), some networking issues can be UDP-only, > which would affect AFS but not straight rsync. You may find that very > unlikely, and I certainly try not to jump straight to that conclusion > right away, but it has happened before. > > > Im running an fstrace right now, but as you said, its very cryptic. > > Yeah, I meant that for an fstrace you'd need to give it to an openafs > developer (give it to me, or to the list, or whatever). That would > contain filenames and volume names, but not file data. > > > Are you suggesting I run an strace on the rsync process? Or that I > > attach a strace to all the afs background daemons? > > Just strace the rsync process. Just to see if we're slow on, say, > open/write/close, or something you may not expect, like lstat or > getdents or something. That would also tell you if a specific file is > slower than all of the others. Before we can look at what it is within > AFS that's making things so slow, it would help to know what operation > is actually being slow. > > Obviously if you share the raw strace output with someone, that would > contain path names and a little bit of the file data. I was intending > for you to look at that and see if anything is unusual, or just report > what seems "slow". > > -- > Andrew Deason > [email protected] > > _______________________________________________ > OpenAFS-info mailing list > [email protected] > https://lists.openafs.org/mailman/listinfo/openafs-info > -- Timothy Balcer / IT Services Telmate / San Francisco, CA Direct / (415) 300-4313 Customer Service / (800) 205-5510
