On Mon, 8 Apr 2013 19:11:24 +0300 (EEST) [email protected] wrote:
> thank you for your responses. Before going through them in detail, I > would just like to make a reality check. What kind of performance > figures should one expect from an averagely working afs network > (LAN/WAN)? Say, if you would duplicate roughly the 2000 files/300MB > directory in your setup, what kind of rates do you get? That is, is > 500-1000KB/s a reasonable starting point for optimization, not a > magnitude or two higher? That's not a transfer rate you need to "just accept"; I'm not sure if I've seen a transfer rate that slow to the local machine. If you want an example from unix... on an underpowered VM with no tuning: $ find jukka -type f -print | wc -l 2000 $ du -sh jukka 305M jukka $ time rsync -a jukka /afs/.localcell/lenny-1/foo3/jukka real 0m18.777s user 0m0.660s sys 0m3.244s $ time rsync -a 300mfile /afs/.localcell/lenny-1/foo3/300mfile real 0m11.219s user 0m0.416s sys 0m3.196s $ time rsync -a 300mfile 300mfile.2 real 0m5.435s user 0m0.872s sys 0m1.424s That's still pretty slow, but faster than what you mentioned (16 MiB/s, 27 MiB/s, and 56 MiB/s). That's also a terrible benchmark since it's only one trial and there are a million variables... but if you just wanted an example, there is one. -- Andrew Deason [email protected] _______________________________________________ OpenAFS-info mailing list [email protected] https://lists.openafs.org/mailman/listinfo/openafs-info
