On Thu, Joe Little wrote: > Well, nfsstat I can do, and this is the pertinent section. Is this > high for getattrs and readdirplus?
Not in my opinion based on the workload you have described. The lookup counts are very low but that is replaced by the larger percentage of readdirplus (it is populating the name cache at the client). The getattr counts are large because of the number of files (client is doing a getattr at least for each file for NFS' close to open behavior). Spencer > Version 3: (323847 calls) > null getattr setattr lookup access readlink > 7 0% 177796 54% 1570 0% 2049 0% 37509 11% 5 0% > read write create mkdir symlink mknod > 32004 9% 47471 14% 351 0% 221 0% 5 0% 0 0% > remove rmdir rename link readdir readdirplus > 892 0% 49 0% 0 0% 0 0% 0 0% 22931 7% > fsstat fsinfo pathconf commit > 619 0% 16 0% 0 0% 352 0% > > > On 5/4/06, Matty <matty91 at gmail.com> wrote: > > > >On Thu, 4 May 2006, Joe Little wrote: > > > >> I'll try the nocto option. Our average file size (I believe) is in the > >> low K's -- perhaps between 1K-8K. An example where this gets really > >> slow is a prof with untarred versions of every linux kernel release > >> for source code analysis. It processes these directories about 2K/sec. > >> I will confess to not knowing how to measure latency. I haven't > >> observed the issue with UFS, but I haven't been trying much since UFS > >> doesn't interest me as much. That said, our UFS only Solaris 9/10 > >> machines haven't had this issue. > > > >I have found tcptrace, snoop -vv, and the DTrae profile and io providers > >invaluable for putting together data flow diagrams with latency > >measurements. There is also some useful information in nfsstat, which > >might help you better understand activity on the client and server. > > > >Hope this helps, > >- Ryan > >-- > >UNIX Administrator > >http://daemons.net/~matty > >_______________________________________________ > >nfs-discuss mailing list > >nfs-discuss at opensolaris.org > > > _______________________________________________ > dtrace-discuss mailing list > dtrace-discuss at opensolaris.org
