[OpenAFS] Extremely poor write performance.

[Stephen Joyce]

On Thu, 16 Jan 2003, Neulinger, Nathan wrote:

> Alternatively, might be worth providing a set of afsfsperf binaries on
> the openafs or grand.central.org sites. Then it becomes much more
> reasonable to tell someone to "go run afsfsperf".

As someone with a healthy interest in AFS buy zero experience with arla,
that would be much appreciated.

Cheers,
Stephen
--
Stephen Joyce
Systems Administrator                                            P A N I C
Physics & Astronomy Department                         Physics & Astronomy
University of North Carolina at Chapel Hill         Network Infrastructure
voice: (919) 962-7214                                        and Computing
fax: (919) 962-0480                               http://www.panic.unc.edu

> > -----Original Message-----
> > From: Jimmy Engelbrecht [mailto:jimmy@e.kth.se]
> > Sent: Thursday, January 16, 2003 2:57 PM
> > To: Robin Yamaguchi
> > Cc: openafs-info@openafs.org
> > Subject: Re: [OpenAFS] Extremely poor write performance.
> >
> >
> > Robin Yamaguchi <rhy@physics.ucsb.edu> writes:
> >
> > > Hello All:
> > >
> > > I started working with openafs about a month ago, and i'm
> > having problems
> > > with write performance.  Please excuse any omitted
> > information that is
> > > important - i'm a newbie.  =)
> > >
> > > Here are some of the results from running bonnie++ (HD/filesystem
> > > benchmarker) on an afs directory:
> > >
> > >      ------Sequential Output------ --Sequential Input- --Random-
> > >      -Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--
> > > Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP  /sec %CP
> > > 496M  2351  24  2516   9   772   2  2793  25  3480   2  43.6   0
> > >      ------Sequential Create------ --------Random Create--------
> > >      -Create-- --Read--- -Delete-- -Create-- --Read--- -Delete--
> > > files  /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP /sec %CP
> > >   16   159  26  2013  82   198  18   162  28  1013  70   215  15
> >
> > I dont think bonnie is a relevant benchmark for network filesystem.
> >
> > Have you tried something like:
> >
> > 1) Extract a tarball
> > 2) compile a program
> >
> > Or maybe you should try the andrew benchmark, which is more
> > relvant but
> > very old.
> >
> > However if your are intressted in afs-performace-numbers you
> > can compare
> > with mine, statistics are done with afsfsparf from the
> > arla-package. This
> > is relevant when you test fileserver-performance, it does not
> > performancetests client-performace.
> >
> http://www.e.kth.se/~jimmy/afsfsperf/afsfsperf.html
>
> /Jimmy
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