[OpenAFS] OpenAFS directory update is SLOW. Performance tuning?

Noel Burton-Krahn noel@burton-krahn.com
Thu, 21 Mar 2002 13:42:56 -0800


Hi,

So, I've got AFS set up serving from my Linux box to my WinXP client.
Great.  I moved my home directory to AFS.  Then I did a "cvs update" in one
of my project directories now under AFS.  S-L-O-W!  AFS was about 12x sloser
than a "cvs update" on a local disk.  Is there some way to improve that?

It took 1.5 minutes to update on AFS, 7 seconds off local disk.  The
directory I did my "cvs update" in has 13022 files and 1220 directories.  My
AFS client was configured with Cache Size: 200000, Chunk Size: 32kb, Status
Cache: 10000 entries.

That kind of slowdown is just too much.  This might be the end of AFS for
us.  Is there any way to improve that?

--Noel



----- Original Message -----
From: "Hartmut Reuter" <hwr@rzg.mpg.de>
To: "Dong Fangpeng" <fpdong@ict.ac.cn>
Cc: <openafs-info@openafs.org>
Sent: Monday, March 18, 2002 7:10 AM
Subject: Re: [OpenAFS] Help!


> On Mon, 18 Mar 2002, Dong Fangpeng wrote:
>
> > hello:
> > It seems that installing AFS is a hard work for me, so I have to ask for
help again! The situation is :
> >
> > I started BOS by " ./bosserver -noauth &" and then input
> > "./bos setcellname dfp.linux.ict.ac.cn dfp.linux.ict.ac.cn -noauth" to
name my cell,
> > "./bos listhost dfp.linux.ict.ac.cn" returned following:
> >
> >
> >    Cell name is dfp.linux.ict.ac.cn
> >         Host 1 is dfp.linux.ict.ac.cn
> >
> >  "./bos status dfp.linux.ict.ac.cn " told me the kaserver, buserver and
vlserver running normally
> > but when I input "./bos create ...."commands,following error returned:
> >
> >  "bos:could not find entry (can't find cell 'dfp.linux.ict.ac.cn' in
cell database)"
> >
> > The content of file CellSVDB in /usr/afs/etc/ is :
> >
> >     >dfp.linux.ict.ac.cn   #Cell name
> >     192.168.1.27         #dfp.linxu.ict.ac.cn
>
> The klog command is a client command which uses /usr/vice/etc/CellServDB
> to find the database servers of the cell. Probably this one doesn't
> contain your new cell.
>
> Hartmut
>
>
>
> >
> > Then what's the problem, and what should I do?
> >
> > Thanks for any answer!
> >
> > Fangpeng Dong
> >
> > ICT of CAS
> > phone: 86-010-62565533-9313/9310
> >
>
> -----------------------------------------------------------------
> Hartmut Reuter                           e-mail reuter@rzg.mpg.de
>    phone +49-89-3299-1328
> RZG (Rechenzentrum Garching)               fax   +49-89-3299-1301
> Computing Center of the Max-Planck-Gesellschaft (MPG) and the
> Institut fuer Plasmaphysik (IPP)
> -----------------------------------------------------------------
>
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