It seems that sence my average file is going to be so much larger than
what has been assumed I will also be able to serve a much larger
amount of data than is generally referenced in most of the docs and
during the install scripts for the givin rvm sizes.  Is this true?
Also is there any way that I would be able to check how much of the
rvm is being used so that I can better tweek these sizes in the
future.

also during the install the install script mentioned that for
primarily read only files systems it may actually be better to use
files for the log and rvm, is this still considerd true?

On Thu, 9 Sep 2004 14:14:43 -0500, Brian Finney <y0gi636_at_gmail.com> wrote:
> Thanks for all the help
> 
> right now I'm doin a general update and will start seting up coda tonight
> 
> Brian
> 
> 
> 
> 
> On Thu, 9 Sep 2004 12:08:18 -0400, Jan Harkes <jaharkes_at_cs.cmu.edu> wrote:
> > On Thu, Sep 09, 2004 at 04:31:21AM -0500, Brian Finney wrote:
> > > curios what is considered to be the current max size for the venus cache
> >
> > As far as the amount of data is concerned, probably about as much as
> > your harddrive can handle. The limiting factor is the number of files.
> > More files mean that we need more memory to store the metadata, we need
> > more CPU time to scan for possible replacements, and it takes longerto
> > revalidate the cache after a disconnection.
> >
> > Now there is this estimated formula built into venus that assumes that
> > a typical user has an average file size of 24KB, about 4 files per
> > directory, 256 files in a volume, etc. So with the default ratios, the
> > cache probably shouldn't be larger than several hundred megabytes.
> > 200MB is approximately 8000 files and requires only about 20MB of RVM.
> > I've heard several reports that 500MB caches (20000 files) can
> > sometimes suffer from considerable stalls, so memory doesn't really
> > seem to be the limiting factor here.
> >
> > However...
> > > I'm wanting to try coda starting with using it between my laptop and
> > > server, primarily for use with collections of movies, mp3s, and other
> > > files that would easily surpass these limits, and then if every thing
> >
> > Your average filesize is several orders higher than our assumed
> > 24KB/file. So it would make sense to tweak some of the values in
> > /etc/coda/venus.conf.
> >
> > cacheblocks=10000000 # 10 GB cache
> > cachefiles=10000     # 10k files
> > cml_entries=40000    # 4 log entries per file.
> > hoard_entries=1000   # I 'think' this should be enough :)
> >
> > (I really should change the cml_entries and hoard entries defaults to be
> > relative to the # of cachefiles and not the # of cacheblocks...)
> >
> > Jan
> >
> >
>