Bogofilter tuning ?

[David Relson]

On Sun, 18 Sep 2005 22:09:25 +0200
Dominique VOLPE wrote:

> Hello,
> 
> Since a few months we had Bogofilter installed on an old OS Sun Solaris 
> server.
> 
> Now, I want replace this gateway by a new and more powerfull Redhat 
> Enterprise 3 server.
> 
> Are there some particular tuning parameters to set up for Redhat servers 
> compared to Solaris ?
> 
> Are there parameters in connection with the power of the machine (CPU 
> speed, memory)?
> 
> Thank you
> 
> Dominique

H'lo Dominique,

No.  There are no tuning parameters to adjust for different machine
architectures or speeds.  All bogofilter's parameters are oriented
towards its scoring algorithms.

After you've been using bogofilter for a while, you may decide that
different spam and ham cutoff values would lessen the number of
messages rated "Unsure".  When you get to that point you might want to
run bogotune to have it find values of bogofilter's scoring parameters
to optimize performance for _your_ site.  For best results, read
bogotune's man page and have at least 5000 each of ham and spam for the
tuning process.  It's good to use even more messages for tuning.

HTH,

David

P.S.  As I re-read the above, I realize that there is 1 parameter that
might help if you have a large wordlist and a heavy load.  The
parameter is "db_cachesize" and helps optimize BerkeleyDB performance.
For a wordlist of N megabytes, a reasonable value for db_cachesize is
1/3*N.