Re: [AMaViS-user] why does amavisd-new suddenly slow down?

[Mark M. <Mar...@ij...>]

Fil,

| > FILTER effects all recipients of a multi-recipient message, but that 
| > shouldn't be a factor for this application.
| Yes, it's risk we can take, I suppose.

Btw, one way of diverting bounces somewhere else is to configure
Mailman to send its mail from a dedicated domain name (or host name),
which can for example be assigned an alias IP interface, and Postfix
can process/route returned mail differently.

| Are there any bechmarks somewhere? It seems that some people recommend to
| have a minimalist number, and others say that 20 per CPU is fine??

20 per CPU is probably safe if memory is not a limiting factor.

I am usually recommending to start with less, and increase as needed,
as long as some gain in throughput is MEASURABLE. By stepwise increasing
the number of processes one notices more clearly when the machine
starts to behave erratically. By starting with too many processes
and experiencing problems, it is difficult to guess if the problem is
inherent (e.g. RBL, DNS, Bayes problems), or the machine is thrashing.

  Mark