[Mimedefang] performance tuning tips

David F. Skoll dfs at roaringpenguin.com
Sat Mar 16 02:01:18 EST 2002

On Fri, 15 Mar 2002, John Coy wrote:

> I'm only using MDF for scanning viruses.  I'm using the
> message_contains_virus_nai() function to do this.

That's probably what eats up your CPU -- it forks and execs a process to
do the filtering.

What you need is a virus-scanner which stays resident in memory and
accepts scan requests over a socket or pipe.  I don't know if NAI
has this feature, but some commercial virus-scanners do.



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