[Mimedefang] Scaling MIMEDefang / SA on Solaris
Clayton, Nik [IT]
nik.clayton at citigroup.com
Thu Apr 17 04:24:00 EDT 2003
> You absolutely *must* put /var/spool/MIMEDefang on a tmpfs on a busy
> Solaris server.
Probably worth putting that in to the FAQ. Similarly, you want your
sendmail queue directories to be on multiple disks -- either using
Sendmail's support for multiple queue directories, or, better, using
RAID (1+0 works nicely).
Here's some unscientific numbers. A dual CPU Sun V880 (750MHz CPUs) with
Sendmail + MIMEDefang + SpamAssassin can process about 10,000 messages
an hour. A quad CPU V800 (again, 750MHz CPUs) pushes that to about 23,000
messages per hour.
Of that, almost the entire overhead is SpamAssassin, typically taking
between 1 and 3 seconds to process a message.
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