On 4/19/08, MK wrote: > At 17:59 18.04.2008, you wrote: > >What is your hardware like and how many $max_servers are you running? > > $max_servers=15 > > its a dual xeon, 2gb, scsi hw-raid (10.000 u/m) > i dont think it is a hw issue ... like said CPU load is at 40% avg. > > >If you run amavisd-new at $log_level = 2; for a minute or so, you will > >get some TIMING data that will show that 95% of the time spent is on > >spamassassin scanning. SA is CPU intensive and queries many external > >network resources (RBLs etc.), so additionally it is subject to high > >delays. A local caching DNS server helps here. > > ah ... i will investigate in DNS lookups... > > >If other resources like > >Razor, Pyzor and DCC are utilized, > > no. > > >you can expect further delays > >(mostly from Pyzor - especially if using the default server). There > >have been a few posts looking for the same type info, like this one > >for example: > > > >http://marc.info/?l=amavis-user&m=120283445607760 > > > >It would be cool if someone were to take the time to create a document > >outlining all the ways that SA could be performance tuned. There seems > >to be an increasing need. > > > >On a powerful system with a lot of $max_servers running, eventually > >one may reach the point where the disks can't keep up. > > is it just the amavids $max-servers ? > i switched it from 10 to 15 - showing no effect at all... > shouldn't sendmail/amavisd-milter/clamd be configured alike? >
Did you adjust amavisd-milter (the -m switch) so amavis is actually receiving messages on all children? http://amavisd-milter.sourceforge.net/amavisd-milter.html You can test by running amavisd-nanny. I don't know sendmail, so I don't know if anything to needs to be adjusted there. BTW, 10 to 15 sounds close to the correct range on a 2GB machine. > noticed that the number of processed messages is constant at > approx 1-2 messages per second (which is NOT that much, i think). > CPU load is avrg 40%. Is the machine keeping up with mail traffic, or no? I mean, are you receiving 1-2 messages per second, and all the messages are accepted and delivered after a short delay - or is there a big delay when trying to connect to your machine (longer than the expected time it takes amavisd-new to process a message - which is probably anywhere from 2 to 12 seconds on your hardware)? What do the TIMING entries show? > regards > > MK > -- Gary V ------------------------------------------------------------------------- This SF.net email is sponsored by the 2008 JavaOne(SM) Conference Don't miss this year's exciting event. There's still time to save $100. Use priority code J8TL2D2. http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone _______________________________________________ AMaViS-user mailing list AMaViS-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/amavis-user AMaViS-FAQ:http://www.amavis.org/amavis-faq.php3 AMaViS-HowTos:http://www.amavis.org/howto/
