On 4/18/08, MK <[EMAIL PROTECTED]> wrote: > hi list, > > i am trying to find out at which position of my mail-processing chain > the bottleneck is - or which parameter is maybe misconfigured... > > my setup is (each newest stable version) > sendmail <-> amavisd-milter <-> amavisd-new <-> clamd/spamassassin > > i 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%. > > anyone with a similar setup here to tell me the corresponding values > for "max_server"-like parameter for each station in the chain? > or how to dig for the bottleneck? > > thanks in advance > > MK >
What is your hardware like and how many $max_servers are you running? 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. If other resources like Razor, Pyzor and DCC are utilized, 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. -- 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/
