Michael, > I've replaced my old mailserver with a quadcore xeon, > 4gb RAM and LSILOGIC SAS Raid. With this step I switched bayes > from DB_File to MySQL. > Switchover was easygoing, and the CPU usage is 4 times > lower with the new machine, but I can see a huge increase > with iowait and the normal system load. When working on 3 mails > at the same time %wa in top raises up to 30%!!! Shutting down amavisd-new > reduce it to 0 - 4. I've checked everything: > - amavis in ramdisk > - bayes with db_file again > - bayes with innodb or myisam > - bayes completely off > - turned off RBLs
For starters, make sure the syslogd does not sync on every write to postfix and amavis log files (on Linux a '-' needs to be prepended to filenames in syslog.conf). Next try iostat and vmstat, watch for disk activity, swapping, ... Mark ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ AMaViS-user mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/amavis-user AMaViS-FAQ:http://www.amavis.org/amavis-faq.php3 AMaViS-HowTos:http://www.amavis.org/howto/
