>> 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).
I'm sending all my logs to a remote syslog server :( > Next try iostat and vmstat, watch for disk activity, swapping, ... I'll have a look at it, thanks! Michael ------------------------------------------------------------------------- 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/
