Otávio, > I'm tuning a mail server with amavisd-new (clamd and spamassassin), > and I have a strange low cpu usage (almost 90% free) and a high load > average (around 100), my amavis timing logs show me a high levels of > "fwd-mail-from" ... how I can get better amavisd-new performance ? > > Logs: > Mar 7 19:06:58 sm3300 amavis[20603]: (20603-07) TIMING [total > 10558 ms] - SMTP LHLO: 4 (0%)0, SMTP pre-MAIL: 1 (0%)0, SMTP > pre-DATA-flush: 2 (0%)0, SMTP DATA: 82 (1%)1, body_digest: 1 (0%)1, > gen_mail_id: 0 (0%)1, mime_decode: 11 (0%)1, get-file-type1: 20 (0%)1, > decompose_part: 5 (0%)1, parts_decode: 0 (0%)1, spam-wb-list: 4 (0%)1, > update_cache: 1 (0%)1, decide_mail_destiny: 1 (0%)1, fwd-connect: 11 > (0%)1, fwd-mail-from: 10027 (95%)96, fwd-rcpt-to: 2 (0%)96, > fwd-data-cmd: 0 (0%)96, write-header: 1 (0%)96, fwd-data-contents: 4 > (0%)96, fwd-data-end: 372 (4%)100, fwd-rundown: 1 (0%)100, > prepare-dsn: 0 (0%)100, main_log_entry: 7 (0%)100, update_snmp: 1 > (0%)100, unlink-1-files: 1 (0%)100, rundown: 0 (0%)100
The fwd-mail-from state indicates the MAIL FROM smtp command was sent from amavisd to MTA, and took 10 seconds for the MTA to respond. Probably MTA is doing some sender verification or DNS lookup or perhaps a RBL ckeck during that time. The MTA on a re-entry port should avoid doing its checks again, these have all (hopefully) been done by the MTA-RX during mail reception. In MTA-TX it is too late to feel sorry and considering whether to accept the message or not. Also any load limitations must be disabled on MTA-TX. See README.sendmail-dual for some ideas. Mark ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ 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/
