Hi, I have been running some performance tests on spamc/spamd and I wanted to make sure my results were consistent with expected performance. All tests were run on: Dual 2.8 Ghz Xeon (4 logical CPUs) box w/2GB RAM Redhat 8.0, Spam Assassin 2.60 I've been using the spamc/spamd combination. I'm not using any of the rbl checks for my testing, e.g. razor. When processing a 56937 byte mail message composed of HTML text, I'm able to process around 3.3 messages a second (or 186,985 bytes/second) at 100% cpu utilization (all 4 logical cpus maxed out). An 11k HTML message processes at 11.7 messages per second (or 131,488 bytes/second) at 80% CPU utilization. A 4K plain text message processes at 13.2 messages per second (60,003 bytes/second) at 70% CPU utilization. FYI: I have a modified spamc app that is multithreaded to hammer spamd. Throughput varied by less than 3% if spamc/spamd were on the same box or a different boxes. Does this performance appear reasonable? Does anyone have metrics that they can share? Additionally has anyone tried profiling spamd? perl -T -d:DProf /usr/bin/spamd errors out. Unfortunately I only have about 8 weeks worth of perl experience over the last 5 years, so I haven't been able to investigate the profiling problems. Any thoughts on spamc/spamd performance are greatly appreciated. My local.cf file is: # SpamAssassin config file for version 2.5x # generated by http://www.yrex.com/spam/spamconfig.php (version 1.01) # How many hits before a message is considered spam. required_hits 5.0 # Whether to change the subject of suspected spam rewrite_subject 0 # Text to prepend to subject if rewrite_subject is used subject_tag *****SPAM***** # Encapsulate spam in an attachment report_safe 1 # Use terse version of the spam report use_terse_report 0 # Enable the Bayes system use_bayes 1 # Enable Bayes auto-learning auto_learn 1 # Enable or disable network checks skip_rbl_checks 1 use_razor2 0 use_dcc 0 use_pyzor 0 # Mail using languages used in these country codes will not be marked # as being possibly spam in a foreign language. ok_languages all # Mail using locales used in these country codes will not be marked # as being possibly spam in a foreign language. ok_locales all Thanks in advance, -Chesley
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