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[Spamassassin Wiki] Update of "FasterPerformance" by PeterGervai
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The following page has been changed by PeterGervai:
http://wiki.apache.org/spamassassin/FasterPerformance

The comment on the change is:
Some data on measured delays of network tests

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See OutOfMemoryProblems. Much of the advice applies for CPU-bound machines, too.

+ == Network related ==
+
+ If you are UsingNetworkTests, install a local DNS server (BIND named, for example) on the same host to cache responses, and set the /etc/resolv.conf file to use that instead of one on another machine. See CachingNameserver.
+
+ External network tests often take long time (compared to a non-network installation). See UsingNetworkTests for general hints.
+
+ * Pyzor (see UsingPyzor) tests seem to be one of the most time consuming: it may raise scanning time by more than 10 seconds per check.
+ * DCC (see UsingDcc) may add 3-5 seconds to testing time.
+