I mentioned this about a year ago, but now that people are starting to
write rulesets with hundreds to thousands of new rules, I thought I'd
bring it up again.

How happy are people with the performance of SA, especially with all
of thee new rules? The reason I ask is that I'm on-again, off-again
working on a new automata based regexp matching engine and I want to
know if it would be one of those things that anybody else might care
about.

An automata based regexp engine is one that can compile a set of
regular expressionns down into an automata, then run the automata. The
advantage this has is that it can match any number of regexps with no
loss in performance. I previous prototype I had could match 200
regexps taken from SA about a thousand times faster than SA could
match them. Another scaling test with 5000 regexps was just as fast.

So my question is, when I finish the matching engine, if I finish it,
is there any interest in trying to use it to match spam? A year ago,
the consensus seemed to be that everyone was pretty much happy with
SA's performance. Its not fast, but it is fast enough. 

Is that still true?

Scott


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