Re: One sucky thing in KDE... kmail!

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Re: One sucky thing in KDE... kmail!
by Jason Clinton on Monday 02/Jan/2006, @18:56

Easy fix. Just move the SPAM handling to the very end of the filtering chain so that it only runs the mail through the spam filter if it doesn't match anything else. And then put a duplicate of the spam hander at the very top of the filter list so that the analyzed spam doesn't go through the entire list again.

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Re: One sucky thing in KDE... kmail!
by Mike on Tuesday 03/Jan/2006, @00:27

Sorry, i dont get it. Put the same spam filter on top and on bottom of filter list??

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Re: One sucky thing in KDE... kmail!
by Anonymous on Wednesday 04/Jan/2006, @15:33

Uh. Did you read what I wrote?

If it was spam handling that was the problem - it would take linearly longer time. It doesn't.

1. message is filtered fast (less than a second).
10. messages is filtered fast (less than a couple of seconds).
100. messages is filtered pretty fast (say, ten seconds).
1000. messages is getting slow - say 3 minutes.
7000. messages is VERY, VERY slow. Processing the first 400 took 15 minutes(!)

So, to filter one week of email - if I've been on a vacation, I basically select the messages in bunches of about 1000 - and filter them in the background while doing other work. That gets the work done fast enough. Filtering them by selecting all and then starting to filter just doesn't work fast at all.

There seems to be an O(n^2) algorithm or something in there, instead of an O(n) algorithm - which it should be. It's only noticeable on large bunches of email - which I'm unfortunate to get at work.

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Re: One sucky thing in KDE... kmail!
by Zak Jensen on Sunday 08/Jan/2006, @13:38

Chances are your filters are configured incorrectly. If you use complicated filters & don't set distinct points to stop processing, then your mail can potentially go through the list several times. This *may* be what is wrong. If not, I encourage you to submit a wish for further optimization via http://bugs.kde.org/

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