From: Lars Magne Ingebrigtsen <larsi@gnus.org>
To: Matthias Andree <ma@dt.e-technik.uni-dortmund.de>
Cc: ding@gnus.org
Subject: Re: pop3 speedup
Date: Mon, 26 Sep 2011 21:29:13 +0200 [thread overview]
Message-ID: <m3pqinw19y.fsf@stories.gnus.org> (raw)
In-Reply-To: <4E80CFAA.9050601@dt.e-technik.uni-dortmund.de> (Matthias Andree's message of "Mon, 26 Sep 2011 21:16:58 +0200")
Matthias Andree <ma@dt.e-technik.uni-dortmund.de> writes:
> _exponential_? How does an algorithm for POP3 mail fetching with such a
> complexity look like?
The old algorithm counted all the messages in the buffer from the start
repeatedly while waiting for them all to arrive. So if you fetched 1000
messages, it would typically first count 10 messages, then it would
count 20, then it would count 30, all the way up to 1000.
Hm. Is that exponential?
> I've seen various awkward cases in POP3 or IMAP clients as worse as
> O(n^2 * log n), but I can't possibly fancy how to attain O(e^n).
I know, I'm pretty awesome. :-)
--
(domestic pets only, the antidote for overdose, milk.)
bloggy blog http://lars.ingebrigtsen.no/
next prev parent reply other threads:[~2011-09-26 19:29 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-09-26 18:37 Lars Magne Ingebrigtsen
2011-09-26 19:16 ` Matthias Andree
2011-09-26 19:29 ` Lars Magne Ingebrigtsen [this message]
2011-09-26 19:34 ` Antoine Levitt
2011-09-26 19:35 ` Lars Magne Ingebrigtsen
2011-09-26 19:55 ` Antoine Levitt
2011-09-26 20:09 ` Matthias Andree
2011-09-26 20:01 ` Matthias Andree
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