From: Eric S Fraga <e.fraga@ucl.ac.uk>
To: ding@gnus.org
Subject: Re: Experimental new Maildir backend
Date: Sun, 17 Jan 2021 19:17:00 +0000 [thread overview]
Message-ID: <87im7v8jbn.fsf@ucl.ac.uk> (raw)
In-Reply-To: <875z3w9nhm.fsf@ericabrahamsen.net>
On Saturday, 16 Jan 2021 at 20:49, Eric Abrahamsen wrote:
> I've been toying with the idea of using sqlite as a store for Gnus'
> caches and data: it seems like that would get us the biggest speedup
> possible.
This sounds interesting.
I used to use nnmaildir all the time, primarily because I frequently
access my emails from three different devices which I keep in sync using
unison. The maildir format is ideal for this as there is no chance of
conflict arising if I forget to sync any given device.
However, the performance of the current nnmaildir is atrocious in such a
scenario because the time stamp on the .overview file (I believe -- it's
been a while since I did the analysis) leads to the whole mailbox being
scanned again to build up the numerical indices used by gnus. The scan
is O(n^3) which becomes intractable when you have 1000s of emails in the
mailbox.
Anything that enables quick scanning/updating of the index for maildir
groups would be a major improvement.
--
Eric S Fraga via Emacs 28.0.50 & org 9.4.4 on Debian bullseye/sid
next prev parent reply other threads:[~2021-01-17 19:17 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-16 18:47 Juan José García-Ripoll
2021-01-17 4:49 ` Eric Abrahamsen
2021-01-17 9:01 ` Juan José García-Ripoll
2021-01-17 21:33 ` Eric Abrahamsen
2021-01-18 9:39 ` Juan José García-Ripoll
2021-01-17 19:17 ` Eric S Fraga [this message]
2021-01-17 22:23 ` Eric Abrahamsen
2021-01-18 11:14 ` Eric S Fraga
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