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bug#50877: 28.0.50; Gnus: nnimap backend is extremely slow to initialise
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From: |
Lars Ingebrigtsen |
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Subject: |
bug#50877: 28.0.50; Gnus: nnimap backend is extremely slow to initialise new groups |
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Date: |
Wed, 29 Sep 2021 08:18:06 +0200 |
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User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) |
Eric Abrahamsen <eric@ericabrahamsen.net> writes:
> I'm cc'ing Lars and Stefan Kangas, who are the most "involved" here. The
> benchmarks are gruesome:
Yeah, sounds like that commit has to be reverted.
> Probably still worth a dedicated function for Gnus? (Or a rewrite of
> `seq-difference'...)
Rewriting it using the same trick that the Gnus version does (i.e., a
hash table) might be nice, but it does use more memory, so I'm not sure
that's a general solution. Perhaps there should be a separate version
of seq-difference.
--
(domestic pets only, the antidote for overdose, milk.)
bloggy blog: http://lars.ingebrigtsen.no