GNU bug report logs - #64712
29.0.92; Emacs 29 with native compilation compiles cl-loaddefs.el on every startup

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Message #59 received at 64712 <at> debbugs.gnu.org (full text, mbox):

From: Dmitry Gutov <dmitry <at> gutov.dev>
To: Eli Zaretskii <eliz <at> gnu.org>, Stefan Kangas <stefankangas <at> gmail.com>
Cc: acorallo <at> gnu.org, stephen.molitor <at> icloud.com, 64712 <at> debbugs.gnu.org
Subject: Re: bug#64712: 29.0.92; Emacs 29 with native compilation compiles
 cl-loaddefs.el on every startup
Date: Wed, 6 Sep 2023 15:26:20 +0300

On 03/09/2023 08:15, Eli Zaretskii wrote:
>> I personally can't see that it would make much of a difference if we
>> have them or not, but maybe I'm missing something.
> If nothing else, it will slow down startup (because each .eln files
> needs to be loaded via dlopen, as opposed to .elc that is dumped into
> the pdumper file), albeit insignificantly.  But if we do this with all
> the autoload files we have, that could slow down in a more tangible
> ways.  So basically we have here two minor annoyances: you can solve
> one, but then you "gain" the other one.

So you suppose

  - Findinb .eln in its load path
  - dlopen-ing it

can be slower than

  - Looking for .eln in its load path, not finding it
  - Extracting cl-loaddefs.el from cl-loaddefs.el.gz
  - Loading it

?

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