GNU bug report logs - #78340
[PATCH] New option for comp *.eln file name by the file timestamp of *.el

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From: Lynn Winebarger <owinebar <at> gmail.com>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: sunlin7 <at> hotmail.com, acorallo <at> gnu.org, 78340 <at> debbugs.gnu.org
Subject: bug#78340: [PATCH] New option for comp *.eln file name by the file timestamp of *.el
Date: Mon, 12 May 2025 09:18:02 -0400

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On Mon, May 12, 2025, 9:07 AM Lynn Winebarger <owinebar <at> gmail.com> wrote:

> On Mon, May 12, 2025 at 8:16 AM Eli Zaretskii <eliz <at> gnu.org> wrote:
> >
> > > From: Lynn Winebarger <owinebar <at> gmail.com>
> > > Date: Mon, 12 May 2025 08:02:56 -0400
> > > Cc: Andrea Corallo <acorallo <at> gnu.org>, sunlin7 <at> hotmail.com,
> 78340 <at> debbugs.gnu.org
> > >
> > > If he has that many packages, his load path has hundreds of entries,
> and any preloaded library will look in
> > > every one before finding it in the last entry ...
> >
> > Maybe so, but that's a separate problem.  The patch submitted in this
> > bug was to shortcut the hashing of the source *.el files, not to avoid
> > searching the extra directories.
> >
> > If the number of directories is the issue, then my suggestion is not
> > to compile packages AOT, which AFAIU will cause all the *.eln files to
> > be written to a single subdirectory of the eln-cache (after
> > compiling them the first time each one is loaded).  But that is a
> > separate issue which IMO should be discussed with Stefan and Philip,
> > because it's related to how third-party packages are installed and
> > compiled.
>
> It's not the AOT that's the issue, it's the search for the source file
> to compute the content hash.  But otherwise, you're right, it's a
> general issue with package management.
>

That being said, a profile of the startup (without the patch) would be the
best way to tell where the issue is.
Probably should have led with that.

Lynn

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