Subject: Re: bug#78340: [PATCH] New option for comp *.eln file name by the file timestamp of *.el

From: Eli Zaretskii <[email-masked]>
Date: Mon, 12 May 2025 16:32:56 +0300

> From: Lynn Winebarger <[email-masked]>
> Date: Mon, 12 May 2025 09:07:06 -0400
> Cc: [email-masked], [email-masked], [email-masked]
> 
> On Mon, May 12, 2025 at 8:16 AM Eli Zaretskii <[email-masked]> wrote:
> >
> > > From: Lynn Winebarger <[email-masked]>
> > > Date: Mon, 12 May 2025 08:02:56 -0400
> > > Cc: Andrea Corallo <[email-masked]>, [email-masked], [email-masked]
> > >
> > > 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.

Then the time I measured includes that, for the preloaded packages.