GNU bug report logs - #65908
29.1.50; Emacs 29 regresses on macOS

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From: Gerd Möllmann <gerd.moellmann <at> gmail.com>
To: Alan Third <alan <at> idiocy.org>
Cc: Eli Zaretskii <eliz <at> gnu.org>, 65908 <at> debbugs.gnu.org, stefankangas <at> gmail.com, gregory <at> heytings.org, ccsmile2008 <at> outlook.com
Subject: bug#65908: 29.1.50; Emacs 29 regresses on macOS
Date: Thu, 05 Oct 2023 18:43:48 +0200

Alan Third <alan <at> idiocy.org> writes:

> On Thu, Oct 05, 2023 at 07:19:20PM +0300, Eli Zaretskii wrote:
>> > From: Gerd Möllmann <gerd.moellmann <at> gmail.com>
>> > Cc: Eli Zaretskii <eliz <at> gnu.org>,  gregory <at> heytings.org,
>> >   65908 <at> debbugs.gnu.org,  stefankangas <at> gmail.com,  ccsmile2008 <at> outlook.com
>> > Date: Thu, 05 Oct 2023 15:56:11 +0200
>> > 
>> > To the question of profiling.  I've now used the built-in profiler on
>> > the two commits, but I must say that I don't see where the difference
>> > comes from.  These are debug builds, 5 runs of the benchmark.
>> 
>> Are you sure you haven't profiled the same build?  The profiles look
>> almost identical.
>
> I'm wondering if that indicates the problem is in an externally called
> application, like git. I notice VC is being used, and if I copy the
> lisp directory into a non-VC'd directory and run the test there it's
> significantly faster.
>
> For some reason I can no longer replicate the problem though, so I
> can't check this idea myself.

It's ca. 50% faster when I copy the files somewhere else.

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