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NNTP-Posting-Date: Mon, 05 Oct 2026 23:41:16 +0000
From: steve g <Sgonedes1977@gmail.com>
Newsgroups: comp.lang.lisp
Subject: Re: GNU Emacs native compiled functions
References: <113ovuj$23t9c$1@dont-email.me> <114h26m$2b0po$3@dont-email.me> <114kain$3erqe$1@dont-email.me> <114oc02$qbqp$1@dont-email.me> <114odai$qp0b$1@dont-email.me> <114piou$14lmv$2@dont-email.me> <114pno3$16g53$1@dont-email.me> <114pqg5$17lne$1@dont-email.me> <5T_bS.71191$4Fu9.56234@fx05.ams4> <27248.58134.739884.512819@parhasard.net> <87v78mz15a.fsf_-_@debian> <m3h5k5n2au.fsf@pison.robolove.meer.net> <87wlsmo83m.fsf@debian> <m3tsno4bob.fsf@pison.robolove.meer.net> <jwveceqwtg2.fsf-monnier+comp.lang.lisp@gnu.org> <27310.37495.390148.32696@parhasard.net> <118n0hq$2klsb$2@dont-email.me> <27311.2978.832624.294330@parhasard.net> <87qzioixej.fsf@nightsong.com> <27312.20006.551518.782946@parhasard.net> <87ik3zik9z.fsf@nightsong.com>
Date: Mon, 05 Oct 2026 19:41:16 -0400
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Paul Rubin <no.email@nospam.invalid> writes:

> Aidan Kehoe <kehoea@parhasard.net> writes:
>> My understanding was that he felt it [dynamic scope] was faster, but I
>> don’t care to argue.
>
> See here: https://www.gnu.org/software/emacs/emacs-paper.html#SEC18
>
> Even with byte compilation, I'd have to see benchmarks to believe that
> the speed difference between dynamic and lexical binding in Emacs is
> significant, especially with a small amount of coding attention, such as
> using LET outside rather than inside a tight loop if you can.
>
>> Philosophies can be wrong.
>
> RMS is a pretty sharp Lisper and while anyone can be wrong about things,


The problem was most likely that the size of GNU Emacs exceeded his
initial estimation.