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Re: Elisp performance

From: Ludovic Courtès
Subject: Re: Elisp performance
Date: Sun, 09 Aug 2009 00:15:36 +0200
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/23.1.50 (gnu/linux)


Andy Wingo <address@hidden> writes:

> Dynamic-wind, on the other hand, does pose a problem. The problem is
> that dynamic-wind is a primitive -- to call it, the VM saves its
> registers, conses together its arguments, and passes them to the
> evaluator. The evaluator destructures the consed list, eventually finds
> the C function

IMO a pressing issue here is to avoid consing when invoking "rest-less"
subrs (à la `scm_i_gsubr_apply ()' [0]).

(FWIW this has been on my to-do list for some time but feel free to give
it a try!)



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