GNU bug report logs - #21695
25.0.50; Change most occurrences of `setq' in Emacs manual to `customize-set-variable'

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Message #203 received at 21695 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Gregory Heytings <gregory <at> heytings.org>
Cc: larsi <at> gnus.org, hmelman <at> gmail.com, 21695 <at> debbugs.gnu.org, rms <at> gnu.org
Subject: Re: bug#21695: 25.0.50; Change most occurrences of `setq' in Emacs
 manual to `customize-set-variable'? Really?
Date: Mon, 13 Sep 2021 14:31:41 +0300

> Date: Sun, 12 Sep 2021 21:26:18 +0000
> From: Gregory Heytings <gregory <at> heytings.org>
> cc: larsi <at> gnus.org, hmelman <at> gmail.com, 21695 <at> debbugs.gnu.org, rms <at> gnu.org
> 
> > Even then, some people will frown on 20% slowdown of the startup.
> 
> It is not a slowdown of the startup, it is a slowdown of setq

Init files use a lot of setq's, at least mine do.

> which becomes visible for the user when say 100 million setq's are
> executed.

Tell that to those who complain when startup takes more than 100 msec.

> Anyway, given your remark, I improved the patch.  With this optimized 
> version, there is no noticeable difference for variables without a plist 
> (~40 nanoseconds for each call to setq, with and without the patch), and a 
> small difference for variables with a plist (~40 nanoseconds for each call 
> to setq without the patch, ~42 nanoseconds with the patch).

Thanks, this is much better.  But I think this still needs some
discussion (and one is already going on), so let's wait until it
reaches some conclusions.

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