GNU bug report logs - #59641
term is very slow

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Message #22 received at 59641 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Akib Azmain Turja <akib <at> disroot.org>
Cc: 59641 <at> debbugs.gnu.org
Subject: Re: bug#59641: term is very slow
Date: Sat, 17 Dec 2022 17:47:31 +0200

> From: Akib Azmain Turja <akib <at> disroot.org>
> Cc: 59641 <at> debbugs.gnu.org
> Date: Sat, 17 Dec 2022 18:32:09 +0600
> 
> I guess the hot spot here is 'vertical-motion'.  'vertical-motion' takes
> various things into account, which are unnecessary for a terminal
> emulator.  Eat implements its own motion functions, which make their own
> assumptions (e.g. each character takes exactly one column, each line
> finishes with a newline, etc).  I guess this might be a reason why Eat
> is faster.

If there's no need for the specific features that vertical-motion
provides, calling it might indeed be unnecessary.

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