Subject: Re: bug#51734: 29.0.50; got slow

From: Eli Zaretskii <[email-masked]>
Date: Thu, 11 Nov 2021 10:09:30 +0200

> Date: Thu, 11 Nov 2021 11:43:36 +0900
> From: Katsumi Yamaoka <[email-masked]>
> Cc: [email-masked]
> 
> On Wed, 10 Nov 2021 16:08:09 +0200, Eli Zaretskii wrote:
> > Building Emacs with -O0 should never make Emacs so slow as described
> > by the OP.  Disabling optimizations generally makes Emacs about 2.5 to
> > 3 times slower, but that's still a far cry from response time of a
> > second or two to C-s.
> 
> Yes, I have no problem with -O0 on Emacs master till last week
> and also on 28, 27, 26.

Can you be more specific regarding which commit was the last one where
the problem didn't exist?

> Probably what I should do could be bisecting the recent commits.

That'd be best, if you can.  Thanks.