Subject: Re: bug#20611: 24.4; mutt slow in ansi-term

From: Eli Zaretskii <[email-masked]>
Date: Sun, 10 Apr 2016 20:01:53 +0300

> Date: Sun, 10 Apr 2016 10:15:26 +0100
> From: Mark Hindley <[email-masked]>
> Cc: [email-masked], [email-masked]
> 
> On Sat, Apr 09, 2016 at 12:38:18PM +0300, Eli Zaretskii wrote:
> > > Date: Sat, 9 Apr 2016 08:39:37 +0100
> > > From: Mark Hindley <[email-masked]>
> > > Cc: [email-masked]
> > > 
> > > I have upgraded to faster hardware, so it is less apparent, but my perception is
> > > that redraws within the terminal is slow. Particularly if the terminal is the
> > > only buffer visible within emacs.
> > 
> > Does that only happen with mutt, or also with any other display in
> > ansi-term?
> 
> I have just tried alsamixer within ansi-term, and redraws in response to Ctrl-L
> take well over a second.

Strange.  Does anyone else see this?

> Would anything else help narrow this down?

Can you show a profile ("M-x profiler-start RET") of the slow redraws?
Preferably with the latest pretest of Emacs 25.1, if you can.

Thanks.