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bug#8890: 23.3; message writing slows emacs
From: |
Dave Abrahams |
Subject: |
bug#8890: 23.3; message writing slows emacs |
Date: |
Sun, 11 Sep 2011 12:39:23 -0400 |
User-agent: |
Gnus/5.110018 (No Gnus v0.18) Emacs/23.3 (darwin) |
on Sun Sep 11 2011, Eli Zaretskii <eliz-AT-gnu.org> wrote:
>> From: Lars Magne Ingebrigtsen <larsi@gnus.org>
>
>> Cc: Eli Zaretskii <eliz@gnu.org>, 8890@debbugs.gnu.org
>> Date: Sun, 11 Sep 2011 16:52:56 +0200
>>
>> Emacs does clever screen updates, though. So if the only thing that
>> changes is the number before the percentage, Emacs won't repaint the
>> entire line, I think?
>
> True. Like I said, redisplay of the echo area is very fast.
I don't think it's clever enough. Try this:
--8<---------------cut here---------------start------------->8---
(let (timings)
(dolist (reps '(1 10))
(let ((start-time (current-time)))
(loop for x to 10000 do
(loop repeat reps do
(message "message #%s" x)))
(push (time-subtract (current-time) start-time) timings)))
(message "%s" (mapcar 'time-to-seconds timings)))
--8<---------------cut here---------------end--------------->8---
I get (29.539774 2.514761)
I think this shows that it takes (more than) 10x as long to write out
the same message 10 times as it does to write it out once.
--
Dave Abrahams
BoostPro Computing
http://www.boostpro.com
- bug#8890: 23.3; message writing slows emacs, Lars Magne Ingebrigtsen, 2011/09/11
- bug#8890: 23.3; message writing slows emacs, Dave Abrahams, 2011/09/11
- bug#8890: 23.3; message writing slows emacs, Eli Zaretskii, 2011/09/11
- bug#8890: 23.3; message writing slows emacs, Dave Abrahams, 2011/09/11
- bug#8890: 23.3; message writing slows emacs, Eli Zaretskii, 2011/09/11
- bug#8890: 23.3; message writing slows emacs, Dave Abrahams, 2011/09/11
- bug#8890: 23.3; message writing slows emacs, Lars Magne Ingebrigtsen, 2011/09/11
- bug#8890: 23.3; message writing slows emacs, Eli Zaretskii, 2011/09/11
- bug#8890: 23.3; message writing slows emacs,
Dave Abrahams <=
- bug#8890: 23.3; message writing slows emacs, Dave Abrahams, 2011/09/15
- bug#8890: 23.3; message writing slows emacs, Eli Zaretskii, 2011/09/16
- bug#8890: 23.3; message writing slows emacs, Lars Magne Ingebrigtsen, 2011/09/11
- bug#8890: 23.3; message writing slows emacs, Stefan Monnier, 2011/09/16
- bug#8890: 23.3; message writing slows emacs, Eli Zaretskii, 2011/09/16
- bug#8890: 23.3; message writing slows emacs, Stefan Monnier, 2011/09/16
- bug#8890: 23.3; message writing slows emacs, Dave Abrahams, 2011/09/16
- bug#8890: 23.3; message writing slows emacs, Lars Magne Ingebrigtsen, 2011/09/17
- bug#8890: 23.3; message writing slows emacs, Dave Abrahams, 2011/09/17
- bug#8890: 23.3; message writing slows emacs, Eli Zaretskii, 2011/09/17