From: Oleksandr Gavenko <gavenkoa@gmail.com>
To: help-gnu-emacs@gnu.org
Subject: Emacs tooooo slow on loooooong line (eat my 2 GHz CPU).
Date: Mon, 16 Aug 2010 00:04:39 +0300 [thread overview]
Message-ID: <i49kpa$f48$1@dough.gmane.org> (raw)
I experiment ever with:
$ emacs --no-init-file --no-site-file
GNU Emacs 23.2.1 (i686-pc-cygwin) of 2010-05-08 on laptop
GNU Emacs 23.2.1 (i386-mingw-nt5.1.2600) of 2010-05-08 on G41R2F1
When single line is more then 10 KiB long Emacs freeze.
For example try typing (1000 times repeat simple text):
C-SPC int main() {return 0;} SPC M-w C-x ( C-y C-x ) C-u 1 0 0 0 C-x e
After text appear in buffer try move up/down by this text.
My CPU loading up to 100%.
Cygwin Emacs in mintty work near 2x time faster
then Emacs native in gui.
Currently I found longline-mode. With such settings:
(setq longlines-show-hard-newlines t)
(longlines-mode 1)
it is speedy but not so visual convenient
as default line wrapping mechanism.
Also I try visual-line-mode. It also very slow!
I try Emacs 21.3 and found that there no such feature as
moving to wrapped part of line by one line. Instead if I
press UP or DOWN in go to new line. And very fast!
Same with Emacs 22.3.
How back previous behavior on long line moving or fix
current?
--
Best regards!
next reply other threads:[~2010-08-15 21:04 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-08-15 21:04 Oleksandr Gavenko [this message]
2010-08-15 22:29 ` Emacs tooooo slow on loooooong line (eat my 2 GHz CPU) Deniz Dogan
2010-08-16 21:18 ` Oleksandr Gavenko
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