|Subject:||Re: Very bad/slow redraw with vertical split.|
|Date:||Fri, 24 Oct 2008 15:26:14 -0400|
On Fri, Oct 24, 2008 at 02:26:30PM +0100, Thomas Adam wrote:I had a giant post written about how vertical splits in emacs and
> Hello --
> 2008/10/24 Robin Lee Powell <address@hidden>:
> > I'm playing around with vertical split. I'm using Screen
> > version 4.00.03jw4 (FAU) 2-May-06 on Debian.
> > When I have vertical split on, less is slow. *Really* slow. So
> > is more. vim is OK. When I say "slow", I mean that when I say
> > "less file", it takes ~20 seconds for it to put the first
> > screenful of data up.
> > Any idea what's up?
> It's a known caveat of vertical splits in screen. Screen has to
> continually redraw the region and so that slows things down.
vim are quite fast, and how running vim under a vertical split in
screen is also snappy, as opposed to running less, so there *must*
be a problem somewhere...
And then I realized that when you page down in vim, it redraws its
display area once. When you page down in less, it redraws line by
Holding down j in vim to make it redraw line by line makes
everything just as slow as less.
Can anyone reccomend a less (ha!) stupid pager? more does the same
thing, and I can't view man pages like this.
less -c mostly does the trick... Except that the initial screen
clear to put the cursor at the top line is done the slow way, and
hence takes ~30 seconds. "clear ; less -c [file]" works, but I'd
love a better suggestion.
They say: "The first AIs will be built by the military as weapons."
And I'm thinking: "Does it even occur to you to try for something
other than the default outcome?" -- http://shorl.com/tydruhedufogre
http://www.digitalkingdom.org/~rlpowell/ *** http://www.lojban.org/
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