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Re: [O] Slow movement in large buffers
From: |
Nick Dokos |
Subject: |
Re: [O] Slow movement in large buffers |
Date: |
Tue, 15 Mar 2011 10:15:47 -0400 |
Carsten Dominik <address@hidden> wrote:
>
> On Mar 15, 2011, at 4:25 AM, Matt Lundin wrote:
>
> > I've been navigating the org-issues file (14000+ lines) and have found
> > movement within the file to be fairly slow. Sometimes Emacs will lock up
> > for several seconds.
> >
> > For instance, to move from the level one heading "* Other" to "* Closed
> > issues" when the outline is folded takes over three seconds:
> >
> > --8<---------------cut here---------------start------------->8---
> > next-line 1 3.015289 3.015289
> > --8<---------------cut here---------------end--------------->8---
> >
>
> Wow, this is really bad.
> Could you use elp and instrument org, outline,
> and font-lock, and do that motion and report
> the results?
>
> > In my experience, the maximum workable size of org files is around
> > 10,000 lines. Beyond that, Emacs starts to spin its wheels.
>
> Not good at all.
>
> - Carsten
>
> >
> > Do others have the same experience? If so, does anyone have any tips on
> > how to diagnose this further?
> >
> > (insert "\n" emacs-version)
> > 23.3.1
> >
> > (insert "\n" org-version)
> > 7.5
> >
FWIW, I opened org-issues.org and followed Matt's lead: at first, I got
almost instant response going from Other to Closed (using arrow-down)
and a slight hesitation (< 0.5s) going from Other to the previous
headline (Development Tasks). After noodling around for a while
(including the motions that Eric F. suggested and getting no delays
there), I tried it again and could discern no delay going either
way. And I do run flyspell in org buffers.
This is on a fairly recent vintage laptop with an i7 quad core processor
(2.67GHz) and 4G of memory. That probably explains some of the difference
I see. Matt, what kind of hardware are you using?
Nick
- [O] Slow movement in large buffers, Matt Lundin, 2011/03/14
- Re: [O] Slow movement in large buffers, Carsten Dominik, 2011/03/15
- Re: [O] Slow movement in large buffers, Lawrence Mitchell, 2011/03/15
- [O] Re: Slow movement in large buffers, Matt Lundin, 2011/03/15
- Re: [O] Slow movement in large buffers,
Nick Dokos <=
- [O] Re: Slow movement in large buffers, Matt Lundin, 2011/03/15
- [O] Re: Slow movement in large buffers, Carsten Dominik, 2011/03/15
- Re: [O] Re: Slow movement in large buffers, Christian Moe, 2011/03/15
- Re: [O] Re: Slow movement in large buffers, Nick Dokos, 2011/03/15
- Re: [O] Re: Slow movement in large buffers, Christian Moe, 2011/03/15
- Re: [O] Re: Slow movement in large buffers, Nick Dokos, 2011/03/15
- Re: [O] Re: Slow movement in large buffers, Bastien, 2011/03/15
- [O] Re: Slow movement in large buffers, Matt Lundin, 2011/03/17
Re: [O] Slow movement in large buffers, Chris Randle, 2011/03/15