Re: Relative performance of text-properties search functions

[Eli Zaretskii]

> From: Thorsten Jolitz <tjolitz@gmail.com>
> Date: Fri, 24 May 2013 16:10:04 +0200
> 
> Eli Zaretskii <eliz@gnu.org> writes:
> 
> >> From: Thorsten Jolitz <tjolitz@gmail.com>
> >> Date: Thu, 23 May 2013 14:16:47 +0200
> >> 
> >> the right thing to do (from a performance point of view) in a case where
> >> at the end of each outline (or org-mode) headline in a buffer a
> >> replacing display spec should be inserted, and then updated many times
> >> afterwards (either on user demand or via a visibility-change hook):
> >
> > Beware: too many replacing display specs will slow down redisplay in
> > Emacs 24.1 and later.  If you have alternatives, consider them first.
> 
> I can imagine that in a .emacs with thousands of lines and hundreds of
> headllines, redisplay of some headline cookies with every visibility
> change will make Emacs work hard. 

You were talking about outline or org-mode, so how is .emacs relevant?