Re: redisplay - very long lines

[David Reitter]

On 18 Feb 2009, at 14:44, Stefan Monnier wrote:

> > > We're proposing to stop processing a buffer line when we have left
> > > the portion of the buffer that is currently visible in the window.
> > I think Emacs already does that, but I might be mistaken.
>
> If it does, then the performance issue is elsewhere.

Here's the profiler output again:

	0.0%	99.8%	Emacs	                                                  
redisplay_window	
	0.0%	99.8%	Emacs	                                                   
move_it_vertically_backward	
	0.0%	62.3%	Emacs	                                                    
move_it_to	
	8.9%	62.0%	Emacs	                                                     
move_it_in_display_line_to	
	14.2%	30.5%	 
Emacs	                                                      
x_produce_glyphs