Re: [O] [Orgmode] Slow speed of week and month views

[Christoph Groth]

Carsten Dominik wrote in 2010:

> I am afraid I don't see any major speed improvements that could 
> make this happen. Yes, one could parse all the files once, build 
> a table in memory and get the entries for each day from there - 
> but that comes down to a complete rewrite of the parser, maybe 
> even to switching to an internal representation model for 
> Org-mode.
> I don't see that happening, I am afraid.
Computing the agenda month view takes 20 seconds in my case. 
That's perhaps the most serious problem with orgmode as I (and I 
suppose others as well) use it.  It would be great if this issue 
could be solved after all.
Would it be really so difficult to do?  The actual parsing seems 
to be done in the function org-agenda-get-day-entries as called by 
org-agenda-list.  Inside org-agenda-get-day-entries the crucial 
bit seems to be (org-agenda-today-p date).  If that bit got 
replaced by something that matches more than a single day, 
wouldn't this mostly do the trick?
This is much easier than "rewriting the parser", so it seems that 
I'm overlooking some problems.