[O] speeding up org (was How could I mix COMMENT and TODO?)

[Rustom Mody]

François wrote:
 

> In my very first tries with Org, a few months ago, I put all Org files
>
>
> into the agenda, to discover that Org was very, very slow.  So, I
> changed it all and collected all agenda and TODO into three files only,
> holding lots of links to all other Org files where the information
> really was.  Org recovered all its speed.  And besides, to repair the
>
>
> lost search capabilities, I kludged M-x rgrep so it could search all Org
> files and "reveal" contents when visiting hits.  Well, the "reveal" does
> not always work, but yet, the quicker search is constantly useful to me.
>
>
> Currently, having put TODOs back in their proper Org files and declaring
> them as agenda files, 38 agenda files are taken out from 360 Org files.
> Even if slightly less speedy than 3 agenda files, this is still very
>
>
> bearable: Org does not crawl.  The way Org handles "org-agenda-files" as
> a string naming a file is really convenient to me, it eases the writing
> of external programs acting on them all.  All in all, very satisfactory!


Hi François,

I made the suggestion that ragel should/could be part of emacs:
http://lists.gnu.org/archive/html/emacs-orgmode/2012-03/msg00864.html

Summarised by saying that if ragel is integrated into elisp, org code could become both significantly faster and more readable.

That most sluggish elisp code may be so due to regular _expression_ code, is discussed here:
http://lists.gnu.org/archive/html/emacs-devel/2010-04/msg01202.html

[In all fairness this is all a bit OT for an org list and should really be on an emacs devel list]

Rusi