Re: [O] I'm tripping over #+BABEL: vs. #+PROPERTY:

[Sebastien Vauban]

Hi Nick,

Nick Dokos wrote:
>>     The "automagic C-c C-c" should be NOT[1] done after each key press or
>>     some such. That certainly would be a killer feature, in its real
>>     acception: performance would be unbearable.
>> 
>>     In my mind, automatically (re-)parsing the meta options should be each
>>     time the user presses `C-c C-v C-e' (eval code blocks); that is, when
>>     the user expects his options to be taken into account.
>> 
>> Does it make sense?
>> 
>> Best regards,
>>   Seb
>> 
>> Footnotes:
>> 
>> [1] This word was missing (in the original post)!
>> 
>
> Well, it might make sense but you can try it out and let us know:
>
> - make files with 10, 100, 1000 trivial (or even empty) code blocks, just
>   enough to make sure that org-babel-execute-maybe is really called on them:
>   I think that it will be called even on empty code blocks, but I'm not sure
>   if there is some optimization in there.
>
> - measure the time it takes to export each one to html (say).
>
> - add a call to org-mode-restart into org-babel-execute-maybe, and time the
>   same operation again: how significant is the slowdown?
>
> If the slowdown is bearable in these cases, then it will be bearable in
> realistic situations, where block execution is going to be a much more
> significant fraction of the total.

I'll give it a shot, and report the pre/post results "à la Weight Watchers".
Thanks for pointing out some detailed calls I have to make for testing that
idea!

> BTW, what's the biggest file you (all, not just Seb) have in terms of the
> number of code blocks it contains? In my case, the largest one had about two
> dozen code blocks, so the 100 case would easily cover me, but I suspect
> there are much bigger ones out there.

The biggest number of code blocks in any document I have is around 20.

Best regards,
  Seb

-- 
Sebastien Vauban