On Wed, Jun 13, 2018 at 7:56 PM Berry, Charles <ccberry@ucsd.edu> wrote:

> #+RESULTS:
> : # of src block names: 3
> :  Number of Seconds:     0.0498
>
>
> #+RESULTS:
> : # of src block names: 68
> :  Number of Seconds:     2.1021
>
> #+RESULTS:
> : # of src block names: 200
> :  Number of Seconds:    15.4018
>
>
> #+RESULTS:
> : # of src block names: 266
> :  Number of Seconds:    26.6689
>
> #+RESULTS:
> : # of src block names: 332
> :  Number of Seconds:    41.2211
>
> So my mental count of 10 seconds for 200 blocks was a bit off.
>
> And the time is very nearly quadratic in the number of named src blocks:
>
>

One more thought - even if your system is significantly faster for some
unknown reason - why is export taking ~15 seconds for 200 blocks *when you
aren't exporting any of the code*.
 Why is <<noweb>> expansion occurring if ":eval never-export" is set? There
seems to be something inefficient going on here.

   -k.