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Re: [O] Painfully Slow Export

From: Ken Mankoff
Subject: Re: [O] Painfully Slow Export
Date: Thu, 14 Jun 2018 06:42:18 +0200

On Wed, Jun 13, 2018 at 7:56 PM Berry, Charles <address@hidden> wrote:
: # of src block names: 3
:  Number of Seconds:     0.0498

: # of src block names: 68
:  Number of Seconds:     2.1021

: # of src block names: 200
:  Number of Seconds:    15.4018

: # of src block names: 266
:  Number of Seconds:    26.6689

: # 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.



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