From: Ken Mankoff <mankoff@gmail.com>
To: Charles Berry <ccberry@ucsd.edu>
Cc: Org-mode <emacs-orgmode@gnu.org>
Subject: Re: Painfully Slow Export
Date: Tue, 12 Jun 2018 23:30:38 +0200 [thread overview]
Message-ID: <CAFdBzEojMqsyX+bUW49AgNxJJTN=cXrakqeWH7SkrjM37zHGjw@mail.gmail.com> (raw)
In-Reply-To: <CAFdBzEroEewFuOcj+WMFYrme5sZXvZ5c0Zv3jA1hd56dWBqrPQ@mail.gmail.com>
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As an MWE, I can test with "emacs -Q" and the following org file:
#+PROPERTY: header-args :eval never-export
# (setq org-export-use-babel t)
#+BEGIN_SRC emacs-lisp :results none
(org-babel-do-load-languages
'org-babel-load-languages
'((shell . t)))
#+END_SRC
#+BEGIN_SRC sh :results org raw
for i in $(seq 200); do
echo ""
echo "#+BEGIN_SRC sh :results output :exports results"
echo "echo 'hello, world'"
echo "#+END_SRC"
echo "#+RESULTS:"
echo ": goodbye"
done
#+END_SRC
#+RESULTS:
Execute the first code block to allow execution of the second. Execute the
second code block to generate 200 more. Export. It takes ~6 seconds on my
machine, which seems long but is bearable. Based on the profiling, I think
the reason it takes 1 minute is because the code blocks use <<noweb>>
blocks?. I can verify this with the following MWE:
#+PROPERTY: header-args :eval never-export
# (setq org-export-use-babel t)
#+NAME: foo
#+BEGIN_SRC sh :results verbatim
ls
#+END_SRC
#+RESULTS:
#+NAME: bar
#+BEGIN_SRC sh :results verbatim :noweb yes
<<foo>>
#+END_SRC
#+RESULTS:
#+NAME: baz
#+BEGIN_SRC sh :results verbatim :noweb yes
<<bar>>
#+END_SRC
#+RESULTS:
Repeat the BAZ block with the <<bar>> about 100 times and export this, and
it takes a long time. I killed it after ~30 seconds, because I think I have
my evidence that :noweb yes is the culprit for the slow export.
On Tue, Jun 12, 2018 at 11:15 PM Ken Mankoff <mankoff@gmail.com> wrote:
>
> On Tue, Jun 12, 2018 at 11:07 PM Berry, Charles <ccberry@ucsd.edu> wrote:
>
>>
>> > On Jun 12, 2018, at 12:41 PM, Ken Mankoff <mankoff@gmail.com> wrote:
>> >
>> > Hi Chuck,
>> >
>> > It looks fine to me. I see:
>> >
>> > Name: fig:foo
>> > Lang: python
>> > Properties:
>> > :header-args :eval never-export
>> > :header-args:python nil
>> > Header Arguments:
>> > :cache no
>> > :eval never-export
>> > :exports results
>> > :hlines no
>> > :noweb yes
>> > :results file replace
>> > :session discharge_ts
>> > :tangle no
>> >
>> >
>>
>> And still the src blocks execute?
>>
>>
> No. The source blocks never execute. It just takes an entire minute to
> export the file with 200 source blocks. If they executed it would probably
> take a few hours.
>
> -k.
>
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next prev parent reply other threads:[~2018-06-12 21:29 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-12 14:01 Painfully Slow Export Ken Mankoff
2018-06-12 15:09 ` Chris
2018-06-12 19:41 ` Ken Mankoff
2018-06-12 15:51 ` Berry, Charles
2018-06-12 19:41 ` Ken Mankoff
2018-06-12 21:07 ` Berry, Charles
2018-06-12 21:15 ` Ken Mankoff
2018-06-12 21:30 ` Ken Mankoff [this message]
2018-06-12 22:07 ` Berry, Charles
2018-06-13 5:32 ` Ken Mankoff
2018-06-13 17:55 ` Berry, Charles
2018-06-13 18:32 ` Ken Mankoff
2018-06-14 4:42 ` Ken Mankoff
2018-06-14 18:34 ` BUG? WAS: " Berry, Charles
2018-06-23 21:06 ` Nicolas Goaziou
2018-06-24 1:53 ` Berry, Charles
2018-06-25 13:55 ` Ken Mankoff
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