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[O] Very slow execution, tangling and export with noweb and quick-and-di


From: Rainer M Krug
Subject: [O] Very slow execution, tangling and export with noweb and quick-and-dirty
Date: Tue, 01 Sep 2015 11:47:38 +0200
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/24.5 (darwin)

Hi

I have a rather extensive literate programming document with several
hundred code blocks. In two subtrees, I use :noweb. Each of these has one
noweb block which is located onder the first level header, and used several
times in the sub-sections of this tree.

But even with the quick-and-dirty option

,----
| #+BIND: org-babel-use-quick-and-dirty-noweb-expansion "t"
`----

execution, tangling and export takes very long (one block about 12
seconds, of which about 2 seconde=s max execution time of the code block).

Is this a general problem of noweb expansion? How can I make this
faster?

I really want to use the noweb, because the block is rather dynamic and
used several times in the subrtree.

Below the report from the profiler.

Any suggestions welcome,

Rainer


,----
| - command-execute                                                2024  90%
|  - call-interactively                                            2024  90%
|   - org-ctrl-c-ctrl-c                                            1966  88%
|    - run-hook-with-args-until-success                            1966  88%
|     - org-babel-execute-safely-maybe                             1966  88%
|      - org-babel-execute-maybe                                   1966  88%
|       - org-babel-execute-src-block-maybe                        1966  88%
|        - org-babel-execute-src-block                             1966  88%
|         - org-babel-expand-noweb-references                      1890  84%
|          - org-babel-get-src-block-info                          1884  84%
|           - org-babel-parse-src-block-match                      1680  75%
|            - org-babel-params-from-properties                    1667  74%
|             - mapcar                                             1602  71%
|              - #<compiled 0x41e1ae65>                            1601  71%
|               - org-entry-get                                    1598  71%
|                - org-entry-get-with-inheritance                  1576  70%
|                 - byte-code                                      1575  70%
|                  - org-up-heading-safe                           1006  45%
|                   - org-back-to-heading                           109   4%
|                    - outline-back-to-heading                       56   2%
|                       outline-on-heading-p                          7   0%
|                     org-outline-level                              61   2%
|                  - org-property--local-values                     515  23%
|                   - org-get-property-block                        351  15%
|                    - org-back-to-heading                           69   3%
|                     - outline-back-to-heading                      46   2%
|                        outline-on-heading-p                         9   0%
|                      org-before-first-heading-p                    45   2%
|                  member-ignore-case                                 5   0%
|                + org-entry-properties                               2   0%
|             + org-entry-get                                        50   2%
|             + org-babel-parse-header-arguments                     11   0%
|               org-babel-combine-header-arg-lists                    1   0%
|               byte-code                                             1   0%
|            + org-babel-parse-header-arguments                       5   0%
|            + apply                                                  4   0%
|            + org-unescape-code-in-string                            2   0%
|              generate-new-buffer                                    1   0%
|              match-string-no-properties                             1   0%
|           + org-babel-generate-file-param                         201   9%
|           + org-babel-where-is-src-block-head                       1   0%
|          + org-babel-ref-goto-headline-id                           2   0%
|         + org-babel-execute:R                                      58   2%
|         + org-babel-get-src-block-info                             10   0%
|         + run-hooks                                                 7   0%
|         + org-babel-insert-result                                   1   0%
|   + smex                                                           58   2%
| + ...                                                             200   8%
| + timer-event-handler                                               4   0%
| + redisplay_internal (C function)                                   2   0%
| + flyspell-post-command-hook                                        2   0%
`----

-- 
Rainer M. Krug, PhD (Conservation Ecology, SUN), MSc (Conservation Biology, 
UCT), Dipl. Phys. (Germany)

Centre of Excellence for Invasion Biology
Stellenbosch University
South Africa

Tel :       +33 - (0)9 53 10 27 44
Cell:       +33 - (0)6 85 62 59 98
Fax :       +33 - (0)9 58 10 27 44

Fax (D):    +49 - (0)3 21 21 25 22 44

email:      address@hidden

Skype:      RMkrug

PGP: 0x0F52F982

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