Re: Things got very slow: profiler output

[Bruno Barbier]

Hi William,

William Denton <william@williamdenton.org> writes:

> I rebuilt Org and Emacs from the development trees and something is wrong, 
> because some Org files I use regularly have become incredibly slow to use.  I 
> rarely use the profiler and don't know what to make of what it says, but I 
> opened a file and ran it while I moved around and expanded and collapsed some 
> headings for a minute or so.  (It was so slow that it took me a minute to do 
> what would usually take me a few seconds.)  I'll paste the results below.  
> Does that say anything useful?  There is a little LaTeX in the file but not 
> much.
>
> Any help on interpreting this would be welcome.  I can try reverting to an 
> earlier Git commit tomorrow.
>
> Bill
>
>      Samples    %   Function
>        73203  70% - redisplay_internal (C function)
>        71496  68%  - jit-lock-function
>        71488  68%   - jit-lock-fontify-now
>        71472  68%    - jit-lock--run-functions
>        71472  68%     - #<compiled 0x1baf5fbd9c5fbb3f>
>        71472  68%      - font-lock-fontify-region
>        71468  68%       - font-lock-default-fontify-region
>        71436  68%        - font-lock-fontify-keywords-region
>        71124  68%         - org-do-latex-and-related
>        71124  68%            re-search-forward
>          228   0%         + org-activate-folds
>           16   0%         + org-fontify-meta-lines-and-blocks
>           12   0%         + org-activate-footnote-links
>            8   0%           org-activate-dates
>            8   0%         + org-activate-links
>            4   0%           org-do-emphasis-faces
>            4   0%           org-fontify-drawers
>            4   0%           org-raise-scripts
>           28   0%        + font-lock-unfontify-region
>            4   0%        + font-lock-extend-region-wholelines
>            4   0%      text-property-any
>        30951  29% + command-execute
>           ...

Did you customize org-latex-and-related-regexp ?  Is it still slow if you set
this to nil (which is apparently the default value) ?

If not, telling which version of Org, that you were using before, might help.


Bruno


>
> --
> William Denton
> https://www.miskatonic.org/
> Librarian, artist and licensed private investigator.
> Toronto, Canada