bug#58687: 29.0.50; Enabling pp-use-max-width dramatically slows down formatting of large sexps like org-persist--index

[Ihor Radchenko]

Michael Eliachevitch <m.eliachevitch@posteo.de> writes:

> I attached a file with the value of my `org-persist--index` expression and a 
> file with a benchmark where I run pp on it, which took me 25s when running it 
> with emacs -Q. Until recently my org persist index was much longer, but I 
> pruned it a bit back when I wasn't aware what exactly caused the slowdown.

I'd like to bump this bug.

If it helps, here are the steps to reproduce:

1. Save the attached files to same folder
2. Open benchmark-pp-on-org-persist-index.el
3. M-x eval-buffer

Observed: (19.617422592 2 1.0353073050000035)
Expected: `pp' not taking ~20sec to write 15k of elisp data.

-- 
Ihor Radchenko // yantar92,
Org mode contributor,
Learn more about Org mode at <https://orgmode.org/>.
Support Org development at <https://liberapay.com/org-mode>,
or support my work at <https://liberapay.com/yantar92>