Re: org-mode version 7.7 and very slow rendering of columns

[Leonidas Tsampros <ltsampros@upnet.gr>]

Leonidas Tsampros <ltsampros@upnet.gr> writes:
> Hello,
>
> I recently started playing with the following setup for an Org file of
> mine:
>
> * Movies
> :PROPERTIES:
> :COLUMNS:  %35ITEM %5LIST_ORDER(List) %25Director %19Genre %7Year %6IMDB_Rating(Rating) %8Watched{X/} %4My_Rating(Me)
> :WATCHED_All: "[ ]" "[X]"
> :END:
> ** List 1
> ** List 2
>
>
> Each of List 1 and 2 have around 200-300 children entries each. In plain
> Org-mode with no columns mode activated, the tree renders just fine with
> noticable delays.
>
> However, as soon as I turn on columns mode I have to wait around 15secs
> to get it activated. In the meantime emacs' CPU usage skyrockets to
> 100%.
>
> After that, moving the cursor between the children entries of List 1 and
> List 2 is also extremely cumbersome as each move seems to send emacs to
> 100% CPU for a little bit.
>
> With debugging on, and during initialization of org-columns, I got this
> backtrace each and every time:
>
>   org-up-heading-safe()
>   byte-code("bytecode....\204T^@\326\314!$
>   byte-code("\300\301\302\217\207" [nil (byte-code  "bytecode....!$
>   org-get-tags-at()
>   org-entry-properties()
>   org-columns()
>
> Do you have any idea of what's might be causing this hiccup?
>
> Best Regards,
> Leonidas Tsampros

I forgot to mention that this happens with

GNU Emacs 24.0.91.1 (x86_64-pc-linux-gnu, GTK+ Version 2.24.6) of 2011-11-23

and the bundled org-mode which is 7.7

Also, I did a quick test with:

GNU Emacs 23.3.1 (x86_64-pc-linux-gnu, GTK+ Version 2.24.6) of 2011-10-26
Org-mode version 6.33x

and I confirm that I can see the same behavior on that version to.

Best Regards,
Leonidas Tsampros