Subject: bug#15876: 24.3.50; Highly degraded performance between rev 114715 and 115006

From: Stefan Monnier <[email-masked]>
Date: Wed, 13 Nov 2013 11:52:22 -0500

> - Moving with C-up/down takes more time with latest Emacs, and uses up to 33%
>   of my CPU (vs about 1% with rev 114715).

> - S-TAB'ing in an Org mode file takes 20s (vs 1s with rev 114715) and eats up
>   to 33% of my CPU as well.

If you (setq cache-long-scans nil), does the performance problem disappear?

        Stefan