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bug#14786: 24.3.50; `field-end' is now very slow


From: Eli Zaretskii
Subject: bug#14786: 24.3.50; `field-end' is now very slow
Date: Thu, 04 Jul 2013 18:15:22 +0300

> Date: Wed, 3 Jul 2013 22:34:31 -0700 (PDT)
> From: Drew Adams <address@hidden>
> 
> I'm not very good at measuring processing time.  If you need more info
> about that then someone will need to remind me what functions to use for
> measuring.

profiler-start and profiler-report.

> I put the cursor on, say, the first file or dir name in a large Dired
> buffer (1860 lines).  I do `M-: (field-end nil)'.
> 
> In Emacs 22, 23, and even 24.3, the result appears immediately - no
> perceptible delay.  In recent Emacs 24 (e.g., this build), the result
> appears after several seconds - 3 to 4 sec.

I cannot reproduce this with yesterday's trunk.  Does this happen for
you in "emacs -Q"?





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