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bug#32899: 27.0.50; wdired-do-renames: Speed up for long Emacs sessions


From: Brett Gilio
Subject: bug#32899: 27.0.50; wdired-do-renames: Speed up for long Emacs sessions
Date: Mon, 01 Oct 2018 13:05:46 -0500
User-agent: mu4e 1.0; emacs 26.1


Tino Calancha writes:

Severity: wishlist

In a long lived Emacs session with many buffers, we can
get a significant improvement with `wdired-do-renames' if we
drop an unnecessary step, i.e., if `dired-rename-file'
calls `dired-rename-subdir' iif FILE is a directory.

I observe gains as high as a factor 15.

I might be interested in looking into this further. Though, I wonder if
anybody else has any concerns as to why `dired-rename-file' was
implemented here as a step in the first place.


--
Brett M. Gilio
Free Software Foundation, Member
https://gnu.org/software/guix | https://emacs.org





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