GNU bug report logs - #37321
27.0.50; Excessive gc in a use case (el-search)

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Package: emacs; Reported by: Michael Heerdegen <michael_heerdegen@HIDDEN>; dated Fri, 6 Sep 2019 13:53:02 UTC; Maintainer for emacs is bug-gnu-emacs@HIDDEN.

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From: Michael Heerdegen <michael_heerdegen@HIDDEN>
To: bug-gnu-emacs@HIDDEN
Subject: 27.0.50; Excessive gc in a use case (el-search)
Date: Fri, 06 Sep 2019 15:52:10 +0200
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Hi,

apparently due to the latest changes in gc (I noticed the problem today,
after doing a make bootstrap yesterday), el-searching is slowed down by
a factor of 10000 or so.  Profiling shows that nearly all of the time is
spent in gc.

To reproduce from emacs -Q:

M-x list-packages
Install el-search
M-x el-search-emacs-elisp-sources 'pcase M-RET

This will start an el-occur for the symbol 'pcase in the Emacs Elisp
sources.  This normally takes around 10 seconds but is now just
unusable.

(If you want me to bisect, do I have to make bootstrap, or does a simple
make suffice?)

Hope someone can help.

TIA,

Michael.





In GNU Emacs 27.0.50 (build 2, x86_64-pc-linux-gnu, GTK+ Version 3.24.10)
 of 2019-09-06 built on drachen
Repository revision: 459b416e5f950c6127f10c9eca68d65bdab688d4
Repository branch: master
Windowing system distributor 'The X.Org Foundation', version 11.0.12004000
System Description: Debian GNU/Linux bullseye/sid





Acknowledgement sent to Michael Heerdegen <michael_heerdegen@HIDDEN>:
New bug report received and forwarded. Copy sent to bug-gnu-emacs@HIDDEN. Full text available.
Report forwarded to bug-gnu-emacs@HIDDEN:
bug#37321; Package emacs. Full text available.
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Last modified: Fri, 6 Sep 2019 14:00:02 UTC

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