From: "Mattias Engdegård" <mattiase@acm.org>
To: Peter Ludemann <peter.ludemann@gmail.com>
Cc: 38644@debbugs.gnu.org, Michael Albinus <michael.albinus@gmx.de>
Subject: bug#38644: 26.3; emacs uses 100% CPU with auto-revert-mode
Date: Sun, 5 Jan 2020 20:57:42 +0100 [thread overview]
Message-ID: <0723EC9F-3A54-4E84-8D96-EA8D17985A62@acm.org> (raw)
In-Reply-To: <CAHjfyZ0na1fVrgtMbxhAiyYPCcRU3TivGwjZu1gWYkh4UQWawQ@mail.gmail.com>
5 jan. 2020 kl. 20.31 skrev Peter Ludemann <peter.ludemann@gmail.com>:
> Which version of Emacs would you like me to try this with? And what result are you expecting/hoping to see? (e.g., might it reduce the current 30-80% CPU load for polling with emacs 28.0.50?) There are only a few open files directly under /tmp, so would this have any effect or does it propagate down to subdirectories?
>
> [Also, I'd need a few more details (not being an emacs-internals person) ... should I add this to my .emacs and restart, or execute in a scratch buffer, or ...?]
'auto-revert-avoid-polling' is a single global customisable variable, so you would set it using
M-x customise-variable RET auto-revert-avoid-polling RET
, then turn it on and apply the change. I believe it was introduced in Emacs 27.
The idea is to save CPU by not having to look at files periodically to see if they have changed. I have no idea if you would see any improvement at all, but it shouldn't make anything worse.
next prev parent reply other threads:[~2020-01-05 19:57 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-17 1:23 bug#38644: 26.3; emacs uses 100% CPU with auto-revert-mode Peter Ludemann
2019-12-17 13:59 ` Michael Albinus
2019-12-17 16:17 ` Eli Zaretskii
2019-12-17 18:27 ` Peter Ludemann
2019-12-17 19:30 ` Michael Albinus
2019-12-28 21:12 ` Peter Ludemann
2019-12-29 15:23 ` Michael Albinus
2020-01-04 18:50 ` Peter Ludemann
2020-01-05 9:28 ` Michael Albinus
2020-01-05 13:04 ` Mattias Engdegård
2020-01-05 19:31 ` Peter Ludemann
2020-01-05 19:57 ` Mattias Engdegård [this message]
2020-01-07 0:01 ` Peter Ludemann
2020-01-07 0:34 ` Peter Ludemann
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