GNU bug report logs - #34618
26.1.92; timerfd interface causes slowdown on Cygwin

Previous Next

Package: emacs;

Reported by: Ken Brown <kbrown <at> cornell.edu>

Date: Fri, 22 Feb 2019 15:10:01 UTC

Severity: normal

Found in version 26.1.92

Done: Ken Brown <kbrown <at> cornell.edu>

Bug is archived. No further changes may be made.

Full log

Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Ken Brown <kbrown <at> cornell.edu>
To: "bug-gnu-emacs <at> gnu.org" <bug-gnu-emacs <at> gnu.org>
Subject: 26.1.92; timerfd interface causes slowdown on Cygwin
Date: Fri, 22 Feb 2019 15:08:33 +0000

[Message part 1 (text/plain, inline)]
Starting with cygwin-3.0.0, Cygwin has the timerfd functions.  But using
them causes Emacs to be very slow to respond to user input.  If I press
a key, there is a 1-2 second delay before Emacs responds.  I'm in the
process of trying to debug this
(http://www.cygwin.org/ml/cygwin/2019-02/msg00364.html).  In the
meantime, the attached patch disables the use of these functions.

OK for the emacs-26 branch (after filling in the bug number)?

Ken

[0001-Disable-the-timerfd-interface-on-Cygwin.patch (text/plain, attachment)]
This bug report was last modified 6 years and 69 days ago.

Previous Next

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson.