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

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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.

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Ken Brown <kbrown <at> cornell.edu>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#34618: closed (26.1.92; timerfd interface causes slowdown on
 Cygwin)
Date: Fri, 22 Feb 2019 16:16:02 +0000

[Message part 1 (text/plain, inline)]
Your message dated Fri, 22 Feb 2019 16:15:18 +0000
with message-id <46bf54e1-9817-f20a-4a88-09c2ba78dee2 <at> cornell.edu>
and subject line Re: bug#34618: 26.1.92; timerfd interface causes slowdown on Cygwin
has caused the debbugs.gnu.org bug report #34618,
regarding 26.1.92; timerfd interface causes slowdown on Cygwin
to be marked as done.

(If you believe you have received this mail in error, please contact
help-debbugs <at> gnu.org.)


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[Message part 2 (message/rfc822, inline)]
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 3 (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)]
[Message part 5 (message/rfc822, inline)]
From: Ken Brown <kbrown <at> cornell.edu>
Cc: "34618-done <at> debbugs.gnu.org" <34618-done <at> debbugs.gnu.org>
Subject: Re: bug#34618: 26.1.92; timerfd interface causes slowdown on Cygwin
Date: Fri, 22 Feb 2019 16:15:18 +0000

Closing.
This bug report was last modified 6 years and 69 days ago.

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