From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#28695: 26.0.60; Rendering lag spikes caused by double-buffering on Linux Date: Thu, 05 Oct 2017 17:01:25 +0300 Message-ID: <83mv55wv62.fsf@gnu.org> References: <8760bvd2w7.fsf@bryan.sh> <59D4A431.7010801@gmx.at> <831smjz2b2.fsf@gnu.org> <874lrfcg4s.fsf@bryan.sh> <1931afeb-51cb-89c9-72ff-c8a062fecba7@yandex.ru> Reply-To: Eli Zaretskii NNTP-Posting-Host: blaine.gmane.org X-Trace: blaine.gmane.org 1507213876 32695 195.159.176.226 (5 Oct 2017 14:31:16 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Thu, 5 Oct 2017 14:31:16 +0000 (UTC) Cc: bryan@bryan.sh, 28695@debbugs.gnu.org To: Dmitry Gutov Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Thu Oct 05 16:31:08 2017 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1e07B1-0007Fa-B7 for geb-bug-gnu-emacs@m.gmane.org; Thu, 05 Oct 2017 16:31:03 +0200 Original-Received: from localhost ([::1]:40154 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1e07B8-0007X0-RX for geb-bug-gnu-emacs@m.gmane.org; Thu, 05 Oct 2017 10:31:10 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:56825) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1e06j2-0008TS-8M for bug-gnu-emacs@gnu.org; Thu, 05 Oct 2017 10:02:13 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1e06iw-0002wb-JQ for bug-gnu-emacs@gnu.org; Thu, 05 Oct 2017 10:02:08 -0400 Original-Received: from debbugs.gnu.org ([208.118.235.43]:42964) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1e06iw-0002v8-Gg for bug-gnu-emacs@gnu.org; Thu, 05 Oct 2017 10:02:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1e06iw-0000t1-4T for bug-gnu-emacs@gnu.org; Thu, 05 Oct 2017 10:02:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Thu, 05 Oct 2017 14:02:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 28695 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 28695-submit@debbugs.gnu.org id=B28695.15072121083380 (code B ref 28695); Thu, 05 Oct 2017 14:02:02 +0000 Original-Received: (at 28695) by debbugs.gnu.org; 5 Oct 2017 14:01:48 +0000 Original-Received: from localhost ([127.0.0.1]:51645 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1e06ih-0000sS-Kd for submit@debbugs.gnu.org; Thu, 05 Oct 2017 10:01:47 -0400 Original-Received: from eggs.gnu.org ([208.118.235.92]:37478) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1e06if-0000sG-U6 for 28695@debbugs.gnu.org; Thu, 05 Oct 2017 10:01:46 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1e06iW-0002L8-Lj for 28695@debbugs.gnu.org; Thu, 05 Oct 2017 10:01:40 -0400 Original-Received: from fencepost.gnu.org ([2001:4830:134:3::e]:50065) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1e06iW-0002Ky-IF; Thu, 05 Oct 2017 10:01:36 -0400 Original-Received: from 84.94.185.246.cable.012.net.il ([84.94.185.246]:3278 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1e06iV-0003no-Rl; Thu, 05 Oct 2017 10:01:36 -0400 In-reply-to: <1931afeb-51cb-89c9-72ff-c8a062fecba7@yandex.ru> (message from Dmitry Gutov on Thu, 5 Oct 2017 16:36:53 +0300) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 208.118.235.43 X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.org gmane.emacs.bugs:137980 Archived-At: > Cc: 28695@debbugs.gnu.org > From: Dmitry Gutov > Date: Thu, 5 Oct 2017 16:36:53 +0300 > > Eli, perhaps it would be wise to ask the reporter if he'd like it to be > turned off by default, if this problem can't be fixed in time. I kinda did, by proposing the recipe to turn it off, and waiting for a response ;-) > Personally, I can stand a few minor glitches, given that double > buffering saves me from flickering, which has been an annoyance for years. I know that you are very happy with this feature, which is why it puzzles me how come you (and others who like it) don't see these problems. > I wasn't able to compare with the revision before double buffering, > though: after checking out c29071587c64efb30792bd72248d3c791abd9337^, > ./autogen.sh says: It should be easier to use a previous release of Emacs, if you have it or can install it. Btw, the hardships of building an old enough checkout are the reason why I keep old binaries around, and insist on not doing a bootstrap (which nukes them). I find this a much easier way of "bisecting", or at least of having a good start point for looking for a change that causes some bug.