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: Wed, 04 Oct 2017 10:53:23 +0300 Message-ID: <83efqjz6vg.fsf@gnu.org> References: <8760bvd2w7.fsf@bryan.sh> Reply-To: Eli Zaretskii NNTP-Posting-Host: blaine.gmane.org X-Trace: blaine.gmane.org 1507103651 30656 195.159.176.226 (4 Oct 2017 07:54:11 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Wed, 4 Oct 2017 07:54:11 +0000 (UTC) Cc: 28695@debbugs.gnu.org To: Bryan Gilbert Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Wed Oct 04 09:54:07 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 1dzeVJ-0007O9-MC for geb-bug-gnu-emacs@m.gmane.org; Wed, 04 Oct 2017 09:54:05 +0200 Original-Received: from localhost ([::1]:33580 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dzeVR-0008Kt-7z for geb-bug-gnu-emacs@m.gmane.org; Wed, 04 Oct 2017 03:54:13 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:37252) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dzeVJ-0008Kf-7G for bug-gnu-emacs@gnu.org; Wed, 04 Oct 2017 03:54:09 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dzeVG-00078F-5R for bug-gnu-emacs@gnu.org; Wed, 04 Oct 2017 03:54:05 -0400 Original-Received: from debbugs.gnu.org ([208.118.235.43]:38733) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1dzeVG-00077t-1A for bug-gnu-emacs@gnu.org; Wed, 04 Oct 2017 03:54:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1dzeVF-0002dK-PK for bug-gnu-emacs@gnu.org; Wed, 04 Oct 2017 03:54:01 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Wed, 04 Oct 2017 07:54:01 +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=B28695.150710362710095 (code B ref 28695); Wed, 04 Oct 2017 07:54:01 +0000 Original-Received: (at 28695) by debbugs.gnu.org; 4 Oct 2017 07:53:47 +0000 Original-Received: from localhost ([127.0.0.1]:47414 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1dzeV1-0002cl-33 for submit@debbugs.gnu.org; Wed, 04 Oct 2017 03:53:47 -0400 Original-Received: from eggs.gnu.org ([208.118.235.92]:46152) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1dzeV0-0002ca-85 for 28695@debbugs.gnu.org; Wed, 04 Oct 2017 03:53:46 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dzeUr-0006ok-UQ for 28695@debbugs.gnu.org; Wed, 04 Oct 2017 03:53:41 -0400 Original-Received: from fencepost.gnu.org ([2001:4830:134:3::e]:51412) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dzeUr-0006oY-Qr; Wed, 04 Oct 2017 03:53:37 -0400 Original-Received: from 84.94.185.246.cable.012.net.il ([84.94.185.246]:3714 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1dzeUr-0004qA-6T; Wed, 04 Oct 2017 03:53:37 -0400 In-reply-to: <8760bvd2w7.fsf@bryan.sh> (message from Bryan Gilbert on Tue, 03 Oct 2017 23:10:16 -0400) 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:137875 Archived-At: > From: Bryan Gilbert > Date: Tue, 03 Oct 2017 23:10:16 -0400 > > Step number 3 is a bit of a messy step, however by lowering the minimum > query size from 3 characters to 1 character makes the rendering lag spikes > painfully obvious. Thanks for the report. While we are waiting for the double-buffering issues to be looked at, you should be able to work around this problem by using the following snippet from NEWS: If your system has [the XDBE] extension, but an Emacs built with double buffering misbehaves on some displays you use, you can disable the feature by adding '(inhibit-double-buffering . t) to default-frame-alist. Or inject this parameter into the selected frame by evaluating this form: (modify-frame-parameters nil '((inhibit-double-buffering . t)))