From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: martin rudalics Newsgroups: gmane.emacs.bugs Subject: bug#28695: 26.0.60; Rendering lag spikes caused by double-buffering on Linux Date: Wed, 04 Oct 2017 11:04:49 +0200 Message-ID: <59D4A431.7010801@gmx.at> References: <8760bvd2w7.fsf@bryan.sh> NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Trace: blaine.gmane.org 1507107997 12331 195.159.176.226 (4 Oct 2017 09:06:37 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Wed, 4 Oct 2017 09:06:37 +0000 (UTC) To: Bryan Gilbert , 28695@debbugs.gnu.org Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Wed Oct 04 11:06:29 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 1dzfd6-0001pq-EI for geb-bug-gnu-emacs@m.gmane.org; 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Wed, 04 Oct 2017 11:04:59 +0200 In-Reply-To: <8760bvd2w7.fsf@bryan.sh> X-Provags-ID: V03:K0:pehzfpNYvlpv3QC9bJWul/FaPoxfRCOa5ig0VHzF1akHvvPlp1I MRMdmWFOtrjc13+1l/dCxaSFIc+8kfLvi1j/kmHnkBZbyf4fF3FWU2q42PxfhWlM19cuWzH XkH5uqxS4+d0b6qZ8q82f6JnUrEfB0CsW6dFO9IKdXwRScbJoUOpzPG0+yCueLNNs6Py66f 93IyDMhBcSSj1eVcYsV+g== X-UI-Out-Filterresults: notjunk:1;V01:K0:e7HO/uwXkCg=:gXPyUp9HsraXHtMf9aUwFr uQvxU33fvTI25qlWd+QU2iz8g/KTT0AjXGjHfRSqSCUQB9wha9gsDzVcxKmT0zDu7GtERM1kn ZWL06r3HY9qhBKvNBZE4Ha/bNwSLmcgu+7BHl8rTt5wYvxsNsNz5dDRjE+xuNn9zlMScbZdpp EqhvVaNZqr40xuVdZg+qX0mBP7veUrmncJou8+Zei2HZELriEXW3kQX1y6h95k3mi/j6LB+rD Xa8rGN6Esr1i6I8/FmSTQue/dBIDSWObqI9x2nQoP9hAuKeQiM4MTgNUvb+BkPP07ZpPFP9va 3st6toio5dy6OCsq8R3Dcs3LwyL3VtIV/uHKAdD6KvrSzxpkyzXpFhKNee1MNk9AuShYJDDDh PpJl22Gnn5yLr7Z77kqR0vxu2xc3ifUKiAPN6KayL1GUj+LPvesx1f0WDwwjKuRSyIW9Cm94N 0TJMasuBMFYySQBoOFBHA1p1bv6dKf/AS0fvSBpVlGKD5aFNFk+NpzigbNr4HE50m0RbCITyb b45OlYyuvws8bv3PgWggN4z7m+dRN0Brxx3kLq+VsNdQkuRXXcsh0Ji308HH6oHP7dxMtqfCk 3h1ye0+8BN0fBONLwZvXpyPsELXfXxwx+eip7SX7EYWA9uMaR3W5sY6u7unwjvRvMakXhvhf1 6cH7m1FCzVgWe0A66GVT5ZyeDlZ+uu1t9tIZua0CnmCVYjDTc0NwN9SP3JnT4Rh65Y0XogxHR CdnBrdY5/1Gbm89D4b8m6dDOpP/mDwKl8y2Cjvaf4uqObj5wFq5HLVSOggUwOP7PtF1VSwzn 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:137887 Archived-At: > I was able to verify that reverting to the previous commit before > double-buffering was added completely removed the problem. I've made two > short screencasts, one before the double-buffer commit and the other > after. Unless this problem (and that of Bug#28652) get fixed, we should either disable double buffering by default or add some special warning so users do not have to spend their time investigating this issue. martin