From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx009.vodafonemail.xion.oxcs.net (mx009.vodafonemail.xion.oxcs.net [153.92.174.39]) by sourceware.org (Postfix) with ESMTPS id 62C733857C4A for ; Sat, 15 Aug 2020 15:07:04 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org 62C733857C4A Authentication-Results: sourceware.org; dmarc=none (p=none dis=none) header.from=nexgo.de Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=Stromeko@nexgo.de Received: from vsmx002.vodafonemail.xion.oxcs.net (unknown [192.168.75.192]) by mta-6-out.mta.xion.oxcs.net (Postfix) with ESMTP id 36625604CF3 for ; Sat, 15 Aug 2020 15:07:03 +0000 (UTC) Received: from Gertrud (unknown [84.160.193.16]) by mta-6-out.mta.xion.oxcs.net (Postfix) with ESMTPA id 092D9604CA9 for ; Sat, 15 Aug 2020 15:07:00 +0000 (UTC) From: Achim Gratz To: cygwin@cygwin.com Subject: Re: [ANNOUNCEMENT] emacs 27.1-1 References: Date: Sat, 15 Aug 2020 17:07:00 +0200 In-Reply-To: (Ken Brown via Cygwin-announce's message of "Tue, 11 Aug 2020 12:48:56 -0400") Message-ID: <87pn7srlrf.fsf@Rainer.invalid> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.3 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-VADE-STATUS: LEGIT X-Spam-Status: No, score=-1.5 required=5.0 tests=BAYES_00, KAM_DMARC_STATUS, KAM_NUMSUBJECT, RCVD_IN_MSPIKE_H3, RCVD_IN_MSPIKE_WL, SPF_HELO_NONE, SPF_PASS, TXREP autolearn=no autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on server2.sourceware.org X-BeenThere: cygwin@cygwin.com X-Mailman-Version: 2.1.29 Precedence: list List-Id: General Cygwin discussions and problem reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 15 Aug 2020 15:07:06 -0000 Ken Brown via Cygwin-announce writes: > The following packages have been uploaded to the Cygwin distribution: > > * emacs-27.1-1 > * emacs-common-27.1-1 > * emacs-X11-27.1-1 > * emacs-w32-27.1-1 > * emacs-lucid-27.1-1 This release seems to have a serious performance regression when using diff-mode on large diffs with long lines (e.g. created by comparing the logs of two compilations), especially when combined with toggle-truncate-lines. Emacs becomes unresponsive with 100% CPU load when scrolling fast, sometimes for several seconds. The CPU time seems to be spent in redisplay(). Regards, Achim. -- +<[Q+ Matrix-12 WAVE#46+305 Neuron microQkb Andromeda XTk Blofeld]>+ Factory and User Sound Singles for Waldorf rackAttack: http://Synth.Stromeko.net/Downloads.html#WaldorfSounds