From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED.blaine.gmane.org!not-for-mail From: Lars Ingebrigtsen Newsgroups: gmane.emacs.bugs Subject: bug#32728: bug#32729: Xemacs 23 times as fast as GNU Emacs Date: Sun, 13 Oct 2019 19:47:16 +0200 Message-ID: <87k198bkrf.fsf@gnus.org> References: <871rviobu2.fsf@gnus.org> <83imouo1jp.fsf@gnu.org> <87y2xplufp.fsf@gnus.org> <83r23hkqr3.fsf@gnu.org> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: blaine.gmane.org; posting-host="blaine.gmane.org:195.159.176.226"; logging-data="109133"; mail-complaints-to="usenet@blaine.gmane.org" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.0.50 (gnu/linux) Cc: layer@franz.com, benjamin.benninghofen@airbus.com, 32729@debbugs.gnu.org, 32728@debbugs.gnu.org To: Eli Zaretskii Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Sun Oct 13 19:48:12 2019 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([209.51.188.17]) by blaine.gmane.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.89) (envelope-from ) id 1iJhyV-000SGr-By for geb-bug-gnu-emacs@m.gmane.org; Sun, 13 Oct 2019 19:48:11 +0200 Original-Received: from localhost ([::1]:41224 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iJhyT-0004Ng-RM for geb-bug-gnu-emacs@m.gmane.org; Sun, 13 Oct 2019 13:48:09 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:51022) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iJhyN-0004Ko-2q for bug-gnu-emacs@gnu.org; Sun, 13 Oct 2019 13:48:04 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1iJhyL-0005TO-V2 for bug-gnu-emacs@gnu.org; Sun, 13 Oct 2019 13:48:03 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:56264) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1iJhyL-0005TD-Rz for bug-gnu-emacs@gnu.org; Sun, 13 Oct 2019 13:48:01 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1iJhyL-0007sY-Oo for bug-gnu-emacs@gnu.org; Sun, 13 Oct 2019 13:48:01 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Lars Ingebrigtsen Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sun, 13 Oct 2019 17:48:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 32728 X-GNU-PR-Package: emacs Original-Received: via spool by 32728-submit@debbugs.gnu.org id=B32728.157098884230230 (code B ref 32728); Sun, 13 Oct 2019 17:48:01 +0000 Original-Received: (at 32728) by debbugs.gnu.org; 13 Oct 2019 17:47:22 +0000 Original-Received: from localhost ([127.0.0.1]:36850 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1iJhxh-0007rV-Ox for submit@debbugs.gnu.org; Sun, 13 Oct 2019 13:47:21 -0400 Original-Received: from quimby.gnus.org ([80.91.231.51]:34924) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1iJhxg-0007rL-R8; Sun, 13 Oct 2019 13:47:21 -0400 Original-Received: from cm-84.212.202.86.getinternet.no ([84.212.202.86] helo=marnie) by quimby.gnus.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.89) (envelope-from ) id 1iJhxc-0003Vk-T2; Sun, 13 Oct 2019 19:47:19 +0200 In-Reply-To: <83r23hkqr3.fsf@gnu.org> (Eli Zaretskii's message of "Sun, 13 Oct 2019 11:13:04 +0300") 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: 209.51.188.43 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:169126 Archived-At: Eli Zaretskii writes: >> >> (Note: Don't visit the " *zeroes*" buffer after this, because that will >> >> hang Emacs totally. I guess the long-line display problem hasn't been >> >> fixed after all?) >> > >> > It's unrelated. Did you try to insert that into a unibyte buffer >> > instead? >> >> Nope. Does Emacs need to do a lot of recomputing when going to >> multibyte buffers? > > Of course: we try to display the multibyte text as characters, search > for fonts, invoke bidi reordering, etc. I tried: (benchmark-run 1 (call-process "dd" nil (with-current-buffer (get-buffer-create " *zeroes*") (set-buffer-multibyte nil) (current-buffer)) nil "if=/dev/zero" "bs=4096" "count=250000")) and then jumped to the buffer, and Emacs hung anyway. (That is, I killed Emacs after a minute, so I don't know whether it would have recovered after a while...) -- (domestic pets only, the antidote for overdose, milk.) bloggy blog: http://lars.ingebrigtsen.no