From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#23431: 25.0.93; EWW hangs Date: Tue, 03 May 2016 22:31:15 +0300 Message-ID: <83mvo7j5vg.fsf@gnu.org> References: <87bn4nx1iq.wl-jch@pps.univ-paris-diderot.fr> <87zis75ibn.fsf@gnus.org> <87d1p35e2g.fsf@gnus.org> <877ffb2c9a.fsf@gnus.org> Reply-To: Eli Zaretskii NNTP-Posting-Host: plane.gmane.org X-Trace: ger.gmane.org 1462303962 13699 80.91.229.3 (3 May 2016 19:32:42 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Tue, 3 May 2016 19:32:42 +0000 (UTC) Cc: 23431@debbugs.gnu.org, jch@pps.univ-paris-diderot.fr To: Lars Ingebrigtsen Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Tue May 03 21:32:31 2016 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1axg3a-0006tb-6X for geb-bug-gnu-emacs@m.gmane.org; Tue, 03 May 2016 21:32:30 +0200 Original-Received: from localhost ([::1]:43075 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1axg3W-0003tQ-Ay for geb-bug-gnu-emacs@m.gmane.org; Tue, 03 May 2016 15:32:26 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:58151) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1axg3N-0003gc-1Q for bug-gnu-emacs@gnu.org; Tue, 03 May 2016 15:32:23 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1axg3B-0008Af-Bf for bug-gnu-emacs@gnu.org; Tue, 03 May 2016 15:32:11 -0400 Original-Received: from debbugs.gnu.org ([208.118.235.43]:51601) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1axg3B-00087u-8X for bug-gnu-emacs@gnu.org; Tue, 03 May 2016 15:32:05 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1axg37-0006QY-St for bug-gnu-emacs@gnu.org; Tue, 03 May 2016 15:32:01 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Tue, 03 May 2016 19:32:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 23431 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 23431-submit@debbugs.gnu.org id=B23431.146230391624696 (code B ref 23431); Tue, 03 May 2016 19:32:01 +0000 Original-Received: (at 23431) by debbugs.gnu.org; 3 May 2016 19:31:56 +0000 Original-Received: from localhost ([127.0.0.1]:35705 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1axg2z-0006QA-6A for submit@debbugs.gnu.org; Tue, 03 May 2016 15:31:56 -0400 Original-Received: from eggs.gnu.org ([208.118.235.92]:38675) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1axg2u-0006Pt-M1 for 23431@debbugs.gnu.org; Tue, 03 May 2016 15:31:52 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1axg2f-0007lE-5A for 23431@debbugs.gnu.org; Tue, 03 May 2016 15:31:40 -0400 Original-Received: from fencepost.gnu.org ([2001:4830:134:3::e]:57936) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1axg2P-0007WB-Ow; Tue, 03 May 2016 15:31:17 -0400 Original-Received: from 84.94.185.246.cable.012.net.il ([84.94.185.246]:1585 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_128_CBC_SHA1:128) (Exim 4.82) (envelope-from ) id 1axg2J-0006X3-9k; Tue, 03 May 2016 15:31:11 -0400 In-reply-to: <877ffb2c9a.fsf@gnus.org> (message from Lars Ingebrigtsen on Tue, 03 May 2016 21:05:21 +0200) 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:117682 Archived-At: > From: Lars Ingebrigtsen > Date: Tue, 03 May 2016 21:05:21 +0200 > Cc: 23431@debbugs.gnu.org, Juliusz Chroboczek > > > It's 2036x1426, but is resized to never be more than ~ 1/4 of that size > > even in a full-screen Firefox. So I don't think that gif by itself is > > too indicative. > > Yeah, it's an extreme GIF, but Emacs shouldn't become (almost) unusable > in the presence of such images... I mean, you have to kill the eww > buffer to get anything done. > > You can get pretty much the same effect by visiting a page that contains > a number of smaller animated images. I've now run a longer profile, with image.el loaded (not .elc), and the profile is this: - timer-event-handler 2905 90% - apply 2905 90% - image-animate-timeout 2858 88% - if 2858 88% - progn 2858 88% - let* 2858 88% - image-multi-frame-p 2858 88% - if 2858 88% - progn 2858 88% let* 2858 88% + url-queue-run-queue 47 1% IOW, it insists that the problem is in the call to image-metadata. Which probably mean most of the time is spent in lookup_image? Can you run Emacs under prof to see what happens on the C level? Btw, if I wait for a while (maybe 20 sec), the slowness disappears, and Emacs becomes responsive again, although the animation still goes on. So perhaps what causes this is some initial processing? (I have no idea what's involved in displaying an animated GIF.)