From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Manuel Giraud via "Bug reports for GNU Emacs, the Swiss army knife of text editors" Newsgroups: gmane.emacs.bugs Subject: bug#68006: 30.0.50; Image-mode speed Date: Mon, 25 Dec 2023 11:34:49 +0100 Message-ID: <87h6k6lgdy.fsf@ledu-giraud.fr> References: <87le9jlfd6.fsf@ledu-giraud.fr> <83wmt3bkla.fsf@gnu.org> Reply-To: Manuel Giraud Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="33342"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Cc: 68006@debbugs.gnu.org To: Eli Zaretskii Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Mon Dec 25 11:36:14 2023 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1rHiJh-0008QU-OX for geb-bug-gnu-emacs@m.gmane-mx.org; Mon, 25 Dec 2023 11:36:13 +0100 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rHiJS-0006W6-3o; Mon, 25 Dec 2023 05:35:58 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rHiJQ-0006Vy-0q for bug-gnu-emacs@gnu.org; Mon, 25 Dec 2023 05:35:56 -0500 Original-Received: from debbugs.gnu.org ([2001:470:142:5::43]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1rHiJP-0005bz-Oo for bug-gnu-emacs@gnu.org; Mon, 25 Dec 2023 05:35:55 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1rHiJV-0004gk-Vo for bug-gnu-emacs@gnu.org; Mon, 25 Dec 2023 05:36:01 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Manuel Giraud Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Mon, 25 Dec 2023 10:36:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 68006 X-GNU-PR-Package: emacs Original-Received: via spool by 68006-submit@debbugs.gnu.org id=B68006.170350050417941 (code B ref 68006); Mon, 25 Dec 2023 10:36:01 +0000 Original-Received: (at 68006) by debbugs.gnu.org; 25 Dec 2023 10:35:04 +0000 Original-Received: from localhost ([127.0.0.1]:54047 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1rHiIa-0004fI-AN for submit@debbugs.gnu.org; Mon, 25 Dec 2023 05:35:04 -0500 Original-Received: from ledu-giraud.fr ([51.159.28.247]:4164) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1rHiIV-0004el-FR for 68006@debbugs.gnu.org; Mon, 25 Dec 2023 05:35:03 -0500 DKIM-Signature: v=1; a=ed25519-sha256; c=simple/simple; s=ed25519; bh=M0f+dZn7 jySuGiucYsUqwzyogrfFmS/6f8ZGkmXohRA=; h=date:references:in-reply-to: subject:cc:to:from; d=ledu-giraud.fr; b=8WRD9bSisiNn4BvpRGXSOhb9MD0P9F lwONnK5/qU+WMQ38N8J3XcBYpBMzuze7Bc9rEs56uUSR6B99sAb5byBg== DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; s=rsa; bh=M0f+dZn7jySuGiuc YsUqwzyogrfFmS/6f8ZGkmXohRA=; h=date:references:in-reply-to:subject: cc:to:from; d=ledu-giraud.fr; b=kdRK8FZBBEMH2l6TATiwFbcbj6vC3JmzHc95Z8 RW6q6bujpDl+HWqy4GejmWA6wwb1s4sb+e1I1ORcRj+XnxXgLkDU9bMabWFkpq3ooR1gth R2Abqj4BuLhIQOTe6sn7kd4P2N0kT8gqjyKtWo0Y5mH1JCXqlW2PdHjhFVnYX90mGafUL4 6edtpmtgh6pS8lJo97uj9+rbKUrn7SMD5gkNP+rcccDBNYQGo8GQEleNFvzAd1K821XO0/ JgMeF/xADivghx8+z7pr5vIWP2HYH1xE9XKWXFYnG/rmZEu7QkqAL+l+ZDYBwOkFeF/O7N bhfqqEfKLD4i65+856BPG4tg== Original-Received: from computer (2630.fr [82.65.148.221]) by ledu-giraud.fr (OpenSMTPD) with ESMTPSA id bbc4e2ef (TLSv1.3:TLS_AES_256_GCM_SHA384:256:NO); Mon, 25 Dec 2023 11:34:50 +0100 (CET) In-Reply-To: <83wmt3bkla.fsf@gnu.org> (Eli Zaretskii's message of "Sun, 24 Dec 2023 19:01:53 +0200") X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list 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-mx.org@gnu.org Original-Sender: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.bugs:276841 Archived-At: Eli Zaretskii writes: [...] >> The call to 'image-flush' defeats the entire purpose of having an image >> cache. If I remove it, moving from previous/next is much more faster >> (once this image is in the cache, of course). Do you know why this code >> is like that? > > Look at its Git history, and look up discussions and bugs from those > times. > > AFAIR, one problem is that images can change behind our backs. But > maybe there are other reasons. So I trace this call back to dc255b24e30a (Chong Yidong, 2007-05-21). At that time 'image-flush' was called 'image-refresh' with the same functionality of uncaching an image given its spec. Before that, the whole image cache was cleared (fcfc4732e0d9, Chong Yidong, 2006-02-09). I did not find a bug reference and I still don't understand why it is/was needed. -- Manuel Giraud