From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: ynyaaa@gmail.com Newsgroups: gmane.emacs.bugs Subject: bug#26051: 25.1; overlays may make emacs very slow Date: Mon, 13 Mar 2017 20:18:55 +0900 Message-ID: <87inndqva8.fsf@gmail.com> References: <87varh3xql.fsf@gmail.com> NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: blaine.gmane.org 1489403964 32397 195.159.176.226 (13 Mar 2017 11:19:24 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Mon, 13 Mar 2017 11:19:24 +0000 (UTC) Cc: 26051@debbugs.gnu.org To: Eli Zaretskii Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Mon Mar 13 12:19:17 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 1cnO0Q-0006oU-2m for geb-bug-gnu-emacs@m.gmane.org; Mon, 13 Mar 2017 12:19:14 +0100 Original-Received: from localhost ([::1]:51345 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cnO0R-0005T8-5f for geb-bug-gnu-emacs@m.gmane.org; Mon, 13 Mar 2017 07:19:15 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:35531) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cnO0I-0005Sq-80 for bug-gnu-emacs@gnu.org; Mon, 13 Mar 2017 07:19:07 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1cnO0E-0002Eo-3D for bug-gnu-emacs@gnu.org; Mon, 13 Mar 2017 07:19:06 -0400 Original-Received: from debbugs.gnu.org ([208.118.235.43]:55065) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1cnO0D-0002Ec-VH for bug-gnu-emacs@gnu.org; Mon, 13 Mar 2017 07:19:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1cnO0D-0004Xt-PM for bug-gnu-emacs@gnu.org; Mon, 13 Mar 2017 07:19:01 -0400 X-Loop: help-debbugs@gnu.org Resent-From: ynyaaa@gmail.com Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Mon, 13 Mar 2017 11:19:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 26051 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 26051-submit@debbugs.gnu.org id=B26051.148940393517460 (code B ref 26051); Mon, 13 Mar 2017 11:19:01 +0000 Original-Received: (at 26051) by debbugs.gnu.org; 13 Mar 2017 11:18:55 +0000 Original-Received: from localhost ([127.0.0.1]:53264 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1cnO07-0004XY-4u for submit@debbugs.gnu.org; Mon, 13 Mar 2017 07:18:55 -0400 Original-Received: from mail-pf0-f178.google.com ([209.85.192.178]:35750) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1cnO05-0004XI-KM for 26051@debbugs.gnu.org; Mon, 13 Mar 2017 07:18:54 -0400 Original-Received: by mail-pf0-f178.google.com with SMTP id j5so68205166pfb.2 for <26051@debbugs.gnu.org>; Mon, 13 Mar 2017 04:18:53 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:in-reply-to:date:message-id:mime-version; bh=FuzT/rQ9ML8cioZZirdDIkdkTLv0T3+i7itXaWLBAow=; b=l9l0KOUuDHtLSovgtzS7VhCgqyT/rvfZzBxepY/9sNx4S6r/tHvjdq/+If06ctbwjW h/JkOnHiyMGDRd3gx1IF/goZFgcflFvuZm0I2B31BzqCcoFexJXJ87N73qZZYwDTlFGF Ogjfge1Q4fv6SP1AZb2pG4ROf1MlmRXEUKvpSdDqmFXVNJqTu9eXhb51pXnBrwGiVt/Z jU38qImVPHlmK5T0GlSLxy6hPwWvKOE1rA33lhfzg5RIGndXw2o1RCu4K6K1hph8kL7F ocqauZWu1yY2vNv5VYfnw9OyH5qDehWdRhYNx/pxNSS74znDqDchxVI2Zb78f8JD5WVq 6YOA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:in-reply-to:date:message-id :mime-version; bh=FuzT/rQ9ML8cioZZirdDIkdkTLv0T3+i7itXaWLBAow=; b=UJ/88mO+xUPmDLCVDhBXgOg2VJZvQwmNHDRcczFXIMbKOirgF9cEUPe8WgDzE7ECB+ 8+0bDbsRs8YL6Z9p4fKATmfs+HVChw7FAfKSLnBdEvHSlwlBWzOkD4SbcUDDUaKtTh3W 6CLkd8bBO/CP0CcCqLCkmRsmy4KO4ZfiCcrBdzPIDLozT+dOYnFRMKvI3O3dPNWUwE0E ibWmBJwpxFwFk8SvrIvtQNJVlKPXczblvA96n3DeUZMxXiUQfQzODNZ9+KtQ17zVfut1 Phf7/eckB8+hyNNbD3xHs/6Z8m0YAGIDE7B0fiXnGDBXunDqhVsrmLP2gU5sh8JGl3ug PFDg== X-Gm-Message-State: AMke39mPaXFUatjiqv8K1PwyzdSsp+yPL4eDmryZGrQFmTmtnPsY7d8uCFBYQXUqaPjgbw== X-Received: by 10.84.231.198 with SMTP id g6mr47293378pln.20.1489403927562; Mon, 13 Mar 2017 04:18:47 -0700 (PDT) Original-Received: from PNUT-PC (east24-p58.eaccess.hi-ho.ne.jp. [218.42.167.59]) by smtp.gmail.com with ESMTPSA id z189sm32812854pgb.3.2017.03.13.04.18.46 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Mon, 13 Mar 2017 04:18:47 -0700 (PDT) In-Reply-To: <83fuiicx98.fsf@gnu.org> (Eli Zaretskii's message of "Sun, 12 Mar 2017 17:47:47 +0200") 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:130533 Archived-At: Eli Zaretskii writes: > My guess is because we need to compute the byte position of the > markers that store the overlay's beginning and end. But that's just a > guess. I tested with markers. Markers make emacs slow too(a little bit faster than overlays). M-x occur may make a buffer have thousands of markers, and make point motion commands slow. (benchmark 1 '(with-temp-buffer (let ((n 65536)) (save-excursion (dotimes (i n) (insert (format "\u00E1%d\n" i)))) (dotimes (i n) (make-overlay (point) (point)) (forward-line))))) =>"Elapsed time: 129.815000s (0.277000s in 17 GCs)" (benchmark 1 '(with-temp-buffer (let ((n 65536) tmp) (save-excursion (dotimes (i n) (insert (format "\u00E1%d\n" i)))) (dotimes (i n) ;; protect against garbage collection (setq tmp (cons (list (point-marker) (point-marker)) tmp)) (forward-line))))) =>"Elapsed time: 90.038000s (0.272000s in 16 GCs)" > Btw, your original recipe will produce a much faster redisplay if you > set bidi-paragraph-direction of the buffer to left-to-right, instead > of leaving it at its default nil value. Sorry I didn't mention this > earlier. It is a good solution for me, thanks.