From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#66117: 30.0.50; `find-buffer-visiting' is slow when opening large number of buffers Date: Sun, 17 Dec 2023 12:36:59 +0200 Message-ID: <83ttohjet0.fsf@gnu.org> References: <878r919qfh.fsf@localhost> <83plzas3pg.fsf@gnu.org> <87r0jqw8u9.fsf@localhost> <83jzpis08a.fsf@gnu.org> <87il52w744.fsf@localhost> <83fs06rz10.fsf@gnu.org> <87fs06w4ui.fsf@localhost> <83bkaurut9.fsf@gnu.org> <87o7esq319.fsf@localhost> <83bkasrb3f.fsf@gnu.org> <83wmtgpuyf.fsf@gnu.org> <871qboprh3.fsf@localhost> <87y1dwobey.fsf@localhost> <878r5v20gu.fsf@localhost> <83bkapl5zh.fsf@gnu.org> <83zfy9jkoh.fsf@gnu.org> <878r5tglwp.fsf@localhost> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="11476"; mail-complaints-to="usenet@ciao.gmane.io" Cc: dmitry@gutov.dev, 66117@debbugs.gnu.org, mattias.engdegard@gmail.com, monnier@iro.umontreal.ca To: Ihor Radchenko Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Sun Dec 17 11:38:13 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 1rEoXE-0002lH-Pz for geb-bug-gnu-emacs@m.gmane-mx.org; Sun, 17 Dec 2023 11:38:12 +0100 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rEoX4-0002ch-Q1; Sun, 17 Dec 2023 05:38:02 -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 1rEoX3-0002cF-7c for bug-gnu-emacs@gnu.org; Sun, 17 Dec 2023 05:38:01 -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 1rEoX2-0005jf-VY for bug-gnu-emacs@gnu.org; Sun, 17 Dec 2023 05:38:00 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1rEoX4-0000wf-3I for bug-gnu-emacs@gnu.org; Sun, 17 Dec 2023 05:38:02 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sun, 17 Dec 2023 10:38:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 66117 X-GNU-PR-Package: emacs Original-Received: via spool by 66117-submit@debbugs.gnu.org id=B66117.17028094473582 (code B ref 66117); Sun, 17 Dec 2023 10:38:02 +0000 Original-Received: (at 66117) by debbugs.gnu.org; 17 Dec 2023 10:37:27 +0000 Original-Received: from localhost ([127.0.0.1]:56591 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1rEoWU-0000vh-MC for submit@debbugs.gnu.org; Sun, 17 Dec 2023 05:37:27 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:44340) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1rEoWR-0000vR-Fa for 66117@debbugs.gnu.org; Sun, 17 Dec 2023 05:37:25 -0500 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rEoWK-0005fR-6S; Sun, 17 Dec 2023 05:37:16 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=MIME-version:References:Subject:In-Reply-To:To:From: Date; bh=IvBu0u5Qx6bL1lcB6sq38FhT3MG7eA5EnfQ5aTsnCtE=; b=DQJKqhWqrrGHgNqdv9ZH HXl27gVPNAEEOzpLqWWR1j3ewXgR9ia4blWb0335M+QW+1kOr8aNYFAoKGlgZf2EypAcwHdmIp7wZ YKvGRgN++hdtXmgeCKOCEnGaAAVVMr89vB7ncsAvVP9TFeaGV5DqQLfLUwkS7WZWofkg8csojxAOt BkUHEwjP8LmqwXutySv4FDBrS5D1NYObmMoGQx1/vLqF7pgDu+ebRip5zpuums/yMYJvlD9Xsmsi3 rA5B+M6CEX0pjbylXb6FKZaS08gX7KxpnXYVA8dz0s2umlLFlkaOtnWwgjLGX84Rbvx4fjtXZKFNh FTAXRM3jppE05Q==; In-Reply-To: <878r5tglwp.fsf@localhost> (message from Ihor Radchenko on Sun, 17 Dec 2023 10:31:50 +0000) 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:276410 Archived-At: > From: Ihor Radchenko > Cc: Stefan Monnier , dmitry@gutov.dev, > 66117@debbugs.gnu.org, mattias.engdegard@gmail.com > Date: Sun, 17 Dec 2023 10:31:50 +0000 > > Eli Zaretskii writes: > > >> AFAIK this is a purely internal change with no visible effect at the > >> ELisp level > > > It sounds like there will be some effect on some Lisp programs, at > > least in some cases, and if so, we should mention those cases, even if > > we think they are rare. > > We have discussed a number of approaches to handle the let-binding > performance and to handle sometimes-confusing behaviour of > `case-fold-search'. Most of them had problems with breaking the existing > behaviour or potentially causing unexpected side effects. Except the one > I used in the patch. > > The messages you linked to discuss problems with _other_ proposed > approaches. Maybe I'm confused, but won't this change have at least _some_ effect on Lisp programs? For example, what about this fragment from the ELisp manual, which describes the effect of make-variable-buffer-local: A peculiar wrinkle of this feature is that binding the variable (with ‘let’ or other binding constructs) does not create a buffer-local binding for it. Only setting the variable (with ‘set’ or ‘setq’), while the variable does not have a ‘let’-style binding that was made in the current buffer, does so. Will this case work the same after the change as it did before?