From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Ihor Radchenko Newsgroups: gmane.emacs.bugs Subject: bug#64735: 29.0.92; find invocations are ~15x slower because of ignores Date: Fri, 21 Jul 2023 12:20:21 +0000 Message-ID: <87fs5hmp6i.fsf@localhost> References: <1fd5e3ed-e1c3-5d6e-897f-1d5d55e379fa@gutov.dev> <87wmyupvlw.fsf@localhost> <5c4d9bea-3eb9-b262-138a-4ea0cb203436@gutov.dev> <87tttypp2e.fsf@localhost> <837cqu35lw.fsf@gnu.org> <87o7k6pmk3.fsf@localhost> <834jly351p.fsf@gnu.org> <87lefapkdx.fsf@localhost> <831qh230h5.fsf@gnu.org> <87wmyu8mi0.fsf@localhost> <83wmyu1l1k.fsf@gnu.org> <87fs5hemi1.fsf@gmx.de> <83edl11qzn.fsf@gnu.org> <874jlxebz5.fsf@gmx.de> <87lef9mqio.fsf@localhost> <87edl1scbw.fsf@gmx.de> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="30328"; mail-complaints-to="usenet@ciao.gmane.io" Cc: dmitry@gutov.dev, Eli Zaretskii , 64735@debbugs.gnu.org, sbaugh@janestreet.com To: Michael Albinus Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Fri Jul 21 14:21:19 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 1qMp8H-0007Xo-77 for geb-bug-gnu-emacs@m.gmane-mx.org; Fri, 21 Jul 2023 14:21:17 +0200 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qMp88-0003mW-9W; Fri, 21 Jul 2023 08:21:08 -0400 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 1qMp83-0003lx-Qg for bug-gnu-emacs@gnu.org; Fri, 21 Jul 2023 08:21:04 -0400 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 1qMp82-0008T0-UB for bug-gnu-emacs@gnu.org; Fri, 21 Jul 2023 08:21:03 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1qMp82-0007ba-Q6 for bug-gnu-emacs@gnu.org; Fri, 21 Jul 2023 08:21:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Ihor Radchenko Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Fri, 21 Jul 2023 12:21:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 64735 X-GNU-PR-Package: emacs Original-Received: via spool by 64735-submit@debbugs.gnu.org id=B64735.168994201829136 (code B ref 64735); Fri, 21 Jul 2023 12:21:02 +0000 Original-Received: (at 64735) by debbugs.gnu.org; 21 Jul 2023 12:20:18 +0000 Original-Received: from localhost ([127.0.0.1]:60779 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1qMp7K-0007Zs-0l for submit@debbugs.gnu.org; Fri, 21 Jul 2023 08:20:18 -0400 Original-Received: from mout02.posteo.de ([185.67.36.66]:46591) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1qMp7I-0007ZZ-5b for 64735@debbugs.gnu.org; Fri, 21 Jul 2023 08:20:17 -0400 Original-Received: from submission (posteo.de [185.67.36.169]) by mout02.posteo.de (Postfix) with ESMTPS id 6FB43240104 for <64735@debbugs.gnu.org>; Fri, 21 Jul 2023 14:20:10 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=posteo.net; s=2017; t=1689942010; bh=bj6Pbz+tDJVbigiJXKSn27FKQVj2T2ypIk4qjwHBemg=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version:From; b=Tl118zM9dAHlbHJ0BbDzoHuNpHaAkkr0QNcRrGsOt7cnArfror8mydG6wGgmK1801 QHJLOSE76EnHiTjjN1uqEolGAzpH4gbYkTR3lme1tRSLIj3YiHXfvfHImsPEdN5UU5 YFpVmq97Ul+nkydjL4J13ePpasH8ao9GL/RJuE2m1qChkRPQ8dMIC7R+kZfJr8Omjz b9ArkNcuKjijNAuasT6tmTqy4SqfmBHJ3pU+9a8AQQqrfhz7vDW6jCYq9FYBcmuEzu p5IlFuhyQkUnsgPThP9hTdCxqcDVY6gfLX3/u0FozTCPGtq+k6UxOYQI51h1bZN4+A fGsaAWJskFlwQ== Original-Received: from customer (localhost [127.0.0.1]) by submission (posteo.de) with ESMTPSA id 4R6pXn32Qlz9rxM; Fri, 21 Jul 2023 14:20:09 +0200 (CEST) In-Reply-To: <87edl1scbw.fsf@gmx.de> 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:265681 Archived-At: Michael Albinus writes: >> Or, alternatively, may we fence the regexp matches in >> `file-name-handler-alist' behind boolean switches? >> I examined what the actual handlers do, and I can see >> `jka-compr-inhibit', `epa-inhibit', `tramp-archive-enabled', >> and `tramp-mode' are used to force-execute the original handler. If we >> could make Emacs perform these checks earlier, the whole expensive >> regexp matching phase could be bypassed. > > Hmm, this would mean to extend the file-name-handler-alist spec. Instead > of a regexp to check, we would need to allow a function call or > alike. Don't know whether this pays for optimization. The question is: what is more costly (a) matching complex regexp && call function or (b) call function (lambda (fn) (when (and foo (match-string- ... fn)) ...)) > And there is also the case, that due to inhibit-file-name-handlers and > inhibit-file-name-operation we can allow a remote file name operation > for a given function, and disable it for another function. Tramp uses > this mechanism. The general flag tramp-mode is not sufficient for this > scenario. I am not sure if I understand completely, but it does not appear that this is used often during ordinary file operations that do not involve tramp. -- Ihor Radchenko // yantar92, Org mode contributor, Learn more about Org mode at . Support Org development at , or support my work at