From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED.blaine.gmane.org!not-for-mail From: Michael Albinus Newsgroups: gmane.emacs.devel Subject: Re: emacs-27 b46c75b: xref-matches-in-files: Big Tramp speed-up Date: Wed, 08 Jan 2020 16:13:49 +0100 Message-ID: <87h816htg2.fsf@gmx.de> References: <20200107133628.1996.14412@vcs0.savannah.gnu.org> <20200107133629.2E736211A5@vcs0.savannah.gnu.org> <87y2uiiakq.fsf@gmx.de> <6255626b-0422-c1d2-af66-5cbd0f496719@yandex.ru> <87muayhw8q.fsf@gmx.de> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: blaine.gmane.org; posting-host="blaine.gmane.org:195.159.176.226"; logging-data="197891"; mail-complaints-to="usenet@blaine.gmane.org" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) Cc: emacs-devel@gnu.org, Dmitry Gutov To: Stefan Monnier Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Wed Jan 08 16:17:48 2020 Return-path: Envelope-to: ged-emacs-devel@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by blaine.gmane.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.89) (envelope-from ) id 1ipD4v-000JPl-Pg for ged-emacs-devel@m.gmane-mx.org; Wed, 08 Jan 2020 16:17:01 +0100 Original-Received: from localhost ([::1]:45582 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ipD4u-00058j-4J for ged-emacs-devel@m.gmane-mx.org; Wed, 08 Jan 2020 10:17:00 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:52624) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ipD20-0003QL-6K for emacs-devel@gnu.org; Wed, 08 Jan 2020 10:14:01 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ipD1v-0001JT-Lj for emacs-devel@gnu.org; Wed, 08 Jan 2020 10:13:59 -0500 Original-Received: from mout.gmx.net ([212.227.17.20]:52195) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1ipD1v-0001IL-8R for emacs-devel@gnu.org; Wed, 08 Jan 2020 10:13:55 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gmx.net; s=badeba3b8450; t=1578496430; bh=g6u8PpoQu3MqRU4HC+/1Lhj/CLvO8xFYIf/fgLojhdg=; h=X-UI-Sender-Class:From:To:Cc:Subject:References:Date:In-Reply-To; b=Ypi8B/8VHLU1Rpwrelb6qAJsT7bYDYyBrxVHMH2MT+gmg4djEGO2lyrm9pTWpsgaf joPsTRnUAcOeaGTunTad/svGQHkCVKx/lExuch6/ARtXuauKWIM013jjrRm3fphKsD jbYIXqegUhkhJi1zJgsiEKUu56Hf7Ls68KcJGfA4= X-UI-Sender-Class: 01bb95c1-4bf8-414a-932a-4f6e2808ef9c Original-Received: from detlef.gmx.de ([212.86.59.73]) by mail.gmx.com (mrgmx105 [212.227.17.168]) with ESMTPSA (Nemesis) id 1N6KUT-1jm50J1DNx-016cn1; Wed, 08 Jan 2020 16:13:50 +0100 In-Reply-To: (Stefan Monnier's message of "Wed, 08 Jan 2020 09:56:09 -0500") X-Provags-ID: V03:K1:C8o4NTm+Cs18Cdz6qEeMpCRw6V8IOwQpjYTib+eOb5cw/Yh+xhD GekTdBphdpgEKVsSDKneDNgfEvYGjIouXyy2rMNN28ySs8Z4UrMK2OeH+B9wDwuTtaoyjyq xNplyaDidXMPTkh0fVEDmoGiAHPqW4q/SqSOXX9GT4o0YffTpMWgY/IbTFWzT7TsgttZ5fA IH0yQwPeElrCe5tja0cRw== X-UI-Out-Filterresults: notjunk:1;V03:K0:43n3gxzTlzA=:i12JFLYQMt+4ooge2gtdRG hDscfmobdT2efu7QCMi8TjxD2GAuO37m3WVEJ8UCDpbV7hqkv8fisrTRXOW8W8xWOVlrvV56l 0UtW1V1bVOryjOoDJlf4OelMVc7weXm1rHjjJ3te0FfXZ0iBPK6U+lpZhi+CVwCZqyMzuw43q V/IBFtiwbzdRJHbrxLxcWDFI/EDAo7BeecUsXe+xNZ44R99UYJMJsYEx0BwVOUrIDzEkCLq5P m0X9LUAAN1A+hQ1J2S7bZ74edINOQDsZk5WApwMNxBoE864kP1AHK2t519Zw949lMD5rVt0Mg 0mpPaa3b4HUN6nHO/Ffn43spKL+Ns6sEJsqi6ujuzjU5evRQiDktPVxpppkfyPPUiyztBj8mn oGv1IJiq2Pye5FCvkUmuovZf/tTZw1+Ntuvq90p7TW0Wu69h4GiJW3PjfsT9aLIx16us5bfmz QffQUqdXMFy2lRPggN8sdR+/+nkFZNMYya5OzCJXXaOtv8SbgGdyiiTTbsq0U4HbxfOVzvVne pb/+yQFJy1xj/R5fQSR8sR/akbv7w+d/ebC9yngpq00JsP/ysVxHPwbfY9ixd1H4XWlR5aYi9 NgoqYI0CcvC+M6dcZrmt4WrH1f0vyzY0IcIjN/pO2OHkB589FW2o4yAVIhFfF2w6Yw3HszFXN H1opTamvA5WiiKMHJPNJ2EDgHJnAYpzkuzpyzEamtfM14jXRDHx8wTOjBvTBDtiECJSRiv88q R36KSf7ZtlWYE7pvEQ/Vq53/La36lBORU/UvBjtXyX4iKWAao8vy5AlflOsdFiOm0rGN9p9O X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 212.227.17.20 X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.org gmane.emacs.devel:244121 Archived-At: Stefan Monnier writes: >>> But allow me to state for the record once more that I'm puzzled by the >>> architectural choice we're working with here. >> I know that. Tramp follows the generic file name handler approach, as >> described in (info "(elisp) Magic File Names") . > > Could someone explain to me why `file-local-name` has to be so much slower > than `tramp-file-local-name`? Internally, `file-local-name' uses `file-remote-p'. The latter goes through the file name handler machinery, and `tramp-file-name-handler' eats time, according to Dmitry's measures. Usually not a problem, but remarkable when you apply it to some ten thousand files as in `xref-matches-in-files'. > Stefan Best regards, Michael.