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 19:37:48 +0000 Message-ID: <871qh1oy2b.fsf@localhost> References: <1fd5e3ed-e1c3-5d6e-897f-1d5d55e379fa@gutov.dev> <87wmyupvlw.fsf@localhost> <5c4d9bea-3eb9-b262-138a-4ea0cb203436@gutov.dev> <87tttypp2e.fsf@localhost> <87ilaepkaw.fsf@localhost> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="30511"; mail-complaints-to="usenet@ciao.gmane.io" Cc: Dmitry Gutov , 64735@debbugs.gnu.org To: Spencer Baugh Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Fri Jul 21 21:38:38 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 1qMvxT-0007ed-TE for geb-bug-gnu-emacs@m.gmane-mx.org; Fri, 21 Jul 2023 21:38:36 +0200 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qMvwy-0002mX-VQ; Fri, 21 Jul 2023 15:38:04 -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 1qMvwx-0002lq-Am for bug-gnu-emacs@gnu.org; Fri, 21 Jul 2023 15:38:03 -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 1qMvwx-0006EM-39 for bug-gnu-emacs@gnu.org; Fri, 21 Jul 2023 15:38:03 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1qMvwv-0003SG-VF for bug-gnu-emacs@gnu.org; Fri, 21 Jul 2023 15:38:01 -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 19:38:01 +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=B64735.168996826513250 (code B ref 64735); Fri, 21 Jul 2023 19:38:01 +0000 Original-Received: (at 64735) by debbugs.gnu.org; 21 Jul 2023 19:37:45 +0000 Original-Received: from localhost ([127.0.0.1]:34939 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1qMvwf-0003RY-9K for submit@debbugs.gnu.org; Fri, 21 Jul 2023 15:37:45 -0400 Original-Received: from mout02.posteo.de ([185.67.36.66]:54303) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1qMvwb-0003Qz-GK for 64735@debbugs.gnu.org; Fri, 21 Jul 2023 15:37:42 -0400 Original-Received: from submission (posteo.de [185.67.36.169]) by mout02.posteo.de (Postfix) with ESMTPS id A911D240106 for <64735@debbugs.gnu.org>; Fri, 21 Jul 2023 21:37:35 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=posteo.net; s=2017; t=1689968255; bh=PG6jDwRXJXDtlB0rwfiITmTxfc//YDZ9XPhZ+wjGZ6E=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version:From; b=MThnlsn4Jua+nJNT0byBa6dLtGEhNur/heQQyg/M1n99LYTCzINgay5vBOImtLf2M s1jgEsEQPDo9Sus28zkkEi6iIaMXFEhBUru3w7dEhC3rhQPX7Qg/PM8ki6I5TK/f/c B3sv4Wa1GoUFy/6e1rCiB6ohTeVkOT9yZT/n1YZ4uao/HpFqX2zPqKD7TyWyy6zEib 3AfE7Xhqz4cl6gSyRQIv6P5SHvNJFiTNsIb2mtv7vK5+w2nx51klXUPMJWy94ti2i+ 4+HBHsfXAELuKIkj6s+uBhkdYgvfVLyDAye09R8Wh881+QGlO/AFHKL4Irx889TTea TY0yOd/BUJ2dA== Original-Received: from customer (localhost [127.0.0.1]) by submission (posteo.de) with ESMTPSA id 4R70FV5zm0z9rxN; Fri, 21 Jul 2023 21:37:34 +0200 (CEST) In-Reply-To: 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:265759 Archived-At: Spencer Baugh writes: >> Does find use multiple CPU cores? > > Not on its own, but when it's running as a separate subprocess of Emacs, > that subprocess can (and will, on modern core-rich hardware) run on a > different CPU core from Emacs itself. That's a form of parallelism > which is very achievable for Emacs, and provides a big performance win. AFAIU, the way find is called by project.el is synchronous: (1) call find; (2) wait until it produces all the results; (3) process the results. In such scenario, there is no gain from subprocess. Is any part of Emacs is even using sentinels together with find? -- Ihor Radchenko // yantar92, Org mode contributor, Learn more about Org mode at . Support Org development at , or support my work at