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.devel Subject: Re: master 2c79a8f 2/2: Use posix_spawn if possible. Date: Tue, 02 Nov 2021 22:15:29 +0200 Message-ID: <83tuguiaam.fsf@gnu.org> References: <83wnx4lq3b.fsf@gnu.org> <86k0swut21.fsf@gmail.com> <861rf4nnuj.fsf@gmail.com> <83czyng78z.fsf@gnu.org> <87eej3wwbp.fsf@linux-m68k.org> Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="31301"; mail-complaints-to="usenet@ciao.gmane.io" Cc: p.stephani2@gmail.com, mituharu@math.s.chiba-u.ac.jp, emacs-devel@gnu.org To: Alan Third Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Tue Nov 02 21:16:27 2021 Return-path: Envelope-to: ged-emacs-devel@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 1mi0Cp-0007xv-85 for ged-emacs-devel@m.gmane-mx.org; Tue, 02 Nov 2021 21:16:27 +0100 Original-Received: from localhost ([::1]:45180 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mi0Co-00037N-2T for ged-emacs-devel@m.gmane-mx.org; Tue, 02 Nov 2021 16:16:26 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:39860) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mi0C2-0002Pd-Rt for emacs-devel@gnu.org; Tue, 02 Nov 2021 16:15:38 -0400 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:54600) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mi0Bz-0002oR-0c; Tue, 02 Nov 2021 16:15:35 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=References:Subject:In-Reply-To:To:From:Date: mime-version; bh=+iKZgcG5ToQYB7V9GAaRQGEwvEguFo+wIgMlt352Y2Q=; b=q/vYb+uWy2vc xtaYvPGmE4EZYdRVvwhsxH1BfcKUSSniXi1ckRYGG4FDfO5Mbaw09MPTH7GFmIKjMGWRf6/kca6B9 sHl2LTx7UNaP4yaE2zof4+1ZLq++JSvMMl79teQ/qktYaGV1UcLKY3wgCqXql5GzwWGhCqNWyBmHO a5gwyPhM/QmGZRUcCiaWttDvuIXKJZKvZg37iTvOiCRuK60JiWywdYQgyP7UcRpzana1n83MhXaoa 5b8NEBSaXhcmOQJw0rWeXbmTh9K8H2nYT/klOwaES65wtuuW6yfDTH6iRVKncfIyYL9valcIimJnS Mt0qPxm2d877Kpm+y/2fkg==; Original-Received: from [87.69.77.57] (port=4856 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mi0Bx-0002C7-Ee; Tue, 02 Nov 2021 16:15:34 -0400 In-Reply-To: (message from Alan Third on Tue, 2 Nov 2021 19:58:10 +0000) X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.29 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.io gmane.emacs.devel:278535 Archived-At: > Date: Tue, 2 Nov 2021 19:58:10 +0000 > From: Alan Third > Cc: Philipp Stephani > > When we put in the fix to use vfork on macOS back in Emacs 26 the > measured difference between fork and vfork was something like 15x. Now > Apple have turned vfork into fork I guess we're back to the same > situation. Packages that make heavy use of external processes, such as > Magit, are badly hit by this slow down. > > Is there anything we need to do to get scratch/posix-spawn-no-gnulib > merged into master (or even emacs-28)? Does it solve the problem? And which builds does it affect?