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: Time to merge scratch/correct-warning-pos into master, perhaps? Date: Sun, 16 Jan 2022 16:21:54 +0200 Message-ID: <83mtjvyd4t.fsf@gnu.org> References: <83mtjwzwkb.fsf@gnu.org> <87r198ytog.fsf@gnus.org> <87lezfzy5h.fsf@gnus.org> <83sftnyilw.fsf@gnu.org> Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="29650"; mail-complaints-to="usenet@ciao.gmane.io" Cc: larsi@gnus.org, emacs-devel@gnu.org To: Alan Mackenzie Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Sun Jan 16 15:23:23 2022 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 1n96RG-0007Xd-Ao for ged-emacs-devel@m.gmane-mx.org; Sun, 16 Jan 2022 15:23:22 +0100 Original-Received: from localhost ([::1]:57174 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1n96RF-0000gv-7Z for ged-emacs-devel@m.gmane-mx.org; Sun, 16 Jan 2022 09:23:21 -0500 Original-Received: from eggs.gnu.org ([209.51.188.92]:33496) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1n96Q4-0008KI-PM for emacs-devel@gnu.org; Sun, 16 Jan 2022 09:22:08 -0500 Original-Received: from [2001:470:142:3::e] (port=48536 helo=fencepost.gnu.org) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1n96Q3-0003uh-Pv; Sun, 16 Jan 2022 09:22:07 -0500 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=o3/RGj1ZciBUfFkovMuWpFmFJmieC96SXcOa80YThE4=; b=R+kl8+gtmjig cqfO9CBj8E/LIKw0IE2IYo/PtbDH89ea1Fxw0Gd9nuDpvEjnVvhRxMo9s08Gm543DwGYfhbESozBc VE0msBPlimV8ifAd0nafDZs59z+p28W/nZ4fbGVC39EVfAUhiiAfZ1jQF52wTK9V2lHXPtkiLaLZJ tkYV/lv8Lw4V87lYo5eeLyj5BZcOa/GXQWcV7KveWSBd+lLxUnZA/J/HbkOEowcABBB0V4W1DwtQ0 xcpFcrKbMTJ0Chyst5/Mhbbu0JVlFiSm5sTRG9PrDfrQTcyrlVhd4huKdmaLBaXym6hJPx6y0n15e a1DcjJ3Aa0WdTqp+GIPVwQ==; Original-Received: from [87.69.77.57] (port=3597 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 1n96Q3-00041S-RB; Sun, 16 Jan 2022 09:22:08 -0500 In-Reply-To: (message from Alan Mackenzie on Sun, 16 Jan 2022 14:06:59 +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:284820 Archived-At: > Date: Sun, 16 Jan 2022 14:06:59 +0000 > Cc: Lars Ingebrigtsen , emacs-devel@gnu.org > From: Alan Mackenzie > > > Since this is glaringly inconsistent with the timings Alan published, > > I think it would be a good idea to measure the difference for each of > > the*.el files, because it could be that a couple of outliers skew the > > entire picture. That is, put the 'time' command inside the 'do', and > > don't use -j8; then compare the outputs. > > On the branch, the byte compiler is doing more work than on master. My > timings from yesterday were about the speed of Emacs in daily use rather > than while compiling. Are you saying that the measured slowdown is specific to the byte-compiler, and will not affect other uses of Lisp, or affect them much less heavily? Because the byte-compiler is just another Lisp program, it doesn't in general do anything an arbitrary Lisp program won't do. Can you point to the places in the byte-compiler that do significantly more work on the branch? Can you show a profile where this could be seen quantitatively?