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: Wed, 26 Jan 2022 21:32:22 +0200 Message-ID: <83mtjifg3d.fsf@gnu.org> References: <87zgnvyb5y.fsf@gnus.org> <87bl03j10s.fsf@gnus.org> <9D116A4B-622F-4C80-83E6-2CDD7ED9AD25@acm.org> <58bb8030d532070ed420@heytings.org> <838rv7mzn4.fsf@gnu.org> <58bb8030d5ec3a6bde9f@heytings.org> <837darmygd.fsf@gnu.org> <58bb8030d59733b52b8d@heytings.org> <83r18zkmd5.fsf@gnu.org> <835yq9ls7j.fsf@gnu.org> <058b682b11240176288f@heytings.org> <83h79tjd2f.fsf@gnu.org> <058b682b11f58780b580@heytings.org> <83v8y8ij39.fsf@gnu.org> <6a5bb5a08b3d764611f9@heytings.org> <83pmoghuho.fsf@gnu.org> <83pmoefhmo.fsf@gnu.org> Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="1933"; mail-complaints-to="usenet@ciao.gmane.io" Cc: mattiase@acm.org, gregory@heytings.org, acm@muc.de, larsi@gnus.org, emacs-devel@gnu.org To: Stefan Monnier Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Wed Jan 26 20:33:58 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 1nCo3J-0000Fx-M0 for ged-emacs-devel@m.gmane-mx.org; Wed, 26 Jan 2022 20:33:57 +0100 Original-Received: from localhost ([::1]:33598 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nCo3I-0005sS-AS for ged-emacs-devel@m.gmane-mx.org; Wed, 26 Jan 2022 14:33:56 -0500 Original-Received: from eggs.gnu.org ([209.51.188.92]:46376) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nCo1w-0003oD-IB for emacs-devel@gnu.org; Wed, 26 Jan 2022 14:32:32 -0500 Original-Received: from [2001:470:142:3::e] (port=40122 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 1nCo1u-0007ML-NB; Wed, 26 Jan 2022 14:32:30 -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=bMUXRVrIsq/G+Z00MDujnTuTBNaEx0TZkb9DaB27Ie0=; b=riKXeYZMqwtr 2hm56cMEN/Fr0ZyJ78uBV+hnNEJhOzsZUkVkV31/oxbINqq5AeoBG9WQY2SLsbX8dJb1xofMtvtjg P/f47aaUDlUj0+CWrJz0YpmlZ87QJIA/FNe6+ZdFde1Dn2h80ixaeGLpCJqcHqahFa3ybmFp3j2N7 2zlxVlXGI4aKSSEmfZ7qnN6ytMvUhaeGKH6Oq/XlXw6Rp6RgDFNGTwRq67Dp3iyZhnC6UbaaY1D66 nfnqlwUs4LW3a4fmbtnPFMDasGC6lJO+csjrPr7h6Et4KHMc/15yUQOTnh58NCfKYG5tKXEeN8/7a /AoH8KplJdWyGGQVuvutpg==; Original-Received: from [87.69.77.57] (port=3849 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 1nCo1u-0007CZ-6C; Wed, 26 Jan 2022 14:32:30 -0500 In-Reply-To: (message from Stefan Monnier on Wed, 26 Jan 2022 14:14:26 -0500) 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:285452 Archived-At: > From: Stefan Monnier > Cc: Gregory Heytings , mattiase@acm.org, > larsi@gnus.org, emacs-devel@gnu.org, acm@muc.de > Date: Wed, 26 Jan 2022 14:14:26 -0500 > > >> The problem is that, IME, such benchmarks do not show anything when the > >> slowdown is not significant enough (> 10%), because the measurements vary > >> a lot depending on external factors. > > Which external factors are those? > > On the machines I use the dynamic CPU frequency changes are an important > such factor. Then either disable that when benchmarking, or acknowledge that your machine is useless for benchmarking.