From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Lars Ingebrigtsen Newsgroups: gmane.emacs.devel Subject: Re: Time to merge scratch/correct-warning-pos into master, perhaps? Date: Sat, 05 Feb 2022 07:08:16 +0100 Message-ID: <87ilttg81b.fsf@gnus.org> References: <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> <6a5bb5a08b6337d733c5@heytings.org> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="19737"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (gnu/linux) Cc: Alan Mackenzie , Eli Zaretskii , emacs-devel@gnu.org, Stefan Monnier , mattiase@acm.org To: Gregory Heytings Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Sat Feb 05 07:10:14 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 1nGEH0-0004yK-Et for ged-emacs-devel@m.gmane-mx.org; Sat, 05 Feb 2022 07:10:14 +0100 Original-Received: from localhost ([::1]:42182 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nGEGy-00016y-TG for ged-emacs-devel@m.gmane-mx.org; Sat, 05 Feb 2022 01:10:12 -0500 Original-Received: from eggs.gnu.org ([209.51.188.92]:44680) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nGEFL-0000OJ-Nq for emacs-devel@gnu.org; Sat, 05 Feb 2022 01:08:31 -0500 Original-Received: from [2a01:4f9:2b:f0f::2] (port=59692 helo=quimby.gnus.org) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nGEFK-0002uo-2r; Sat, 05 Feb 2022 01:08:31 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnus.org; s=20200322; h=Content-Type:MIME-Version:Message-ID:In-Reply-To:Date: References:Subject:Cc:To:From:Sender:Reply-To:Content-Transfer-Encoding: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=xlqiZsGRlPO4+NnSQlk0VegkikHFuK5aFwA4A2GRhn4=; b=Sd6LC7BgBaHEyeIB3LKn8oN7rq PKXpIGSjxhZmlXcmFW0eHf5KyyDXU2h5FlfntZIvZJzH/HbKkQhwgJTJHcJvTtRNscEt++m8FXxYk o9kHDIndhgZAyDPcdz5lC8yZYi46LCg0YKno3t6iWmQJg0QIs1+lZJ4wWApB/CV/COdQ=; Original-Received: from [84.212.220.105] (helo=giant) by quimby.gnus.org with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1nGEF9-0004vS-EO; Sat, 05 Feb 2022 07:08:22 +0100 Face: iVBORw0KGgoAAAANSUhEUgAAADAAAAAwBAMAAAClLOS0AAAABGdBTUEAALGPC/xhBQAAACBj SFJNAAB6JgAAgIQAAPoAAACA6AAAdTAAAOpgAAA6mAAAF3CculE8AAAAFVBMVEXh39ixp6Xk4tyC paqLtdhwmln///9J99hjAAAAAWJLR0QGYWa4fQAAAAlwSFlzAAAuIwAALiMBeKU/dgAAAAd0SU1F B+YCBQYEAs84KfcAAAFwSURBVDjLfZTLbgIxDEUdq907PPZOKj4Addi3mmFf2ub/fwXbeUwyAowE wSf32glmAB6HW5cEjggAowZbyt6ZvAAGZFamKduATKqKliuSuAmUlwJs32t42SweuFUEvxNnFYRd n2cvINd21AMnwJpCWeIgEJCbcufmxfBtIFpTsrT+3xaJDcjJDmhX6lqyn8syVyAte78vwHcKiB2Y nymWBqAD85Tt2jlCVRwqIANYweVvBDHsDVxSmgarorimlP4bgAImEyTzOouVTQE6A0mjgjJCL8Es 6UsarazG1RRTD/SuHgF8CQ4FfOWSGeglApwM2O8OHvLJWe4mBs3f8kQA5QllnR5W8FNGBYtCp4qP An7X6VpnWsE6qrCC92fglI4r4I58CMCuhJwjQ74BxQFYf/IJsdkONZiHfw90u/LWDRAfbUU8eQBM rDdKAcl1TwaMQVDwDXB7jgTnKByBkITVpFZgzz448Lwjj52gPWm6uAPVZ4pWjBaclQAAAA5lWElm SUkqAAgAAAAAAAAAAABvylxHAAAAJXRFWHRkYXRlOmNyZWF0ZQAyMDIyLTAyLTA1VDA2OjA0OjAy KzAwOjAwErAaGwAAACV0RVh0ZGF0ZTptb2RpZnkAMjAyMi0wMi0wNVQwNjowNDowMiswMDowMGPt oqcAAAAASUVORK5CYII= X-Now-Playing: Genesis's _Duke_: "Cul-De-Sac" In-Reply-To: (Gregory Heytings's message of "Fri, 04 Feb 2022 00:11:46 +0000") X-Host-Lookup-Failed: Reverse DNS lookup failed for 2a01:4f9:2b:f0f::2 (failed) Received-SPF: pass client-ip=2a01:4f9:2b:f0f::2; envelope-from=larsi@gnus.org; helo=quimby.gnus.org X-Spam_score_int: -35 X-Spam_score: -3.6 X-Spam_bar: --- X-Spam_report: (-3.6 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_MED=-2.3, RDNS_NONE=0.793, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action 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:285884 Archived-At: Gregory Heytings writes: > I attach the detailed results for each of the 389 tests. Each test > has been executed 2000 (two thousand) times, again on an unloaded > up-to-date Debian bookworm computer. [...] > If you remove that test from the calculations, you will see that the > slowdown is actually 17%, that is, the same slowdown as that of byte > compilation. Thanks, that's interesting, but it doesn't really answer the question of why it's so hard to see these performance regressions in actual use. I tried to benchmark Alan's patches before they went in by doing things like measuring shr DOM rendering, and saw essentially no measurable difference. And 17% vs "essentially nothing" is a big gap. So it's still not clear what's being measured. Is ert doing something that's triggering these slowdowns? Is it only measurable in "emacs -batch"? Is there something else that makes the test suites so much slower while we're not seeing that in real usage? -- (domestic pets only, the antidote for overdose, milk.) bloggy blog: http://lars.ingebrigtsen.no