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: More build times Date: Sat, 25 Jun 2022 17:16:39 +0300 Message-ID: <83y1xkakvs.fsf@gnu.org> References: <87czexj5tg.fsf@gnus.org> <87pmiwj1st.fsf@gnus.org> Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="37636"; mail-complaints-to="usenet@ciao.gmane.io" Cc: Emacs-devel@gnu.org To: Lars Ingebrigtsen Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Sat Jun 25 16:17:57 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 1o56bk-0009bM-Le for ged-emacs-devel@m.gmane-mx.org; Sat, 25 Jun 2022 16:17:56 +0200 Original-Received: from localhost ([::1]:49908 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1o56bj-0002Nq-Nj for ged-emacs-devel@m.gmane-mx.org; Sat, 25 Jun 2022 10:17:55 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:44524) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1o56aY-0000iI-2h for Emacs-devel@gnu.org; Sat, 25 Jun 2022 10:16:42 -0400 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:32858) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1o56aX-0007F5-O1; Sat, 25 Jun 2022 10:16:41 -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=AsKNSMHmtjS7uTjwVVjNz6LVCnovWsEoNmVc9OEfLZQ=; b=caM/UmDgR52H hZYA6y+AXU1QDCdebHyOMK662TiWAzS675pPAjjRFjV4Bp37EKw8KLCE4tgzZYsNk9wfRIKnil3xe QcY1zPlJihNynyyKGAx1AdWAw6yAVGKsfq64EtQUtO6gI7uwT0DcXACcHo++yjUyLVKRMHHtfOmGb /3JvZbHHqn6+ibNiEwVR0RacJu+puSg3cfpb+RoxiFnm+Wos+/FeoxZlh3So2TdvXKLXXa7P/ds0l 2mz8CKu8sLvNTwUM9Dwj3KvzcqniH0t05ujvl++BzIoz8+FgDHdjlLEGxyJabRNnG3nONOIWQ3qs6 MNJ+SUbS6a6aHZXvHha3XA==; Original-Received: from [87.69.77.57] (port=3873 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 1o56aX-0000yh-6s; Sat, 25 Jun 2022 10:16:41 -0400 In-Reply-To: <87pmiwj1st.fsf@gnus.org> (message from Lars Ingebrigtsen on Sat, 25 Jun 2022 15:44:02 +0200) 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:291603 Archived-At: > From: Lars Ingebrigtsen > Date: Sat, 25 Jun 2022 15:44:02 +0200 > > Lars Ingebrigtsen writes: > > > Anybody see the same phenomenon on their systems? (These are clean > > builds -- made from a fresh git clone.) > > It's a git artefact. For instance, this is what "git log" says: You mean the build times include the time it took Git to checkout the tree at a specific commit? Because otherwise I cannot understand how this: > No intervening commits or anything, but checking out f419de6eca and > 61a312ba0c give you vastly different trees -- presumably because of > merges and the like (since f419de6eca4 originated in emacs-28). could explain that the elapsed time increased whereas CPU time decreased: if you get more files that look modified to Make, you should see more CPU time invested into rebuilding. Am I missing something?