From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Jean Louis Newsgroups: gmane.emacs.help Subject: Re: Emacs 30.0 warning from `cl-pushnew' and `memql' Date: Wed, 28 Dec 2022 23:24:55 +0300 Message-ID: References: <878ritgaty.fsf@dataswamp.org> <87o7rprvia.fsf@web.de> <87zgb913fg.fsf@dataswamp.org> <87ilhveo2s.fsf@web.de> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="37931"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Mutt/2.2.9+54 (af2080d) (2022-11-21) Cc: help-gnu-emacs@gnu.org To: Michael Heerdegen Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Wed Dec 28 21:37:14 2022 Return-path: Envelope-to: geh-help-gnu-emacs@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 1pAdAn-0009gM-36 for geh-help-gnu-emacs@m.gmane-mx.org; Wed, 28 Dec 2022 21:37:13 +0100 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pAd9x-00013N-8B; Wed, 28 Dec 2022 15:36:21 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pAd9m-00012I-3v for help-gnu-emacs@gnu.org; Wed, 28 Dec 2022 15:36:10 -0500 Original-Received: from stw1.rcdrun.com ([217.170.207.13]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pAd9i-0001kM-Bq for help-gnu-emacs@gnu.org; Wed, 28 Dec 2022 15:36:09 -0500 Original-Received: from localhost ([::ffff:102.85.220.49]) (AUTH: PLAIN admin, TLS: TLS1.3,256bits,ECDHE_RSA_AES_256_GCM_SHA384) by stw1.rcdrun.com with ESMTPSA id 000000000010383E.0000000063ACA8B5.000058DC; Wed, 28 Dec 2022 13:36:05 -0700 Mail-Followup-To: Michael Heerdegen , help-gnu-emacs@gnu.org Content-Disposition: inline In-Reply-To: <87ilhveo2s.fsf@web.de> Received-SPF: pass client-ip=217.170.207.13; envelope-from=bugs@gnu.support; helo=stw1.rcdrun.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.help:142009 Archived-At: * Michael Heerdegen [2022-12-28 15:01]: > I think the interpretation of the question "Could there be a better > default comparison function?", in the sense that `eql' is a bit nicer > than `eq' for specific value types, is valid, especially when > considering that `cl-pushnew' is often used for configuration stuff or > other purposes where speed is not crucial. Michael, what is the fastest way to add element on stack of the list elements? Let us say I am adding only strings, would this be faster than `push': (setq my-list '()) (setq my-list (cons (quote "Word") my-list)) By the way, how do I go to make this right? ------------------------------------------- (setq my-list '()) (benchmark 1000 (setq my-list (cons "My string" my-list))) as it gives error that "My string" is invalid function. Do I need to do something like: (benchmark 1000 (prog1 nil (setq my-list (cons (quote "Word") my-list)))) (benchmark 10000000 (prog1 nil (setq my-list (cons (quote "Word") my-list)))) ➜ "Elapsed time: 0.823678s" (benchmark 10000000 (prog1 nil (push "Word" my-list))) ➜ "Elapsed time: 0.824388s" So there is no much difference apparently. -- Jean Take action in Free Software Foundation campaigns: https://www.fsf.org/campaigns In support of Richard M. Stallman https://stallmansupport.org/