From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.devel Subject: Re: CC Mode -> Tree sitter challenge Date: Sat, 05 Nov 2022 10:34:25 -0400 Message-ID: References: <87v8nu1mt1.fsf@thornhill.no> <83eduh4vcf.fsf@gnu.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="15631"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (gnu/linux) Cc: Theodor Thornhill , emacs-devel@gnu.org, casouri@gmail.com To: Eli Zaretskii Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Sat Nov 05 15:35:23 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 1orKGZ-0003qQ-26 for ged-emacs-devel@m.gmane-mx.org; Sat, 05 Nov 2022 15:35:23 +0100 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1orKFo-0006EC-73; Sat, 05 Nov 2022 10:34:36 -0400 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 1orKFm-0006D2-0m for emacs-devel@gnu.org; Sat, 05 Nov 2022 10:34:34 -0400 Original-Received: from mailscanner.iro.umontreal.ca ([132.204.25.50]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1orKFk-00024x-8r; Sat, 05 Nov 2022 10:34:33 -0400 Original-Received: from pmg1.iro.umontreal.ca (localhost.localdomain [127.0.0.1]) by pmg1.iro.umontreal.ca (Proxmox) with ESMTP id CDB6A100201; Sat, 5 Nov 2022 10:34:28 -0400 (EDT) Original-Received: from mail01.iro.umontreal.ca (unknown [172.31.2.1]) by pmg1.iro.umontreal.ca (Proxmox) with ESMTP id 4B78B1000F8; Sat, 5 Nov 2022 10:34:27 -0400 (EDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=iro.umontreal.ca; s=mail; t=1667658867; bh=j9LlD2X0N26nsN8mT4tr9OFSHrirWLU2+Z0kuD8ssHo=; h=From:To:Cc:Subject:In-Reply-To:References:Date:From; b=JpXeYDQYkJRJHQT/ancIgSP0BycD7a2Ajb+HW0+YgsukPpP2lBJLNJYrn9fxG6s/l mJOshj4ygxm3F/q5ucJtVjyBYgc/UP+LHEShQGRn4hdOfItJWKhGxyE5bgSlyww7n7 0PyScPWmT8rpXO5vBTu7XZjUprMfX2tA8X6Aw+vSxgHikwqv4ZeqNshGuo89HBlO76 cltK1OpJCVKiGtLTiHGBuvJX+B6kgNBwAzcsupdjTwd+cPeFNnP7cnYdbvhEzAZ1kQ kE9hncYDU7W+UbWmsYJQqTKN4fb4rGuwbEWTw9cwtYGI3yFA3lktcv1/UyuPIo5dfL 5EElxwKBdz22w== Original-Received: from pastel (65-110-220-202.cpe.pppoe.ca [65.110.220.202]) by mail01.iro.umontreal.ca (Postfix) with ESMTPSA id 16C771203F3; Sat, 5 Nov 2022 10:34:27 -0400 (EDT) In-Reply-To: <83eduh4vcf.fsf@gnu.org> (Eli Zaretskii's message of "Sat, 05 Nov 2022 11:13:52 +0200") Received-SPF: pass client-ip=132.204.25.50; envelope-from=monnier@iro.umontreal.ca; helo=mailscanner.iro.umontreal.ca X-Spam_score_int: -42 X-Spam_score: -4.3 X-Spam_bar: ---- X-Spam_report: (-4.3 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 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: , Original-Sender: "Emacs-devel" Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.devel:299205 Archived-At: > We usually use something like the below: > > (defun scroll-up-benchmark () > (interactive) > (let ((oldgc gcs-done) > (oldtime (float-time))) > (condition-case nil (while t (scroll-up) (redisplay)) > (error (message "GCs: %d Elapsed time: %f seconds" > (- gcs-done oldgc) (- (float-time) oldtime)))))) > > (defun scroll-up-by-40-benchmark () > (interactive) > (let ((oldgc gcs-done) > (oldtime (float-time))) > (condition-case nil (while t (scroll-up 40) (redisplay)) > (error (message "GCs: %d Elapsed time: %f seconds" > (- gcs-done oldgc) (- (float-time) oldtime)))))) See also the `elisp-benchmark` package, especially its `benchmarks/elb-scroll.el` which shows how to do that in batch mode. We could tweak that file to define not just `elb-scroll-entry` but also `elb-cc-scroll-entry` to compare the time between the use of `elb-smie-mode` (whose purpose is not to show how it compares to CC-mode's C mode but rather to have a non-varying code across Emacs versions, so we can see the effect of other factors than the mode itself) and CC-mode's `c-mode` and another using your new `c-mode`. Stefan