From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Ihor Radchenko Newsgroups: gmane.emacs.devel Subject: Re: Shrinking the C core Date: Sun, 20 Aug 2023 19:44:20 +0000 Message-ID: <877cpp7b3f.fsf@localhost> References: <20230809094655.793FC18A4654@snark.thyrsus.com> <87fs4pkkqi.fsf@dataswamp.org> <87jztzkgct.fsf@dataswamp.org> <87y1if8j8t.fsf@linux-m68k.org> <87y1ifi9fv.fsf@dataswamp.org> <87zg2uqdmv.fsf@localhost> <87edk3gbh3.fsf@dataswamp.org> <87jztvnuyb.fsf@localhost> <875y5bdutt.fsf@dataswamp.org> <87y1i6e1uh.fsf@localhost> <874jkub40o.fsf@dataswamp.org> <87jztqdw2l.fsf@localhost> <87msym9i4r.fsf@dataswamp.org> <877cpp914t.fsf@localhost> <835y59wmp1.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="7559"; mail-complaints-to="usenet@ciao.gmane.io" Cc: ams@gnu.org, incal@dataswamp.org, emacs-devel@gnu.org To: Eli Zaretskii Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Sun Aug 20 21:44:53 2023 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 1qXoM0-0001l4-H0 for ged-emacs-devel@m.gmane-mx.org; Sun, 20 Aug 2023 21:44:52 +0200 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qXoL6-0006xJ-K2; Sun, 20 Aug 2023 15:43:56 -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 1qXoL5-0006wx-Da for emacs-devel@gnu.org; Sun, 20 Aug 2023 15:43:55 -0400 Original-Received: from mout01.posteo.de ([185.67.36.65]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qXoL1-0003vS-HD for emacs-devel@gnu.org; Sun, 20 Aug 2023 15:43:55 -0400 Original-Received: from submission (posteo.de [185.67.36.169]) by mout01.posteo.de (Postfix) with ESMTPS id A9FD4240028 for ; Sun, 20 Aug 2023 21:43:49 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=posteo.net; s=2017; t=1692560629; bh=eAM3bTNaqPdFZfTxKwJWmFOa0/byOLKwpX18ouPeNVw=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version:From; b=Nj1CVT8WdKUGjiBKuQQAX6Ca9VOaWLFDoVYm17gdkIsR5uqXuX6vXwQgKpyf0YrcJ 9ZN6Qqjs1eWZAAlSStC7TO9cyodXZaHxYMSmEurTBZybziIw7KULLzt2/Utn9fA+St ZhsnVOXun0oDhLFCcZ+xgf3OJY7sMJkDaWCJ24N+hY34GiO99L1Y+2CTg1Qb7cPL/i xaVG7LGiZXx3b1cwUWB7crzbOsTUsi0BEYfS+bQa5cE/E/LjlTmDkPjaDa6eFzwH/E b33ZVIPpFnXGGwgifztArEIFdumddH9yV/eFFUQqTZsTHBiF5GY2sd+vFrnoTWc4mt oQhGoDsE44sXQ== Original-Received: from customer (localhost [127.0.0.1]) by submission (posteo.de) with ESMTPSA id 4RTQyr6FPmz6txW; Sun, 20 Aug 2023 21:43:48 +0200 (CEST) In-Reply-To: <835y59wmp1.fsf@gnu.org> Received-SPF: pass client-ip=185.67.36.65; envelope-from=yantar92@posteo.net; helo=mout01.posteo.de X-Spam_score_int: -53 X-Spam_score: -5.4 X-Spam_bar: ----- X-Spam_report: (-5.4 / 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, RCVD_IN_MSPIKE_H5=-1, RCVD_IN_MSPIKE_WL=-0.01, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable 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-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.devel:308991 Archived-At: Eli Zaretskii writes: > 'car' does have a dedicated bytecode op-code, but that op-code simply > calls XCAR, exactly like Fcar and CAR above do: Then, I conclude that the example with CL version of `car' is actually not worse in Elisp: >> It should be quite obvious why SBCL is faster than the Emacs Lisp VM >> (or even native). Just look at this call to (car "foo"), and compare >> what happens in Emacs. >> >> * (disassemble 'foo) >> ; disassembly for FOO >> ; Size: 166 bytes. Origin: #x225D873F ; FOO >> ... In fact, the SBCL version looks more complex. -- Ihor Radchenko // yantar92, Org mode contributor, Learn more about Org mode at . Support Org development at , or support my work at