From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.devel Subject: Re: Loading souce Elisp faster Date: Mon, 25 Feb 2013 18:54:12 -0500 Message-ID: References: NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1361836462 18015 80.91.229.3 (25 Feb 2013 23:54:22 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Mon, 25 Feb 2013 23:54:22 +0000 (UTC) Cc: emacs-devel@gnu.org To: Richard Stallman Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Tue Feb 26 00:54:41 2013 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1UA7sW-0002Ji-La for ged-emacs-devel@m.gmane.org; Tue, 26 Feb 2013 00:54:40 +0100 Original-Received: from localhost ([::1]:48000 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UA7sB-00063X-V7 for ged-emacs-devel@m.gmane.org; Mon, 25 Feb 2013 18:54:19 -0500 Original-Received: from eggs.gnu.org ([208.118.235.92]:33641) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UA7s8-00063R-GZ for emacs-devel@gnu.org; Mon, 25 Feb 2013 18:54:18 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UA7s7-0000MP-12 for emacs-devel@gnu.org; Mon, 25 Feb 2013 18:54:16 -0500 Original-Received: from ironport2-out.teksavvy.com ([206.248.154.182]:42019) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UA7s6-0000Lx-QD; Mon, 25 Feb 2013 18:54:14 -0500 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: Av4EABK/CFHO+KLv/2dsb2JhbABEvw4Xc4IeAQEEAVYjBQsLDiYSFBgNJIgeBsEtkQoDiGGcGYFegxU X-IPAS-Result: Av4EABK/CFHO+KLv/2dsb2JhbABEvw4Xc4IeAQEEAVYjBQsLDiYSFBgNJIgeBsEtkQoDiGGcGYFegxU X-IronPort-AV: E=Sophos;i="4.84,565,1355115600"; d="scan'208";a="2447712" Original-Received: from 206-248-162-239.dsl.teksavvy.com (HELO pastel.home) ([206.248.162.239]) by ironport2-out.teksavvy.com with ESMTP/TLS/ADH-AES256-SHA; 25 Feb 2013 18:54:12 -0500 Original-Received: by pastel.home (Postfix, from userid 20848) id D5C626C0A9; Mon, 25 Feb 2013 18:54:12 -0500 (EST) In-Reply-To: (Richard Stallman's message of "Mon, 25 Feb 2013 16:51:36 -0500") User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.3.50 (gnu/linux) X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 206.248.154.182 X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.14 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.org@gnu.org Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.devel:157358 Archived-At: > The fast path (used by elc) parses the data straight from the file, > whereas the slow path loads the file into a buffer (which includes any > decoding if needed) and only then passes the resulting byte-stream to > the parser. > If the coding system were known in advance to be utf-8, it would > still need to be read into a buffer, decoded, and parsed from there. No, the .elc files are encoded in utf-8 and yet they're read straight from the file without going through a buffer. Stefan