From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.help Subject: Re: Accelerating Emacs? Date: Wed, 30 Nov 2005 23:43:02 -0500 Organization: Bell Sympatico Message-ID: <874q5tsa5c.fsf-monnier+gnu.emacs.help@gnu.org> References: <87acfps4rw.fsf@thalassa.informatimago.com> NNTP-Posting-Host: main.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: sea.gmane.org 1133413274 10260 80.91.229.2 (1 Dec 2005 05:01:14 GMT) X-Complaints-To: usenet@sea.gmane.org NNTP-Posting-Date: Thu, 1 Dec 2005 05:01:14 +0000 (UTC) Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Thu Dec 01 06:01:06 2005 Return-path: Original-Received: from lists.gnu.org ([199.232.76.165]) by ciao.gmane.org with esmtp (Exim 4.43) id 1EhgYu-00012B-Cz for geh-help-gnu-emacs@m.gmane.org; Thu, 01 Dec 2005 06:00:52 +0100 Original-Received: from localhost ([127.0.0.1] helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1EhgYt-0004SC-Ql for geh-help-gnu-emacs@m.gmane.org; Thu, 01 Dec 2005 00:00:51 -0500 Original-Path: shelby.stanford.edu!newsfeed.stanford.edu!postnews.google.com!news4.google.com!border1.nntp.dca.giganews.com!nntp.giganews.com!wns13feed!worldnet.att.net!207.35.177.252!nf3.bellglobal.com!nf1.bellglobal.com!nf2.bellglobal.com!news20.bellglobal.com.POSTED!not-for-mail Original-Newsgroups: gnu.emacs.help User-Agent: Gnus/5.11 (Gnus v5.11) Emacs/22.0.50 (gnu/linux) Cancel-Lock: sha1:TXqMBqALcFd/an9Y6UXOMs6RISw= Original-Lines: 12 Original-NNTP-Posting-Host: 67.71.25.91 Original-X-Complaints-To: abuse@sympatico.ca Original-X-Trace: news20.bellglobal.com 1133412182 67.71.25.91 (Wed, 30 Nov 2005 23:43:02 EST) Original-NNTP-Posting-Date: Wed, 30 Nov 2005 23:43:02 EST Original-Xref: shelby.stanford.edu gnu.emacs.help:135947 Original-To: help-gnu-emacs@gnu.org X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.help:31553 Archived-At: > One could write an emacs-lisp compiler to native code and write even > the optimized parts in emacs-lisp. Problem is: with dynamic scoping and buffer-local variables, you're in for a big disappointment if you think compiling to native code will give you anywhere close to the performance of C code. To get any kind of real performance, you'll need to either switch to lexical scoping, or add a sophisticated (whole program) analysis to figure out where lexical scope can be used without affecting the end result. Stefan