From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: "Pascal J. Bourguignon" Newsgroups: gmane.emacs.help Subject: Re: HOWTO: lightning fast Emacs on Linux multicore Date: Sun, 16 Nov 2014 03:55:29 +0100 Organization: Informatimago Message-ID: <8761efyhum.fsf@kuiper.lan.informatimago.com> References: <871tpdl29g.fsf@debian.uxu> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Trace: ger.gmane.org 1416106823 18283 80.91.229.3 (16 Nov 2014 03:00:23 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sun, 16 Nov 2014 03:00:23 +0000 (UTC) To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Sun Nov 16 04:00:18 2014 Return-path: Envelope-to: geh-help-gnu-emacs@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 1Xpq4Y-0001HI-Gg for geh-help-gnu-emacs@m.gmane.org; Sun, 16 Nov 2014 04:00:18 +0100 Original-Received: from localhost ([::1]:42627 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Xpq4Y-0004Xg-6R for geh-help-gnu-emacs@m.gmane.org; Sat, 15 Nov 2014 22:00:18 -0500 Original-Path: usenet.stanford.edu!fu-berlin.de!uni-berlin.de!individual.net!not-for-mail Original-Newsgroups: gnu.emacs.help Original-Lines: 27 Original-X-Trace: individual.net fFDBPgVzxVpKE7YEx448awbs0LBY06Y2bbV/YTlpPWBe8ltUxP Cancel-Lock: sha1:ZDQ5ZmUyYWRlOGM2YTAyM2QyODA1NDQxMGY3NGU5YTEwNzI3MmJjNQ== sha1:AbNOMtCBojHi2y96g7Pwf/xvNDQ= Face: iVBORw0KGgoAAAANSUhEUgAAADAAAAAwAQMAAABtzGvEAAAABlBMVEUAAAD///+l2Z/dAAAA oElEQVR4nK3OsRHCMAwF0O8YQufUNIQRGIAja9CxSA55AxZgFO4coMgYrEDDQZWPIlNAjwq9 033pbOBPtbXuB6PKNBn5gZkhGa86Z4x2wE67O+06WxGD/HCOGR0deY3f9Ijwwt7rNGNf6Oac l/GuZTF1wFGKiYYHKSFAkjIo1b6sCYS1sVmFhhhahKQssRjRT90ITWUk6vvK3RsPGs+M1RuR mV+hO/VvFAAAAABJRU5ErkJggg== X-Accept-Language: fr, es, en User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.3 (gnu/linux) Original-Xref: usenet.stanford.edu gnu.emacs.help:208670 X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.14 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.org@gnu.org Original-Sender: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.help:100948 Archived-At: Emanuel Berg writes: > A couple of months ago I got a multicore computer. > Better yet, it is a dualcore :) If you want to have fun, perhaps implementing a few emacs lisp library functions in parallel (multi-threaded), could speed things up. You'd have to find out what operations (particularly on big buffers) are slow and parallelizable. For example, replace-string could split its start/end range, (check the cuts for occurences) and then process each range in parallel. Similarly, replace-regexp and fontifying which is often thought to be slow, could benefit (taking the same precautions around the cuts). A lot of code that use iterative search (re-search-forward) could probably be upgraded, using a function (such as re-all-matches) that would perform the search in parallel on the different ranges. -- __Pascal Bourguignon__ http://www.informatimago.com/ “The factory of the future will have only two employees, a man and a dog. The man will be there to feed the dog. The dog will be there to keep the man from touching the equipment.” -- Carl Bass CEO Autodesk