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: setting an optimal value of gc-cons-threshold Date: Fri, 07 Sep 2007 00:58:56 -0400 Message-ID: References: NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: sea.gmane.org 1189143761 2740 80.91.229.12 (7 Sep 2007 05:42:41 GMT) X-Complaints-To: usenet@sea.gmane.org NNTP-Posting-Date: Fri, 7 Sep 2007 05:42:41 +0000 (UTC) To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Fri Sep 07 07:42:41 2007 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by lo.gmane.org with esmtp (Exim 4.50) id 1ITWc2-0002J8-S1 for geh-help-gnu-emacs@m.gmane.org; Fri, 07 Sep 2007 07:42:39 +0200 Original-Received: from localhost ([127.0.0.1] helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1ITWc1-0006se-2Y for geh-help-gnu-emacs@m.gmane.org; Fri, 07 Sep 2007 01:42:37 -0400 Original-Path: shelby.stanford.edu!headwall.stanford.edu!newsfeed.news2me.com!nx01.iad01.newshosting.com!newshosting.com!216.196.98.140.MISMATCH!border1.nntp.dca.giganews.com!nntp.giganews.com!bcklog2.nntp.dca.giganews.com!nntp.umontreal.ca!news.umontreal.ca.POSTED!not-for-mail Original-NNTP-Posting-Date: Thu, 06 Sep 2007 23:58:56 -0500 Original-Newsgroups: gnu.emacs.help User-Agent: Gnus/5.11 (Gnus v5.11) Emacs/23.0.50 (gnu/linux) Cancel-Lock: sha1:IegV+no3nuo+mfazkuGpPrZ+4E8= Original-Lines: 16 X-Usenet-Provider: http://www.giganews.com Original-NNTP-Posting-Host: 132.204.27.213 Original-X-Trace: sv3-s3yRDudn3w8ohPQ6KUP3+hMQNPbQjepRdj8G2a9RLFT5sb0PgUGezu17jL6b2VNr8RwlAtlGjkP7wwU!yESodpVtrHus57Y+3TLZ/I4uC84D/YVTlnBulE0FBajiFrpYt8DMZmtc9T287zGuuY8vohIqlBvd!pk/nFeB1ak+yYmRiAQ== Original-X-Complaints-To: abuse@umontreal.ca X-DMCA-Complaints-To: abuse@umontreal.ca X-Abuse-and-DMCA-Info: Please be sure to forward a copy of ALL headers X-Abuse-and-DMCA-Info: Otherwise we will be unable to process your complaint properly X-Postfilter: 1.3.35 Original-Xref: shelby.stanford.edu gnu.emacs.help:151766 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:47290 Archived-At: > I found quite a few people in their .emacs setting gc-cons-threshold to > a different value than the default 400000. > I did. > I wonder if there is a guidance for setting this value. > So do I. I remember increasing it after several Gnus crashes but > I did it without reflexion on what value to put here :) There used to be some benefit to setting it higher for large Emacs sessions (where GC can take a long time) since it would reduce the frequency of those GCs. In Emacs-22, this is not needed any more because of the new `gc-cons-percentage' variable which automatically causes the limit to grow as the Emacs process grows, thus preserving a more or less constant GC overhead. Stefan