From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Chong Yidong Newsgroups: gmane.emacs.devel Subject: Re: Change in process.c Date: Wed, 28 Mar 2007 11:11:25 -0400 Message-ID: <87abxxwggy.fsf@stupidchicken.com> References: <87ejna5qwa.fsf@stupidchicken.com> <460A73BE.8020304@gnu.org> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: sea.gmane.org 1175094731 10454 80.91.229.12 (28 Mar 2007 15:12:11 GMT) X-Complaints-To: usenet@sea.gmane.org NNTP-Posting-Date: Wed, 28 Mar 2007 15:12:11 +0000 (UTC) Cc: Andreas Schwab , rms@gnu.org, emacs-devel@gnu.org To: Sam Steingold Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Wed Mar 28 17:12:02 2007 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by lo.gmane.org with esmtp (Exim 4.50) id 1HWZof-00083s-In for ged-emacs-devel@m.gmane.org; Wed, 28 Mar 2007 17:12:01 +0200 Original-Received: from localhost ([127.0.0.1] helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1HWZr8-00050r-Vm for ged-emacs-devel@m.gmane.org; Wed, 28 Mar 2007 10:14:34 -0500 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1HWZr5-00050c-Dp for emacs-devel@gnu.org; Wed, 28 Mar 2007 11:14:31 -0400 Original-Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1HWZr4-00050U-2f for emacs-devel@gnu.org; Wed, 28 Mar 2007 10:14:30 -0500 Original-Received: from south-station-annex.mit.edu ([18.72.1.2]) by monty-python.gnu.org with esmtps (TLS-1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.60) (envelope-from ) id 1HWZoZ-0004ye-Q2; Wed, 28 Mar 2007 11:11:55 -0400 Original-Received: from central-city-carrier-station.mit.edu (CENTRAL-CITY-CARRIER-STATION.MIT.EDU [18.7.7.72]) by south-station-annex.mit.edu (8.13.6/8.9.2) with ESMTP id l2SFBiAu013600; Wed, 28 Mar 2007 10:11:44 -0500 (EST) Original-Received: from outgoing-legacy.mit.edu (OUTGOING-LEGACY.MIT.EDU [18.7.22.104]) by central-city-carrier-station.mit.edu (8.13.6/8.9.2) with ESMTP id l2SFBW5d008945; Wed, 28 Mar 2007 11:11:32 -0400 (EDT) Original-Received: from localhost (MAIN-TWELVE-TWO-FIFTY-SIX.MIT.EDU [18.19.6.1]) ) by outgoing-legacy.mit.edu (8.13.6/8.12.4) with ESMTP id l2SFBPpP009338; Wed, 28 Mar 2007 11:11:27 -0400 (EDT) Original-Received: from cyd by localhost with local (Exim 3.36 #1 (Debian)) id 1HWZo5-0000rN-00; Wed, 28 Mar 2007 11:11:25 -0400 In-Reply-To: <460A73BE.8020304@gnu.org> (Sam Steingold's message of "Wed\, 28 Mar 2007 09\:55\:10 -0400") User-Agent: Gnus/5.11 (Gnus v5.11) Emacs/22.0.96 (gnu/linux) X-Scanned-By: MIMEDefang 2.42 X-Spam-Score: -2.599 X-detected-kernel: Solaris 9.1 X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.devel:68711 Archived-At: Sam Steingold writes: > there must be a sleep BEFORE the first wait. > something equivalent to your version was tried and found lacking. I can understand the explanation of why a busyloop would cause Emacs to eat CPU; but why does issuing the wait3 before the first sleep cause problems? AFAIK, no one has ever offered an explanation for this.