From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Paul Eggert Newsgroups: gmane.emacs.devel Subject: Re: Aligned blocks management: obsolete? Date: Tue, 19 Jun 2012 23:53:44 -0700 Organization: UCLA Computer Science Department Message-ID: <4FE17378.9050208@cs.ucla.edu> References: <4EE5B744.1090103@yandex.ru> <4EE60A93.9060401@yandex.ru> <4EE6478C.1020701@cs.ucla.edu> <4FE0ADFC.9090504@yandex.ru> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Trace: dough.gmane.org 1340175231 25904 80.91.229.3 (20 Jun 2012 06:53:51 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Wed, 20 Jun 2012 06:53:51 +0000 (UTC) Cc: emacs-devel@gnu.org To: Dmitry Antipov Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Wed Jun 20 08:53:50 2012 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 1ShEnV-0006KI-Sm for ged-emacs-devel@m.gmane.org; Wed, 20 Jun 2012 08:53:50 +0200 Original-Received: from localhost ([::1]:39264 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ShEnV-0001nB-SC for ged-emacs-devel@m.gmane.org; Wed, 20 Jun 2012 02:53:49 -0400 Original-Received: from eggs.gnu.org ([208.118.235.92]:42846) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ShEnT-0001mt-1p for emacs-devel@gnu.org; Wed, 20 Jun 2012 02:53:48 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ShEnO-0001xP-97 for emacs-devel@gnu.org; Wed, 20 Jun 2012 02:53:46 -0400 Original-Received: from smtp.cs.ucla.edu ([131.179.128.62]:34385) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ShEnO-0001x7-3Q for emacs-devel@gnu.org; Wed, 20 Jun 2012 02:53:42 -0400 Original-Received: from localhost (localhost.localdomain [127.0.0.1]) by smtp.cs.ucla.edu (Postfix) with ESMTP id 24E32A60008; Tue, 19 Jun 2012 23:53:40 -0700 (PDT) X-Virus-Scanned: amavisd-new at smtp.cs.ucla.edu Original-Received: from smtp.cs.ucla.edu ([127.0.0.1]) by localhost (smtp.cs.ucla.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id wT5KrYluLMPh; Tue, 19 Jun 2012 23:53:39 -0700 (PDT) Original-Received: from [192.168.1.10] (pool-108-23-119-2.lsanca.fios.verizon.net [108.23.119.2]) by smtp.cs.ucla.edu (Postfix) with ESMTPSA id 4BC9139E800C; Tue, 19 Jun 2012 23:53:39 -0700 (PDT) User-Agent: Mozilla/5.0 (X11; Linux i686; rv:12.0) Gecko/20120430 Thunderbird/12.0.1 In-Reply-To: <4FE0ADFC.9090504@yandex.ru> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 3) X-Received-From: 131.179.128.62 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:151043 Archived-At: On 06/19/2012 09:51 AM, Dmitry Antipov wrote: > this cleanup assumes that every malloc implementation > has reasonably efficient posix_memalign or memalign at least. memalign might be dicey, as Stefan noted. The gnulib documentation says posix_memalign is missing on some plausible Emacs porting targets, and the gnulib implementation of pagealign_alloc says that posix_memalign often wastes an entire memory page per call (don't know the details about that).