From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.devel Subject: Re: EMACS_INT cleanup Date: Fri, 24 Sep 2010 12:05:53 +0200 Message-ID: <83eicjtq0u.fsf@gnu.org> References: <83aan8uvy3.fsf@gnu.org> <8339t0uthi.fsf@gnu.org> <831v8kurwd.fsf@gnu.org> <83wrqctcha.fsf@gnu.org> <83vd5wtc7j.fsf@gnu.org> <83r5gjtwf6.fsf@gnu.org> Reply-To: Eli Zaretskii NNTP-Posting-Host: lo.gmane.org X-Trace: dough.gmane.org 1285322778 30990 80.91.229.12 (24 Sep 2010 10:06:18 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Fri, 24 Sep 2010 10:06:18 +0000 (UTC) Cc: larsi@gnus.org, emacs-devel@gnu.org To: Miles Bader Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Fri Sep 24 12:06:15 2010 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 4.69) (envelope-from ) id 1Oz5AU-0002rd-U5 for ged-emacs-devel@m.gmane.org; Fri, 24 Sep 2010 12:06:15 +0200 Original-Received: from localhost ([127.0.0.1]:37226 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Oz5AU-0007li-4o for ged-emacs-devel@m.gmane.org; Fri, 24 Sep 2010 06:06:14 -0400 Original-Received: from [140.186.70.92] (port=40600 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Oz5AA-0007iT-Vx for emacs-devel@gnu.org; Fri, 24 Sep 2010 06:05:58 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.69) (envelope-from ) id 1Oz5A6-0000ly-5U for emacs-devel@gnu.org; Fri, 24 Sep 2010 06:05:54 -0400 Original-Received: from mtaout21.012.net.il ([80.179.55.169]:65221) by eggs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1Oz5A5-0000lm-Oc; Fri, 24 Sep 2010 06:05:50 -0400 Original-Received: from conversion-daemon.a-mtaout21.012.net.il by a-mtaout21.012.net.il (HyperSendmail v2007.08) id <0L9800I00X0JS100@a-mtaout21.012.net.il>; Fri, 24 Sep 2010 12:05:48 +0200 (IST) Original-Received: from HOME-C4E4A596F7 ([77.127.203.3]) by a-mtaout21.012.net.il (HyperSendmail v2007.08) with ESMTPA id <0L9800I7XXDNRB20@a-mtaout21.012.net.il>; Fri, 24 Sep 2010 12:05:48 +0200 (IST) In-reply-to: X-012-Sender: halo1@inter.net.il X-detected-operating-system: by eggs.gnu.org: Solaris 10 (beta) 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:130743 Archived-At: > From: Miles Bader > Cc: Lars Magne Ingebrigtsen , emacs-devel@gnu.org > Date: Fri, 24 Sep 2010 18:43:12 +0900 > > Eli Zaretskii writes: > >> I mean, it may be nice and orthogonal and stuff, but... I don't know. > >> And does using more longs on 64-bit machines than previously slow Emacs > >> down any? > > > > It shouldn't, the registers are 64-bit. > > Means more cache usage and memory traffic tho. Maybe, maybe not. It depends on the micro-architecture of the CPU and the cache. As for memory, I don't think it matters for isolated variables (as opposed to arrays). They will be usually in a register when they are used.