From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Dmitry Antipov Newsgroups: gmane.emacs.devel Subject: Re: [Emacs-diffs] trunk r117464: Shrink Lisp_Sub_Char_Table by preferring C integers to Lisp_Objects. Date: Wed, 02 Jul 2014 19:54:22 +0400 Message-ID: <53B42B2E.7090404@yandex.ru> References: <53B42194.2040003@yandex.ru> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Trace: ger.gmane.org 1404316497 30624 80.91.229.3 (2 Jul 2014 15:54:57 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Wed, 2 Jul 2014 15:54:57 +0000 (UTC) Cc: emacs-devel@gnu.org To: Stefan Monnier Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Wed Jul 02 17:54:51 2014 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 1X2Mrr-0004yq-Du for ged-emacs-devel@m.gmane.org; Wed, 02 Jul 2014 17:54:43 +0200 Original-Received: from localhost ([::1]:55042 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1X2Mrr-0001K0-3v for ged-emacs-devel@m.gmane.org; Wed, 02 Jul 2014 11:54:43 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:41664) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1X2Mrh-0001In-BQ for emacs-devel@gnu.org; Wed, 02 Jul 2014 11:54:40 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1X2Mra-0003xE-AS for emacs-devel@gnu.org; Wed, 02 Jul 2014 11:54:33 -0400 Original-Received: from forward6.mail.yandex.net ([77.88.60.125]:37393) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1X2MrZ-0003wD-W9 for emacs-devel@gnu.org; Wed, 02 Jul 2014 11:54:26 -0400 Original-Received: from smtp7.mail.yandex.net (smtp7.mail.yandex.net [77.88.61.55]) by forward6.mail.yandex.net (Yandex) with ESMTP id 929191120DB7; Wed, 2 Jul 2014 19:54:23 +0400 (MSK) Original-Received: from smtp7.mail.yandex.net (localhost [127.0.0.1]) by smtp7.mail.yandex.net (Yandex) with ESMTP id 4DFB11580994; Wed, 2 Jul 2014 19:54:23 +0400 (MSK) Original-Received: from unknown (unknown [37.139.80.10]) by smtp7.mail.yandex.net (nwsmtp/Yandex) with ESMTPSA id cNkkWgPoa8-sMnaIY8c; Wed, 2 Jul 2014 19:54:22 +0400 (using TLSv1 with cipher AES128-SHA (128/128 bits)) (Client certificate not present) X-Yandex-Uniq: 00f65a49-80b6-4810-b091-ffcd100a859f DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yandex.ru; s=mail; t=1404316462; bh=gA/tY1VmFap0ZUjObqdJprlw8Gu0og9v45yn2bvyQks=; h=Message-ID:Date:From:User-Agent:MIME-Version:To:CC:Subject: References:In-Reply-To:Content-Type:Content-Transfer-Encoding; b=YOe8BjsChrtG2B84dJiAQNL2TvI/5aUPQYyQb7dnHBeuBuAIL37xet/+drmFoQDaX q8swq8kKgjZGcpOx/TovSteTX8tHunjQAZid/zA2U1j53tb7D2jRZ7LS1ju9dsC9cV g/3mTMC7pcQ/k6CU6Np3Du4GcdwdtANhQTEypX6c= Authentication-Results: smtp7.mail.yandex.net; dkim=pass header.i=@yandex.ru User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.6.0 In-Reply-To: X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [generic] [fuzzy] X-Received-From: 77.88.60.125 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:172852 Archived-At: On 07/02/2014 07:42 PM, Stefan Monnier wrote: >if/when we optimize > the representation a bit more (i.e. merge `depth' and `min_char' into > a single 32bit word, by adding ":2" and ":30" after each field), your > code will probably fail. I've considered this possible optimization too and rejected it exactly for the reason you're talking about. Dmitry