From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Paul Eggert Newsgroups: gmane.emacs.bugs Subject: bug#32405: [PATCH] Turn misc objects into pseudovectors Date: Thu, 9 Aug 2018 11:24:00 -0700 Organization: UCLA Computer Science Department Message-ID: <2320a31c-3754-820d-84ed-3e9720caa562@cs.ucla.edu> References: <20180809025852.28874-1-eggert@cs.ucla.edu> NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit X-Trace: blaine.gmane.org 1533838990 13389 195.159.176.226 (9 Aug 2018 18:23:10 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Thu, 9 Aug 2018 18:23:10 +0000 (UTC) User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 Cc: 32405@debbugs.gnu.org To: Andy Moreton Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Thu Aug 09 20:23:06 2018 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1fnpaS-0003L5-Cm for geb-bug-gnu-emacs@m.gmane.org; Thu, 09 Aug 2018 20:23:04 +0200 Original-Received: from localhost ([::1]:52318 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fnpcY-0001XS-Rw for geb-bug-gnu-emacs@m.gmane.org; Thu, 09 Aug 2018 14:25:14 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:56447) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fnpcQ-0001XB-0x for bug-gnu-emacs@gnu.org; Thu, 09 Aug 2018 14:25:06 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fnpcM-0006Zj-SH for bug-gnu-emacs@gnu.org; Thu, 09 Aug 2018 14:25:06 -0400 Original-Received: from debbugs.gnu.org ([208.118.235.43]:41116) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1fnpcM-0006Z2-NF for bug-gnu-emacs@gnu.org; Thu, 09 Aug 2018 14:25:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1fnpcM-0004sQ-Cq for bug-gnu-emacs@gnu.org; Thu, 09 Aug 2018 14:25:02 -0400 X-Loop: help-debbugs@gnu.org In-Reply-To: <20180809025852.28874-1-eggert@cs.ucla.edu> Resent-From: Paul Eggert Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Thu, 09 Aug 2018 18:25:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 32405 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: patch Original-Received: via spool by 32405-submit@debbugs.gnu.org id=B32405.153383904918665 (code B ref 32405); Thu, 09 Aug 2018 18:25:02 +0000 Original-Received: (at 32405) by debbugs.gnu.org; 9 Aug 2018 18:24:09 +0000 Original-Received: from localhost ([127.0.0.1]:46134 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1fnpbV-0004qz-3N for submit@debbugs.gnu.org; Thu, 09 Aug 2018 14:24:09 -0400 Original-Received: from zimbra.cs.ucla.edu ([131.179.128.68]:58916) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1fnpbT-0004qm-RR for 32405@debbugs.gnu.org; Thu, 09 Aug 2018 14:24:08 -0400 Original-Received: from localhost (localhost [127.0.0.1]) by zimbra.cs.ucla.edu (Postfix) with ESMTP id 46A3B160D1E; Thu, 9 Aug 2018 11:24:02 -0700 (PDT) Original-Received: from zimbra.cs.ucla.edu ([127.0.0.1]) by localhost (zimbra.cs.ucla.edu [127.0.0.1]) (amavisd-new, port 10032) with ESMTP id vw17gQERKAWa; Thu, 9 Aug 2018 11:24:01 -0700 (PDT) Original-Received: from localhost (localhost [127.0.0.1]) by zimbra.cs.ucla.edu (Postfix) with ESMTP id 888EC160D70; Thu, 9 Aug 2018 11:24:01 -0700 (PDT) X-Virus-Scanned: amavisd-new at zimbra.cs.ucla.edu Original-Received: from zimbra.cs.ucla.edu ([127.0.0.1]) by localhost (zimbra.cs.ucla.edu [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id 6hj4tfiKKNwR; Thu, 9 Aug 2018 11:24:01 -0700 (PDT) Original-Received: from [192.168.1.9] (unknown [47.154.30.119]) by zimbra.cs.ucla.edu (Postfix) with ESMTPSA id 48876160D1E; Thu, 9 Aug 2018 11:24:01 -0700 (PDT) Content-Language: en-US X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 208.118.235.43 X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.org gmane.emacs.bugs:149390 Archived-At: > If the patch makes the interpreter simpler that sounds worthwhile, but > are you sure there is a meaningful performance difference ? 0.3% sounds > lost in the noise. What is the time/space impact on 32bit bit platforms ? 0.3% is too small for most people to notice, yes. It is a significant difference only in the sense that I can reproduce it reliably on my 64-bit platform (Fedora 28, x86-64, AMD Phenom II X4 910e (2010)). I have not measured the effect on other platforms. I expect it would be a similarly small number. The main point of this patch is simplification and allowing for other uses of the tag, not performance. > Integration of this patch and the bignum feature branch into master may > both need some time to stabilize. Please discuss with Eli and Tom to > agree which is merged first, and allow time for master to reach a stable > state before the second of them is merged. I don't care whether this patch lands before or after bignum. If it lands second, I will resolve any incompatibilities; they won't be major. If it lands first I can help with any needed changes on the bignum side. I don't want either of us to be waiting for the other, though, and this patch is ready to go in now.