From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Paul Eggert Newsgroups: gmane.emacs.devel Subject: Re: Emacs Lisp JIT Compiler Date: Tue, 14 Aug 2018 15:38:44 -0700 Organization: UCLA Computer Science Department Message-ID: References: <87va8ej4o1.fsf@tromey.com> <87mutpiyz6.fsf@tromey.com> <701cd05f423e0c46595a3010f45414d0.squirrel@dancol.org> <520f536b5a603831c9a57a5f6f0978a2.squirrel@dancol.org> 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 1534286243 14688 195.159.176.226 (14 Aug 2018 22:37:23 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Tue, 14 Aug 2018 22:37:23 +0000 (UTC) User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 Cc: Tom Tromey , emacs-devel@gnu.org To: Daniel Colascione Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Wed Aug 15 00:37:19 2018 Return-path: Envelope-to: ged-emacs-devel@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 1fphwF-0003kq-88 for ged-emacs-devel@m.gmane.org; Wed, 15 Aug 2018 00:37:19 +0200 Original-Received: from localhost ([::1]:46470 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fphyL-0007iN-K1 for ged-emacs-devel@m.gmane.org; Tue, 14 Aug 2018 18:39:29 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:37980) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fphxi-0007i1-9j for emacs-devel@gnu.org; Tue, 14 Aug 2018 18:38:51 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fphxf-0006fA-6h for emacs-devel@gnu.org; Tue, 14 Aug 2018 18:38:50 -0400 Original-Received: from zimbra.cs.ucla.edu ([131.179.128.68]:57588) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1fphxe-0006ca-TK for emacs-devel@gnu.org; Tue, 14 Aug 2018 18:38:47 -0400 Original-Received: from localhost (localhost [127.0.0.1]) by zimbra.cs.ucla.edu (Postfix) with ESMTP id CC9AC160EC0; Tue, 14 Aug 2018 15:38:45 -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 beRYaz5yDGZU; Tue, 14 Aug 2018 15:38:45 -0700 (PDT) Original-Received: from localhost (localhost [127.0.0.1]) by zimbra.cs.ucla.edu (Postfix) with ESMTP id 1D5B616103A; Tue, 14 Aug 2018 15:38:45 -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 ka9UDaHmsaYt; Tue, 14 Aug 2018 15:38:45 -0700 (PDT) Original-Received: from Penguin.CS.UCLA.EDU (Penguin.CS.UCLA.EDU [131.179.64.200]) by zimbra.cs.ucla.edu (Postfix) with ESMTPSA id 01BE6160EC0; Tue, 14 Aug 2018 15:38:44 -0700 (PDT) Openpgp: preference=signencrypt Autocrypt: addr=eggert@cs.ucla.edu; prefer-encrypt=mutual; keydata= xsFNBEyAcmQBEADAAyH2xoTu7ppG5D3a8FMZEon74dCvc4+q1XA2J2tBy2pwaTqfhpxxdGA9 Jj50UJ3PD4bSUEgN8tLZ0san47l5XTAFLi2456ciSl5m8sKaHlGdt9XmAAtmXqeZVIYX/UFS 96fDzf4xhEmm/y7LbYEPQdUdxu47xA5KhTYp5bltF3WYDz1Ygd7gx07Auwp7iw7eNvnoDTAl KAl8KYDZzbDNCQGEbpY3efZIvPdeI+FWQN4W+kghy+P6au6PrIIhYraeua7XDdb2LS1en3Ss mE3QjqfRqI/A2ue8JMwsvXe/WK38Ezs6x74iTaqI3AFH6ilAhDqpMnd/msSESNFt76DiO1ZK QMr9amVPknjfPmJISqdhgB1DlEdw34sROf6V8mZw0xfqT6PKE46LcFefzs0kbg4GORf8vjG2 Sf1tk5eU8MBiyN/bZ03bKNjNYMpODDQQwuP84kYLkX2wBxxMAhBxwbDVZudzxDZJ1C2VXujC OJVxq2kljBM9ETYuUGqd75AW2LXrLw6+MuIsHFAYAgRr7+KcwDgBAfwhPBYX34nSSiHlmLC+ KaHLeCLF5ZI2vKm3HEeCTtlOg7xZEONgwzL+fdKo+D6SoC8RRxJKs8a3sVfI4t6CnrQzvJbB n6gxdgCu5i29J1QCYrCYvql2UyFPAK+do99/1jOXT4m2836j1wARAQABzSBQYXVsIEVnZ2Vy dCA8ZWdnZXJ0QGNzLnVjbGEuZWR1PsLBfgQTAQIAKAUCTIByZAIbAwUJEswDAAYLCQgHAwIG FQgCCQoLBBYCAwECH In-Reply-To: <520f536b5a603831c9a57a5f6f0978a2.squirrel@dancol.org> Content-Language: en-US X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-Received-From: 131.179.128.68 X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.21 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" Xref: news.gmane.org gmane.emacs.devel:228541 Archived-At: On 08/14/2018 02:03 PM, Daniel Colascione wrote: > Randomly > varying the performance of loaded elisp code to such a degree depending on > the presence of various system tools is unacceptable Are you're saying you'd rather have predictably bad performance, than have an application that sometimes has the bad performance in some situations, and 3x better performance in other situations? If this is a real issue, we can easily arrange for Emacs to have predictably bad performance all the time (for people who prefer this), by having a configure-time or run-time option that says "I want predictably-bad performance". However, I expect most users would rather have 3x better performance when it's available.