From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: From: presotto@plan9.bell-labs.com To: 9fans@cse.psu.edu Subject: Re: [9fans] GUI toolkit for Plan 9 MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="upas-rwndazgardgzomzstagwdwzhlo" Date: Tue, 26 Feb 2002 14:05:49 -0500 Topicbox-Message-UUID: 573c565c-eaca-11e9-9e20-41e7f4b1d025 This is a multi-part message in MIME format. --upas-rwndazgardgzomzstagwdwzhlo Content-Disposition: inline Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit No, it's not really the same. I've had odd performance changes when garbage collectors decide to do their thing. However, they've never made correct code not work. However, it seems to be an accepted consequence amongst compiler writers to trade off possible incorrect code generation against probable speed gains. I've been burned numerous times by upping the optimization level in compilers including gcc. This is not a new development. It was just as true 30 years ago with the fortran and PL1 compilers I used. --upas-rwndazgardgzomzstagwdwzhlo Content-Type: message/rfc822 Content-Disposition: inline Received: from plan9.cs.bell-labs.com ([135.104.9.2]) by plan9; Tue Feb 26 12:26:18 EST 2002 Received: from mail.cse.psu.edu ([130.203.4.6]) by plan9; Tue Feb 26 12:26:16 EST 2002 Received: from psuvax1.cse.psu.edu (psuvax1.cse.psu.edu [130.203.16.6]) by mail.cse.psu.edu (CSE Mail Server) with ESMTP id 5156219980; Tue, 26 Feb 2002 12:26:09 -0500 (EST) Delivered-To: 9fans@cse.psu.edu Received: from mercury.bath.ac.uk (mercury.bath.ac.uk [138.38.32.81]) by mail.cse.psu.edu (CSE Mail Server) with ESMTP id 49AEC19980 for <9fans@cse.psu.edu>; Tue, 26 Feb 2002 12:25:52 -0500 (EST) Received: from news by mercury.bath.ac.uk with local (Exim 3.12 #1) id 16flAG-0006Yi-00 for 9fans@cse.psu.edu; Tue, 26 Feb 2002 17:13:20 +0000 Received: from GATEWAY by bath.ac.uk with netnews for 9fans@cse.psu.edu (9fans@cse.psu.edu) To: 9fans@cse.psu.edu From: "Thomas Bushnell, BSG" Message-ID: <87664kgoie.fsf@becket.becket.net> Organization: University of California, Irvine Content-Type: text/plain; charset=us-ascii References: <0203c3ac75cd0cbf6c419953cd7401cd@plan9.bell-labs.com> Subject: Re: [9fans] GUI toolkit for Plan 9 Sender: 9fans-admin@cse.psu.edu Errors-To: 9fans-admin@cse.psu.edu X-BeenThere: 9fans@cse.psu.edu X-Mailman-Version: 2.0.8 Precedence: bulk Reply-To: 9fans@cse.psu.edu List-Help: List-Id: Fans of the OS Plan 9 from Bell Labs <9fans.cse.psu.edu> List-Archive: Date: Tue, 26 Feb 2002 17:13:14 GMT rob@plan9.bell-labs.com (rob pike) writes: > Ten percent buys you, what, a couple of weeks of Moore's Law? I'm not > against fast compilers - I'm actually rather impressed by good > compilers - but I do fret about optimizing compilers breaking my code. Oh, of course, but that's a matter of writing correct code. Your concern reminds me of people who are scared of garbage collection because they think it will have a bug and free live memory. --upas-rwndazgardgzomzstagwdwzhlo--