From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: tuhs-bounces@minnie.tuhs.org X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on inbox.vuxu.org X-Spam-Level: X-Spam-Status: No, score=-0.8 required=5.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_DNSWL_NONE autolearn=ham autolearn_force=no version=3.4.2 Received: from minnie.tuhs.org (minnie.tuhs.org [45.79.103.53]) by inbox.vuxu.org (OpenSMTPD) with ESMTP id 12a52086 for ; Tue, 25 Sep 2018 15:02:28 +0000 (UTC) Received: by minnie.tuhs.org (Postfix, from userid 112) id 68AC2A1DDC; Wed, 26 Sep 2018 01:02:27 +1000 (AEST) Received: from minnie.tuhs.org (localhost [127.0.0.1]) by minnie.tuhs.org (Postfix) with ESMTP id 41BE594106; Wed, 26 Sep 2018 01:01:57 +1000 (AEST) Received: by minnie.tuhs.org (Postfix, from userid 112) id 795E49410D; Wed, 26 Sep 2018 01:01:54 +1000 (AEST) Received: from mcvoy.com (mcvoy.com [192.169.23.250]) by minnie.tuhs.org (Postfix) with ESMTPS id 7B8B594106 for ; Wed, 26 Sep 2018 01:01:53 +1000 (AEST) Received: by mcvoy.com (Postfix, from userid 3546) id BE91935E130; Tue, 25 Sep 2018 08:01:52 -0700 (PDT) Date: Tue, 25 Sep 2018 08:01:52 -0700 From: Larry McVoy To: Tony Finch Message-ID: <20180925150152.GJ10989@mcvoy.com> References: <1686170E-4323-4BDF-B95C-8A6B3FFD5288@gmail.com> <20180924194647.GA29897@server.rulingia.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.24 (2015-08-30) Subject: Re: [TUHS] SPARC is CRAPS spelled backwards. X-BeenThere: tuhs@minnie.tuhs.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: The Unix Heritage Society mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: tuhs@minnie.tuhs.org Errors-To: tuhs-bounces@minnie.tuhs.org Sender: "TUHS" On Tue, Sep 25, 2018 at 11:00:37AM +0100, Tony Finch wrote: > Peter Jeremy wrote: > > > In the specific case of x86, I would dispute that. The various warts in > > the x86 instruction set and "architecture" mean that x86 code density is > > relatively low and on a par with SPARC code. > > This paper has a nice survey of instruction set densities, which very much > disagrees with your statement: > > http://web.eece.maine.edu/~vweaver/papers/iccd09/iccd09_density.pdf That's a neat paper, I like it, thanks for the pointer. I'm curious why Peter thought what he thought, my guess would have been more like what the paper showed, but that was a "hand optimized assembly", maybe the compilers aren't that good? I dunno, Peter, care to comment?