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Xref: sserve comp.os.386bsd.misc:1191 comp.os.linux:56013 Newsgroups: comp.os.386bsd.misc,comp.os.linux Path: sserve!newshost.anu.edu.au!munnari.oz.au!news.Hawaii.Edu!ames!elroy.jpl.nasa.gov!swrinde!cs.utexas.edu!uunet!brunix!cs.brown.edu!Mark_Weaver From: Mark_Weaver@brown.edu Subject: Re: FYI.. benchmarks on linux and 386bsd In-Reply-To: root@umibox.hanse.de's message of Thu, 7 Oct 1993 12:57:45 GMT Message-ID: <MARK_WEAVER.93Oct9112425@tonto-slip11.cis.brown.edu> Sender: news@cs.brown.edu Organization: Brown University Department of Computer Science References: <2CB12A8D.17397@news.service.uci.edu> <MARK_WEAVER.93Oct5175919@excelsior.cis.brown.edu> <1993Oct7.125745.28750@umibox.hanse.de> Date: Sat, 9 Oct 1993 15:24:25 GMT Lines: 26 In article <1993Oct7.125745.28750@umibox.hanse.de> root@umibox.hanse.de (Bernd Meyer) writes: > Mark_Weaver@brown.edu writes: > > >In article <2CB12A8D.17397@news.service.uci.edu> jstern@aris.ss.uci.edu (Jeff Stern) writes: > >> These are two different dhrystone benchmarks, and a dhampstone > >> benchmark which I compiled both under gcc (without optimization) on > ^^^^^^^^^^^^^^^^^^^^ > >You you were running gcc version 1 (the default that comes with > >386bsd 0.1) then that explains it. gcc2 has a significantly better > >optimizer that could easily explain this kind of speed difference. > ^^^^^^^^ > > Something is striking me odd here..... Hmm. Did I really miss that? Oh well. In any case, gcc2 is a complete re-write, and it's possible that even the unoptimized code is faster. I just don't think it's fair to make a comparison unless it uses the exact some compiler and compilation options on both OSes. Mark -- -------------------------------------------------------------------- Email: Mark_Weaver@brown.edu | Brown University PGP Key: finger mhw@cs.brown.edu | Dept of Computer Science