From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham autolearn_force=no version=3.4.4 X-Google-Thread: 103376,703c4f68db81387d X-Google-Thread: 115aec,703c4f68db81387d X-Google-Thread: f43e6,703c4f68db81387d X-Google-Thread: 108717,a7c8692cac750b5e X-Google-Attributes: gid103376,gid115aec,gidf43e6,gid108717,public X-Google-Language: ENGLISH,ASCII-7-bit Path: g2news1.google.com!news4.google.com!news.glorb.com!newsread.com!news-xfer.newsread.com!nntp.abs.net!attws2!att542!ip.att.net!newsfeed3.global.lmco.com!svlnews.lmms.lmco.com!not-for-mail From: "REH" Newsgroups: comp.lang.ada,comp.realtime,comp.software-eng,comp.programming Subject: Re: 10 rules for benchmarking (was Re: Teaching new tricks to an old dog (C++ -->Ada)) Date: Fri, 11 Mar 2005 14:42:49 -0500 Organization: Earth Message-ID: References: <4229bad9$0$1019$afc38c87@news.optusnet.com.au> <1110032222.447846.167060@g14g2000cwa.googlegroups.com> <871xau9nlh.fsf@insalien.org> <3SjWd.103128$Vf.3969241@news000.worldonline.dk> <87r7iu85lf.fsf@insalien.org> <1110052142.832650@athnrd02> <1110284070.410136.205090@o13g2000cwo.googlegroups.com> <395uqaF5rhu2mU1@individual.net> <112rs0bdr2aftdf@corp.supernews.com> <1inxxr988rxgg$.1w9dedak41k89.dlg@40tude.net> <112s1r0rf0o8nca@corp.supernews.com> <112sonip5v4dca6@corp.supernews.com> <112t3de6fu04f38@corp.supernews.com> <1110396477.596174.285520@o13g2000cwo.googlegroups.com> <112vb2t8eonuhed@corp.supernews.com> <1110422108.925127.54110@o13g2000cwo.googlegroups.com> <11329cb96h2p19f@corp.supernews.com> <1133rhdt7dan4fa@corp.supernews.com> NNTP-Posting-Host: 158.187.64.144 X-Priority: 3 X-MSMail-Priority: Normal X-Newsreader: Microsoft Outlook Express 6.00.2800.1437 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1441 Xref: g2news1.google.com comp.lang.ada:9164 comp.realtime:1303 comp.software-eng:4871 comp.programming:17830 Date: 2005-03-11T14:42:49-05:00 List-Id: "CTips" wrote in message news:1133rhdt7dan4fa@corp.supernews.com... > Based on this thread, I think most of the Ada advocates here (and maybe > most Ada programmers) > - don't know how a processor works > - don't know how to measure performance > - don't know how to program for performance > - don't know where Ada will hurt performance > - don't really care about performance > > This is pretty much in line with my experience. The Ada advocates (I've > known several) don't really know how to program for performance. All the > people I know who program for performance pick C (if they have the choice). Then you don't know much. Ada programmers, and programmers in general care about a lot more than performance. Performance is not the end-all-be-all of building software. You can write crap that takes 1us to execute, and I'll wite good, fault-tolerance code that runs in 1ms, but still meets all its requirements and real-time deal-lines. I'll take the later. This faster is better crap is utter non-sense, and it usually exhibited in inexperienced engineers (and the immature ones). I write Ada, C, and C++ professionally, so I guess I no "advocate." I also would not make snide, inappropriate, unnecessary, childish, and down right wrong statement about anyone who is one. Ada programmers usually work in the world of real-time software where there are many kinds of "performance." When you can do monotonic-rate analysis, et. al., like some Ada Engineers I know, then come talk to me about knowing how to measure performance.