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=-0.3 required=5.0 tests=BAYES_00, REPLYTO_WITHOUT_TO_CC autolearn=no autolearn_force=no version=3.4.4 X-Google-Thread: a07f3367d7,3a6a9f1d654285ba X-Google-Attributes: gida07f3367d7,public,usenet X-Google-NewGroupId: yes X-Google-Language: ENGLISH,ASCII-7-bit Path: g2news2.google.com!news3.google.com!feeder.news-service.com!npeer.de.kpn-eurorings.net!npeer-ng0.de.kpn-eurorings.net!newsfeed.arcor.de!newsspool4.arcor-online.net!news.arcor.de.POSTED!not-for-mail From: "Dmitry A. Kazakov" Subject: Re: Ada Shootout program for K-Nucleotide (patches) Newsgroups: comp.lang.ada User-Agent: 40tude_Dialog/2.0.15.1 MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Reply-To: mailbox@dmitry-kazakov.de Organization: cbb software GmbH References: <4a743343$0$32674$9b4e6d93@newsspool2.arcor-online.net> <0c18b36c-7af0-454c-8208-9b0416111a1f@w41g2000yqb.googlegroups.com> <87fxc9e0mg.fsf@nbi.dk> <4a76cd4f$0$31329$9b4e6d93@newsspool4.arcor-online.net> <87bpmxdqfo.fsf@nbi.dk> <2bae762e-0d8a-4389-843a-466e87f59fd1@a37g2000prf.googlegroups.com> <4a786b15$0$30230$9b4e6d93@newsspool1.arcor-online.net> <67e76046-62d4-4c0e-bdd8-8d00cdf93bca@l35g2000pra.googlegroups.com> <4a79f712$0$31874$9b4e6d93@newsspool3.arcor-online.net> <7ead5f61-e733-4c53-af41-34c6dbec0335@d15g2000prc.googlegroups.com> <4a7a9616$0$31867$9b4e6d93@newsspool3.arcor-online.net> Date: Thu, 6 Aug 2009 11:09:55 +0200 Message-ID: <124fc6c7cp0ug.kgxak9nc9312$.dlg@40tude.net> NNTP-Posting-Date: 06 Aug 2009 11:09:54 CEST NNTP-Posting-Host: 554f175c.newsspool3.arcor-online.net X-Trace: DXC=T30l\Yc^n1Tf8j24CD<3lPMcF=Q^Z^V3X4Fo<]lROoRQ^YC2XCjHcbYS7H=QbWHU8VDNcfSJ;bb[UIRnRBaCd On Thu, 06 Aug 2009 10:36:38 +0200, Georg Bauhaus wrote: > Does it matter? Gives C programmers the illusion that > it is their language that makes I/O fast when it is > Unix I/O and the wrappers that have naturally made it > into its handy byproduct C. Huh, Unix I/O is fast? I still remember good old times. Unix Sys V was at least 5 times slower on a PDP-11 compared to RSX-11M. The reason? Unix used an incredible amount of buffers mounted on buffers. An input character travelled through 3-5 buffers before it landed in the program. RSX-11 I/O was in-place with user-space single buffer passed to the driver. I think the present situation is only worse, but there is nothing to compare with (nobody would count Windows as a contender). -- Regards, Dmitry A. Kazakov http://www.dmitry-kazakov.de