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: a07f3367d7,3025dd6d917b499c X-Google-Attributes: gida07f3367d7,public,usenet X-Google-NewGroupId: yes X-Google-Language: ENGLISH,ASCII Received: by 10.14.220.131 with SMTP id o3mr13911132eep.6.1350352613965; Mon, 15 Oct 2012 18:56:53 -0700 (PDT) Path: q10ni65138189wif.0!nntp.google.com!feeder3.cambriumusenet.nl!feed.tweaknews.nl!94.232.116.13.MISMATCH!feed.xsnews.nl!border-3.ams.xsnews.nl!npeer.de.kpn-eurorings.net!npeer-ng0.de.kpn-eurorings.net!border2.nntp.ams2.giganews.com!border1.nntp.ams2.giganews.com!border3.nntp.ams.giganews.com!border1.nntp.ams.giganews.com!nntp.giganews.com!news.panservice.it!aioe.org!.POSTED!not-for-mail From: "Dmitry A. Kazakov" Newsgroups: comp.lang.ada Subject: Re: Ada, the best language with the not-so-best tool chain Date: Tue, 9 Oct 2012 14:55:32 +0200 Organization: cbb software GmbH Message-ID: <1r197m8q5ia2w.14ah8i1us2i8g$.dlg@40tude.net> References: <38af7fb8-b0a4-4a31-87aa-b7b698cc89c3@googlegroups.com> <3ca0ffd0-1764-484b-8fab-17c0d2dd9463@googlegroups.com> <1f645050-cf4c-40bf-a797-9687b69e4a54@googlegroups.com> <18ats2960nsvm$.kfufsnul13aq$.dlg@40tude.net> <5072c9ae$0$6562$9b4e6d93@newsspool4.arcor-online.net> <4keoa6epdxt7.1nnwxy7v7ar90.dlg@40tude.net> <5072dc68$0$6554$9b4e6d93@newsspool4.arcor-online.net> <1f7cmfp1l65w1.1deog8cfxbs0u$.dlg@40tude.net> <5072e37a$0$6556$9b4e6d93@newsspool4.arcor-online.net> Reply-To: mailbox@dmitry-kazakov.de NNTP-Posting-Host: FbOMkhMtVLVmu7IwBnt1tw.user.speranza.aioe.org Mime-Version: 1.0 X-Complaints-To: abuse@aioe.org User-Agent: 40tude_Dialog/2.0.15.1 X-Notice: Filtered by postfilter v. 0.8.2 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8bit Date: 2012-10-09T14:55:32+02:00 List-Id: On Tue, 09 Oct 2012 14:29:57 +0200, Vinzent Hoefler wrote: > Dmitry A. Kazakov wrote: > >> On Mon, 8 Oct 2012 20:16:12 +0000 (UTC), Simon Clubley wrote: >> >> Huh, are you building bombs, guys? (:-)) For most physical processes 1ms, >> even 10ms cycle is more than enough. Linux can easily deliver you 1ms >> cycle. > > That wouldn't be nearly "good enough" for the project I was once involved > in. There we needed to deliver a constant data rate at a frequency of up to > 10 kHz (interrupt triggered). No FIFO on the output side. CPU was a neat > little NEC V30 @ 8 MHz. We have several projects where 10kHz sampling rate is required. Though it is sampling and never the control loop. For pure sampling there exist over-sampling solutions, so that you would not need to read data each 100�s. > And no, it wasn't a bomb - actually I'd suspect the timing constraints > for a bomb-type project are much more relaxed. ;) Under a bomb I meant processes like explosion or burning. These are ones for which you would have to dip under 1ms. -- Regards, Dmitry A. Kazakov http://www.dmitry-kazakov.de