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-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 115aec,10a739dd228c3f5e X-Google-Attributes: gid115aec,public X-Google-Thread: 103376,ff18b3dfbae1e1d6 X-Google-Attributes: gid103376,public X-Google-ArrivalTime: 2002-08-28 08:49:17 PST Path: archiver1.google.com!news1.google.com!newsfeed.stanford.edu!paloalto-snf1.gtei.net!crtntx1-snh1.gtei.net!cambridge1-snf1.gtei.net!news.gtei.net!bos-service1.ext.raytheon.com!bos-service2.ext.raytheon.com.POSTED!not-for-mail Message-ID: <3D6CF0FC.F20343EA@gbr.msd.ray.com> From: Steve O'Neill X-Mailer: Mozilla 4.78 [en] (X11; U; HP-UX B.11.11 9000/785) X-Accept-Language: en MIME-Version: 1.0 Newsgroups: comp.lang.ada,comp.realtime Subject: Re: Ada as a real time language References: <3D6CEB7E.E6930EAD@avionics.saab.se> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Date: Wed, 28 Aug 2002 11:49:16 -0400 NNTP-Posting-Host: 192.199.125.46 X-Complaints-To: news@ext.ray.com X-Trace: bos-service2.ext.raytheon.com 1030549756 192.199.125.46 (Wed, 28 Aug 2002 11:49:16 EDT) NNTP-Posting-Date: Wed, 28 Aug 2002 11:49:16 EDT Organization: Raytheon Company Xref: archiver1.google.com comp.lang.ada:28507 comp.realtime:6140 Date: 2002-08-28T11:49:16-04:00 List-Id: Mikael Lundqvist wrote: > > I have heard that the Ada Run Time doesn't handle load > that well. If you have to many tasks or to much input/output > the Runtime gives in so to speak. Well, I certainly can't speak for all implementations but I would consider this to be 1) a sweeping generalization 2) hearsay 3) urban legend In any case I'd prefer that you not repeat this kind of potential mis-information. Unless, of course, you have specific knowledge where this is true. > In that regard you should be better of with a RTOS. Maybe, maybe not. > I have not any experience myself with large Ada programs. Then I have to wonder about the value of this information. > Anybody out there who could comment? Yes. I *do* have experience with numerous Ada programs both large and small. Some of these used RTOS' while others did not. I can say that neither the Ada language nor the Ada run-time have ever been an obstacle to producing real-time systems. As others have said the primary reason that we would use an RTOS was for the other services that they provide - not for performance reasons. This is not to say that you should blindly ignore potential performance issues - you must keep these in mind as you design your system. Steve O'Neill