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: 103376,ba6120170d8e7faf X-Google-Attributes: gid103376,public X-Google-ArrivalTime: 2001-12-05 09:32:46 PST Message-ID: <3C0E5A3A.B5C835A6@baesystems.com> Date: Wed, 05 Dec 2001 17:32:42 +0000 From: Stuart Palin Organization: BAE SYSTEMS Avionics, Rochester X-Mailer: Mozilla 4.5 [en] (WinNT; I) X-Accept-Language: en MIME-Version: 1.0 Newsgroups: comp.lang.ada Subject: Re: Worst Case Execution Time Tool? References: <3C0D536C.2E059EE8@computer.org> <3C0E3535.58437022@computer.org> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit NNTP-Posting-Host: rc2966.rochstr.gmav.gecm.com X-Trace: 5 Dec 2001 17:33:36 GMT, rc2966.rochstr.gmav.gecm.com Path: archiver1.google.com!news1.google.com!newsfeed.stanford.edu!news-spur1.maxwell.syr.edu!news.maxwell.syr.edu!newsfeed.cwix.com!newsfeed.icl.net!dispose.news.demon.net!demon!btnet-peer0!btnet-feed5!btnet!newreader.ukcore.bt.net!pull.gecm.com!rc2966.rochstr.gmav.gecm.com Xref: archiver1.google.com comp.lang.ada:17459 Date: 2001-12-05T17:32:42+00:00 List-Id: StationSteve wrote: > So how (or do?) people typically PROVE that their program will actually meet their deadlines? If > somebody does a rate monotonic design, they have to assume the execution time of task. How does one > determine the true execution time so that the design can be shown to be correct? On several projects we have used [in-house] WCET tools, our most recent being for a MC68020/MC68882 target with code generated by the XD-Ada compiler. Unfortunately this does not help you (not a commercially available tool and not '386). -- Stuart Palin Principal Software Engineer BAE SYSTEMS Avionics Ltd, Rochester G-NET 791 3364 mailto:stuart.palin@baesystems.com