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=unavailable autolearn_force=no version=3.4.4 Path: eternal-september.org!reader01.eternal-september.org!reader02.eternal-september.org!news.eternal-september.org!news.eternal-september.org!news.eternal-september.org!feeder.eternal-september.org!news.swapon.de!fu-berlin.de!uni-berlin.de!individual.net!not-for-mail From: Niklas Holsti Newsgroups: comp.lang.ada Subject: Re: [OT] Ravenscar (the place, not profile), was: Re: STM32F4 Discovery, communication and libraries Date: Fri, 29 Aug 2014 20:18:40 +0300 Organization: Tidorum Ltd Message-ID: References: <60a42dc6-d8d0-4432-ae5a-86de18b82840@googlegroups.com> <5kkrv9hejn2qhdckkeo8lidkbh3bkme1gn@4ax.com> <5b91313c-acf9-4a6e-b157-6ba7c8021567@googlegroups.com> <0513ad07-6fbe-463a-be6f-097cd5113f52@googlegroups.com> <4f1ec65a-d66a-40bf-a0d6-278fde206e70@googlegroups.com> <1cd027f2-a0e0-4206-b989-4aed2090cde8@googlegroups.com> <1ibla8yyj3ibm$.1lz0cmeu8ptp2.dlg@40tude.net> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Trace: individual.net bIf+owmEZB4r4/TuYzj6RwwxVfENhU1ptvdfQjzf7d36+4co3v Cancel-Lock: sha1:KupHlGAmCKXvx4YBgqDDq+QcE4U= User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8; rv:24.0) Gecko/20100101 Thunderbird/24.6.0 In-Reply-To: Xref: news.eternal-september.org comp.lang.ada:21993 Date: 2014-08-29T20:18:40+03:00 List-Id: On 14-08-29 19:59 , Simon Clubley wrote: > On 2014-08-29, Niklas Holsti wrote: >> On 14-08-29 10:34 , Dmitry A. Kazakov wrote: >> >>> Ravenscar tasking profile has serious constraints preventing this. The >>> nature of the constraints is to statically ensure schedulability. >> >> That's what they (= the people whoe defined the profile) often say, but >> it is not quite true. Even within Ravenscar constraints, one can build >> very dynamic task interactions, which is nice for implementing stuff in >> a Ravenscar system, but which makes schedulability analysis difficult. >> > > I have got to ask: how did Ravenscar ever get chosen for an Ada meeting > place ? I don't know... but I have another follow-on question: how is "Ravenscar" pronounced locally? Does it start like "ray", or like "Rachmaninoff"? -- Niklas Holsti Tidorum Ltd niklas holsti tidorum fi . @ .