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,FREEMAIL_FROM autolearn=unavailable autolearn_force=no version=3.4.4 X-Received: by 10.182.44.166 with SMTP id f6mr1660086obm.44.1432796087376; Wed, 27 May 2015 23:54:47 -0700 (PDT) X-Received: by 10.140.37.129 with SMTP id r1mr11762qgr.18.1432796087348; Wed, 27 May 2015 23:54:47 -0700 (PDT) Path: buffer2.nntp.dca1.giganews.com!border2.nntp.dca1.giganews.com!nntp.giganews.com!news.glorb.com!j8no24206igd.0!news-out.google.com!k20ni44976qgd.0!nntp.google.com!z60no4224575qgd.1!postnews.google.com!glegroupsg2000goo.googlegroups.com!not-for-mail Newsgroups: comp.lang.ada Date: Wed, 27 May 2015 23:54:47 -0700 (PDT) In-Reply-To: Complaints-To: groups-abuse@google.com Injection-Info: glegroupsg2000goo.googlegroups.com; posting-host=105.237.62.132; posting-account=orbgeAkAAADzWCTlruxuX_Ts4lIq8C5J NNTP-Posting-Host: 105.237.62.132 References: <9ad1fcdc-cdf9-4ff0-aa7e-051d53b6736a@googlegroups.com> User-Agent: G2/1.0 MIME-Version: 1.0 Message-ID: <7d56e720-5e91-4950-b4ae-29d7ddbdc11a@googlegroups.com> Subject: Re: longest path through a task From: jan.de.kruyf@gmail.com Injection-Date: Thu, 28 May 2015 06:54:47 +0000 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Xref: number.nntp.giganews.com comp.lang.ada:193334 Date: 2015-05-27T23:54:47-07:00 List-Id: On Wednesday, May 27, 2015 at 10:09:22 PM UTC+2, Niklas Holsti wrote: >=20 > What kind of ARM are you using? A classic ARM7, or a Cortex? "M" series? Thank you Niklas. CortexM4 since Ada has a cross environment for it. I dont think it will get= serious. I dumped the multithread stuff and made a single-thread / multita= sk runtime (slow in Ada unfortunately, but not as slow as multi-threading a= nd interrupts. The Ravenscar runtime tries to be everything for everybody).= But in any case it means that I have to watch my deadlines one way or anot= her. I did a bit of internet trawling last night to find out what they did for t= he Xoberon environment I posted about in the language shootout. They restri= cted the language further, and added a bound on number of loop executions. = The bound you would then give a value in the program. And then a static c= alculation via the compiler with dynamic runtime adaption of the value, sin= ce it was still way out at times. But that is on a powerpc604, which is not= a microcontroller but an office machine animal so there are more variables= that cause execution-time variation. In any case, let me get on with building bridges to Linux Kernel C.=20 I learn a lot about tribalism in the IT industry at the moment. p.s. Ah I see it is your bread and butter, very interesting :) Peace to you and yours. j. >=20 > --=20 > Niklas Holsti > Tidorum Ltd > niklas holsti tidorum fi > . @ .