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: a07f3367d7,3ffb65141990540c X-Google-Attributes: gida07f3367d7,public,usenet X-Google-NewGroupId: yes X-Google-Language: ENGLISH,ASCII Path: g2news2.google.com!news3.google.com!feeder.news-service.com!85.214.198.2.MISMATCH!eternal-september.org!.POSTED!not-for-mail From: Colin Paul Gloster Newsgroups: comp.lang.ada Subject: Re: Hard and soft real time with Ada Date: Mon, 17 May 2010 10:40:26 +0000 Organization: A noiseless patient Spider Message-ID: References: <4o3r0ouc23gx$.1dxknpkniq39u$.dlg@40tude.net> Reply-To: Colin Paul Gloster Mime-Version: 1.0 Content-Type: MULTIPART/MIXED; BOUNDARY="8323328-797990013-1274092842=:3761" Injection-Date: Mon, 17 May 2010 09:41:32 +0000 (UTC) Injection-Info: mx03.eternal-september.org; posting-host="kheEuXGHhE2Z5eF1gAST+A"; logging-data="14520"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX19/yldhqB7yIC97VEMdojZUvshV7rPzL4HwulJocZUeIQ==" User-Agent: Alpine 2.00 (LNX 1167 2008-08-23) In-Reply-To: <4o3r0ouc23gx$.1dxknpkniq39u$.dlg@40tude.net> Cancel-Lock: sha1:jELqcvFsnmPF4KPXMYUAVg9QsLI= X-X-Sender: Colin_Paul@Bluewhite64.example.net Xref: g2news2.google.com comp.lang.ada:11679 Date: 2010-05-17T10:40:26+00:00 List-Id: This message is in MIME format. The first part should be readable text, while the remaining parts are likely unreadable without MIME-aware tools. --8323328-797990013-1274092842=:3761 Content-Type: TEXT/PLAIN; charset=iso-8859-1 Content-Transfer-Encoding: QUOTED-PRINTABLE On Mon, 17 May 2010, Dmitry A. Kazakov sent: |--------------------------------------------------------------------------= -| |"On Sun, 16 May 2010 21:19:00 -0700 (PDT), zeta_no wrote: = | | = | |[..] = | | = | |> Question 3: Does the Real Time Annex helps with that? I mean trying to = | |> make real time programming on a general purpose OS." = | |--------------------------------------------------------------------------= -| A general operating system is not real-time, regardless of language. |--------------------------------------------------------------------------= -| |"[..] = | | = | |> Question 4: Now, if the best option is to use a real time kernel, what = | |> about the need for a USB camera and some specialized library like = | |> OpenCV for making some computer vision on a multi-core architecture? = | |> This kind of support on real time kernel looks almost inexistent, let = | |> say in open source options like RTEMS or MarteOS. = | | = | |Hmm, I doubt USB can be considered real-time. But I see no obvious reason = | |why a computer vision application could not tolerate some jitter (say = | |100=B5s). I guess you just do not need "very hard" real-time. = | | = | |[..]" = | |--------------------------------------------------------------------------= -| USB is not real-time. --8323328-797990013-1274092842=:3761--