From mboxrd@z Thu Jan 1 00:00:00 1970 From: "sandeep lahane" Subject: Re: Why is Linux not RTOS? Date: Thu, 5 Apr 2007 15:53:16 +0530 Message-ID: <2d51cbf80704050323u48bcb2f1u4861c3ff8a3eebe1@mail.gmail.com> References: <7783925d0704040521q3755394uf774884b5298eec2@mail.gmail.com> <7783925d0704040605s4590d421y39ae5b13a020a8a@mail.gmail.com> <200704051236.29847.Tzahi.ML2@gmail.com> <2d51cbf80704050305n60bec989wf3e1d1dd046a5d4d@mail.gmail.com> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: DKIM-Signature: a=rsa-sha1; c=relaxed/relaxed; d=gmail.com; s=beta; h=domainkey-signature:received:received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=bPk+3YQ9JBa1/axUaGMOvSTKb8TpQAagSNav4lULIAc2msFjcxVFbd8NvrnMSXU5UFTIPXrz/PG0ZsSL4L5zQMMCFHlZbwwVb/sAPegqaM2c4KsLSu50Y4JQbZiatkliJs4/4dVtqMe4Edu8ceNNmLdANM3dVxXlqDmve/Z8LyE= In-Reply-To: Content-Disposition: inline Sender: linux-newbie-owner@vger.kernel.org List-Id: Content-Type: text/plain; charset="us-ascii"; format="flowed" To: Raseel Bhagat Cc: kernelnewbies@nl.linux.org, linux-newbie@vger.kernel.org On 4/5/07, Raseel Bhagat wrote: > Hi Sandeep, > > On 4/5/07, sandeep lahane wrote: > > >They have a paravirtualization based approach using which > > guest OSes like RTOS or other rich OSes can be run simultaneously on > > an embedded platform. These guest OSes can communicate using inter OS > > communication mechanisms. They are partitioning resources which can be > > partitioned like system RAM and resources like CPU, MMU and interrupt > > controller are virtualized since they can't be partitioned. So > > basically, what they are doing is almost totally irrelevant with this > > question, since they are not trying to make Linux a RTOS, rather they > > are making Linux and other guest OSes co-exist with RTOSes > > simultaneously. Please CMIIW. > > > > I completely concur with you. And it makes lot of sense too. > For example RTLinux (Real time Linux) from FSMLabs is another such approach. > They have a micro-kernel , which is basically a core real tie\me > kernel, which sits on top of the vanilla linux kernel. This way, all > the real time tasks are handled by the Microkernel during whcih time > Linux kernel runs as an idle process. Only when no RT tasks are > present, the vanilla Linux kernel executes all the non-RT tasks. > This way, RT behaviour is accomplished without having to modify the > core Linux kernel. > > -- > To unsubscribe from this list: send an email with > "unsubscribe kernelnewbies" to ecartis@nl.linux.org > Please read the FAQ at http://kernelnewbies.org/FAQ > > Yes, may be the poster is looking for RTLinux kind of thing. -- Regards, Sandeep. - To unsubscribe from this list: send the line "unsubscribe linux-newbie" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.linux-learn.org/faqs