From mboxrd@z Thu Jan 1 00:00:00 1970 From: Armin Steinhoff Subject: Re: TinxCore and PREEMPT_RT Date: Thu, 16 Sep 2010 13:51:36 +0200 Message-ID: <4C9204C8.4080001@steinhoff.de> References: <201009151059.23039.klaas.van.gend@mvista.com> <4C90A814.8020605@steinhoff.de> <4C91E59E.5010203@steinhoff.de> <8762y6dmat.fsf@lola.goethe.zz> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: linux-rt-users@vger.kernel.org To: David Kastrup Return-path: Received: from moutng.kundenserver.de ([212.227.17.8]:56258 "EHLO moutng.kundenserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753856Ab0IPLt3 (ORCPT ); Thu, 16 Sep 2010 07:49:29 -0400 In-Reply-To: <8762y6dmat.fsf@lola.goethe.zz> Sender: linux-rt-users-owner@vger.kernel.org List-ID: David Kastrup wrote: > Armin Steinhoff writes: > >> Hi all, >> >> yes, it's running ! >> >> TinyCore is very small (10MB) , works with the PREEMPT_RT patch (at >> least version 2.6.29.6), full SMP support and boots in few seconds! >> The MicroCore version needs only 6MB ... > Anybody else nostalgic about the times where it took around 10kB to host > a realtime multi-tasking operating system including self-hosting target > compiler? > > And the challenge was to fit bootstrap loader and operating system on > one track of the floppy disk? > > Heck, the first UNIXes I used regularly were quite workable with 4MB of > main memory. I developed years ago a control system for an automatic store system based on Xenix 1.x and Informix for a 512kB machine. So 4MB seems to be very huge :) --Armin PS: TinyCore is an issue for the guys addicted to the embedded real-time stuff ... based on the 2.6 kernel !