From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on inbox.vuxu.org X-Spam-Level: X-Spam-Status: No, score=-0.5 required=5.0 tests=MAILING_LIST_MULTI, RCVD_IN_DNSWL_NONE,SUBJ_ALL_CAPS autolearn=ham autolearn_force=no version=3.4.4 Received: (qmail 32266 invoked from network); 9 Feb 2021 11:14:43 -0000 Received: from minnie.tuhs.org (45.79.103.53) by inbox.vuxu.org with ESMTPUTF8; 9 Feb 2021 11:14:43 -0000 Received: by minnie.tuhs.org (Postfix, from userid 112) id 5E0CD9C79F; Tue, 9 Feb 2021 21:14:38 +1000 (AEST) Received: from minnie.tuhs.org (localhost [127.0.0.1]) by minnie.tuhs.org (Postfix) with ESMTP id 7C5FF9BA51; Tue, 9 Feb 2021 21:14:03 +1000 (AEST) Received: by minnie.tuhs.org (Postfix, from userid 112) id 64D759BA43; Tue, 9 Feb 2021 21:13:58 +1000 (AEST) X-Greylist: delayed 591 seconds by postgrey-1.36 at minnie.tuhs.org; Tue, 09 Feb 2021 21:13:55 AEST Received: from castor.opentrend.net (li1631-87.members.linode.com [172.104.51.87]) by minnie.tuhs.org (Postfix) with ESMTP id 324F79BA42 for ; Tue, 9 Feb 2021 21:13:55 +1000 (AEST) Received: from mira.opentrend.net (mira.opentrend.net [119.18.33.224]) by castor.opentrend.net (Postfix) with ESMTP id 384E05A04E; Tue, 9 Feb 2021 11:04:00 +0000 (UTC) Date: Tue, 9 Feb 2021 21:03:43 +1000 (AEST) From: Robert Brockway X-X-Sender: robert@mira.opentrend.net To: John Gilmore In-Reply-To: <8092.1612856554@hop.toad.com> Message-ID: References: <8092.1612856554@hop.toad.com> User-Agent: Alpine 2.21 (DEB 202 2017-01-01) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII; format=flowed Subject: Re: [TUHS] QNX X-BeenThere: tuhs@minnie.tuhs.org X-Mailman-Version: 2.1.26 Precedence: list List-Id: The Unix Heritage Society mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: TUHS main list Errors-To: tuhs-bounces@minnie.tuhs.org Sender: "TUHS" On Mon, 8 Feb 2021, John Gilmore wrote: > Wait, are we talking about the same operating system called QNX? Hi John. I found your comment really interesting. I have less experience with QNX than you do but I do have a long-standing interest in OS design and found it interesting from that perspective. QNX is a high performance real-time OS that has run critical infrastructure for decades. Notably it's been used to run nuclear power stations in many countries. Usage may have declined in recent years but in the vintage you're discussing (90s) QNX would have been widely used in critical infrastructure. I contracted to an electricity provider about 8 or 9 years ago and QNX was definitely still there. Looks like BlackBerry now own QNX and the OS is still out there keeping critical stuff running. For the record I am aware that microkernels are not intrinsically slow and I think they can offer significant advantages. MINIX 3 is an interesing design, pity about the name. Cheers, Rob