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 20806 invoked from network); 9 Feb 2021 14:06:01 -0000 Received: from minnie.tuhs.org (45.79.103.53) by inbox.vuxu.org with ESMTPUTF8; 9 Feb 2021 14:06:01 -0000 Received: by minnie.tuhs.org (Postfix, from userid 112) id CA9D89C6D0; Wed, 10 Feb 2021 00:05:52 +1000 (AEST) Received: from minnie.tuhs.org (localhost [127.0.0.1]) by minnie.tuhs.org (Postfix) with ESMTP id 2C1B39BA47; Wed, 10 Feb 2021 00:05:19 +1000 (AEST) Received: by minnie.tuhs.org (Postfix, from userid 112) id 4B3659BA43; Wed, 10 Feb 2021 00:05:17 +1000 (AEST) Received: from mcvoy.com (mcvoy.com [192.169.23.250]) by minnie.tuhs.org (Postfix) with ESMTPS id E38A89BA42 for ; Wed, 10 Feb 2021 00:05:16 +1000 (AEST) Received: by mcvoy.com (Postfix, from userid 3546) id 2A9B735E31A; Tue, 9 Feb 2021 06:05:16 -0800 (PST) Date: Tue, 9 Feb 2021 06:05:16 -0800 From: Larry McVoy To: John Gilmore Message-ID: <20210209140516.GN13701@mcvoy.com> References: <8092.1612856554@hop.toad.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <8092.1612856554@hop.toad.com> User-Agent: Mutt/1.5.24 (2015-08-30) 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, Feb 08, 2021 at 11:42:34PM -0800, John Gilmore wrote: > Andrew Warkentin wrote: > > A lot of people still seem to believe that microkernels are inherently > > slow, even though fast microkernels (specifically QNX) predate the > > slow ones by several years. > > Wait, are we talking about the same operating system called QNX? > > We had a customer at Cygnus in the 1990s (perhaps QNX itself) who wanted > us to port the GNU compilers to it. It was the slowest, buggiest system > we ever tried to run our code on. I think they claimed POSIX > compatibility; hollow laugh! Has to be a different system. The QNX I ran on could handle a bunch of users on terminals on a 286. But that was pre-POSIX, maybe the POSIX stuff was crap, I wasn't using it then.