From owner-freebsd-hackers Fri Apr 7 16:15:18 2000 Delivered-To: freebsd-hackers@freebsd.org Received: from mail.wrs.com (unknown-1-11.wrs.com [147.11.1.11]) by hub.freebsd.org (Postfix) with ESMTP id 664C237C2AD for ; Fri, 7 Apr 2000 16:15:10 -0700 (PDT) (envelope-from davidhol@windriver.com) Received: from papermill.wrs.com (papermill [147.11.48.34]) by mail.wrs.com (8.9.3/8.9.1) with ESMTP id QAA27620; Fri, 7 Apr 2000 16:15:07 -0700 (PDT) Received: from papermill (localhost [127.0.0.1]) by papermill.wrs.com (8.9.1/8.9.0) with ESMTP id QAA01455; Fri, 7 Apr 2000 16:15:08 -0700 (PDT) Message-Id: <200004072315.QAA01455@papermill.wrs.com> To: Ugen Antsilevitch Cc: freebsd-hackers@FreeBSD.ORG From: David Holloway Subject: Re: Is traditional unixes kernel really stable ? In-reply-to: Your message of "Fri, 07 Apr 2000 19:09:27 EDT." <38EE6AA7.55DEA97D@xonix.com> Mime-Version: 1.0 (generated by tm-edit 7.106) Content-Type: text/plain; charset=US-ASCII Date: Fri, 07 Apr 2000 16:15:08 -0700 Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG In message <38EE6AA7.55DEA97D@xonix.com>, Ugen Antsilevitch writes: > > >Gustavo V G C Rios wrote: > >> "Yevmenkin, Maksim N, CSCIO" wrote: >> >> > only one :-) performance :-) context switch is a slow operation. >> > >> > Thanks, >> > emax >> >> Excuse me gentleman, who said that ? >> Take time to visit this site: http://www.qnx.com/iat/download/index.html >> >> You'll be introduced to a hard-real time OS (with a very modular >> design). >> The while OS fits in a single floppy with TCP/IP, GUI, web browser, http >> server, and again, all that in a single floppy. HOw can it be done? >> >> This OS uses microkernel arch. >> Fill their form in order to get a book describing its OS internal arch. >> >> Can some here explain me why such approach is not taken by FreeBSD? >> >> PS: I never seen anything fast and reliable like that. > >Ugh...isn't it obvious by now that this is a shameless pitch for QNX... >It is sad that people here actually respond to this sort of thing. >"How come you guys are not like Linux?" questions should have >developed some tolerance in you.. > >QNX is great and all the power to it. This is FreeBSD and it is unix and BSD >and as such it is what it is. If it would take a QNX approach then it would no >t be >FreeBSD but something rather different. Thats the answer... > >I am sure some people somwhere work on marrying microkernels and bsd systems >and in fact isn't this what Darwin is all about? If you like it - there is pro >bably a >darwin mailing list. >--Ugen > Yeah I wouldn't want to have to retaliate with shameless plugs of vxWorks. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message