From owner-freebsd-stable@FreeBSD.ORG Fri Dec 16 21:51:27 2011 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx2.freebsd.org (mx2.freebsd.org [IPv6:2001:4f8:fff6::35]) by hub.freebsd.org (Postfix) with ESMTP id B8595106564A for ; Fri, 16 Dec 2011 21:51:27 +0000 (UTC) (envelope-from dougb@FreeBSD.org) Received: from 172-17-198-245.globalsuite.net (hub.freebsd.org [IPv6:2001:4f8:fff6::36]) by mx2.freebsd.org (Postfix) with ESMTP id 3437D14F901; Fri, 16 Dec 2011 21:51:27 +0000 (UTC) Message-ID: <4EEBBD5E.50603@FreeBSD.org> Date: Fri, 16 Dec 2011 13:51:26 -0800 From: Doug Barton Organization: http://SupersetSolutions.com/ User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:8.0) Gecko/20111110 Thunderbird/8.0 MIME-Version: 1.0 To: Michel Talon References: <1350C7A0-BE58-4C34-804A-A6A3C1C61761@lpthe.jussieu.fr> In-Reply-To: <1350C7A0-BE58-4C34-804A-A6A3C1C61761@lpthe.jussieu.fr> X-Enigmail-Version: undefined OpenPGP: id=1A1ABC84 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: freebsd-stable@freebsd.org Subject: Re: switching schedulers (Re: SCHED_ULE should not be the default) X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 16 Dec 2011 21:51:27 -0000 On 12/16/2011 13:40, Michel Talon wrote: > Adrian Chadd said: > > >> Hi all, >> >> Can someone load a kernel module dynamically at boot-time? >> >> Ie, instead of compiling it in, can 4bsd/ule be loaded as a KLD at >> boot-time, so the user can just change by rebooting? >> >> That may be an acceptable solution for now. > > As Luigi explained, the problem is not to have code for both > schedulers residing in the kernel, the problem is to migrate > processes from one scheduler to the other. I think dynamically switching schedulers on a running system and loading one or the other at boot time are different problems, are they not? Doug -- [^L] Breadth of IT experience, and depth of knowledge in the DNS. Yours for the right price. :) http://SupersetSolutions.com/