From owner-freebsd-questions@FreeBSD.ORG Mon Nov 27 00:30:55 2006 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 2F57016A40F for ; Mon, 27 Nov 2006 00:30:55 +0000 (UTC) (envelope-from kris@obsecurity.org) Received: from elvis.mu.org (elvis.mu.org [192.203.228.196]) by mx1.FreeBSD.org (Postfix) with ESMTP id 4246D43D45 for ; Mon, 27 Nov 2006 00:29:57 +0000 (GMT) (envelope-from kris@obsecurity.org) Received: from obsecurity.dyndns.org (elvis.mu.org [192.203.228.196]) by elvis.mu.org (Postfix) with ESMTP id D35511A3C19; Sun, 26 Nov 2006 16:30:53 -0800 (PST) Received: by obsecurity.dyndns.org (Postfix, from userid 1000) id C8C0251316; Sun, 26 Nov 2006 19:30:36 -0500 (EST) Date: Sun, 26 Nov 2006 19:30:36 -0500 From: Kris Kennaway To: RW Message-ID: <20061127003036.GA82393@xor.obsecurity.org> References: <499c70c0611260212sa53a2bcq6345f063b7bfdddf@mail.gmail.com> <200611261706.57754.fbsd06@mlists.homeunix.com> <20061126194359.GB76643@xor.obsecurity.org> <200611270013.44016.fbsd06@mlists.homeunix.com> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="cNdxnHkX5QqsyA0e" Content-Disposition: inline In-Reply-To: <200611270013.44016.fbsd06@mlists.homeunix.com> User-Agent: Mutt/1.4.2.2i Cc: freebsd-questions@freebsd.org Subject: Re: FreeBSD 6.2: ULE vs 4BSD X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 27 Nov 2006 00:30:55 -0000 --cNdxnHkX5QqsyA0e Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Mon, Nov 27, 2006 at 12:13:43AM +0000, RW wrote: > On Sunday 26 November 2006 19:43, Kris Kennaway wrote: > > On Sun, Nov 26, 2006 at 05:06:57PM +0000, RW wrote: > > > On Sunday 26 November 2006 12:18, Andrew Pantyukhin wrote: > > > > On 11/26/06, John Smith wrote: > > > > > Hello, > > > > > > > > > > What shall I use as a scheduler on it? 4BSD or ULE? > > > > > > > > The general consensus is you should not touch ULE unless > > > > you're a developer willing to fix some outstanding issues and > > > > maybe take active maintainership of it. > > > > > > I think that's a bit strong. I've used both, off and on, on my Desktop > > > machine and not seen any real difference. > > > > Guess you're one of the lucky ones then. I hope you can understand > > why in general users should not use a kernel feature with known > > problems, and they should at the very least turn it off and reconfirm > > their problems before reporting them, to avoid wasting developer time. >=20 > It might save everyone a lot of time if the GENERIC file entry were chang= ed=20 > to: >=20 > #options SCHED_ULE # ULE scheduler (experimental) Better yet, it was removed from GENERIC altogether and a warning added to the NOTES file: # SCHED_ULE is a new scheduler that has been designed for SMP and has some # advantages for UP as well. It is intended to replace the 4BSD scheduler # over time. NOTE: SCHED_ULE is currently considered experimental and is # not recommended for production use at this time. Kris --cNdxnHkX5QqsyA0e Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.5 (FreeBSD) iD8DBQFFajGsWry0BWjoQKURArvaAJ92hC+5AUonh/i7fJMx+PywjhrSmACeKMMc mQVC9oSGpg7dAGY0QNbQM+8= =Ichg -----END PGP SIGNATURE----- --cNdxnHkX5QqsyA0e--