From owner-cvs-src@FreeBSD.ORG Sat Jul 3 05:39:44 2004 Return-Path: Delivered-To: cvs-src@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 3244016A4CE; Sat, 3 Jul 2004 05:39:44 +0000 (GMT) Received: from ylpvm01.prodigy.net (ylpvm01-ext.prodigy.net [207.115.57.32]) by mx1.FreeBSD.org (Postfix) with ESMTP id E3F1C43D62; Sat, 3 Jul 2004 05:39:43 +0000 (GMT) (envelope-from kris@obsecurity.org) Received: from obsecurity.dyndns.org (adsl-63-207-60-35.dsl.lsan03.pacbell.net [63.207.60.35])i635ddUd000779; Sat, 3 Jul 2004 01:39:39 -0400 Received: by obsecurity.dyndns.org (Postfix, from userid 1000) id 7F4B652364; Fri, 2 Jul 2004 22:39:40 -0700 (PDT) Date: Fri, 2 Jul 2004 22:39:40 -0700 From: Kris Kennaway To: "Thomas T. Veldhouse" Message-ID: <20040703053940.GA60840@xor.obsecurity.org> References: <200407022021.i62KLi4Y041825@repoman.freebsd.org> <200407021721.52787.jhb@FreeBSD.org> <40E64302.2020700@veldy.net> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="ikeVEW9yuYc//A+q" Content-Disposition: inline In-Reply-To: <40E64302.2020700@veldy.net> User-Agent: Mutt/1.4.2.1i cc: cvs-all@FreeBSD.org cc: cvs-src@FreeBSD.org cc: src-committers@FreeBSD.org cc: current@FreeBSD.org cc: John Baldwin Subject: Re: HEADSUP: Native preemption added to the kernel scheduler X-BeenThere: cvs-src@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: CVS commit messages for the src tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 03 Jul 2004 05:39:44 -0000 --ikeVEW9yuYc//A+q Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Sat, Jul 03, 2004 at 12:24:18AM -0500, Thomas T. Veldhouse wrote: > John Baldwin wrote: >=20 > >In theory this is a big NOP except for some small optimizations in the= =20 > >form of avoiding a few context switches and avoiding some run queue=20 > >operations. Several people have tested this code but there may be some= =20 > >remaining adventures. Note that this adds a printf during dmesg for=20 > >architectures that do not support preemption about preemption being=20 > >disabled and degrading performance (mostly via increased latency). =20 > >Preemption is enabled by defining PREEMPTION in and=20 > >architecture porters are encouraged to get preemption working on their= =20 > >architecture. > > > >=20 > > >=20 > The GENERIC kernel is failing to build now (12AM 7-03-2004) ...=20 > complaining about wrong number of arguments in the following file: >=20 > src/sys/kern/sched_ule.c >=20 > Unfortunately, I did not get the function details before rebooting my=20 > machine into windows. That was fixed a few hours ago. Kris --ikeVEW9yuYc//A+q Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (FreeBSD) iD8DBQFA5kacWry0BWjoQKURAhITAJ91RqnZmdQEgRRyogsqRv22ET0UFQCghLex 5abTnnNqvn/o7YPMYMkgqSQ= =PUdY -----END PGP SIGNATURE----- --ikeVEW9yuYc//A+q--