Date: Sat, 03 Jul 2004 00:24:18 -0500 From: "Thomas T. Veldhouse" <veldy@veldy.net> To: John Baldwin <jhb@FreeBSD.org> Cc: cvs-all@FreeBSD.org Subject: Re: HEADSUP: Native preemption added to the kernel scheduler Message-ID: <40E64302.2020700@veldy.net> In-Reply-To: <200407021721.52787.jhb@FreeBSD.org> References: <200407022021.i62KLi4Y041825@repoman.freebsd.org> <200407021721.52787.jhb@FreeBSD.org>
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This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enigC4563C683DE1F761106E8653 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit John Baldwin wrote: >In theory this is a big NOP except for some small optimizations in the form of >avoiding a few context switches and avoiding some run queue operations. >Several people have tested this code but there may be some remaining >adventures. Note that this adds a printf during dmesg for architectures that >do not support preemption about preemption being disabled and degrading >performance (mostly via increased latency). Preemption is enabled by >defining PREEMPTION in <machine/param.h> and architecture porters are >encouraged to get preemption working on their architecture. > > > The GENERIC kernel is failing to build now (12AM 7-03-2004) ... complaining about wrong number of arguments in the following file: src/sys/kern/sched_ule.c Unfortunately, I did not get the function details before rebooting my machine into windows. Tom Veldhouse --------------enigC4563C683DE1F761106E8653 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (MingW32) Comment: Using GnuPG with Thunderbird - http://enigmail.mozdev.org iD8DBQFA5kMGARgTFXYf0wARAoAmAJ9aKZGSeTuzt/FMl2Tu2noRs6woPACeNTRA Z0GCIwGZrlhiORhtUfnfWio= =pqMq -----END PGP SIGNATURE----- --------------enigC4563C683DE1F761106E8653--
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