Date: Wed, 18 Jan 2006 00:24:36 -0500 From: Kris Kennaway <kris@obsecurity.org> To: John Baldwin <jhb@freebsd.org> Cc: freebsd-sparc64@freebsd.org Subject: Re: Command to start and stop a cpu Message-ID: <20060118052436.GA98676@xor.obsecurity.org> In-Reply-To: <200601171314.05251.jhb@freebsd.org> References: <20060116185354.GA22674@SDF.LONESTAR.ORG> <200601171206.48133.jhb@freebsd.org> <84dead720601170928r567711d3t31cd297acb755989@mail.gmail.com> <200601171314.05251.jhb@freebsd.org>
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--2fHTh5uZTiUOsy+g Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue, Jan 17, 2006 at 01:14:03PM -0500, John Baldwin wrote: > On Tuesday 17 January 2006 12:28, Joseph Koshy wrote: > > > I think that is x86-only though. I don't think there is > > > support for that on sparc64. > > > > SCHED_4BSD uses hlt_cpus_mask. >=20 > Yes, but only i386 and amd64 actually set it and use it to keep CPUs idle: I'd love a way to halt/disable CPUs on sparc64, because then I could run comparative benchmarks with 1-14 cpus enabled to test scaling. Kris --2fHTh5uZTiUOsy+g Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2 (FreeBSD) iD8DBQFDzdEUWry0BWjoQKURAjGtAKDIVW3mb47miwjtVIZic/3WTKFHsQCg5wFr ZSwk5v+VrBfQA3rI40MbQhM= =NnT8 -----END PGP SIGNATURE----- --2fHTh5uZTiUOsy+g--
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