Date: Tue, 9 Sep 2008 05:54:57 +1000 From: Peter Jeremy <peterjeremy@optushome.com.au> To: Darren Reed <darrenr@freebsd.org> Cc: freebsd-hackers@freebsd.org, Kip Macy <kmacy@freebsd.org>, freebsd-sun4v@freebsd.org Subject: Re: the future of sun4v Message-ID: <20080908195457.GD15376@server.vk2pj.dyndns.org> In-Reply-To: <48C4DEEF.7070201@freebsd.org> References: <3c1674c90808211442t707966fq29997b53a70ed2f7@mail.gmail.com> <20080822113317.GD32539@server.vk2pj.dyndns.org> <48AEA699.10903@FreeBSD.org> <20080822201603.GA14444@alchemy.franken.de> <48C4DEEF.7070201@freebsd.org>
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--5LiOUhUlsRX0HDkW Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable [cc list trimmed] On 2008-Sep-08 01:14:39 -0700, Darren Reed <darrenr@freebsd.org> wrote: >The critical issue for freebsd (and any operating system for >that matter) on rock is how well does the kernel scale to a >system with that many concurrent threads? Right now it doesn't. And based on some previous threads, there is a lot of redesign to do before it can. But stability needs to come before scalability. There's no point in FreeBSD pretending it can support some arbitrary number of CPUs when it panics due to races in one of the CPU subsystems - which is my understanding of the current sun4v state. --=20 Peter Jeremy Please excuse any delays as the result of my ISP's inability to implement an MTA that is either RFC2821-compliant or matches their claimed behaviour. --5LiOUhUlsRX0HDkW Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.9 (FreeBSD) iEYEARECAAYFAkjFgxEACgkQ/opHv/APuIfMpACgvrMTawiIxmUTlZpHyobVSSCB MhYAoIoMncY72LEhXX3BCPuJmyxsP7lF =K28Y -----END PGP SIGNATURE----- --5LiOUhUlsRX0HDkW--
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