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From: Tim Newsham <newsham@lava.net>
To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net>
Subject: Re: [9fans] Barrelfish
Date: Wed, 14 Oct 2009 17:32:00 -1000	[thread overview]
Message-ID: <Pine.BSI.4.64.0910141730110.23231@malasada.lava.net> (raw)
In-Reply-To: <BA3EC51B-0E3C-4FD1-B264-BE848BDD5933@gmail.com>

> If you look at the core of Barrelfish, you'll see that this is essentially
> what they are doing -- essentially using an extremely small microkernel (like
> L4) that's very
> efficient at various forms of message passing.  That's the only thing that is
> duplicated on the various cores.  The services themselves can be distributed
> and/or replicated as appropriate (although their approach favors replication)
> -- it all depends on the characteristics of the workload.

it sounds like the kernel (L4-like, supposedly tuned to the specific
hardware) and the "monitor" (userland, portable) are shared, from
the paper.  Btw, they have the source code up for free
(http://www.barrelfish.org/release_20090914.html) which I supposed
could be used to more definitively answer these questions with
some effort...

>    -eric

Tim Newsham
http://www.thenewsh.com/~newsham/



  reply	other threads:[~2009-10-15  3:32 UTC|newest]

Thread overview: 92+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-10-14 19:09 Tim Newsham
2009-10-14 19:54 ` Roman Shaposhnik
2009-10-14 21:21   ` Tim Newsham
2009-10-14 21:33     ` Lyndon Nerenberg (VE6BBM/VE7TFX)
2009-10-14 21:42       ` Noah Evans
2009-10-14 21:45         ` erik quanstrom
2009-10-14 21:57           ` Noah Evans
2009-10-14 22:10         ` Eric Van Hensbergen
2009-10-14 22:21           ` Noah Evans
2009-10-15  1:03     ` David Leimbach
2009-10-15  1:50     ` Roman Shaposhnik
2009-10-15  2:12       ` Eric Van Hensbergen
2009-10-15 10:53       ` Sam Watkins
2009-10-15 11:50         ` Richard Miller
2009-10-15 12:00           ` W B Hacker
2009-10-16 17:03           ` Sam Watkins
2009-10-16 18:17             ` ron minnich
2009-10-16 18:39               ` Wes Kussmaul
2009-10-17 12:42             ` Roman Shaposhnik
2009-10-15 11:56         ` Josh Wood
2009-10-15 13:11         ` hiro
2009-10-15 15:05           ` David Leimbach
2009-10-18  1:15         ` Roman Shaposhnik
2009-10-18  3:15           ` Bakul Shah
     [not found]             ` <e763acc10910180606q1312ff7cw9a465d6af39c0fbe@mail.gmail.com>
2009-10-18 13:22               ` Roman Shaposhnik
2009-10-18 19:18                 ` Bakul Shah
2009-10-18 20:12                   ` ron minnich
2009-10-20  0:04                     ` [9fans] Parallelism is over a barrel(fish)? Lyndon Nerenberg (VE6BBM/VE7TFX)
2009-10-20  1:11                       ` W B Hacker
2009-10-14 21:36   ` [9fans] Barrelfish Eric Van Hensbergen
2009-10-15  2:05     ` Roman Shaposhnik
2009-10-15  2:17       ` Eric Van Hensbergen
2009-10-15  3:32         ` Tim Newsham [this message]
2009-10-15  3:59           ` Eric Van Hensbergen
2009-10-15 17:39             ` Tim Newsham
2009-10-15 18:28 ` Christopher Nielsen
2009-10-15 18:55   ` W B Hacker
     [not found] <<20091015105328.GA18947@nipl.net>
2009-10-15 13:27 ` erik quanstrom
2009-10-15 13:40   ` Richard Miller
2009-10-16 17:20   ` Sam Watkins
2009-10-16 18:18     ` Latchesar Ionkov
2009-10-19 15:26       ` Sam Watkins
2009-10-19 15:33         ` andrey mirtchovski
2009-10-19 15:50         ` ron minnich
2009-10-16 21:17     ` Jason Catena
2009-10-17 20:58       ` Dave Eckhardt
2009-10-18  2:09         ` Jason Catena
2009-10-18 16:02           ` Dave Eckhardt
2009-10-17 18:45   ` Eris Discordia
2009-10-17 21:07     ` Steve Simon
2009-10-17 21:18       ` Eric Van Hensbergen
2009-10-18  8:48         ` Eris Discordia
2009-10-18  8:44       ` Eris Discordia
2009-10-19 15:57     ` Sam Watkins
2009-10-19 16:03       ` ron minnich
2009-10-19 16:46       ` Russ Cox
2009-10-20  2:16       ` matt
2009-10-20  9:15         ` Steve Simon
2009-10-21 15:43         ` Sam Watkins
2009-10-21 16:11           ` Russ Cox
2009-10-21 16:37             ` Sam Watkins
2009-10-21 18:01           ` ron minnich
2009-10-28 15:37           ` matt
     [not found]   ` <A90043D02D52B2CBF2804FA4@192.168.1.2>
2009-10-18  0:06     ` ron minnich
2009-10-18  0:54       ` Roman Shaposhnik
     [not found] <<207092dc429fe476c2046d537aeaa400@hamnavoe.com>
2009-10-15 13:52 ` erik quanstrom
2009-10-15 15:07   ` David Leimbach
2009-10-15 15:21     ` roger peppe
2009-10-16 17:21       ` Sam Watkins
2009-10-16 23:39         ` Nick LaForge
2009-10-18  1:12         ` Roman Shaposhnik
2009-10-19 14:14           ` matt
2009-10-19 16:00           ` Sam Watkins
     [not found] <<4AD70EE9.1010208@conducive.org>
2009-10-15 13:52 ` erik quanstrom
     [not found] <<3e1162e60910150805q2ea3f682w688299a39274051c@mail.gmail.com>
2009-10-15 15:28 ` erik quanstrom
     [not found] <<20091016172030.GB3135@nipl.net>
2009-10-16 18:34 ` erik quanstrom
     [not found] <<d50d7d460910161417w45b5c675p8740315aaf6861f@mail.gmail.com>
2009-10-16 22:25 ` erik quanstrom
     [not found] <<20091018031508.717CE5B30@mail.bitblocks.com>
2009-10-19 13:44 ` erik quanstrom
2009-10-19 14:36   ` David Leimbach
     [not found] <<20091019155738.GB13857@nipl.net>
2009-10-19 16:05 ` erik quanstrom
2009-10-19 16:34   ` Sam Watkins
2009-10-19 17:30     ` ron minnich
2009-10-19 17:57       ` W B Hacker
2009-10-19 18:14       ` David Leimbach
     [not found] <<4ADC7439.3060502@maht0x0r.net>
2009-10-19 16:13 ` erik quanstrom
2009-10-19 18:23   ` tlaronde
2009-10-20  1:38   ` matt
2009-10-20  1:58     ` Eris Discordia
2009-10-20  2:17       ` matt
     [not found] <<20091019182352.GA1688@polynum.com>
2009-10-19 18:48 ` erik quanstrom
     [not found] <<4ADD147A.4090801@maht0x0r.net>
2009-10-20  2:11 ` erik quanstrom
2009-10-20  2:33   ` matt

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