From: ron minnich <rminnich@gmail.com>
To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net>
Subject: Re: [9fans] Barrelfish
Date: Sat, 17 Oct 2009 17:06:00 -0700 [thread overview]
Message-ID: <13426df10910171706o6f6b9274w34b6d262d68ca387@mail.gmail.com> (raw)
In-Reply-To: <A90043D02D52B2CBF2804FA4@192.168.1.2>
the use of qualitative terms such as "embarassingly parallel" often
leads to confusion.
Scaling can be measured. It can be quantified. Nothing scales forever,
because at some point you want to get an answer back to a person,
and/or the components of the app need to talk to each other. It's
these basic timing elements that can tell you a lot about scaling.
Actually running the app tells you a bit more, of course.
Even the really easy apps hit a wall sooner or later. I still remember
the struggle I had to scale a simple app to a 16 node cluster in the
early days (1992). That was a long time ago and we've gone a lot
further than that, but you'd be surprised just how hard it can be,
even with "easy" applications.
ron
next prev parent reply other threads:[~2009-10-18 0:06 UTC|newest]
Thread overview: 90+ messages / expand[flat|nested] mbox.gz Atom feed top
[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 [this message]
2009-10-18 0:54 ` Roman Shaposhnik
[not found] <<4ADD147A.4090801@maht0x0r.net>
2009-10-20 2:11 ` erik quanstrom
2009-10-20 2:33 ` matt
[not found] <<20091019182352.GA1688@polynum.com>
2009-10-19 18:48 ` erik quanstrom
[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] <<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] <<20091018031508.717CE5B30@mail.bitblocks.com>
2009-10-19 13:44 ` erik quanstrom
2009-10-19 14:36 ` David Leimbach
[not found] <<d50d7d460910161417w45b5c675p8740315aaf6861f@mail.gmail.com>
2009-10-16 22:25 ` erik quanstrom
[not found] <<20091016172030.GB3135@nipl.net>
2009-10-16 18:34 ` erik quanstrom
[not found] <<3e1162e60910150805q2ea3f682w688299a39274051c@mail.gmail.com>
2009-10-15 15:28 ` erik quanstrom
[not found] <<4AD70EE9.1010208@conducive.org>
2009-10-15 13:52 ` erik quanstrom
[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
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
2009-10-14 21:36 ` 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
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
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