From: smiley@zenzebra.mv.com
To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net>
Subject: Re: [9fans] Modern development language for Plan 9, WAS: Re: RESOLVED: recoving important header file rudely
Date: Mon, 21 Feb 2011 05:08:33 +0000 [thread overview]
Message-ID: <8662se0yb2.fsf@cmarib.ramside> (raw)
In-Reply-To: <AANLkTikA2u9AVa8KZyhBYmL3ziKqBeh1Zs=eqRm0+5W9@mail.gmail.com> (Devon H. O'Dell's message of "Fri, 18 Feb 2011 14:15:51 -0500")
"Devon H. O'Dell" <devon.odell@gmail.com> writes:
> determine where a node is placed is *not* cheap. In the end, an
> optimization that slows things down is not an optimization at all. You
There are many different kinds of optimization one can perform. One may
optimize compiled code for size, speed, simplicity, or reliability. One
may optimize communications for throughput, latency, reliability, or
bandwidth efficiency. Operations may be optimized to peform within
guaranteed constraints, such as with real-time applications, bandwith
contracting, etc.
Very often, optimizing for one property sacrifices optimization in one
or more of the others. For example, code optimized for speed may occupy
more memory; code optimized for simplicity may run more slowly; etc.
Which optimization (implementation) is chosen for a particular
application depends on the intended use of the application. Ultimately,
the resultant properties of the application should be reflected in its
documentation. If an app like rsync is intended for -- and good at --
synchronizing files, but not as fast as wget for copying them, it would
only be appropriate for rsync's documentation to indicate that design
assumption. That way, the user can choose the application with the
desired properties for the job.
It's not possible simply to "optimize" code. It always has to be
optimized for some specific set of intended uses. The design of a
protocol (such as 9P) for a certain set of circumstances entails that it
will perform better under some circumstances than others.
--
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next prev parent reply other threads:[~2011-02-21 5:08 UTC|newest]
Thread overview: 192+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-29 22:47 [9fans] HELP: recoving important header file rudely clobbered by mk smiley
2011-01-29 22:54 ` erik quanstrom
2011-01-29 22:58 ` Steve Simon
2011-01-30 1:16 ` smiley
2011-01-30 4:07 ` John Floren
2011-01-30 4:49 ` erik quanstrom
2011-01-30 4:56 ` John Floren
2011-02-01 6:22 ` smiley
2011-02-01 6:47 ` Federico G. Benavento
2011-02-01 6:54 ` John Floren
2011-01-29 23:24 ` [9fans] RESOLVED: " smiley
2011-01-29 23:41 ` Steve Simon
2011-01-30 14:19 ` [9fans] RESOLVED: recoving important header file rudely Richard Miller
2011-01-30 14:28 ` erik quanstrom
2011-01-31 18:02 ` smiley
2011-01-31 22:12 ` Steve Simon
2011-02-01 6:02 ` smiley
2011-02-01 6:26 ` Lucio De Re
2011-02-01 7:07 ` smiley
2011-02-01 7:22 ` Lucio De Re
2011-02-01 13:45 ` erik quanstrom
2011-02-01 16:24 ` Charles Forsyth
2011-02-01 6:45 ` ron minnich
2011-02-01 17:51 ` smiley
2011-02-01 18:33 ` ron minnich
2011-02-01 19:16 ` jimmy frasche
2011-02-02 0:28 ` smiley
2011-02-02 0:42 ` erik quanstrom
2011-02-02 0:47 ` ron minnich
2011-02-02 5:14 ` [9fans] Modern development language for Plan 9, WAS: " smiley
2011-02-02 5:37 ` Scott Sullivan
2011-02-02 5:38 ` EBo
2011-02-02 15:54 ` Anthony Sorace
2011-02-02 12:54 ` erik quanstrom
2011-02-02 13:48 ` Devon H. O'Dell
2011-02-02 17:47 ` David Leimbach
2011-02-02 17:53 ` erik quanstrom
2011-02-02 18:07 ` tlaronde
2011-02-02 18:26 ` David Leimbach
2011-02-02 18:48 ` tlaronde
2011-02-02 19:26 ` Nick LaForge
2011-02-03 0:39 ` Charles Forsyth
2011-02-02 17:44 ` David Leimbach
2011-02-02 17:50 ` erik quanstrom
2011-02-02 18:15 ` Jonathan Cast
2011-02-02 18:21 ` erik quanstrom
2011-02-02 18:36 ` David Leimbach
2011-02-02 18:38 ` erik quanstrom
2011-02-02 18:46 ` David Leimbach
2011-02-02 19:15 ` Jonathan Cast
2011-02-02 19:31 ` erik quanstrom
2011-02-02 19:48 ` Jeff Sickel
2011-02-02 20:07 ` Jonathan Cast
2011-02-02 20:11 ` erik quanstrom
2011-02-02 20:22 ` Jonathan Cast
2011-02-02 18:21 ` David Leimbach
2011-02-03 10:00 ` [9fans] Modern development language for Plan 9, Greg Comeau
2011-02-02 18:03 ` [9fans] Modern development language for Plan 9, WAS: Re: RESOLVED: recoving important header file rudely erik quanstrom
2011-02-02 18:30 ` David Leimbach
2011-02-18 5:23 ` ron minnich
2011-02-18 5:34 ` Paul Lalonde
2011-02-18 13:29 ` erik quanstrom
2011-02-18 13:45 ` dexen deVries
2011-02-18 14:54 ` David Leimbach
2011-02-18 15:15 ` Devon H. O'Dell
2011-02-18 16:11 ` erik quanstrom
2011-02-18 16:28 ` Devon H. O'Dell
2011-02-18 16:49 ` erik quanstrom
2011-02-18 17:10 ` Devon H. O'Dell
2011-02-18 17:32 ` erik quanstrom
2011-02-18 17:44 ` ron minnich
2011-02-18 19:28 ` Devon H. O'Dell
2011-02-18 19:33 ` erik quanstrom
2011-02-18 19:49 ` Devon H. O'Dell
2011-02-18 18:43 ` Joseph Stewart
2011-02-18 17:05 ` andrey mirtchovski
2011-02-18 17:12 ` Devon H. O'Dell
2011-02-18 16:53 ` dexen deVries
2011-02-18 16:59 ` Devon H. O'Dell
2011-02-18 17:07 ` erik quanstrom
2011-02-18 17:11 ` Devon H. O'Dell
2011-02-18 17:21 ` erik quanstrom
2011-02-18 17:52 ` John Floren
2011-02-18 18:46 ` Rob Pike
2011-02-18 19:15 ` Bakul Shah
2011-02-18 19:26 ` erik quanstrom
2011-02-18 19:46 ` Bakul Shah
2011-02-18 20:15 ` erik quanstrom
2011-02-18 21:06 ` John Floren
2011-02-18 22:21 ` Bakul Shah
2011-02-18 23:39 ` [9fans] Modern development language for Plan 9, Lyndon Nerenberg (VE6BBM/VE7TFX)
2011-02-19 10:26 ` [9fans] Modern development language for Plan 9, WAS: Re: RESOLVED: recoving important header file rudely Steve Simon
2011-02-19 15:09 ` erik quanstrom
2011-02-19 20:09 ` Bakul Shah
2011-02-19 21:15 ` erik quanstrom
2011-02-20 23:49 ` Bakul Shah
2011-02-21 14:47 ` erik quanstrom
2011-02-19 16:57 ` Skip Tavakkolian
2011-02-19 15:36 ` erik quanstrom
2011-02-24 10:09 ` [9fans] Modern development language for Plan 9, Greg Comeau
2011-02-18 19:35 ` [9fans] Modern development language for Plan 9, WAS: Re: RESOLVED: recoving important header file rudely David Leimbach
2011-02-18 20:10 ` Bakul Shah
2011-02-18 21:03 ` ron minnich
2011-02-18 23:55 ` Federico G. Benavento
2011-02-24 10:09 ` [9fans] Modern development language for Plan 9, Greg Comeau
2011-02-18 19:15 ` [9fans] Modern development language for Plan 9, WAS: Re: RESOLVED: recoving important header file rudely Devon H. O'Dell
2011-02-21 5:08 ` smiley [this message]
2011-02-18 17:16 ` Russ Cox
2011-02-18 17:12 ` andrey mirtchovski
2011-02-19 10:34 ` Steve Simon
2011-02-19 17:25 ` dexen deVries
2011-02-02 4:19 ` [9fans] " Federico G. Benavento
2011-02-02 19:15 ` smiley
2011-02-02 21:47 ` ron minnich
2011-02-03 3:35 ` smiley
2011-02-03 4:32 ` andrey mirtchovski
2011-02-03 6:15 ` Lucio De Re
2011-02-03 7:54 ` dexen deVries
2011-02-03 9:48 ` Charles Forsyth
2011-02-03 13:01 ` erik quanstrom
2011-02-03 13:40 ` roger peppe
2011-02-03 13:59 ` erik quanstrom
2011-02-03 14:16 ` roger peppe
2011-02-03 14:17 ` erik quanstrom
2011-02-03 14:24 ` roger peppe
2011-02-03 14:38 ` Charles Forsyth
2011-02-03 18:45 ` Skip Tavakkolian
2011-02-03 16:23 ` Noah Evans
2011-02-01 8:25 ` Federico G. Benavento
2011-02-01 8:37 ` Akshat Kumar
2011-02-01 9:02 ` Federico G. Benavento
2011-02-01 14:11 ` erik quanstrom
[not found] ` <AANLkTimYW2wofCNn1WB09cTVrQ69QxjPMZqY=Qrri5Xi@mail.gmail.com>
[not found] ` <AANLkTikM+LcEzaHMjWoSGubNnzXx-5h_bprQcJsrGnnG@mail.gmail.com>
[not found] ` <AANLkTim4mPBHv8R=2XwdWaBc_aPHyRjj_CbdkgC8KZbd@mail.gmail.com>
[not found] ` <AANLkTi=9HkdLfNLFWxddDkHWC8w_uWKPEnWQ4r2gD7an@mail.gmail.com>
[not found] ` <AANLkTikjYkyW75PLm8z65=1+gTLUZLxG-xcN9wkQVuPr@mail.gmail.com>
[not found] ` <AANLkTimLMLsWWQtVPZwGb0qwFxjbpy05qVZHDv92LfYY@mail.gmail.com>
[not found] ` <AANLkTimoXQLMpciQh_tLRfS5ht8ONFvqz2QXEC0td2G4@mail.gmail.com>
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2011-02-01 17:20 ` Jacob Todd
2011-02-01 6:54 ` [9fans] HELP: recoving important header file rudely clobbered by mk ron minnich
2011-02-01 14:49 ` erik quanstrom
2011-02-01 14:58 ` Eric Van Hensbergen
2011-02-01 15:18 ` erik quanstrom
2011-02-01 15:37 ` Eric Van Hensbergen
2011-02-01 15:45 ` erik quanstrom
2011-02-01 16:31 ` Eric Van Hensbergen
2011-02-01 16:45 ` erik quanstrom
2011-02-01 16:59 ` ron minnich
2011-02-02 3:46 ` Federico G. Benavento
2011-02-01 16:41 ` ron minnich
2011-02-01 16:25 ` Charles Forsyth
2011-02-01 7:01 ` Federico G. Benavento
2011-02-02 19:05 ` smiley
2011-02-03 10:16 ` [9fans] HELP: recoving important header file rudely clobbered Richard Miller
2011-02-03 10:24 ` dexen deVries
2011-02-03 10:27 ` dexen deVries
2011-02-03 10:23 ` Richard Miller
2011-02-03 10:37 ` roger peppe
2011-02-03 10:48 ` Lucio De Re
2011-02-02 6:56 [9fans] Modern development language for Plan 9, WAS: Re: RESOLVED: recoving important header file rudely Jacob Todd
2011-02-02 7:06 ` ron minnich
2011-02-02 7:25 ` Bakul Shah
2011-02-02 7:25 ` Lucio De Re
2011-02-02 7:35 ` Nick LaForge
2011-02-02 17:45 ` David Leimbach
2011-02-02 19:19 ` Bakul Shah
2011-02-03 0:30 ` Charles Forsyth
2011-02-03 0:21 ` erik quanstrom
2011-02-03 0:52 ` Charles Forsyth
2011-02-03 0:50 ` ron minnich
2011-02-03 2:16 ` Bakul Shah
2011-02-03 2:25 ` David Leimbach
2011-02-03 2:26 ` erik quanstrom
2011-02-03 15:08 ` David Leimbach
2011-02-03 16:19 ` Eugene Gorodinsky
2011-02-03 17:41 ` Bakul Shah
2011-02-03 18:11 ` erik quanstrom
2011-02-03 18:33 ` Bakul Shah
2011-02-03 18:54 ` erik quanstrom
2011-02-03 19:40 ` Bakul Shah
2011-02-03 20:33 ` erik quanstrom
2011-02-04 7:16 ` Bakul Shah
2011-02-04 14:38 ` erik quanstrom
2011-02-03 18:29 ` Joseph Stewart
2011-02-03 8:35 ` Charles Forsyth
2011-02-03 8:56 ` EBo
2011-02-03 9:46 ` Charles Forsyth
2011-02-03 9:47 ` EBo
2011-02-03 9:50 ` Lucio De Re
2011-02-03 10:38 ` C H Forsyth
2011-02-03 12:07 ` EBo
2011-02-03 20:49 ` Federico G. Benavento
2011-02-03 21:07 ` ron minnich
2011-02-03 21:32 ` Steve Simon
2011-02-03 23:19 ` EBo
2011-02-03 18:21 ` smiley
2011-02-03 18:50 ` John Floren
2011-02-04 5:54 ` andrey mirtchovski
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