From: "Russ Cox" <rsc@swtch.com>
To: "Fans of the OS Plan 9 from Bell Labs" <9fans@cse.psu.edu>
Subject: Re: [9fans] QTCTL?
Date: Wed, 31 Oct 2007 16:17:14 -0400 [thread overview]
Message-ID: <ee9e417a0710311317q63988bf7xc987fbc5ae92b5b3@mail.gmail.com> (raw)
In-Reply-To: <db443cf539e9efb3d5a545676b0afe68@quanstro.net>
Plan 9's default is not to cache,
making a "don't cache this" bit
unnecessary. If the user explicitly
requests caching (by using cfs, say),
then he's responsible for making sure
it is appropriate.
If I tell the computer to cache /net,
that's not the computer's problem,
any more than if I bind /proc /net.
Since there's no coherence protocol
anyway, caching can't be done automatically.
It might give the right answer most of
the time, but it will screw up corner cases
and make the system more fragile.
This whole synthetic vs not mentality
is Unix brain-damange. On Plan 9 there
is no distinction. Everything is synthetic
(or everything is not, depending on your
point of view).
Russ
next prev parent reply other threads:[~2007-10-31 20:17 UTC|newest]
Thread overview: 77+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-31 18:40 Francisco J Ballesteros
2007-10-31 18:56 ` Eric Van Hensbergen
2007-10-31 19:13 ` Charles Forsyth
2007-10-31 19:33 ` Eric Van Hensbergen
2007-10-31 19:39 ` erik quanstrom
2007-10-31 20:43 ` geoff
2007-10-31 21:32 ` Charles Forsyth
2007-10-31 22:48 ` roger peppe
2007-10-31 23:35 ` erik quanstrom
2007-11-01 9:29 ` roger peppe
2007-11-01 11:03 ` Eric Van Hensbergen
2007-11-01 11:19 ` Charles Forsyth
2007-11-01 12:11 ` erik quanstrom
2007-10-31 19:42 ` erik quanstrom
2007-10-31 19:49 ` Eric Van Hensbergen
2007-10-31 20:03 ` erik quanstrom
2007-10-31 20:10 ` Latchesar Ionkov
2007-10-31 20:12 ` Eric Van Hensbergen
2007-10-31 20:17 ` Russ Cox [this message]
2007-10-31 20:29 ` Francisco J Ballesteros
2007-10-31 20:48 ` Charles Forsyth
2007-10-31 21:23 ` Francisco J Ballesteros
2007-10-31 21:40 ` Russ Cox
2007-10-31 22:11 ` Charles Forsyth
2007-10-31 22:26 ` Francisco J Ballesteros
2007-10-31 22:37 ` Charles Forsyth
2007-10-31 22:43 ` Francisco J Ballesteros
2007-10-31 23:32 ` Eric Van Hensbergen
2007-10-31 23:41 ` [V9fs-developer] " Charles Forsyth
[not found] ` <606b6f003ae9f0ed3e8c3c5f90ddc720@terzarima.net>
2007-11-01 1:13 ` Eric Van Hensbergen
2007-10-31 23:54 ` erik quanstrom
2007-11-01 0:03 ` Charles Forsyth
2007-11-01 1:25 ` Eric Van Hensbergen
2007-11-01 1:44 ` erik quanstrom
2007-11-01 2:15 ` Eric Van Hensbergen
2007-11-01 7:34 ` Skip Tavakkolian
2007-11-01 6:21 ` Bakul Shah
2007-11-01 14:28 ` Russ Cox
2007-11-01 14:38 ` erik quanstrom
2007-11-01 14:41 ` Charles Forsyth
2007-11-01 15:26 ` Sape Mullender
2007-11-01 15:51 ` Latchesar Ionkov
2007-11-01 16:04 ` ron minnich
2007-11-01 16:16 ` Latchesar Ionkov
2007-11-01 16:21 ` Sape Mullender
2007-11-01 16:58 ` Francisco J Ballesteros
2007-11-01 17:11 ` Charles Forsyth
2007-11-01 17:11 ` Francisco J Ballesteros
2007-11-01 17:13 ` Sape Mullender
2007-11-01 17:38 ` ron minnich
2007-11-01 17:56 ` Francisco J Ballesteros
2007-11-01 18:01 ` Francisco J Ballesteros
2007-11-01 18:52 ` Eric Van Hensbergen
2007-11-01 19:29 ` Francisco J Ballesteros
2007-11-01 23:24 ` ron minnich
2007-11-01 17:03 ` Russ Cox
2007-11-01 17:12 ` Sape Mullender
2007-11-01 17:35 ` erik quanstrom
2007-11-01 18:36 ` erik quanstrom
2007-11-01 17:13 ` Charles Forsyth
2007-11-01 17:16 ` Charles Forsyth
2007-11-01 17:20 ` Charles Forsyth
2007-11-01 17:52 ` Eric Van Hensbergen
2007-11-01 18:00 ` Latchesar Ionkov
2007-11-01 18:03 ` Francisco J Ballesteros
2007-11-01 18:08 ` Latchesar Ionkov
2007-11-01 18:16 ` erik quanstrom
2007-11-01 18:19 ` Francisco J Ballesteros
2007-11-01 18:35 ` Sape Mullender
2007-11-01 19:09 ` Charles Forsyth
2007-11-01 19:07 ` erik quanstrom
2007-11-01 17:14 ` Bakul Shah
2007-11-01 16:17 ` Sape Mullender
2007-11-01 16:27 ` Sape Mullender
2007-11-01 16:58 ` Sape Mullender
2007-11-01 16:59 ` Bakul Shah
2007-11-01 4:21 Brian L. Stuart
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