From: Dave Eckhardt <davide+p9@cs.cmu.edu>
To: Fans of the OS Plan 9 from Bell Labs <9fans@cse.psu.edu>
Subject: Re: [9fans] rfork(RFPROC) and ffork()
Date: Mon, 31 Oct 2005 16:31:14 -0500 [thread overview]
Message-ID: <9541.1130794274@piper.nectar.cs.cmu.edu> (raw)
In-Reply-To: <A3801F07-7768-44CC-8D4C-BB64018B7B96@orthanc.ca>
>> Heck, it could be as simple as "each message is 1 directory,
>> containing chunks stored one per file, named by integers, and the
>> original message is formed by cat'ing the chunks in numerical
>> order".
> This turns out to be a pessimization.
Of what?
One possible goal (not the only consideration) would be for
the N copies of a monster attachment received by your N
users to occupy space==1 instead of space==N. Cyrus IMAP
does this in certain circumstances. Fossil+Venti will do
it automatically, but only (at present) if the attachment
is aligned the same way in each user's mailbox, which it
frequently won't be...or if it's stored out of line in a
separate file, which would align it the same way for all N
users.
Maybe it's not worth worrying about.
Dave Eckhardt
next prev parent reply other threads:[~2005-10-31 21:31 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-10-29 15:34 erik quanstrom
2005-10-29 19:11 ` William Josephson
2005-10-29 19:18 ` Russ Cox
2005-10-29 23:00 ` erik quanstrom
2005-10-29 23:24 ` Francisco J Ballesteros
2005-10-29 23:38 ` Russ Cox
2005-10-30 0:19 ` erik quanstrom
2005-10-30 1:07 ` Russ Cox
2005-10-30 1:15 ` Ronald G Minnich
2005-10-30 1:22 ` geoff
2005-10-30 1:58 ` jmk
2005-10-30 1:54 ` Dave Eckhardt
2005-10-30 2:24 ` erik quanstrom
2005-10-30 2:51 ` geoff
2005-10-30 1:10 ` geoff
2005-10-30 1:18 ` Paul Lalonde
2005-10-30 6:52 ` Skip Tavakkolian
2005-10-30 10:14 ` Francisco J Ballesteros
2005-10-30 15:17 ` Russ Cox
2005-10-30 23:00 ` Dave Eckhardt
2005-10-30 23:14 ` George Michaelson
2005-10-31 2:15 ` erik quanstrom
2005-10-31 2:33 ` geoff
2005-10-31 3:23 ` Skip Tavakkolian
2005-10-31 4:20 ` Lyndon Nerenberg
2005-10-31 21:31 ` Dave Eckhardt [this message]
2005-10-31 4:06 ` [9fans] Scaleable mail repositories Lyndon Nerenberg
2005-10-31 10:55 ` C H Forsyth
2005-10-31 12:32 ` erik quanstrom
2005-11-01 19:56 ` rog
2005-11-01 22:29 ` Francisco J Ballesteros
2005-11-08 19:56 ` rog
2005-11-08 23:22 ` Joel Salomon
2005-11-09 0:51 ` Caerwyn Jones
2005-11-09 0:55 ` Russ Cox
2005-11-09 3:32 ` erik quanstrom
2005-10-31 15:30 ` jmk
2005-10-30 1:10 ` [9fans] rfork(RFPROC) and ffork() William Josephson
2005-10-31 14:48 ` Russ Cox
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