From: "David McClain" <dmcclain1@mindspring.com>
To: "caml" <caml-list@inria.fr>
Subject: [Caml-list] Wish List for Large Mutable Objects
Date: Sat, 31 Jul 2004 11:29:28 -0700 [thread overview]
Message-ID: <003301c4772c$5435b9d0$0201a8c0@dylan> (raw)
Something I would like to see appear in the OCaml libraries, and I don't
have it yet myself, is the use of Copy-on-Write and Scatter-Gather applied
to large mutable objects such as BigArrays. When a request to copy the
object arrives, it is immediately satisfied in mere nanoseconds, delaying
the actual copying operation until (if ever) some code attempts to mutate
one of the cells. Actual copying would frequently be a huge undertaking and
costing a great deal in runtime performance.
The Scatter-Gather would be useful in managing arrays where only a small
part of the array has actually been mutated. Perhaps some kind of frame
paging applied to the array proper. That way the COW only has to replicate
small portions of the array for the user who requested a copy.
David McClain
Senior Corporate Scientist
Avisere, Inc.
+1.520.390.7738 (USA)
david.mcclain@avisere.com
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next reply other threads:[~2004-07-31 18:28 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-07-31 18:29 David McClain [this message]
2004-08-01 3:36 ` Brandon J. Van Every
2004-08-02 5:28 ` Brandon J. Van Every
2004-08-01 4:06 ` Brandon J. Van Every
2004-08-02 2:38 ` David McClain
2004-08-02 3:20 ` Brandon J. Van Every
2004-08-02 3:32 ` David McClain
2004-08-02 5:14 ` Brandon J. Van Every
2004-08-02 8:00 ` Ville-Pertti Keinonen
2004-08-02 9:12 ` David McClain
2004-08-04 7:24 ` Alex Baretta
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