From: Erick Tryzelaar <erickt@dslextreme.com>
To: Erik de Castro Lopo <mle+ocaml@mega-nerd.com>
Cc: skaller <skaller@users.sourceforge.net>,
caml-list@yquem.inria.fr, matthieu.dubuget@laposte.net
Subject: Re: [Caml-list] ANNOUNCE : libsndfile-ocaml alpha
Date: Mon, 01 Jan 2007 21:26:45 -0800 [thread overview]
Message-ID: <4599ED15.3080004@dslextreme.com> (raw)
In-Reply-To: <20070102121424.07da295b.mle+ocaml@mega-nerd.com>
Erik de Castro Lopo wrote:
> skaller wrote:
>
>> Why not? That's tiny compared to available address space on a 64
>> bit machine, and personal computers have heaps
>> of free address space
>>
>
> Ok, so someone writes a simple application that loads the whole file
> into memory and then plays it. Unfortunately disk transfer speeds being
> in the order of 100 Mb/sec means that its going to take 110 seconds to
> load that file. Thats bad!
>
> Obviously, the smart way to do it is to stream that file off disk 100kB
> chunks at a time. Thats what libsndfile is designed and optimised for.
>
> Erik
>
But a mem-mapped file shouldn't be loaded into physical memory until
it's accessed, and then only the page that has the data, right?
-e
next prev parent reply other threads:[~2007-01-02 5:26 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-12-22 4:54 Erik de Castro Lopo
2006-12-27 9:32 ` [Caml-list] " Vu Ngoc San
2006-12-27 10:10 ` Erik de Castro Lopo
2006-12-27 10:42 ` Erik de Castro Lopo
2006-12-30 21:07 ` Erik de Castro Lopo
2006-12-31 3:31 ` skaller
2006-12-31 4:23 ` Erik de Castro Lopo
2006-12-31 11:08 ` Richard Jones
2006-12-31 22:51 ` Erik de Castro Lopo
2007-01-01 14:53 ` Matthieu Dubuget
2007-01-01 19:58 ` Erik de Castro Lopo
2007-01-02 0:51 ` skaller
2007-01-02 1:14 ` Erik de Castro Lopo
2007-01-02 5:26 ` Erick Tryzelaar [this message]
2007-01-02 5:39 ` Erik de Castro Lopo
[not found] ` <1167765505.5341.12.camel@rosella.wigram>
2007-01-02 22:37 ` Erik de Castro Lopo
2007-01-02 23:46 ` Gerd Stolpmann
2007-01-03 1:59 ` Pal-Kristian Engstad
2007-01-03 2:49 ` Markus Mottl
2007-01-02 7:47 ` Christoph Bauer
2006-12-31 19:05 ` skaller
2006-12-31 22:54 ` Erik de Castro Lopo
2007-01-02 10:56 ` Vu Ngoc San
2007-01-02 11:27 ` Erik de Castro Lopo
2007-01-02 19:39 ` David Baelde
2007-01-02 23:04 ` Erik de Castro Lopo
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