English version
Accueil     À propos     Téléchargement     Ressources     Contactez-nous    

Ce site est rarement mis à jour. Pour les informations les plus récentes, rendez-vous sur le nouveau site OCaml à l'adresse ocaml.org.

Browse thread
ANNOUNCE : libsndfile-ocaml alpha
[ Home ] [ Index: by date | by threads ]
[ Search: ]

[ Message by date: previous | next ] [ Message in thread: previous | next ] [ Thread: previous | next ]
Date: 2007-01-02 (05:26)
From: Erick Tryzelaar <erickt@d...>
Subject: Re: [Caml-list] ANNOUNCE : libsndfile-ocaml alpha
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?