From: Robert Klemme <bob.news@...>
Date: 2003-04-07T16:47:39+09:00
Subject: Re: Newbie question:read file speed


"ts" <decoux@moulon.inra.fr> schrieb im Newsbeitrag
news:200304051149.h35Bnw421543@moulon.inra.fr...
> >>>>> "P" == Paul Brannan <pbrannan@atdesk.com> writes:
>
> P> I would expect that using read/write directly instead of going
through
> P> the C interface would be faster and more portable than going under
the
> P> hood of the C library.  If a particular system does not have
read/write,
> P> then it can be simulated using fread/fwrite with buffering disabled.
>
>  If you use read/write you have to manage a buffer, why do you want to
>  manage a buffer when you can use the internal buffer used by the C
>  library.

Maybe because it's more portable?  If you have to rely on internals of a
lib that may change then you might be better off to memory map a file
yourself and do the buffer management yourself, too.  Just guessing since
I'm no OS internals hacker.

Regards

    robert