From: Robert Dewar <robert_dewar@my-deja.com>
Subject: Re: Optimization Question
Date: Mon, 22 Jan 2001 16:17:11 GMT
Date: 2001-01-22T16:17:11+00:00 [thread overview]
Message-ID: <94hmdt$nqd$1@nnrp1.deja.com> (raw)
In-Reply-To: 94hje0$kui$1@nnrp1.deja.com
In article <94hje0$kui$1@nnrp1.deja.com>,
Ted Dennison <dennison@telepath.com> wrote:
> Does Gnat's implementation of the *_IO packages do no
> buffering at all?
Of course it does buffering (RTFM). That's not the issue!
The issue is that if you do a call for byte by byte, there
is a lot of computational overhead. For example, this means
you have to check for each byte written whether the file is
currently open in the appropriate mode.
If you think "oh well, surely it will be buffered, so I won't
find it that inefficient", you are operating in the dark :-)
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next prev parent reply other threads:[~2001-01-22 16:17 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-01-22 0:05 Optimization Question dvdeug
2001-01-22 1:57 ` Robert Dewar
2001-01-22 3:22 ` dvdeug
2001-01-22 4:05 ` Robert Dewar
2001-01-22 4:06 ` Robert Dewar
2001-01-22 19:04 ` M. Kotiaho
2001-01-22 20:22 ` dvdeug
2001-01-22 15:24 ` Ted Dennison
2001-01-22 16:12 ` Robert Dewar
2001-01-22 16:48 ` Ted Dennison
2001-01-22 16:15 ` Robert Dewar
2001-01-22 15:26 ` Ted Dennison
2001-01-22 16:17 ` Robert Dewar [this message]
2001-01-22 16:59 ` Ted Dennison
2001-01-22 22:01 ` Keith Thompson
2001-01-22 22:52 ` dvdeug
2001-01-23 6:46 ` Keith Thompson
[not found] ` <94ld65$1hs$1@nnrp1.deja.com>
[not found] ` <864ryodb1q.fsf@acm.org>
[not found] ` <3A6F663E.C84B94D8@acm.org>
2001-01-26 16:30 ` Optimization Question -- Follow up on using the stream read (and write) procedures directly Jeff Creem
2001-01-26 21:46 ` Florian Weimer
2001-01-27 19:14 ` Jeff Creem
2001-01-28 0:26 ` Robert Dewar
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