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From: c9c-eh@dorothy.Berkeley.EDU (Warner Young (WHY))
Newsgroups: comp.sys.atari.st
Subject: Re: FILE I/O
Message-ID: <4877@zen.berkeley.edu>
Date: Fri, 13-Nov-87 02:50:40 EST
Article-I.D.: zen.4877
Posted: Fri Nov 13 02:50:40 1987
Date-Received: Sun, 15-Nov-87 06:28:11 EST
References: <2023@homxc.UUCP> <2862@batcomputer.tn.cornell.edu> <2064@homxc.UUCP>
Sender: news@zen.berkeley.edu
Reply-To: c9c-eh@dorothy.Berkeley.EDU.UUCP (Warner Young (WHY))
Organization: Safety Seal Software (no really, I'll write something, someday)
Lines: 32
Keywords: C, Fseek, fseek

In article <2064@homxc.UUCP> jdn@homxc.UUCP (J.NAGY) writes:
>In article <2862@batcomputer.tn.cornell.edu>, braner@batcomputer.tn.cornell.edu (braner) writes:
>> 
>> The raw GEMDOS functions are faster (due to
>> no buffering) but you should set up your own buffering.  
>
>I don't quite understand this.  If I have to do my own buffering with
>Fread, while fread does the buffering for me, then the fread call
>appears easier to use.  And since the application has to buffer Fread
>calls itself, any speed advantage of Fread (due to no buffering!) is
>negated. So I can see no advantage to the Fread.
>

	I wondered about this also, for some time.  Then I decided to
	test it out.  A friend and I each wrote the same program, but
	I used the capital F calls, and he the lower case f calls.  I
	even put more bells and whistles into my program, and the speed
	is significantly higher, even accounting for the fact that I
	have to do my own buffering and managing.

	8K to 16K are the best speeds, to get the most out of your
	floppies.  I haven't done any tests to see how much difference
	buffer size makes on a hard disk (my Supra died!).

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