Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: utzoo!utgpu!water!watnot!watmath!clyde!rutgers!ames!ucbcad!ucbvax!decvax!decwrl!pyramid!prls!philabs!tg!dasys1!schuster
From: schuster@dasys1.UUCP
Newsgroups: comp.sys.atari.8bit
Subject: Re: US DOUBLER SLOWER SOMETIMES??
Message-ID: <291@dasys1.UUCP>
Date: Sat, 21-Feb-87 18:20:29 EST
Article-I.D.: dasys1.291
Posted: Sat Feb 21 18:20:29 1987
Date-Received: Thu, 26-Feb-87 22:29:04 EST
References: <8133@decwrl.DEC.COM>
Organization: The Big Electric Cat
Lines: 20
Summary: When the Doubler is faster and when it isn't

In article <8133@decwrl.DEC.COM>, curzon@kaoa01.dec.com writes:
>     I have heard that the hi-speed write and read applies only to binary files;
> and that Sparta with doubler actually works more slowly than other DOS's with
> other file types. 
> 
>     Specifically, does it really work more slowly reading/writing Action source
>	 code files, than say Smartdos etc? 


The USDoubler achieves fast read/writes by a combination of track buffering
and custom disk formatting. The speed is not dependent on the type of files
being read; all that matters is that standard CIO calls be used to do the
i/o. SpartaDos is the _only_ DOS which can achieve optimum disk formatting
by using a special interleave. If you stick to it (and there's no reason
not to these days) you will get rapid i/o regardless of file type.

-- 
Mike Schuster                    {allegra,philabs,cmcl2}!phri\
Big Electric Cat Public Unix     {bellcore,harpo,cmcl2}!cucard!dasys1!schuster
New York, NY, USA                                {philabs}!tg/