Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!shadooby!ginosko!usc!apple!agate!ucbvax!ucdavis!iris!rogers
From: rogers@iris.ucdavis.edu (Brewski Rogers)
Newsgroups: comp.sys.amiga.tech
Subject: Re: dos_stuff
Keywords: Spam,dos,spamalopes
Message-ID: <5571@ucdavis.ucdavis.edu>
Date: 11 Oct 89 06:44:43 GMT
Sender: uucp@ucdavis.ucdavis.edu
Reply-To: rogers@iris.ucdavis.edu (Brewski Rogers)
Organization: U.C. Davis - Department of Electrical Engineering and Computer Science
Lines: 34

mail bounced, so:

In article <126083@sun.Eng.Sun.COM> you write:
>First, put all of the files in one big file, this will help a bit. Then
>layout the file so that the FileHeader block in on some track, and then
>all of the data blocks for that file are on that track and the next one
>over, then on the third track over, put your final set of blocks and
>the FileExtensionBlock, and then the some more data blocks. Basically,
>by putting the directory entry on the same track as the data, and the
>extension block on the same track as it's data the heads won't seek at
>all and you will get essentially full bandwidth. Now the only way to do
>this is to format a disk. Use a custom program to lay down the data file,
>let AmigaDOS revalidate the disk and then add the rest of your files. 
>into. That would speed things up tremendously.
>

How would I go about writing out this special file? Is there some
utility that would do it? I haven't had much experience with amigados
other than Read/Write/Seek.  

So putting all my little files into one big file should help too?
the big file would be about 500K in that case, and a typical load
of a map would need to go through just about the whole thing reading
in the 120K of data it wanted.

thanks for the reply, that super-file sounds cool!
	-Bruce


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