Xref: utzoo comp.sys.amiga.tech:7570 comp.sys.amiga:41588
Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!cs.utexas.edu!ginosko!brutus.cs.uiuc.edu!apple!agate!ucbvax!ucdavis!iris!rogers
From: rogers@iris.ucdavis.edu (Brewski Rogers)
Newsgroups: comp.sys.amiga.tech,comp.sys.amiga
Subject: Re: More dos questions
Keywords: dos,spam
Message-ID: <5613@ucdavis.ucdavis.edu>
Date: 13 Oct 89 21:28:39 GMT
References: <5599@ucdavis.ucdavis.edu> <8181@cbmvax.UUCP>
Sender: uucp@ucdavis.ucdavis.edu
Reply-To: rogers@iris.ucdavis.edu (Brewski Rogers)
Organization: U.C. Davis - Department of Electrical Cows and Computer Science
Lines: 21

In article <8181@cbmvax.UUCP> daveh@cbmvax.UUCP (Dave Haynie) writes:
>Each file header contains pointers to the first 72 data blocks.  If a file
>is longer than that, the file header will have a pointer to an extension 
>block, which points to the next 72 data blocks, and also has an extension
>block.  So to seek ahead 200K, the filesystem will have to move through 
>5 extension blocks to find the pointer that references the block at 200K.
>
>Dave Haynie Commodore-Amiga (Systems Engineering) "The Crew That Never Rests"


So is there some way I can get dos to buffer the data in the extension
blocks? Or failing that, put them on (or near) the same track that
they reference? Where does AmigaDos tend to put them now?

Thanks a bunch!

------------------------------------------------------          Quantum _\/_
2727 Eel                   Bruce (6502 RULES!) Rogers        |\  Duck  ( 0 0)
Davis, Ca 95616            Quantum Duck Software,           |\ \______/ / \\\
916-756-2684               rogers@iris.ucdavis.edu         |\ <  <     |   \/
"It's better to be the real thing than the right thing."     \________/  Quark!